| 摘要 |
PURPOSE:To reduce frequency generated by an undesired waiting state, by executing a registration onto a control table as necessary by a user, and inhibiting an access from other user against the registered access unit. CONSTITUTION:When a user checks one record in some access unit, and thereafter, executes write to a record in other access unit, in case when he desires an exclusive control to the latter record, an entry regarding the latter record is added onto a control table 3 by an inserting command. When the entry concerned is registered, a data base control system 2 operates to a record corresponding to the registered entry as if the access is executed in a locked state, and inhibits updating from other user, etc. |
