| 摘要 |
<p>A process 1 for updating of records and files 17 in a multi-user computer database system 17 maintains integrity of the database system. A workstation refers to each element of an array in turn to determine updating requirements 8, 9 of pieces of data which have been inputted and validated, 3. According to the information given in each array element, an attempt is made to lock the particular record or file a preset number of times as determined by a counter 14. Unless all records or files may be updated in the one batch process, previously locked files or records are unlocked, 15, and a message is displayed, 16, to a user to indicate that the updating has failed and must be re-initiated. <IMAGE></p> |
