select 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

Does uuid use auto-increment as the primary key?

I have been searching for it online for a long time. Some people say that uuid is better, that is, it is easier to merge data into sub-databases and sub-tables, and some people say that auto-increment is better, when there is more data in the table,

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

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

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))

[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

Simple Method for setting ID field auto-increment when creating a table on SQL server, SQL Field

Simple Method for setting ID field auto-increment when creating a table on SQL server, SQL Field Open the database table to be set and click the field to be set, such as id. The column attribute table of id appears below. In column attributes,

MySQL auto increment-the mysql auto_increment attribute

MySQL faq:how do I define a MySQL auto increment field?Here's an example of the normally create a MySQL auto Increment (auto_increment) field:CREATE TABLE pizzas ( ID int auto_increment NOT NULL, name varchar (+) NOT NULL, primary key (ID));  As

Abandon the auto-increment ID of the database and expose the solution I used-Final

The purpose of writing this essay is to clarify some of the facts and opinions in my previous article "abandon the auto-increment ID of the database and expose the solution I used". At the same time, I will continue to answer the concurrent

Oracle PRIMARY KEY Auto-increment (1) sequence + trigger for Oracle PRIMARY KEY auto-increment

Sequence + trigger for Oracle PRIMARY KEY auto-incrementThe syntax format for a sequence is: CREATE SEQUENCE sequence Name [INCREMENT by n] [START with n] [{maxvalue/minvalue n| Nomaxvalue}][{cycle| Nocycle}][{CACHE n| NOCACHE}];INCREMENT by

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