(1) In DB2 for z/OS, a state into which a table can be put where only limited activity is allowed on the table and constraints are not checked when the table is updated.
(2) A state that occurs when data for a constraint cannot be verified as valid. A constraint could be either a referential constraint or a cheque constraint.
(3) A state of a table space or partition that prevents its use by some utilities and by some SQL statements because of rows that violate referential constraints, cheque constraints, or both.