which approach is do better performance do bulk insert by using insert from select or Cursor for loop ? for example : [code] DECLARE CURSOR Test_C IS SELECT * FROM test_table1; BEGIN FOR Test_C_REC IN Test_C LOOP INSERT INTO test_table2(col1, col2, col3) VALUES (Test_C.col1, Test_C.col2, Test_C.col3); END LOOP; END; [/code] or a simple select, like: [code] INSERT INTO ...