How to find all child tables

Question

Hi,
I have a set of tables that are in multi level hierarchy.
Here is the example.
Table1 (id is primary key)
Table2 (id,loc is primary key. and id is refering to table1.id) Table3(id,name is primary key and id is refering to table1)
Table 4(emp_id,group,name,loc_grp is PK. emp_id and loc_grp is refering to table2) Table5(std_id,name,dpt,sal is pk and std_id,name is refering to table3)
Now, I want to get all tables and their columns that are refering to Table1.id. In this example, it should return table2, table3,table4 and table5 along with their columns.
some thing like this.
Table_name Column_name
Table2 id
Table3 id
Table4 emp_id
Table5 std_id
Please suggest how to get this.

Answer 1

HI ,please try this one .
SELECT a.table_name, c.column_name, b.table_name AS child_table,
       d.column_name, b.r_constraint_name
  FROM user_constraints a,
       user_constraints b,
       user_ind_columns c,
       user_cons_columns d
WHERE a.constraint_type = 'P'
   AND a.constraint_name = b.r_constraint_name
   AND b.constraint_type = 'R'
   AND a.table_name = c.table_name
   AND a.constraint_name = c.index_name
   AND b.constraint_name = d.constraint_name
   AND a.table_name = '<TABLE_NAME>' ;thanks,
P Prakash