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How Can I Retrieve the Actual SQL Executed by a PreparedStatement in Java?

Patricia Arquette
Release: 2024-11-11 14:50:03
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How Can I Retrieve the Actual SQL Executed by a PreparedStatement in Java?

Retrieving the Actual SQL Executed by a PreparedStatement

In Java's PreparedStatement, the SQL template and query parameters are separated during statement creation. This separation hampers debugging efforts, as logging the SQL template doesn't reflect the actual values used.

Is there a way to retrieve the actual SQL executed by a PreparedStatement?

Unfortunately, there's no direct way to retrieve the actual SQL. Prepared statements don't store the final SQL query after binding parameters.

Alternative Solutions:

  • Output the code and data: Log the SQL template and the list of data used in parameter binding. This provides a clear understanding of the intended SQL and the values used.
  • Manually build the SQL: Create a string that combines the SQL template and the bound values. While this is error-prone, it can reveal the exact SQL executed.

Why is this information not accessible?

Once a PreparedStatement is prepared, the database server optimizes the query execution plan based on the data types and other factors. Re-creating the original SQL from a bound statement would require re-analyzing the statement, which can be inefficient.

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