How can I get the SQL of a PreparedStatement?

Question

I have a general Java method with the following method signature:

private static ResultSet runSQLResultSet(String sql, Object... queryParams)

It opens a connection, builds a PreparedStatement using the sql statement and the parameters in the queryParams variable length array, runs it, caches the ResultSet (in a CachedRowSetImpl), closes the connection, and returns the cached result set.

I have exception handling in the method that logs errors. I log the sql statement as part of the log since it's very helpful for debugging. My problem is that logging the String variable sql logs the template statement with ?'s instead of actual values. I want to log the actual statement that was executed (or tried to execute).

So... Is there any way to get the actual SQL statement that will be run by a PreparedStatement? (Without building it myself. If I can't find a way to access the PreparedStatement's SQL, I'll probably end up building it myself in my catches.)

Answer 1

Simply function:

public static String getSQL (Statement stmt){
    String tempSQL = stmt.toString();

    //please cut everything before sql from statement
    //javadb...: 
    int i1 = tempSQL.indexOf(":")+2;
    tempSQL = tempSQL.substring(i1);

    return tempSQL;
}

It's fine aswell for preparedStatement.