mysql create table with auto increment primary key

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

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,

[PHP] MySQL obtains the primary key (auto-increment ID) and mysql primary key of the inserted data.   To prevent primary key conflicts, auto-increment (auto_increment type) fields are often used in DB Design. Therefore, the primary key of the

"PHP" MySQL gets the primary key for inserting data (self-increment id), MySQL primary key To prevent primary key collisions, the self-increment (auto_increment) field is often used when designing db. So before inserting the data, we often don't

Go deep into the setting of automatic growth of primary keys in Mysql, SqlServer, and Oracle bitsCN.com 1. define the primary key as the automatic growth Identifier typeMySqlIn mysql, if the table's primary key is set to auto_increment type, the

[PHP] MySQL obtains the primary key (auto-increment ID) of the inserted data. to prevent primary key conflicts, the auto-increment (auto_increment type) field is often used during database design. Therefore, the primary key of the modified record is

Mybatis implements the oracle primary key auto-increment mechanism tutorial, mybatisoracle How to Implement oracle primary key auto-increment using mybatis First, let's look at how to create primary keys for the same student table, mysql, SQL

1. Define the primary key as the automatic growth identifier typeMySqlIn mysql, if the table's primary key is set to auto_increment type, the database automatically assigns a value to the primary key. For example: Copy codeThe Code is as follows:

For the same student table, for mysql, sqlserver, and oracle, how do they create primary keys? in mysql, createtableStudent (Student_IDint (6) NOTNULLPRIMARYKEYAUTO_INCREMENT, Student_Namevarchar (10) NOTNULL, student_Ageint (2) NOTNULL); ins First,

1. Define the primary key as the automatic growth identifier typeMySqlIn mysql, if the table's primary key is set to auto_increment type, the database automatically assigns a value to the primary key. For example:Copy codeThe Code is as