Syntax of TEXTVALID Function :
TEXTVALID ('table.column', text_ptr)
table is a name of table to be specified.
column is a name of column of specified table.
text_ptr is a text pointer to be checked.
Return type of TEXTVALID is an integer.
Examples of TEXTVALID Function :
Example 1 : Use of TEXTVALID function in select clause
SELECT TEXTVALID()