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                # 優化insert語句 當進行數據的insert操作的時候,可以考慮采用以下幾種優化方案。 - 如果需要同時對一張表插入很多行數據時,應該盡量使用多個值表的insert語句,這種方式將大大的縮減客戶端與數據庫之間的連接、關閉等消耗。使得效率比分開執行的單個insert語句快。 示例, 原始方式為: ```sql insert into tb_test values(1,'Tom'); insert into tb_test values(2,'Cat'); insert into tb_test values(3,'Jerry'); ``` 優化后的方案為 : ```sql insert into tb_test values(1,'Tom'),(2,'Cat'),(3,'Jerry'); ``` - 在事務中進行數據插入。 ```sql start transaction; insert into tb_test values(1,'Tom'); insert into tb_test values(2,'Cat'); insert into tb_test values(3,'Jerry'); commit; ``` - 數據有序插入 ```sql insert into tb_test values(4,'Tim'); insert into tb_test values(1,'Tom'); insert into tb_test values(3,'Jerry'); insert into tb_test values(5,'Rose'); insert into tb_test values(2,'Cat'); ``` 優化后 ```sql insert into tb_test values(1,'Tom'); insert into tb_test values(2,'Cat'); insert into tb_test values(3,'Jerry'); insert into tb_test values(4,'Tim'); insert into tb_test values(5,'Rose'); ```
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