1. An association between a job and a resource.; 作業(yè)和資源之間的一種聯(lián)結(jié)。 2. InVAX COBOL, the facilities that allow concurrent use of a database or a sequential, relative, or indexed file without corrupting their records. | VAX COBOL中允許并行使用數(shù)據(jù)庫或順序的、相對(duì)的、索引的文件,而不破壞它們的記錄的種 種設(shè)施。 3. The VAX DBMS facilities that allow concurrent use of a database without allowing two users to modify the same record at the same time.VAX DBMS maintains locks on individual records, entire realms, or both. | VAX DBMS軟件的功能,允許并行使用數(shù)據(jù)庫,而不允許二個(gè)用戶同時(shí)修改同一記錄。VAX DBMS在每個(gè)記錄上,或在整 個(gè)區(qū)域,或同時(shí)在這兩者上都有鎖定機(jī)制。