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DEFAULT predicate 

By specifying a DEFAULT predicate, you can check whether a column contains the default value defined for this column.

Syntax

<default_predicate> ::= <column_spec> <comp_op> DEFAULT

column_spec, comp_op

Explanation

A DEFAULT specification must be made for the specified column. This can be done in the following SQL statements:

If the column contains the NULL value, <column_spec> <comp_op> DEFAULT is undefined.

The rules for comparing values or value lists, as defined under comparison predicate, apply here.

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