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Intermittent problem in data transfer MSAccess to Oracle using VBtask. It retrieves data from a MSAccess database and writes to an Oracle database. I write to a log file to make sure the process runs to completion. It worked fine for about two weeks then the app would abort, but only intermittently which makes it very difficult for me to troubleshoot. I tried a number of things without luck, and I am currently pursuing the problem from the Oracle end of things but wanted to see if anyone here has any advice. Here's the running code in its entirety; the only changes I made are to passwords and file server names. Sub Main() On Error GoTo ErrorHandler Dim LogFileName As String, ff As Long, QueryName As String LogFileName = App.Path & "\ServiceLearningUpload.log" QueryName = "qryServiceLearningExport" ' open log file for writing - close it at Exit Sub ff = FreeFile Open LogFileName For Append As #ff ' using Print instead of Write because Write delimits everything in quote marks... Print #ff, Print #ff, "Starting Service Learning upload: " & Format(Now(), "d-mmm-yyyy h:Nn:Ss am/pm") Dim MSAccessConn As String Dim MSAccessConnObj As ADODB.Connection Dim rsSource As ADODB.Recordset 'Dim counter As Long Dim OracleConn As String Dim cmmnd As ADODB.Command MSAccessConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=\\Server1\Folder1\Subfolder1\SERVICE LEARNING.mdb;User Id=admin;Password=;" OracleConn = "Provider=OraOLEDB.Oracle;Data Source=DATASOURCE;User Id=USERID;Password=PASSWORD;" Set MSAccessConnObj = New ADODB.Connection MSAccessConnObj.ConnectionTimeout = 10 ' default is 15 seconds MSAccessConnObj.ConnectionString = MSAccessConn MSAccessConnObj.CommandTimeout = 30 MSAccessConnObj.Open If Not MSAccessConnObj.State = adStateOpen Then Print #ff, "Failed to connect to MSAccess Service Learning database" GoTo ExitSub End If Set rsSource = New ADODB.Recordset rsSource.ActiveConnection = MSAccessConn rsSource.CursorLocation = adUseClient ' to be able to use the RecordCount property rsSource.Source = "SELECT * FROM " & QueryName rsSource.Open If rsSource.EOF And rsSource.BOF Then ' no recordset Print #ff, QueryName & " returned no rows from MSAccess Service Learning database" GoTo ExitSub End If Set cmmnd = New ADODB.Command cmmnd.ActiveConnection = OracleConn cmmnd.CommandType = adCmdText cmmnd.CommandText = "DELETE FROM DATABASE1.TABLE1" cmmnd.Execute Do Until rsSource.EOF cmmnd.CommandText = "INSERT INTO DATABASE1.TABLE1 SELECT '" & rsSource.Fields("Provider") & _ "', '" & rsSource.Fields("Procedure") & "', " & IIf(IsNull(rsSource.Fields("Hours")), "''", rsSource.Fields("Hours")) & _ ", '" & rsSource.Fields("Category") & _ "', '" & Replace(rsSource.Fields("Description"), "'", "''") & _ "', '" & rsSource.Fields("DateX") & _ "', '" & rsSource.Fields("Country") & _ "', " & rsSource.Fields("TripID") & " FROM DUAL" cmmnd.Execute Options:=adExecuteNoRecords rsSource.MoveNext Loop Print #ff, "Upload completed successfully. Number of rows inserted: " & rsSource.RecordCount rsSource.Close Set rsSource = Nothing MSAccessConnObj.Close Set MSAccessConnObj = Nothing ExitSub: Print #ff, "Log file closed: " & Format(Now(), "d-mmm-yyyy h:Nn:Ss am/pm") Close #ff Exit Sub ErrorHandler: Print #ff, "Err.Number = " & Err.Number Print #ff, "Err.Description = " & Err.Description Print #ff, "Provider = " & rsSource.Fields("Provider") Print #ff, "Procedure = " & rsSource.Fields("Procedure") Print #ff, "Hours = " & rsSource.Fields("Hours") Print #ff, "Category = " & rsSource.Fields("Category") Print #ff, "Description = " & rsSource.Fields("Description") Print #ff, "Date = " & rsSource.Fields("DateX") Print #ff, "Country = " & rsSource.Fields("Country") Print #ff, "TripID = " & rsSource.Fields("TripID") GoTo ExitSub End Sub Additional information: 1) It has always executed correctly down to the first iteration of the 'do until...' loop. In other words, it has always written to the log file, connected to the Access database, returned a recordset, connected to the Oracle database and deleted all rows from DATABASE1.TABLE1 with no failures. 2) Every time it fails, it has failed on the first row of the recordset. To check this, I have sorted the Access query in different ways and on different columns; no matter how the recordset is sorted, when it fails, the row returned in the error handler has always been the first row retrieved from the dataset. 3) It has run successfully being executed from the server where it resides, and it has failed from that same server. This is also true running the executable from my machine, both within the IDE and just double-clicking on the .exe file. 4) It runs at 4:00 am five days a week. I check it when I get in to work. If it has failed, I run it by double-clicking on the .exe on my machine. It usually runs to completion at that point; every so often I need to double-click on it a second time because it will fail on my machine. 5) Here's the error log of the latest run; the error message is always the same. The data values will change based on how I have sorted the recordset as described earlier. Starting Service Learning upload: 26-Jul-2010 4:00:00 am Err.Number = -2147217900 Err.Description = ORA-01861: literal does not match format string Provider = I8858303 Procedure = Hours = 6 Category = Local Dental Description = Kansas Avenue Church Health Fair Date = 2010-APR-18 Country = TripID = 2590 Log file closed: 26-Jul-2010 4:00:01 am I do realize this is an Oracle error message and I am currently pursuing this with an Oracle newsgroup as well. I then double-clicked on the .exe file on my machine and it ran to completion, as follows: Starting Service Learning upload: 26-Jul-2010 8:01:35 am Upload completed successfully. Number of rows inserted: 3924 Log file closed: 26-Jul-2010 8:01:50 am 6) Part of one line of code is as follows: IIf(IsNull(rsSource.Fields("Hours")), "''", rsSource.Fields("Hours")) I had to do this because in a very few cases there needs to be a NULL value inserted into the Oracle database in the "Hours" column. If the incoming value is null, it needs to be enclosed in apostrophes; if it is not null, it cannot be enclosed in apostrophes because it is a numeric value. But, I don't think this snippet is causing the problem because it would be happening every time rather than intermittently. I have googled the Oracle error message number and have not been able to figure out how it applies in this case. 7) Here's the table format in Oracle: desc TABLE1 Name Null Type ------------------------------ -------- ------------- Provider NOT NULL CHAR(10) Procedure CHAR(7) Hours NUMBER(5,1) Category VARCHAR2(30) Description VARCHAR2(80) Date DATE Country VARCHAR2(30) TripID NOT NULL NUMBER(6) 8 rows selected One thing that would help is to know which column the error message is referring to; because I'm doing an insert, all data values must be supplied at the same time so I don't know how to isolate the one causing the problem. Also, as far as I know, I'm not using any 'format strings' as stated in the error message. The REPLACE... construct is to replace every instance of one apostrophe with two so that when it gets inserted into the Oracle database the two apostrophes will be stripped back to one. Any and all help will be very much appreciated. And if you've made it thus far, my thanks for simply wading through all of this... Thanks, Carl So if the hour on Access is null, your sql will insert an empty string into
a number field. That will cause an error. You can try changing the IIF clause to put the word NULL, but with quote. It is an Oracle error caused by your program, not by Oracel itself Show quoteHide quote "Carl" <nospam@all.thanks> wrote in message news:OBTBj3PLLHA.6100@TK2MSFTNGP05.phx.gbl... >I created a small executable which runs 5 days a week as a scheduled task. >It retrieves data from a MSAccess database and writes to an Oracle >database. I write to a log file to make sure the process runs to >completion. It worked fine for about two weeks then the app would abort, >but only intermittently which makes it very difficult for me to >troubleshoot. I tried a number of things without luck, and I am currently >pursuing the problem from the Oracle end of things but wanted to see if >anyone here has any advice. > > Here's the running code in its entirety; the only changes I made are to > passwords and file server names. > > Sub Main() > > On Error GoTo ErrorHandler > > Dim LogFileName As String, ff As Long, QueryName As String > LogFileName = App.Path & "\ServiceLearningUpload.log" > QueryName = "qryServiceLearningExport" > ' open log file for writing - close it at Exit Sub > ff = FreeFile > Open LogFileName For Append As #ff > ' using Print instead of Write because Write delimits everything in > quote marks... > Print #ff, > Print #ff, "Starting Service Learning upload: " & Format(Now(), > "d-mmm-yyyy h:Nn:Ss am/pm") > > Dim MSAccessConn As String > Dim MSAccessConnObj As ADODB.Connection > Dim rsSource As ADODB.Recordset > 'Dim counter As Long > > Dim OracleConn As String > Dim cmmnd As ADODB.Command > > MSAccessConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data > Source=\\Server1\Folder1\Subfolder1\SERVICE LEARNING.mdb;User > Id=admin;Password=;" > OracleConn = "Provider=OraOLEDB.Oracle;Data Source=DATASOURCE;User > Id=USERID;Password=PASSWORD;" > > Set MSAccessConnObj = New ADODB.Connection > > MSAccessConnObj.ConnectionTimeout = 10 ' default is 15 seconds > MSAccessConnObj.ConnectionString = MSAccessConn > MSAccessConnObj.CommandTimeout = 30 > MSAccessConnObj.Open > > If Not MSAccessConnObj.State = adStateOpen Then > Print #ff, "Failed to connect to MSAccess Service Learning database" > GoTo ExitSub > End If > > Set rsSource = New ADODB.Recordset > rsSource.ActiveConnection = MSAccessConn > rsSource.CursorLocation = adUseClient ' to be able to use the > RecordCount property > rsSource.Source = "SELECT * FROM " & QueryName > rsSource.Open > > If rsSource.EOF And rsSource.BOF Then ' no recordset > Print #ff, QueryName & " returned no rows from MSAccess Service > Learning database" > GoTo ExitSub > End If > > Set cmmnd = New ADODB.Command > cmmnd.ActiveConnection = OracleConn > cmmnd.CommandType = adCmdText > cmmnd.CommandText = "DELETE FROM DATABASE1.TABLE1" > cmmnd.Execute > > Do Until rsSource.EOF > cmmnd.CommandText = "INSERT INTO DATABASE1.TABLE1 SELECT '" & > rsSource.Fields("Provider") & _ > "', '" & rsSource.Fields("Procedure") & "', " & > IIf(IsNull(rsSource.Fields("Hours")), "''", rsSource.Fields("Hours")) & _ > ", '" & rsSource.Fields("Category") & _ > "', '" & Replace(rsSource.Fields("Description"), "'", "''") & _ > "', '" & rsSource.Fields("DateX") & _ > "', '" & rsSource.Fields("Country") & _ > "', " & rsSource.Fields("TripID") & " FROM DUAL" > > cmmnd.Execute Options:=adExecuteNoRecords > rsSource.MoveNext > Loop > > Print #ff, "Upload completed successfully. Number of rows inserted: " & > rsSource.RecordCount > rsSource.Close > Set rsSource = Nothing > MSAccessConnObj.Close > Set MSAccessConnObj = Nothing > > ExitSub: > Print #ff, "Log file closed: " & Format(Now(), "d-mmm-yyyy h:Nn:Ss > am/pm") > Close #ff > Exit Sub > > ErrorHandler: > Print #ff, "Err.Number = " & Err.Number > Print #ff, "Err.Description = " & Err.Description > Print #ff, "Provider = " & rsSource.Fields("Provider") > Print #ff, "Procedure = " & rsSource.Fields("Procedure") > Print #ff, "Hours = " & rsSource.Fields("Hours") > Print #ff, "Category = " & rsSource.Fields("Category") > Print #ff, "Description = " & rsSource.Fields("Description") > Print #ff, "Date = " & rsSource.Fields("DateX") > Print #ff, "Country = " & rsSource.Fields("Country") > Print #ff, "TripID = " & rsSource.Fields("TripID") > GoTo ExitSub > > End Sub > > Additional information: > > 1) It has always executed correctly down to the first iteration of the 'do > until...' loop. In other words, it has always written to the log file, > connected to the Access database, returned a recordset, connected to the > Oracle database and deleted all rows from DATABASE1.TABLE1 with no > failures. > > 2) Every time it fails, it has failed on the first row of the recordset. > To check this, I have sorted the Access query in different ways and on > different columns; no matter how the recordset is sorted, when it fails, > the row returned in the error handler has always been the first row > retrieved from the dataset. > > 3) It has run successfully being executed from the server where it > resides, and it has failed from that same server. This is also true > running the executable from my machine, both within the IDE and just > double-clicking on the .exe file. > > 4) It runs at 4:00 am five days a week. I check it when I get in to work. > If it has failed, I run it by double-clicking on the .exe on my machine. > It usually runs to completion at that point; every so often I need to > double-click on it a second time because it will fail on my machine. > > 5) Here's the error log of the latest run; the error message is always the > same. The data values will change based on how I have sorted the recordset > as described earlier. > > Starting Service Learning upload: 26-Jul-2010 4:00:00 am > Err.Number = -2147217900 > Err.Description = ORA-01861: literal does not match format string > Provider = I8858303 > Procedure = > Hours = 6 > Category = Local Dental > Description = Kansas Avenue Church Health Fair > Date = 2010-APR-18 > Country = > TripID = 2590 > Log file closed: 26-Jul-2010 4:00:01 am > > I do realize this is an Oracle error message and I am currently pursuing > this with an Oracle newsgroup as well. > > I then double-clicked on the .exe file on my machine and it ran to > completion, as follows: > > Starting Service Learning upload: 26-Jul-2010 8:01:35 am > Upload completed successfully. Number of rows inserted: 3924 > Log file closed: 26-Jul-2010 8:01:50 am > > 6) Part of one line of code is as follows: > > IIf(IsNull(rsSource.Fields("Hours")), "''", rsSource.Fields("Hours")) > > I had to do this because in a very few cases there needs to be a NULL > value inserted into the Oracle database in the "Hours" column. If the > incoming value is null, it needs to be enclosed in apostrophes; if it is > not null, it cannot be enclosed in apostrophes because it is a numeric > value. But, I don't think this snippet is causing the problem because it > would be happening every time rather than intermittently. I have googled > the Oracle error message number and have not been able to figure out how > it applies in this case. > > 7) Here's the table format in Oracle: > > desc TABLE1 > Name Null Type > ------------------------------ -------- ------------- > Provider NOT NULL CHAR(10) > Procedure CHAR(7) > Hours NUMBER(5,1) > Category VARCHAR2(30) > Description VARCHAR2(80) > Date DATE > Country VARCHAR2(30) > TripID NOT NULL NUMBER(6) > 8 rows selected > > One thing that would help is to know which column the error message is > referring to; because I'm doing an insert, all data values must be > supplied at the same time so I don't know how to isolate the one causing > the problem. Also, as far as I know, I'm not using any 'format strings' as > stated in the error message. The REPLACE... construct is to replace every > instance of one apostrophe with two so that when it gets inserted into the > Oracle database the two apostrophes will be stripped back to one. > > Any and all help will be very much appreciated. And if you've made it thus > far, my thanks for simply wading through all of this... > > Thanks, > Carl Actually, the rows with null values in the Hours column don't seem to be
triggering the error condition. When it does fail, the row it fails on has always had a numeric value in the Hours column. But I will try your suggestion. Thanks, Carl Phil Hunt wrote: Show quoteHide quote > So if the hour on Access is null, your sql will insert an empty string into > a number field. That will cause an error. > You can try changing the IIF clause to put the word NULL, but with quote. > > It is an Oracle error caused by your program, not by Oracel itself > > "Carl" <nospam@all.thanks> wrote in message > news:OBTBj3PLLHA.6100@TK2MSFTNGP05.phx.gbl... > >>I created a small executable which runs 5 days a week as a scheduled task. >>It retrieves data from a MSAccess database and writes to an Oracle >>database. I write to a log file to make sure the process runs to >>completion. It worked fine for about two weeks then the app would abort, >>but only intermittently which makes it very difficult for me to >>troubleshoot. I tried a number of things without luck, and I am currently >>pursuing the problem from the Oracle end of things but wanted to see if >>anyone here has any advice. >> >>Here's the running code in its entirety; the only changes I made are to >>passwords and file server names. >> >>Sub Main() >> >> On Error GoTo ErrorHandler >> >> Dim LogFileName As String, ff As Long, QueryName As String >> LogFileName = App.Path & "\ServiceLearningUpload.log" >> QueryName = "qryServiceLearningExport" >> ' open log file for writing - close it at Exit Sub >> ff = FreeFile >> Open LogFileName For Append As #ff >> ' using Print instead of Write because Write delimits everything in >>quote marks... >> Print #ff, >> Print #ff, "Starting Service Learning upload: " & Format(Now(), >>"d-mmm-yyyy h:Nn:Ss am/pm") >> >> Dim MSAccessConn As String >> Dim MSAccessConnObj As ADODB.Connection >> Dim rsSource As ADODB.Recordset >> 'Dim counter As Long >> >> Dim OracleConn As String >> Dim cmmnd As ADODB.Command >> >> MSAccessConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data >>Source=\\Server1\Folder1\Subfolder1\SERVICE LEARNING.mdb;User >>Id=admin;Password=;" >> OracleConn = "Provider=OraOLEDB.Oracle;Data Source=DATASOURCE;User >>Id=USERID;Password=PASSWORD;" >> >> Set MSAccessConnObj = New ADODB.Connection >> >> MSAccessConnObj.ConnectionTimeout = 10 ' default is 15 seconds >> MSAccessConnObj.ConnectionString = MSAccessConn >> MSAccessConnObj.CommandTimeout = 30 >> MSAccessConnObj.Open >> >> If Not MSAccessConnObj.State = adStateOpen Then >> Print #ff, "Failed to connect to MSAccess Service Learning database" >> GoTo ExitSub >> End If >> >> Set rsSource = New ADODB.Recordset >> rsSource.ActiveConnection = MSAccessConn >> rsSource.CursorLocation = adUseClient ' to be able to use the >>RecordCount property >> rsSource.Source = "SELECT * FROM " & QueryName >> rsSource.Open >> >> If rsSource.EOF And rsSource.BOF Then ' no recordset >> Print #ff, QueryName & " returned no rows from MSAccess Service >>Learning database" >> GoTo ExitSub >> End If >> >> Set cmmnd = New ADODB.Command >> cmmnd.ActiveConnection = OracleConn >> cmmnd.CommandType = adCmdText >> cmmnd.CommandText = "DELETE FROM DATABASE1.TABLE1" >> cmmnd.Execute >> >> Do Until rsSource.EOF >> cmmnd.CommandText = "INSERT INTO DATABASE1.TABLE1 SELECT '" & >>rsSource.Fields("Provider") & _ >> "', '" & rsSource.Fields("Procedure") & "', " & >>IIf(IsNull(rsSource.Fields("Hours")), "''", rsSource.Fields("Hours")) & _ >> ", '" & rsSource.Fields("Category") & _ >> "', '" & Replace(rsSource.Fields("Description"), "'", "''") & _ >> "', '" & rsSource.Fields("DateX") & _ >> "', '" & rsSource.Fields("Country") & _ >> "', " & rsSource.Fields("TripID") & " FROM DUAL" >> >> cmmnd.Execute Options:=adExecuteNoRecords >> rsSource.MoveNext >> Loop >> >> Print #ff, "Upload completed successfully. Number of rows inserted: " & >>rsSource.RecordCount >> rsSource.Close >> Set rsSource = Nothing >> MSAccessConnObj.Close >> Set MSAccessConnObj = Nothing >> >>ExitSub: >> Print #ff, "Log file closed: " & Format(Now(), "d-mmm-yyyy h:Nn:Ss >>am/pm") >> Close #ff >> Exit Sub >> >>ErrorHandler: >> Print #ff, "Err.Number = " & Err.Number >> Print #ff, "Err.Description = " & Err.Description >> Print #ff, "Provider = " & rsSource.Fields("Provider") >> Print #ff, "Procedure = " & rsSource.Fields("Procedure") >> Print #ff, "Hours = " & rsSource.Fields("Hours") >> Print #ff, "Category = " & rsSource.Fields("Category") >> Print #ff, "Description = " & rsSource.Fields("Description") >> Print #ff, "Date = " & rsSource.Fields("DateX") >> Print #ff, "Country = " & rsSource.Fields("Country") >> Print #ff, "TripID = " & rsSource.Fields("TripID") >> GoTo ExitSub >> >>End Sub >> >>Additional information: >> >>1) It has always executed correctly down to the first iteration of the 'do >>until...' loop. In other words, it has always written to the log file, >>connected to the Access database, returned a recordset, connected to the >>Oracle database and deleted all rows from DATABASE1.TABLE1 with no >>failures. >> >>2) Every time it fails, it has failed on the first row of the recordset. >>To check this, I have sorted the Access query in different ways and on >>different columns; no matter how the recordset is sorted, when it fails, >>the row returned in the error handler has always been the first row >>retrieved from the dataset. >> >>3) It has run successfully being executed from the server where it >>resides, and it has failed from that same server. This is also true >>running the executable from my machine, both within the IDE and just >>double-clicking on the .exe file. >> >>4) It runs at 4:00 am five days a week. I check it when I get in to work. >>If it has failed, I run it by double-clicking on the .exe on my machine. >>It usually runs to completion at that point; every so often I need to >>double-click on it a second time because it will fail on my machine. >> >>5) Here's the error log of the latest run; the error message is always the >>same. The data values will change based on how I have sorted the recordset >>as described earlier. >> >>Starting Service Learning upload: 26-Jul-2010 4:00:00 am >>Err.Number = -2147217900 >>Err.Description = ORA-01861: literal does not match format string >>Provider = I8858303 >>Procedure = >>Hours = 6 >>Category = Local Dental >>Description = Kansas Avenue Church Health Fair >>Date = 2010-APR-18 >>Country = >>TripID = 2590 >>Log file closed: 26-Jul-2010 4:00:01 am >> >>I do realize this is an Oracle error message and I am currently pursuing >>this with an Oracle newsgroup as well. >> >>I then double-clicked on the .exe file on my machine and it ran to >>completion, as follows: >> >>Starting Service Learning upload: 26-Jul-2010 8:01:35 am >>Upload completed successfully. Number of rows inserted: 3924 >>Log file closed: 26-Jul-2010 8:01:50 am >> >>6) Part of one line of code is as follows: >> >>IIf(IsNull(rsSource.Fields("Hours")), "''", rsSource.Fields("Hours")) >> >>I had to do this because in a very few cases there needs to be a NULL >>value inserted into the Oracle database in the "Hours" column. If the >>incoming value is null, it needs to be enclosed in apostrophes; if it is >>not null, it cannot be enclosed in apostrophes because it is a numeric >>value. But, I don't think this snippet is causing the problem because it >>would be happening every time rather than intermittently. I have googled >>the Oracle error message number and have not been able to figure out how >>it applies in this case. >> >>7) Here's the table format in Oracle: >> >>desc TABLE1 >>Name Null Type >>------------------------------ -------- ------------- >>Provider NOT NULL CHAR(10) >>Procedure CHAR(7) >>Hours NUMBER(5,1) >>Category VARCHAR2(30) >>Description VARCHAR2(80) >>Date DATE >>Country VARCHAR2(30) >>TripID NOT NULL NUMBER(6) >>8 rows selected >> >>One thing that would help is to know which column the error message is >>referring to; because I'm doing an insert, all data values must be >>supplied at the same time so I don't know how to isolate the one causing >>the problem. Also, as far as I know, I'm not using any 'format strings' as >>stated in the error message. The REPLACE... construct is to replace every >>instance of one apostrophe with two so that when it gets inserted into the >>Oracle database the two apostrophes will be stripped back to one. >> >>Any and all help will be very much appreciated. And if you've made it thus >>far, my thanks for simply wading through all of this... >> >>Thanks, >>Carl > > > On 26/07/2010 21:05, Carl wrote:
> I created a small executable which runs 5 days a week as a scheduled <SNIP>> task. It retrieves data from a MSAccess database and writes to an Oracle > database. I write to a log file to make sure the process runs to > completion. It worked fine for about two weeks then the app would abort, > but only intermittently which makes it very difficult for me to > troubleshoot. I tried a number of things without luck, and I am > currently pursuing the problem from the Oracle end of things but wanted > to see if anyone here has any advice. Have you tried logging the SQL statement being run? Assign it to a variable then execute that, and you can then include that in the log (as it won't be changed by anything else) -- Dee Earley (dee.ear***@icode.co.uk) i-Catcher Development Team iCode Systems (Replies direct to my email address will be ignored. Please reply to the group.) Thanks for your reply. I created the SQL statement as a string during
the testing/debugging process but removed that part when it worked correctly. I'm going to put that back in to see the exact statement being executed. Carl Dee Earley wrote: Show quoteHide quote > On 26/07/2010 21:05, Carl wrote: > >> I created a small executable which runs 5 days a week as a scheduled >> task. It retrieves data from a MSAccess database and writes to an Oracle >> database. I write to a log file to make sure the process runs to >> completion. It worked fine for about two weeks then the app would abort, >> but only intermittently which makes it very difficult for me to >> troubleshoot. I tried a number of things without luck, and I am >> currently pursuing the problem from the Oracle end of things but wanted >> to see if anyone here has any advice. > > <SNIP> > > Have you tried logging the SQL statement being run? > Assign it to a variable then execute that, and you can then include that > in the log (as it won't be changed by anything else) > On Mon, 26 Jul 2010 13:05:25 -0700, Carl <nospam@all.thanks> wrote:
Show quoteHide quote > Instead of just accessing the VB Error, also enumerate the>ErrorHandler: > Print #ff, "Err.Number = " & Err.Number > Print #ff, "Err.Description = " & Err.Description > Print #ff, "Provider = " & rsSource.Fields("Provider") > Print #ff, "Procedure = " & rsSource.Fields("Procedure") > Print #ff, "Hours = " & rsSource.Fields("Hours") > Print #ff, "Category = " & rsSource.Fields("Category") > Print #ff, "Description = " & rsSource.Fields("Description") > Print #ff, "Date = " & rsSource.Fields("DateX") > Print #ff, "Country = " & rsSource.Fields("Country") > Print #ff, "TripID = " & rsSource.Fields("TripID") > GoTo ExitSub > ADODB.Connection Errors collection. There may be additional information in subsequent errors. http://www.devx.com/tips/Tip/13483 How is the size of the MDB? Is it growing? Does it shrink dramatically when compacted? If so you may want to write an automatic compact routine providing weekly maintenance. I have on occasion run into weird intermittent errors with MSAccess where simply restarting the application or performing a "do-over" works. I often punt - at least until I can isolate the specific problem - by wrapping the routine with a process that simply waits for a bit then trys again. The 'wait interval' can be random or progressive. Always supply a bail-out count - so many tries then fail for good. -ralph I will add functionality to look at the ADODB.Connection errors
collection - thanks for the link. The MDB file is relatively small; 26 MB which compacted down to 13MB this morning when I ran Compact and Repair Database from the Tools>Database Utilities menu. Just for testing purposes, I ticked the 'Compact on Close' checkbox under Tools>Options>General. I'll post back when the issue gets resolved and if I know what ultimately resolved it :-) Again, thanks for your time. Carl ralph wrote: Show quoteHide quote > On Mon, 26 Jul 2010 13:05:25 -0700, Carl <nospam@all.thanks> wrote: > > > >>ErrorHandler: >> Print #ff, "Err.Number = " & Err.Number >> Print #ff, "Err.Description = " & Err.Description >> Print #ff, "Provider = " & rsSource.Fields("Provider") >> Print #ff, "Procedure = " & rsSource.Fields("Procedure") >> Print #ff, "Hours = " & rsSource.Fields("Hours") >> Print #ff, "Category = " & rsSource.Fields("Category") >> Print #ff, "Description = " & rsSource.Fields("Description") >> Print #ff, "Date = " & rsSource.Fields("DateX") >> Print #ff, "Country = " & rsSource.Fields("Country") >> Print #ff, "TripID = " & rsSource.Fields("TripID") >> GoTo ExitSub >> > > > Instead of just accessing the VB Error, also enumerate the > ADODB.Connection Errors collection. There may be additional > information in subsequent errors. > http://www.devx.com/tips/Tip/13483 > > > How is the size of the MDB? Is it growing? Does it shrink dramatically > when compacted? If so you may want to write an automatic compact > routine providing weekly maintenance. > > I have on occasion run into weird intermittent errors with MSAccess > where simply restarting the application or performing a "do-over" > works. I often punt - at least until I can isolate the specific > problem - by wrapping the routine with a process that simply waits for > a bit then trys again. The 'wait interval' can be random or > progressive. Always supply a bail-out count - so many tries then fail > for good. > > -ralph On Mon, 26 Jul 2010 13:05:25 -0700, Carl <nospam@all.thanks> wrote:
¤ Do Until rsSource.EOF ¤ cmmnd.CommandText = "INSERT INTO DATABASE1.TABLE1 SELECT '" & ¤ rsSource.Fields("Provider") & _ ¤ "', '" & rsSource.Fields("Procedure") & "', " & ¤ IIf(IsNull(rsSource.Fields("Hours")), "''", rsSource.Fields("Hours")) & _ ¤ ", '" & rsSource.Fields("Category") & _ ¤ "', '" & Replace(rsSource.Fields("Description"), "'", "''") & _ ¤ "', '" & rsSource.Fields("DateX") & _ ¤ "', '" & rsSource.Fields("Country") & _ ¤ "', " & rsSource.Fields("TripID") & " FROM DUAL" ¤ ¤ cmmnd.Execute Options:=adExecuteNoRecords ¤ rsSource.MoveNext ¤ Loop ¤ Fairly certain you have a date format issue. I always recommend using Command Parameters instead of inserting the values directly into the SQL statement. If the DateX column in the source is not a Date data type then it should be converted before being assigned to a Command Parameter. You can find some Command Parameter examples at the below link: http://support.microsoft.com/kb/176936 Paul ~~~~ Microsoft MVP (Visual Basic) Thanks for your suggestion Paul. I threw this together in a hurry and
although I've used command parameters a couple of times, it was quicker to create the SQL statement. Time permitting, I will redo this with command parameters and post back with results. Thanks again, Carl Paul Clement wrote: Show quoteHide quote > On Mon, 26 Jul 2010 13:05:25 -0700, Carl <nospam@all.thanks> wrote: > > > ¤ Do Until rsSource.EOF > ¤ cmmnd.CommandText = "INSERT INTO DATABASE1.TABLE1 SELECT '" & > ¤ rsSource.Fields("Provider") & _ > ¤ "', '" & rsSource.Fields("Procedure") & "', " & > ¤ IIf(IsNull(rsSource.Fields("Hours")), "''", rsSource.Fields("Hours")) & _ > ¤ ", '" & rsSource.Fields("Category") & _ > ¤ "', '" & Replace(rsSource.Fields("Description"), "'", "''") & _ > ¤ "', '" & rsSource.Fields("DateX") & _ > ¤ "', '" & rsSource.Fields("Country") & _ > ¤ "', " & rsSource.Fields("TripID") & " FROM DUAL" > ¤ > ¤ cmmnd.Execute Options:=adExecuteNoRecords > ¤ rsSource.MoveNext > ¤ Loop > ¤ > > Fairly certain you have a date format issue. I always recommend using Command Parameters instead of > inserting the values directly into the SQL statement. If the DateX column in the source is not a > Date data type then it should be converted before being assigned to a Command Parameter. > > You can find some Command Parameter examples at the below link: > > http://support.microsoft.com/kb/176936 > > > Paul > ~~~~ > Microsoft MVP (Visual Basic) If you are going to re-write, may I suggest using "Insert Into Oracel_DB
Select ... from Access" construct. You don't even need the loop and extranaous VB variable. One sql stmt does it all. Show quoteHide quote "Carl" <nospam@all.thanks> wrote in message news:uWS2HPaLLHA.6128@TK2MSFTNGP06.phx.gbl... > Thanks for your suggestion Paul. I threw this together in a hurry and > although I've used command parameters a couple of times, it was quicker to > create the SQL statement. Time permitting, I will redo this with command > parameters and post back with results. > Thanks again, > Carl > > Paul Clement wrote: >> On Mon, 26 Jul 2010 13:05:25 -0700, Carl <nospam@all.thanks> wrote: >> >> >> ¤ Do Until rsSource.EOF >> ¤ cmmnd.CommandText = "INSERT INTO DATABASE1.TABLE1 SELECT '" & ¤ >> rsSource.Fields("Provider") & _ >> ¤ "', '" & rsSource.Fields("Procedure") & "', " & ¤ >> IIf(IsNull(rsSource.Fields("Hours")), "''", rsSource.Fields("Hours")) & _ >> ¤ ", '" & rsSource.Fields("Category") & _ >> ¤ "', '" & Replace(rsSource.Fields("Description"), "'", "''") & >> _ >> ¤ "', '" & rsSource.Fields("DateX") & _ >> ¤ "', '" & rsSource.Fields("Country") & _ >> ¤ "', " & rsSource.Fields("TripID") & " FROM DUAL" >> ¤ ¤ cmmnd.Execute Options:=adExecuteNoRecords >> ¤ rsSource.MoveNext >> ¤ Loop >> ¤ Fairly certain you have a date format issue. I always recommend using >> Command Parameters instead of >> inserting the values directly into the SQL statement. If the DateX column >> in the source is not a >> Date data type then it should be converted before being assigned to a >> Command Parameter. >> >> You can find some Command Parameter examples at the below link: >> >> http://support.microsoft.com/kb/176936 >> >> >> Paul >> ~~~~ >> Microsoft MVP (Visual Basic) Hi Phil,
I was wondering about something along those lines...how would that work? Can an ADODB recordset be treated as a database table? For example, INSERT INTO DATABASE1.TABLE1 SELECT * FROM ... and then what? I don't think you can reference the recordset there, and the INSERT statement will not be aware of the MSAccess table, so... but I am willing to learn; I originally wanted to do it via a bulk insert but did not know how to. Thanks for your time! Carl Phil Hunt wrote: Show quoteHide quote > If you are going to re-write, may I suggest using "Insert Into Oracel_DB > Select ... from Access" construct. You don't even need the loop and > extranaous VB variable. One sql stmt does it all. > You raised a good point, it is a little tricky to cross ref 2 DB. Although
you can do it with linked table, it gets to be as complicated as what you have now. Forget I said that, unless someone can chime in Show quoteHide quote "Carl" <nospam@all.thanks> wrote in message news:ORvOYiaLLHA.2276@TK2MSFTNGP06.phx.gbl... > Hi Phil, > I was wondering about something along those lines...how would that work? > Can an ADODB recordset be treated as a database table? For example, > > INSERT INTO DATABASE1.TABLE1 SELECT * FROM ... > > and then what? I don't think you can reference the recordset there, and > the INSERT statement will not be aware of the MSAccess table, so... > > but I am willing to learn; I originally wanted to do it via a bulk insert > but did not know how to. > > Thanks for your time! > Carl > > Phil Hunt wrote: >> If you are going to re-write, may I suggest using "Insert Into Oracel_DB >> Select ... from Access" construct. You don't even need the loop and >> extranaous VB variable. One sql stmt does it all. >> On Tue, 27 Jul 2010 13:08:09 -0400, "Phil Hunt" <a**@aaa.com> wrote: ¤ You raised a good point, it is a little tricky to cross ref 2 DB. Although ¤ you can do it with linked table, it gets to be as complicated as what you ¤ have now. Forget I said that, unless someone can chime in ¤ ¤ Yes, can be done if the Oracle table is linked to the Access database: INSERT INTO LinkedOracleTable (Col1, Col2, Col3) SELECT Col1, Col2, Col3 FROM AccessTable If it's not linked then the (ODBC) Oracle connection string would need to be provided in the SQL statement. Paul ~~~~ Microsoft MVP (Visual Basic) Paul, I am curious what the SQL stmt looks like with connect striing in it .
Show quoteHide quote "Paul Clement" <UseAdddressAtEndofMess***@swspectrum.com> wrote in message news:s56u46dcmt1bo3g9t9u9laqjqbt23t37m6@4ax.com... > On Tue, 27 Jul 2010 13:08:09 -0400, "Phil Hunt" <a**@aaa.com> wrote: > > ¤ You raised a good point, it is a little tricky to cross ref 2 DB. > Although > ¤ you can do it with linked table, it gets to be as complicated as what > you > ¤ have now. Forget I said that, unless someone can chime in > ¤ > ¤ > > Yes, can be done if the Oracle table is linked to the Access database: > > INSERT INTO LinkedOracleTable (Col1, Col2, Col3) SELECT Col1, Col2, Col3 > FROM AccessTable > > If it's not linked then the (ODBC) Oracle connection string would need to > be provided in the SQL > statement. > > > Paul > ~~~~ > Microsoft MVP (Visual Basic) On Tue, 27 Jul 2010 14:24:08 -0400, "Phil Hunt" <a**@aaa.com> wrote: ¤ Paul, I am curious what the SQL stmt looks like with connect striing in it .¤ I'll see if I can come up with something functional. Paul ~~~~ Microsoft MVP (Visual Basic) "Paul Clement" <UseAdddressAtEndofMess***@swspectrum.com> wrote in message Didn't someone post a site that dealt with connection strings? Damn, I news:6ldu46tllij1ftuusdnimulmsiopk0miqp@4ax.com... : On Tue, 27 Jul 2010 14:24:08 -0400, "Phil Hunt" <a**@aaa.com> wrote: : : ¤ Paul, I am curious what the SQL stmt looks like with connect striing in it . : ¤ : : I'll see if I can come up with something functional. should have bookedmarked it.
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On Tue, 27 Jul 2010 18:55:43 -0400, "Kevin Provance" <k@p.c> wrote: no bookmark needed - easy to remember> >"Paul Clement" <UseAdddressAtEndofMess***@swspectrum.com> wrote in message >news:6ldu46tllij1ftuusdnimulmsiopk0miqp@4ax.com... >: On Tue, 27 Jul 2010 14:24:08 -0400, "Phil Hunt" <a**@aaa.com> wrote: >: >: ¤ Paul, I am curious what the SQL stmt looks like with connect striing in >it . >: ¤ >: >: I'll see if I can come up with something functional. > >Didn't someone post a site that dealt with connection strings? Damn, I >should have bookedmarked it. www.connectionstrings.com -ralph I know connection string within a connect stmt. Paul was talking about an
SQL Insert statement that has an connection string. 2 different thing. I know the syntax when dealing with 2 Access db, but never before between Access and Oracle. Show quoteHide quote "Kevin Provance" <k@p.c> wrote in message news:i2no5b$1js$1@news.eternal-september.org... > > "Paul Clement" <UseAdddressAtEndofMess***@swspectrum.com> wrote in message > news:6ldu46tllij1ftuusdnimulmsiopk0miqp@4ax.com... > : On Tue, 27 Jul 2010 14:24:08 -0400, "Phil Hunt" <a**@aaa.com> wrote: > : > : ¤ Paul, I am curious what the SQL stmt looks like with connect striing > in > it . > : ¤ > : > : I'll see if I can come up with something functional. > > Didn't someone post a site that dealt with connection strings? Damn, I > should have bookedmarked it. > On Tue, 27 Jul 2010 14:24:08 -0400, "Phil Hunt" <a**@aaa.com> wrote: ¤ Paul, I am curious what the SQL stmt looks like with connect striing in it .¤ ¤ With a connection to the Access database this worked for me: INSERT INTO [ODBC;Driver={Microsoft ODBC For Oracle};Server=ServerName;Uid=userID;Pwd=password;].[ORDERS] (ORDERID, CUSTOMERID, EMPLOYEEID) SELECT ORDERID, CUSTOMERID, EMPLOYEEID FROM ORDERS Paul ~~~~ Microsoft MVP (Visual Basic) Very cool Paul. I didn't know you could do that. Thanks for the tip!
Paul Clement wrote: Show quoteHide quote > On Tue, 27 Jul 2010 14:24:08 -0400, "Phil Hunt" <a**@aaa.com> wrote: > > ¤ Paul, I am curious what the SQL stmt looks like with connect striing in it . > ¤ > ¤ > > With a connection to the Access database this worked for me: > > INSERT INTO [ODBC;Driver={Microsoft ODBC For > Oracle};Server=ServerName;Uid=userID;Pwd=password;].[ORDERS] (ORDERID, CUSTOMERID, EMPLOYEEID) > SELECT ORDERID, CUSTOMERID, EMPLOYEEID FROM ORDERS > > > Paul > ~~~~ > Microsoft MVP (Visual Basic) Thanks Paul.
Show quoteHide quote "Paul Clement" <UseAdddressAtEndofMess***@swspectrum.com> wrote in message news:vlt0565gc0457injhfsd41j5scnij15his@4ax.com... > On Tue, 27 Jul 2010 14:24:08 -0400, "Phil Hunt" <a**@aaa.com> wrote: > > ¤ Paul, I am curious what the SQL stmt looks like with connect striing in > it . > ¤ > ¤ > > With a connection to the Access database this worked for me: > > INSERT INTO [ODBC;Driver={Microsoft ODBC For > Oracle};Server=ServerName;Uid=userID;Pwd=password;].[ORDERS] (ORDERID, > CUSTOMERID, EMPLOYEEID) > SELECT ORDERID, CUSTOMERID, EMPLOYEEID FROM ORDERS > > > Paul > ~~~~ > Microsoft MVP (Visual Basic) Here's the latest...
I compacted and repaired the MSAccess database after backing it up and also checked the 'Compact on Close' option under Tools>Options>General. It's a fairly small database so the compact runs in under 5 seconds. My VB routine ran to completion this morning, so will continue to monitor it, but thanks for everyone's suggestions and for the links provided. While it's working I will incorporate your suggestions so that if and when it breaks again it may be easier to track down the underlying cause. Again, your help is greatly appreciated, as always. Carl
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