mysql column auto increment

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Mysql auto-increment field rearrangement after mysql deletes the table, the auto-increment field starts from 1.

MyISAM data table After a record with the maximum number is deleted, the number cannot be reused. You can use the "auto_increment = N" option to specify an auto-increment initial value when creating a table. You can use the alter table table_name

How does SQL Server modify the auto-increment column value and corresponding solutions?

How does SQL Server modify the auto-increment column value and corresponding solutions? A special task encountered in today's work is to change the values of the two auto-incrementing columns.Since the SQL Server platform has previously migrated the

Repeated values in the innodb auto-increment column _ MySQL

Repeated innodb auto-increment column values 1. duplicate values in the innodb auto-increment column Start with the problem and reproduce the bug. use test;drop table t1;create table t1(id int auto_increment, a int, primary key (id))

MySQL auto-increment column inserts 0 values

When migrating a database from MSSQL to MySQL, You need to insert 0 values in the auto-increment column of MySQL based on the requirements of business logic. In MSSQL, this is done as follows: When migrating a database from MSSQL to MySQL, You need

Auto-increment ID of MYSQL

When you insert A piece of data in Table A and insert data in Table B, you need to add the auto-increment corresponding to the corresponding field in table A. How do you get the auto-increment of Table? Next, we will introduce the auto-increment in

[Growth] creating MySQL auto-increment Fields

From: http://blog.chinaunix.net/space.php? Uid = 13626447 & Do = Blog & cuid = 392987   Usage: Create Table Test(Id int unsigned not null primary key auto_increment,Username varchar (15) not null)Auto_increment = 100; In database

How to reset the initial value of AUTO_INCREMENT in the auto-increment column of mysql

Reset the initial value of AUTO_INCREMENT In the MySQL auto-incrementing ColumnNote that existing data will be deleted using any of the following methods.Method 1:Delete from tb1;Alter table tbl AUTO_INCREMENT = 100;(Benefit, you can set

How to reset the initial value of AUTO_INCREMENT in the auto-increment column of mysql

Reset the initial value of AUTO_INCREMENT In the MySQL auto-incrementing ColumnNote that existing data will be deleted using any of the following methods. Method 1:Delete from tb1;Alter table tbl AUTO_INCREMENT = 100;(Benefit, you can set

Mysql auto-incrementing column leads to duplicate primary key issue analysis..., mysql primary key

Mysql auto-incrementing column leads to duplicate primary key issue analysis..., mysql primary key A few days ago, the development of shoes reported a problem of using the load data infile command to import data primary key conflicts. After analysis,

Precautions for using the AUTO_INCREMENT column in MySQL: update auto-incrementing column _ MySQL

1 description (1) for the MyISAM table, if the auto-increment column is updated using UPDATE, if the column 20540 is repeated with the existing 20540, an error will occur. if the column is greater than the existing maximum 20540 ;, the

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