15.00 - ALTER PROCEDURE (SQL Form) Rules - Teradata Database

Teradata Database SQL Data Definition Language Detailed Topics

Teradata Database
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Programming Reference
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English (United States)


  • If a procedure is recompiled by an ALTER PROCEDURE request with NO SPL option, the source text of the procedure is deleted from the system and the procedure cannot be recompiled again.
  • You can alter a procedure in the same session mode in which the procedure was originally created. Procedures created in ANSI session mode cannot be recompiled in Teradata session mode and vice versa.
  • An ALTER PROCEDURE request cannot be specified inside a procedure body.
  • If you do not specify any compile-time options with an ALTER PROCEDURE request, the options with which the procedure was previously created, replaced, or recompiled apply. If some compile-time options are specified with an ALTER PROCEDURE request, the unspecified options default to the existing options of the procedure.
  • You must specify COMMIT after an ALTER PROCEDURE request is executed in ANSI mode transactions, as true for all DDL statements.
  • In Teradata session mode, ALTER PROCEDURE must be the last request in a transaction.
  • All the statements other than DML, DDL, and DCL statements within an SQL procedure are validated syntactically and semantically during the execution of an ALTER PROCEDURE request.
  • For DML, DDL, and DCL statements within the procedure body, the validation includes syntactic validation and name resolution but does not include the following.

  • Access privilege checks
  • Data type compatibility
  • If the execution of an ALTER PROCEDURE request fails, the existing SQL create text for the procedure is retained.
  • Errors or warnings generated during the recompilation of a procedure are reported as part of the SUCCESS or OK response. The activity count in the parcel is set to the total number of errors and warnings.