sql insert ignore

Insert Syntax INSERT [Low_priority | Delayed | High_priority] [IGNORE] [Into] tbl_name [(Col_name,...)] VALUES ({expr | DEFAULT},...), (...),... [on DUPLICATE KEY UPDATE col_name=expr, ...] Or: INSERT [Low_priority | Delayed | High_priority]

Insert into, replace into, insert ignore, replaceignore I recently discovered that mysql insert statements have so many usage cases. Here I will share with you. ① Insert: Insert into table_name values (); Insert into table_name (column) values

This article refers to the link: http://blog.csdn.net/jbboy/article/details/46828917"I think the article is more suitable for learning and reference, it is worth a look"This article to provide you with three kinds of in MySQL to avoid repeated

This article to provide you with three kinds of in MySQL to avoid repeated insertion record method, mainly refers to the Ignore,replace,on DUPLICATE key update three methods, you can try to reference.Case one: Using the Ignore keywordIf the

This article to provide you with three kinds of in MySQL to avoid repeated insertion record method, mainly refers to the Ignore,replace,on DUPLICATE key update three methods, you can try to reference.Case one: Using the Ignore keywordIf the

Mysqlinsert operations (DELAYED, IGNORE, ONDUPLICATEKEYUPDATE) bitsCN.com INSERT syntax INSERT [LOW_PRIORITY | DELAYED | HIGH_PRIORITY] [IGNORE] [INTO] tbl_name [(col_name,...)] VALUES ({expr | DEFAULT },...),(...),... [On duplicate key update

DELAYED is used as a quick insert, but it is not very concerned about the invalidation and improves the insert performance. DELAYED is used as a quick insert, but it is not very concerned about the invalidation and improves the insert performance.

Comparison with MSSQL to learn about MYSQL (8) -- insert, update, delete, and mssqlmysql Similarly, it will only explain the difference between SQL Server and SQL Server. Insert Insert multi-row query results into the table Syntax INSERT INTO

Original: Does SQL Server really go to update or ignore when the update value is the same as the original value?Consider the following scenario:When the update value is the same as the original value, does SQL Server really go to update or ignore it?

MySQL Optimization-Delete Insert update and mysql optimization insert update Reprinted please indicate the source: http://blog.csdn.net/l1028386804/article/details/46581769 Insert Insert multi-row query results into the table Syntax INSERT INTO