COLUMN_EXISTS

Check for a dynamic column. This function returns 1 if a specified column exists within a dynamic column blob, and 0 otherwise.

Syntax

COLUMN_EXISTS(dyncol_blob, column_nr)
COLUMN_EXISTS(dyncol_blob, column_name)

Description

Checks if a column with name column_name exists in dyncol_blob. If yes, return 1, otherwise return 0. See dynamic columns for more information.

_{This page is licensed: CC BY-SA / Gnu FDL}