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| dizionario dei dati | |||
| dizionario di dati | |||
| dizionario dei dati (A database containing data about all the databases in a database system. Data dictionaries store all the various schema and file specifications and their locations. They also contain information about which programs use which data and which users are interested in which reports) | |||
| 英语 词库 | |||
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| DD; DD (SA, CASE, DB) | |||
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| A database that contains the name, type, range of values, source and authorization for access for each data element in a database. It also indicates which application programs use those data so that when a data structure is contemplated, a list of the affected programs can be generated (May be a stand-alone information system used for management or documentation purposes, or it may control the operation of a database) | |||
