        -----  Transaction: Start, Savepoint, Commit or Rollback   -----

   ȥ󥶥 "start tranzaction" ޥɤˤ곫Ϥޤȥ
 ϡǡ١ФϱʵפʤΤǤϤʤѲʵפΤ
 Τˤ뤳Ȥ⡢Хå뤳Ȥˤäƥȥ󥶥󳫻ϻΥǡ١
 ξ֤ˤ뤳ȤǤޤ

 ιʸ

     |start| |transaction|;
     |run  | |work       |

   ˤȥ󥶥󤬻Ϥޤޤ

 ιʸ

     savepoint SAVEPOINT;

   ˤȥ󥶥˥֥ݥȤꤵ. SAVEPOINT ϱʸ
 ǻϤޤʸǤΥޥɤϥȥ󥶥ǤѤǤޤ

   "commit transaction" ޥɤϥȥ󥶥Υǡ١Ѳʵ
 ʤΤˤȥ󥶥λޤ
   Υޥɤϥȥ󥶥ǤΤͭȤʤޤ

 ιʸ

     commit  |transaction|;
             |work       |

   "rollback transaction" ޥɤϥȥ󥶥Υǡ١Фƹ
 줿ޥɤθ̤äǡ١ȥ󥶥
 Ϥޤξ֤ᤷޤ
   Υޥɤϥȥ󥶥ǤΤͭǤȤʤޤ

 ιʸ

     |rollback| |transaction| [to SAVEPOINT];
     |cancel  | |work       |

   SAVEPOINT ꤵȡȥ󥶥ϤΥ֥ݥȤޤǥХ
 ޤꤵʤСȥ󥶥ΤХåޤ

   ƥѿ MSTRANSCOMMENT, MSTRANSTABLELOCK, MSTRANSWARMPROTECT 򻲾Ȥ
 
