mysql identity insert

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SQL Server resets the value of the Identity identity column (int exploded) (reproduced)

First, backgroundThe ID field in table A in the SQL Server database is defined as: [ID] [int] IDENTITY, as the data grows, the ID value is close to 2147483647 (the value range for int is:-2 147 483 648 to 2 147 483 647). , although the old data has

Oracle 12C Identity Columns implementation Oracle self-growth column

In previous versions of Oracle 12C, if you wanted to achieve column growth, you would need to implement a sequence + trigger, and then 12C ORACLE introduced the Identity columns new feature, enabling the column to grow, and Mysql,sql server-like

MySQL Optimization-Delete Insert update and mysql optimization insert update

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

MySQL identity column

#标识列/* is also known as the self-growth column meaning: You can not manually insert the value, the system provides the default sequence value characteristics: 1, the identity column must be combined with the primary key? Not necessarily, but the

[DB] [MySql] about getting the value of the auto-increment field and @ IDENTITY and concurrency issues

[DB] [MySql] about getting the value of the auto-increment field and @ IDENTITY and concurrency issues Anyone who just switched from Oracle to MySql will be confused that MySql does not have Sequence in Oracle. MySql does not have Sequence. How can

Comparison with MSSQL to learn about MYSQL (8) -- insert, update, delete, and mssqlmysql

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

How to install and use MySQL _ MySQL

MySQL installation and use 1. what is MySQLMySQL (pronounced MyEssQueEll) is an SQL database Server developed by Tcx (www. tcx. se) with multiple users and multiple execution threads. MySQL aims to be fast, stable, and easy to use. MySQL can be

[DB] [MYSQL] about getting the value of the self-increment field, and the @ @IDENTITY and concurrency issues

For those who have just turned to MySQL from Oracle, there is no confusion in MySQL for sequence in Oracle. MySQL does not have sequence, then MySQL's primary key in what way to achieve the best?There are several main ways:1. The self-increment

Linux + Apache for user identity authentication

Article title: Linux + Apache implements user identity authentication. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open

Integrate Apache with MySQL for basic identity authentication

There are many ways to implement basic user identity authentication in Apache, such as the most common txt text and DBM pattern, but on servers with heavy loads-these are not imaginary methods, the text is flat-based, with poor performance and

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