Oracle foreign key reference table

Foreign key on table oracle

SELECT c.OWNER, a.TABLE_NAME, a.COLUMN_NAME, a.CONSTRAINT_NAME, 
       c.R_OWNER AS REF_OWNER, cpk.TABLE_NAME AS REF_TABLE, 
       cpk.CONSTRAINT_NAME AS REF_PK
FROM ALL_CONS_COLUMNS a 
JOIN ALL_CONSTRAINTS c ON a.OWNER = c.OWNER
    AND a.CONSTRAINT_NAME = c.CONSTRAINT_NAME
 JOIN ALL_CONSTRAINTS cpk ON c.R_OWNER = cpk.OWNER
    AND c.R_CONSTRAINT_NAME = cpk.CONSTRAINT_NAME
WHERE c.CONSTRAINT_TYPE = 'R' AND c.TABLE_NAME= 'table_name';

Oracle foreign key reference table

SELECT cons.OWNER 			AS CHILD_OWNER,
       cons.TABLE_NAME 		AS CHILD_TABLE,
       cons.CONSTRAINT_NAME AS CONSTAINT_NAME,
       cons.CONSTRAINT_TYPE AS CONSTRAINT_TYPE,
       col.OWNER 			AS PARENT_OWNER,
       col.TABLE_NAME 		AS PARENT_TABLE,
       col.COLUMN_NAME 		AS COLUMN_NAME
FROM DBA_CONS_COLUMNS col, DBA_CONSTRAINTS cons
WHERE cons.R_OWNER = col.OWNER
  AND cons.R_CONSTRAINT_NAME = col.CONSTRAINT_NAME
  AND cons.TABLE_NAME = 'table_name';

Source: dba-oracle.com

Similar codes

9 votes210 views6 answers
Check constraint in sql
SQL
0 vote187 views1 answer
Postgres jsonb array push new element
SQL
4 votes182 views2 answers
Truncate oracle
SQL
1 vote226 views1 answer
Ubuntu access database from terminal
SQL
0 vote229 views1 answer
Create table like sql
SQL
0 vote196 views1 answer
Sql server select ignore dupplicates
SQL
22 votes265 views4 answers
Mysql format date
SQL
1 vote200 views2 answers
Check if word is in column sql
SQL
0 vote224 views2 answers
Postgres isnull
SQL
0 vote266 views1 answer
Dynamic where clause in sql server stored procedure
SQL