1. 什么是 INSERT 语句? INSERT语句是SQL中的一种数据操作语言(DML)命令,用于向表中插入新记录。通过该命令,我们可以向MySQL表中添加单行或多行数据。单行插入十分简单,但多行插入在处理大量数据时会显得更为高效。 2. 基础语法 在MySQL中,插入数据的基本语法如下: INSERTINTO表名(列1,列2,列3,...)VALUES(...
1 row affected (0.00 sec) mysql> select * from dept_bak; +---+---+---+ | DEPTNO | DNAME | LOC | +---+---+---+ | 10 | abc | tj | | 10 | abc | tj | +---+---+---+ 2 rows in set (0.00 sec) mysql> rollback; Query OK, 0 rows affected (0.00 sec) mysql...
refman/5.0/en/example-auto-increment.html"Note For a multiple-row insert, LAST_INSERT_ID() and mysql_insert_id() actually return the AUTO_INCREMENT key from the first of the inserted rows. This allows multiple-row inserts to be reproduced correctly on other servers in a replication setup."...
MySQL Forums Forum List » Stored Procedures Advanced Search New Topic Re: How to create Stored Procedure to INSERT multiple Rows in a tablePosted by: Hemant Mehta Date: April 26, 2020 01:58PM Hello Peter, Apologies for not making requirement clear. I will try to put requirement ...
To insert multiple rows into a table, use theexecutemany()method. The second parameter of theexecutemany()method is a list of tuples, containing the data you want to insert: Example Fill the "customers" table with data: importmysql.connector ...
The ID that was generated is maintained in the server on aper-connection basis. LAST_INSERT_ID是基于单个connection的, 不可能被其它的客户端连接改变。 可以用 SELECT LAST_INSERT_ID(); 查询LAST_INSERT_ID的值. Important: If you insert multiple rows using a singleINSERTstatement,LAST_INSERT_ID()...
The ID that was generated is maintained in the server on aper-connection basis. LAST_INSERT_ID是基于单个connection的, 不可能被其它的客户端连接改变。 可以用 SELECT LAST_INSERT_ID(); 查询LAST_INSERT_ID的值. Important: If you insert multiple rows using a singleINSERTstatement,LAST_INSERT_ID()...
The `INSERT` statement in MySQL is used to add new rows of data into a table. It is essential for populating tables with initial data or appending new records. Usage The `INSERT` statement is employed when you need to add new data to a table. It can insert single or multiple rows at...
...多行子查询(Multiple Rows Subquery)多行子查询返回多个值,通常用于与外部查询的某些列进行比较,使用 IN、ANY 或 ALL 等操作符。...子查询有多种形式:单行子查询、多行子查询、多列子查询、和 相关子查询。子查询通常用于 WHERE、FROM、SELECT 子句中。性能优化:有时候使用 JOIN 可以替代子查询,通常能提高...
insert into b set a_id=_a_id, whatever=b_params; insert into c set a_id=_a_id, whatever=c_params; commit; else -- error handle rollback; end if; end; Subject Views Written By Posted Inset multiple rows with primary key from another insert 3485 RICARDO...