詞語：DDL
DDL的解釋
DDLabbr. 數據定義語言（data definition language）
DDL的意思
DDL Data Definition Language;數據描述語言;Data Description Language;數據定義語言;DDL triggers 數據定義語言觸發器;DDL DataDefinitionLanguage 數據定義語言;DDL DialogueDescriptionLanguage 會話描述語言;DDL DiagnosticDesignLanguage 診斷設計語言;
DDL的參考例句
1.DDL operations also acquire DML locks (data locks) on the schema object to be modified. DDL操作還需要獲取被修改方案對像上的DML鎖（數據鎖）。
2.Based on the current-rising-rate protection and current increment protection, the principle of DDL protection as well as its action equation is presented. 以電流上升率保護和電流增量保護為基礎，提出了一種新型的DDL保護方法及整定原則，並推導出了完整的動作方程。
3.Dictionary cache locks can be shared or exclusive. Shared locks are released when the parse is complete. Exclusive locks are released when the DDL operation is complete. 數據字典緩存鎖可以為共享或排他的。當語句解析結束時共享鎖將被釋放，而當DDL操作結束時排它鎖將被釋放。