Data Syncronising with Procedure Between two Database

CREATE OR REPLACE PROCEDURE P_DATA_SYNC
  AS
  CURSOR ins_table
   IS
      SELECT    'INSERT INTO '
             || t.table_name
             || ' (SELECT * FROM '
             || t.table_name
             || ' WHERE SYNC_FG = 0)' sqlstmt
        FROM user_tables t;
BEGIN
   FOR c1 IN ins_table
   LOOP
      EXECUTE IMMEDIATE  (c1.sqlstmt);
   END LOOP;
END;