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Product Specifications

DB2 LUW is basically compatible with DB2 for z/OS, with some exceptions in DML syntax and functions supported and certain DDL statements that are hardware/operating system specific. Host Compatibility Option tries to address some of the main areas of incompatibility where possible by converting DB2 for z/OS SQL statements to supported DB2 LUW syntax.

Additional compatibility is possible when using DB2 for z/OS database servers via the DB2 Connect product.

For more information on the differences in syntax supported by the various versions of DB2, see IBM's SQL Reference for Cross-Platform Development.

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