Oracle Foreign Key Columns Report
This script displays foreign key (FK) column information for a specified schema and table. It joins DBA_CONSTRAINTS and DBA_CONS_COLUMNS to show foreign key names, referencing columns, referenced tables and columns, and column positions, helping analyze relational dependencies between tables.
oraclesqlreporting-analyticsv1.0.0
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-- -----------------------------------------------------------------------------------
-- File Name : http://www.oracle-base.com/dba/monitoring/fk_columns.sql
-- Author : DR Timothy S Hall
-- Description : Displays information on all FKs for the specified schema and table.
-- Requirements : Access to the V$ views.
-- Call Syntax : @fk_columns (schema-name or all) (table-name or all)
-- Last Modified: 22/09/2005
-- -----------------------------------------------------------------------------------
SET VERIFY OFF
SET LINESIZE 1000
COLUMN column_name FORMAT A30
COLUMN r_column_name FORMAT A30
SELECT c.constraint_name,
cc.table_name,
cc.column_name,
rcc.table_name AS r_table_name,
rcc.column_name AS r_column_name,
cc.position
FROM dba_constraints c
JOIN dba_cons_columns cc ON c.owner = cc.owner AND c.constraint_name = cc.constraint_name
JOIN dba_cons_columns rcc ON c.owner = rcc.owner AND c.r_constraint_name = rcc.constraint_name AND cc.position = rcc.position
WHERE c.owner = DECODE(UPPER('&1'), 'ALL', c.owner, UPPER('&1'))
AND c.table_name = DECODE(UPPER('&2'), 'ALL', c.table_name, UPPER('&2'))
ORDER BY c.constraint_name, cc.table_name, cc.position;