RE: Spring batchUpdate vs. update?

Try this:

MERGE INTO file R
USING (values(:field1,:field2,:field3,:field4,:field5,:field6,:field7)) AS N
(field1, field2, field3, field4, field5, field6, field7) ON
(r.field1,r.field5) = (n.field1,n.field5)
WHEN MATCHED THEN
UPDATE SET (field2,field3,field4,field6,field7) =
(:field2,:field3,:field4,:field6,:field7)
WHEN NOT MATCHED THEN
INSERT (field1,field2,field3,field4, field5,field6,field7)
values(:field1,:field2,:field3,:field4,:field5, :field6,:field7)
OUTPUT COUNT(*)


De: David Gibbs via JAVA400-L<mailto:java400-l@xxxxxxxxxxxxxxxxxx>
Enviado: lunes, 26 de junio de 2023 6:36 p. m.
Para: java400-l@xxxxxxxxxxxxxxxxxx<mailto:java400-l@xxxxxxxxxxxxxxxxxx>
CC: David Gibbs<mailto:david@xxxxxxxxxxxx>
Asunto: Re: Spring batchUpdate vs. update?

On Jun 26, 2023, at 2:21 PM, Augusto Sepulveda Bilbao <augustosepulvedabilbao@xxxxxxxxxxx> wrote:

Here are a few potential causes fo this issue:
1. Incorrect SQL statement: Verify that your SQL statement is correct and compatible with the database you are using. Ensure that the table and column names are accurate and that the statement performs the intended update or insert operations.

Well, no … since this is an IBM i oriented forum, the target DB can generally be assumed to be DB2 for i (occasionally it isn’t, but in this case it is).

2. Invalid parameter values: Check that the parameter values you are passing in the SqlParameterSource objects are valid and appropriate for the corresponding columns in the table. Make sure the data types match and there are no null or unexpected values.

The merge statement runs fine, it’s just the array of row counts updated is incorrect.

3. Constraint violations: If your SQL statement includes constraints (such as unique key constraints), it's possible that some of the rows in your batch violate these constraints. Review your data and ensure that you are not attempting to insert duplicate or conflicting values.

Same as #2.

4. Database connectivity issues: It's worth verifying that you have a stable connection to the database and that there are no network or access-related problems that could prevent the batch update from executing correctly.

Same as #2.

david
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