mysql create table with primary key auto_increment
No value was specified for the AUTO_INCREMENT column, so MySQL assigned sequence numbers automatically. You can also explicitly assign 0 to the column to generate sequence numbers, unless the NO_AUTO_VALUE_ON_ZERO SQL mode is enabled. If the column is dec,If the AUTO_INCREMENT column is part of multiple indexes, MySQL generates sequence values using the index that begins with the AUTO_INCREMENT column, if there is one. For example, if the animals table contained indexes PRIMARY KEY (grp, id) and INDEX (id)
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 mysql create table with primary key auto_increment 相關參考資料
MySQL 5.7 Reference Manual :: 3.6.9 Using AUTO_INCREMENT
If the AUTO_INCREMENT column is part of multiple indexes, MySQL generates sequence values using the index that begins with the AUTO_INCREMENT column, if there is one. For example, if the animals table... https://dev.mysql.com MySQL Tutorial :: 7.9 Using AUTO_INCREMENT - MySQL :: Developer ...
No value was specified for the AUTO_INCREMENT column, so MySQL assigned sequence numbers automatically. You can also explicitly assign 0 to the column to generate sequence numbers, unless the NO_AUTO_... https://dev.mysql.com MySQL 5.6 Reference Manual :: 3.6.9 Using AUTO_INCREMENT
If the AUTO_INCREMENT column is part of multiple indexes, MySQL generates sequence values using the index that begins with the AUTO_INCREMENT column, if there is one. For example, if the animals table... https://dev.mysql.com MySQL 5.5 Reference Manual :: 3.6.9 Using AUTO_INCREMENT
If the AUTO_INCREMENT column is part of multiple indexes, MySQL generates sequence values using the index that begins with the AUTO_INCREMENT column, if there is one. For example, if the animals table... https://dev.mysql.com SQL AUTO INCREMENT a Field - W3Schools
Syntax for MySQL. The following SQL statement defines the "ID" column to be an auto-increment primary key field in the "Persons" table: CREATE TABLE Persons ( ID int NOT NULL AUTO_... https://www.w3schools.com How to make MySQL table primary key auto increment with some ...
If you really need this you can achieve your goal with help of separate table for sequencing (if you don't mind) and a trigger. Tables CREATE TABLE table1_seq ( id INT NOT NULL AUTO_INCREMENT PRI... https://stackoverflow.com mysql - SQL create table and set auto increment value without ...
mysql> CREATE TABLE Persons ( -> ID int NOT NULL AUTO_INCREMENT, -> LastName varchar(255) NOT NULL, -> FirstName varchar(255), -> Address varchar(255), -> PRIMARY KEY (ID) -> )AU... https://stackoverflow.com primary key - make an ID in a mysql table auto_increment (after ...
For example, here's a table that has a primary key but is not AUTO_INCREMENT : mysql> CREATE TABLE foo ( id INT NOT NULL, PRIMARY KEY (id) ); mysql> INSERT INTO foo VALUES (1), (2), (5);. Y... https://stackoverflow.com 建榮的資訊筆記: MySQL的AUTO_INCREMENT欄位
資料表的結構如下： CREATE TABLE `test1` ( `idpass` int(11) NOT NULL auto_increment, `datapass` varchar(20) NOT NULL, PRIMARY KEY (`idpass`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ; 因為欄位是AUTO_IN... http://jiannrong.blogspot.com |