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6. Coding tips and troubleshooting .................................................. 85Introduction .............................................................................................. 85<strong>JDBC</strong> and multi-threading .............................................................................. 86Performance optimization ............................................................................. 87Disabling auto-commit mode ..................................................................... 87Using the array interface ......................................................................... 88Automatic custom mapping ....................................................................... 89Connection pooling ................................................................................. 89Trapping exceptions ............................................................................... 90Schema locks ........................................................................................ 91Logging <strong>JDBC</strong> calls ...................................................................................... 92A. <strong>JDBC</strong> Samples ......................................................................... 93Prerequisites ............................................................................................. 93Accessing <strong>JDBC</strong> samples ................................................................................ 94Sample programs ........................................................................................ 95Index ....................................................................................... 96<strong>JDBC</strong> <strong>Developer's</strong> <strong>Guide</strong>, P25-9504-03 6Contents