# SYSCHECKS

Describes the check constraints within the current database.

Column Name | Type | Length | Nullability | Contents
--- | --- | --- | --- | ---
CONSTRAINTID | CHAR | 36 | false | unique identifier for the constraint
CHECKDEFINITION | LONG VARCHAR |  | false | text of check constraint definition
REFERENCEDCOLUMNS | org.apache.derby.catalog. ReferencedColumns: This class is not part of the public API. |  | false | description of the columns referenced by the check constraint

Parent topic: Derby System Tables
Related reference
SYSALIASES
SYSCOLPERMS
SYSCOLUMNS
SYSCONGLOMERATES
SYSCONSTRAINTS
SYSDEPENDS
SYSFILES
SYSFOREIGNKEYS
SYSKEYS
SYSROUTINEPERMS
SYSSCHEMAS
SYSSTATISTICS
SYSSTATEMENTS
SYSTABLEPERMS
SYSTABLES
SYSTRIGGERS
SYSVIEWS