Query to find out empty records

Question

Hi experts,
I want to find out those tables in my databases which does not have any records or data. I have many tables in my databases which are totally empty. Please help me to build a query . Which database view i should access to find out the tables with empty records? Please help.

Answer 1

Hello,
Just pass the user list you want to count and not admin users or other default users.
SELECT owner, table_name, num_rows
      FROM dba_tables
      WHERE owner IN ('MYUSER','OTHERUSER');or this
DECLARE
   CURSOR mycur
   IS
      SELECT owner, table_name, num_rows
      FROM dba_tables
      WHERE owner NOT IN ('SYS', 'SYSTEM', 'SYSMAN', 'OUTLN')
            AND iot_name IS NULL;
   v_sql     VARCHAR2 (100);
   v_count   NUMBER := 0;
BEGIN
   FOR cur IN mycur
   LOOP
      v_sql     := NULL;
      v_count   := 0;
      v_sql     :=
         'select count (*) from ' || cur.owner || '.' || cur.table_name;
      EXECUTE IMMEDIATE v_sql INTO v_count;
      IF (v_count = 0)
      THEN
         DBMS_OUTPUT.put_line(   'Table name = '
                              || cur.table_name
                              || ' rows '
                              || v_count);
      END IF;
   END LOOP;
END;Regards