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                ## 插入操作 本質含義 : 將數據以SQL的形式存儲到指定的數據表(字段)里面. #### 語法1 注意:后面(values中)對應的值列表只需要與前面的字段列表相對應即可(不一定與表結構完全一致) ~~~ insert into class (字段1,字段2,字段3...) values (數據1,數據2,數據3...); 如: insert into class (id,name,nickname,age,height,weight) values (null,'jack','superman',20,120,100); ~~~ #### 語法2 這里的values中值就需要和表結構中所有的字段一一對應了. ~~~ insert into class values (數據1,數據2,數據3...); ~~~ #### 多條數據插入 ~~~ insert into 表名 values ('jack'),('米蘭'); ~~~ #### 主鍵沖突 ~~~ insert into 表名 value ('jack') on duplicate key update 字段名 = 值; ~~~ ~~~ replace into 表名 values (1 ,'jack'); ~~~
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