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DB2 9 for Developers by Philip K. Gunning

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Appendix B. SQL and XQuery Limits

This appendix on DB2 limits contains a quick reference for information often sought after by DBAs and application developers alike on architectural limits in DB2. The appendix provides limit definitions in the following areas:

  • Identifier length limits

  • Numeric limits

  • String limits

  • XML limits

  • Date/time limits

  • Database manager limits

  • Database manager page-size–specific limits

By developing applications within these limits, you will enable applications to be easily portable across the DB2 family.

The following limit information is taken from Appendix A of IBM’s DB2 9 SQL Reference, Volume 1, and is used with permission.

Identifier Length Limits

Description

Limit (in bytes)

Authorization name (can be single-byte characters only) ...

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