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Editorial Team
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Asked: 2026-05-14T04:36:58+00:00

We have a setup where we are using an embedded HSQLDB for backing Hibernate/JPA

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We have a setup where we are using an embedded HSQLDB for backing Hibernate/JPA unit tests in java, and we are using the in-memory database mode since we simply want the database thrown away after the test run. My problem is that one of the tests is failing due to a constraint violation and HSQLDB lists the column as SYS_CT_286, and the query that appears in the log is the prepared statement where I cant see what the actual parameter values are (they are replaced by ‘?’). My questions are:

1- Is there a way in which I can see the actual SQL being executed? (like the mysql query log for example?).

2- What exactly is SYS_CT_286? it is not one of my columns, is it a generated column? is there something obvious that may be wrong with it?

Thanks.

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1 Answer

  1. Editorial Team

    Is there a way in which I can see the actual SQL being executed?

    I’m not sure HSQLDB allows to log the SQL statements (like select) being executed but you can use a proxy JDBC driver like P6Spy for this (already mentioned in this answer).

    What exactly is SYS_CT_286?

    This is a constraint (and I would bet on a unique constraint).

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