# SYSCONGLOMERATES system table

Describes the conglomerates within the current database. A conglomerate is a unit of storage and is either a table or an index.

Column Name | Type | Length | Nullable | Contents
--- | --- | --- | --- | ---
SCHEMAID | CHAR | 36 | false | schema id for the conglomerate
TABLEID | CHAR | 36 | false | identifier for table (join with SYSTABLES.TABLEID)
CONGLOMERATENUMBER | BIGINT | 8 | false | conglomerate id for the conglomerate (heap or index)
CONGLOMERATENAME | VARCHAR | 128 | true | index name, if conglomerate is an index, otherwise the table ID
ISINDEX | BOOLEAN | 1 | false | whether or not conglomerate is an index
DESCRIPTOR | org.apache.derby. catalog.IndexDescriptor: This class is not part of the public API. |  | true | system type describing the index
ISCONSTRAINT | BOOLEAN | 1 | true | whether or not conglomerate is a system-generated index enforcing a constraint
CONGLOMERATEID | CHAR | 36 | false | unique identifier for the conglomerate

Parent topic: Derby system tables