2026-03-12 20:23:15

vdh/list_child_tab.sql

@@ -0,0 +1,71 @@
+set linesize 150
+set verify off
+
+column c_constraint_name format a20
+column c_column_name format a25
+column c_owner format a15
+column p_constraint_name format a20
+column c_table_name format a20
+column p_column_name format a25
+
+break on c_owner on c_table_name skip 1 on c_constraint_name on p_constraint_name
+
+select
+  con.owner c_owner, c_col.table_name c_table_name, con.constraint_name c_constraint_name, 
+  con.r_constraint_name p_constraint_name, c_col.column_name c_column_name, 
+  p_col.column_name p_column_name
+from
+  dba_constraints   con,
+  dba_cons_columns  c_col,
+  dba_cons_columns  p_col
+where
+  con.owner = c_col.owner
+  and con.constraint_name = c_col.constraint_name
+  and con.r_owner = p_col.owner
+  and con.r_constraint_name = p_col.constraint_name
+  and c_col.position = p_col.position
+  and con.constraint_type = 'R'
+  and p_col.owner = '&PARENT_TABLE_OWNER' 
+  and p_col.table_name = '&PARENT_TABLE_NAME'
+order by
+  c_owner, c_table_name, c_constraint_name, c_col.position, 
+  p_constraint_name, p_col.position
+;
+
+-- volgende werkt ook en is misschien beter te begrijpen, maar bovenstaand lijkt iets performanter
+--with
+--  ref_rel as
+--    ( select
+--        c_con.owner c_owner, c_con.constraint_name c_constraint_name,
+--        p_con.owner p_owner, p_con.constraint_name p_constraint_name, 
+--        c_con.table_name c_table_name
+--      from
+--        dba_constraints   c_con,
+--        dba_constraints   p_con
+--     where
+--        c_con.r_owner = p_con.owner
+--        and c_con.r_constraint_name = p_con.constraint_name
+--        and c_con.constraint_type = 'R'
+--        and p_con.owner = '&PARENT_TABLE_OWNER'
+--        and p_con.table_name = '&PARENT_TABLE_NAME'
+--    )
+--select
+--  ref_rel.c_owner, ref_rel.c_table_name, ref_rel.c_constraint_name, 
+--  ref_rel.p_constraint_name, c_con_col.column_name c_column_name, 
+--  p_con_col.column_name p_column_name
+--from
+--  ref_rel,
+--  dba_cons_columns  c_con_col,
+--  dba_cons_columns  p_con_col
+--where
+--  ref_rel.c_owner = c_con_col.owner
+--  and ref_rel.c_constraint_name = c_con_col.constraint_name
+--  and ref_rel.p_owner = p_con_col.owner
+--  and ref_rel.p_constraint_name = p_con_col.constraint_name
+--  and c_con_col.position = p_con_col.position
+--order by
+--  c_owner, c_table_name, c_constraint_name, c_con_col.position, 
+--  p_constraint_name, p_con_col.position
+--;
+
+clear breaks