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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                DDL是數據定義語言,簡單來說,就是對數據庫、數據表、數據字段進行創建、刪除、修改和操作語言,它和數據操作語句(DML)最大的區別在于DML(數據操作語句)是對表內部數據的操作,不涉及表的定義、結構的修改,也不涉及其他對象。 我們在本章在講解這一塊時將其分為了三塊: 1. 數據庫操作 2. 數據表操作 3. 數據字段操作
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