The model consists of four layers - DDL, DML, DPL and CL.
該模型分為數(shù)據(jù)定義層DDL、 數(shù)據(jù)操縱層DML 、 數(shù)據(jù)顯示層DPL和控制層CL四層, 這里重點闡述了DDL和DML層.
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Note that supplying connection information does not initiate data definition language ( DDL ) generation.
請注意,提供連接信息不啟動數(shù)據(jù)定義語言 ( DDL ) 生成.
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The Data Definition Language ( DDL ) part of SQL permits database tables to be created or deleted.
數(shù)據(jù)定義語言 ( DDL ) 為SQL中的一部分,可以讓數(shù)據(jù)表建立或是刪除.
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You can also create database - level triggers that fire in response to Data Definition Language ( DDL ) statements.
也可以創(chuàng)建數(shù)據(jù)庫級別的觸發(fā)器,將引發(fā)這些觸發(fā)器以響應(yīng)數(shù)據(jù)定義語言 ( DDL ) 語句.
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The program illustration about Web three - tier structure programming base on DDL middleware in the mean.
同時也給出了基于DDL中間 件實現(xiàn)Web三層結(jié)構(gòu)程序設(shè)計的應(yīng)用程序的開發(fā)實例.
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Availability of database definition language ( DDL ) and database manipulation language ( DML ) in DAO and ODBC.
DAO和ODBC中的數(shù)據(jù)庫定義語言 ( DDL ) 和數(shù)據(jù)庫操作語言 ( DML ) 的可用性.
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The DDL of Modbus communication protocol was developed to realize the communication function.
開發(fā)了采用Modbus通訊 協(xié)議的動態(tài)鏈接庫,實現(xiàn)了上位機(jī)通過加載該協(xié)議與下位機(jī)的通訊功能.
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