primarykeys - Get primary key information for database table or schema

Syntax

Description

k = primarykeys(dbmeta, 'cata', 'sch') returns primary key information for all tables in the schema sch, of the catalog cata, for the database whose database metadata object is dbmeta.

k = primarykeys(dbmeta, 'cata', 'sch', 'tab') returns primary key information for the table tab, in the schema sch, of the catalog cata, for the database whose database metadata object is dbmeta.

Examples

Get primary key information for the DEPT table:

k = primarykeys(dbmeta,'orcl','SCOTT','DEPT')
k = 
   'orcl'   'SCOTT'   'DEPT'   'DEPTNO'   '1'   'PK_DEPT'

The results show the primary key information as described in the following table.

Column	Description	Value
1	Catalog	orcl
2	Schema	SCOTT
3	Table	DEPT
4	Column name of primary key	DEPTNO
5	Sequence number within primary key	1
6	Primary key name	PK_DEPT

See Also

crossreference | dmd | exportedkeys | get | importedkeys

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