MySQL中INSERT，UPDATE和REPLACE的区别与用法

mysql如何输入批量插入 mysql写多条insert代码教程

Strictly speaking, there are four ways to insert data into MySQL batches;其实很简单。
我们先来说说最重要的事情。
The syntax of inserting multiple values ​​with a single INSERT statement is simple, but when the database size is large. This can exceed MySQL's max_allowed_packet limit, and if any one statement fails, everything will fail. Another point is that using transactions for multiple INSERT statements can ensure data consistency, but will take up a lot of resources when the disk volume is large.还有一个更重要的细节。
LOADDATAINFILE is the officially recommended method and has the best performance; But you must be careful about permissions and escaping special characters. Finally, The batch input function of the programming language is flexible, but requires writing extra code.
At first I thought that one INSERT statement and inserting multiple values ​​was enough, but later I found out that when the database size is large, there is a real problem.等等还有一个。
使用 LOADDATAINFILE 时； Character setting is very important and must be consistent.
So choose the appropriate method based on data volume and performance requirements.小型如果性能要求不高的话。
您可以使用单个 INSERT。
Data volume is moderate and use transactions for consistency. Use LOADDATAINFILE if the file size is large and performance is a concern.如果需要数据处理；使用编程语言添加到堆栈中。
Don't forget to optimize performance and fix Chinese character garbled problem.

如何在mysql中使用INSERT语句插入多条记录

说白了，MySQL多行插入效率高，需要的通信也少。

1 .基本用法：括号中的多个数据集VALUES，用逗号分隔。
2 、从表中导入：INSERT...SELECT，字段的顺序和数量必须一致。
3 .注意：必须处理字段匹配、类型匹配、NULL值。
4 .优化：合并插入，避免长指令，批量提交。
5 、对比：一次插入多行和重复插入单行，效率差异巨大。
6 .总结：多行插入速度快，适用场景广泛。