mysql> select * from setenum where settype=b'10011'; Empty set mysql> select * from setenum where enumtype=b'100'; Empty set 1. 2. 3. 4. 5. 6. 7. 8. SELECT * FROM setenum WHERE settype LIKE '%赵%'; 1. –与FIND_IN_SET函数同 SELECT * FROM setenum WHERE FIND_IN_SET('...
mysql> create table test (name varchar(40), sex enum('male', concat('fem', 'ale') ); ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'concat('fem', 'ale') )' at line 1...
ENUM 列定义中的重复值会导致警告，如果启用了严格的 SQL 模式，则会出错 臭名昭著的 MySQL ENUM 类型...
An ENUM is a string object with a value chosen from a list of permitted values that are enumerated explicitly in the column specification at table creation time. See Section 11.3.1, “String Data Type Syntax” for ENUM type syntax and length limits. ...
Specifies MySQL specific data type of a field, property, for use in aMySqlParameter. Namespace:MySql.Data.MySqlClient Assembly: MySql.Data.dll Version: 9.3.0 Syntax publicenumMySqlDbType Fields NameDescription Binary Fixed length binary string. ...
1 row in set (0.00 sec) 测试第二个枚举类型字段Work_City是否允许存储NULL值: root@localhost : test 11:22:53> INSERT INTO mysqlops_enum(ID,Job_type,Work_City) VALUES(3,‘Other’,NULL); ERROR 1048 (23000): Column ‘Work_City’ cannot be null ...
mysql enum字段 mysql enum注意 mysql enum检索 mysql enum查询 mysql添加enum mysql 添加enum mysql enum效率 mysql对应java的enum 查看mysql 字段的enum MySQL Enum的性能优势? mysql enum值新增 jdbc获取mysql enum mysql enum类型作用 mysql enum可以order ...
MySQL数据库:5.5.15-log InnoDB存储引擎:plugin-InnoDB 1.1.8 (二) 测试数据准备 鉴于篇幅的缘由,单独作为一篇文章分享在www.mysqlops.com网站上,请点击MySQL数据库之数据类型集合类型和枚举类型测试环境 (三) 枚举类型ENUM字段DDL操作 a. 增加枚举类型字段定义的默认值属性 ...
Bug #61361 Possible of duplicated primary key by enum type Submitted: 31 May 2011 10:59Modified: 15 Oct 2011 17:34 Reporter: Dennis Cheung Email Updates: Status: Not a Bug Impact on me: None Category: MySQL ServerSeverity: S3 (Non-critical) Version: 5.5.9OS: Any Assigned to: CPU...
status = django_mysql.models.EnumField(choices=STATUS_LIST) def __str__(self): return self.username 在迁移后,查看数据库的类型,是真正的MySQLENUM类型,而非通过VARCHAR模拟。 +---+---+- | Field | Type | +---+---+- | id | int | |...