Question

Bulk insert problem with TAdoQuery

Asked by: LeneJosiassem

I have a small application in Delphi 7. I am doing a bulk insert in Sql Server2005.  I have more than 2000 insert statements in a text file.
I load this text file in the TAdoQuery component and Execute TAdoQuery.
But it seems that only the first 456 records are getting inserted.
Please find the code below and the text file attached.

qryExecute.ConnectionString := 'Provider=MSDASQL.1;Persist Security Info=False;Data Source=Northwind;';
  qryExecute.ParamCheck := False;
  qryExecute.Sql.LoadFromFile('C:\ITBizz\doc\Latest\test mange records.TXT');
  qryExecute.ExecSQL;

                                  
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Asked On
2009-09-08 at 06:17:38ID24714687
Topics

Delphi Database

,

Delphi Programming

Participating Experts
2
Points
250
Comments
6

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Answers

 

by: Geert_GruwezPosted on 2009-09-08 at 06:57:33ID: 25281886

there is a limit on sql statements of 8000 bytes

you'll have to divide the sql into pieces

 

by: Geert_GruwezPosted on 2009-09-08 at 06:58:05ID: 25281892

it would be best to add the sql server 2005 zone to your question for more sql expert advise

 

by: 8080_DiverPosted on 2009-09-08 at 07:11:49ID: 25282028

Having a whole series of INSERT statements is a common "solution" used by developers who are not familiar with databases and/or are not comfortable with set-based thinking rather than process oriented thinking (i.e. SQl vs Programming Languages ;-).  It would be far better if you were to format the data as a CSV file and use SSIS to load the data into the SS2005 table.  

If nothing else, create a unit that reads teh CSV file and fills in the parameters for a parameterized query and then executes the query.  However, that will be slower than your idea of executing the massive SQL script (although, probably more successful).  The fastest and best solution is the use of SSIS.

 

by: Geert_GruwezPosted on 2009-09-08 at 07:26:27ID: 25282176

rewriting and getting possible errors ?

just run the script from the command line :
http://www.mssqltips.com/tip.asp?tip=1543

 

by: LeneJosiassemPosted on 2009-09-30 at 00:20:15ID: 31626042

I solved my insert issue by creating a storedprocedure and adding the insert statement inside the storeprocedure and then executing the storeprocedure.All this is done at runtime.

 

by: Geert_GruwezPosted on 2009-09-30 at 00:25:29ID: 25456236

>>I solved my insert issue by creating a storedprocedure and adding the insert statement inside the storeprocedure and then executing the storeprocedure.All this is done at runtime.

cool, should indeed work faster
don't forget to drop the procedure when finished

the idea is indeed like uploading the script to the server and then letting the server execute it local
 

20120131-EE-VQP-002

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