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Editorial Team
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Asked: 2026-05-22T20:56:11+00:00

I have a table, say example1 and I’m using a jdbc statement to delete

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I have a table, say example1 and I’m using a jdbc statement to delete one of its rows. I have tried various methods, from delete from example1 where id = 1 to statement.addbatch(sql) but it does not delete the row. If I execute the same sql statement in Toad for Mysql it’s able to delete the row just fine.

Weird thing is that using jdbc I am able to delete rows from other tables just fine; it’s just this one particular table giving me unexpected results.

There is nothing special about this table. It has a primary key and no constraints/foreign key relationships.

Also, this delete is a part of a transaction so auto-commit is set to false and once all records get updated/inserted/deleted then the commit is done. This does not seem to have any problem with any other table and all the updates/deletes/inserts are done just fine.

Permission-wise this table has same permission for the db user that any other table in the db.

Any ideas or pointers will be greatly appreciated!

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1 Answer

  1. Editorial Team

    Turning on general logging on the database or profiling in the JDBC driver would show you what’s actually going to the database:

    http://dev.mysql.com/doc/refman/5.0/en/connector-j-reference-configuration-properties.html

    Enable profiling of queries for Connector/J by adding this to your connection string: profileSQL=true

    General Logging documentation:
    http://dev.mysql.com/doc/refman/5.1/en/query-log.html

    There’s also mk-query-digest for sniffing your network traffic and analyzing the results:
    http://www.maatkit.org/doc/mk-query-digest.html

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