在MySQL中,我们可以使用INSERT INTO语句将查询结果插入到另一个表中。其基本语法如下: INSERTINTOtable_name(column1,column2,column3,...)SELECTcolumn1,column2,column3,...FROManother_tableWHEREcondition; 1. 2. 3. 4. INSERT INTO table_name:指定要插入数据的目标表。 (column1, column2, column3, ....
> both have primary keys(Integer, Not Null,Unique and Auto Increment) If they're PKs, it's redundant to also declare them unique. To see what's going on, run the SEELCT portion of that query by itself.Navigate: Previous Message• Next Message Options: Reply• Quote ...
INSERT INTO table_name (column1, column2, column3, ...) SELECT column1, column2, column3, ... FROM another_table WHERE condition; 将table1中的数据插入到table2中: INSERT INTO table2 (field1, field2) SELECT col1, col2 FROM table1; 批量插入 批量插入是一种高效的方法,特别适用于需要插...
另一种常用的插入记录语句是INSERT INTO SELECT语句。它允许我们从一个表中选择数据并插入到另一个表中。 下面是一个示例: INSERT INTO table_name (column1, column2, column3, ...) SELECT column1, column2, column3, ... FROM another_table WHERE condition; 1. 2. 3. 4. 其中,table_name是要插...
MySQL中添加表数据的方法有以下几种:1. 使用INSERT语句插入单条数据,语法如下: ``` INSERT INTO table_name (column1, column2, ...
INSERT INTO table_name SELECT column1, column2, column3, ... FROM another_table WHERE condition; 在这种情况下,SELECT语句用于选择要插入的数据,可以通过指定列名或使用通配符*选择所有列。another_table是包含要选择数据的表名,condition是可选的筛选条件。
(1)insert into table_A select …… from another_table(需要创建table_A,然后才可以把另一张表的数据放进去,稍微有点麻烦) (2)select…… into table_A from another_table(不需要创建A表,你可以直接创建一张新表,然后把另一张的数据直接放到新表里,简直不要太爽!But,在mysql里用不了呀。然后百度到第...
⑥.修改列名(必须带上参数):mysql> alter table <table> change <old field> <new field> <type> [other]; 4.批量导出数据: 从同一数据库导入:INSERT INTO <table> SELECT field1,field2,field2,..., FROM <another table>; 从不同数据库导入:INSERT INTO <database.table> SELECT field1,field2,fie...
as a foreign key in another table. 4. MySQL 8 新特性:计算列 什么叫计算列呢?简单来说就是某一列的值是通过别的列计算得来的。例如,a列值为 1 、b列值为 2 ,c列不需要手动插入,定义a+b的结果为c的值,那么c就是计算列,是通过别的列计算得来的。 在MySQL 8.0中,CREATE TABLE 和 ALTER TABLE 中...
Unfortunately, this is only inserting zeros into relationships.ProductNumber. Can anyone point me in the right direction? Thank you. Subject Written By Posted INSERT from one table to another Mike Autry March 09, 2010 07:00PM Re: INSERT from one table to another ...