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Oracle constraints

Update foreign keys with new value in Oracle

Suppose you have a table and you want to change one of this table primary id. you can use the following scrpit.primary ID here is "PK_S"

 FOR i IN (SELECT a.table_name, c.column_name
 FROM user_constraints a, user_cons_columns c
 AND c.constraint_name = a.constraint_name) LOOP

 EXECUTE IMMEDIATE 'update ' || i.table_name || ' set ' || i.column_name ||
 '=to_number(''1000'' || ' || i.column_name || ') ';



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