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RDBPROD: Why is Maximum Column Name Length 29 in SQL/Services and ODBC? (Doc ID 64838.1)

Last updated on APRIL 14, 2022

Applies to:

Oracle Rdb Server on OpenVMS - Version 5.0 and later
Oracle SQL/Services for Rdb on OpenVMS - Version 6.0 and later
HP OpenVMS Itanium
HP OpenVMS Alpha


ODBC and SQL/Services will truncate column names over 29 characters in length to 29 characters.  For example a column named


will be truncated to


where xx is the NULL byte terminator.

Rdb allows column names up to 31 characters in length.

Why is the column name truncated?


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