sp_help for MySQL显示字段类型和外键约束？
在MySQL中，可以借助SHOWCREATE命令来实现sp_help。
案例1-
对于表，语法如下-
SHOW CREATE TABLE yourTableName;
案例2-
对于存储过程，语法如下-
SHOW CREATE PROCEDURE yourProcedureName;
让我们首先创建一个表-
mysql> create table DemoTable ( EmployeeId int NOT NULL AUTO_INCREMENT, EmployeeFirstName varchar(40) NOT NULL, EmployeeLastName varchar(40) NOT NULL, EmployeeAge int, EmployeeCountryName varchar(40), EmployeeCityName varchar(40), PRIMARY KEY(EmployeeId), UNIQUE KEY(EmployeeFirstName,EmployeeCityName) );
让我们为表实现以上语法-
mysql> SHOW CREATE TABLE DemoTable;
这将产生以下显示字段名称和约束的输出-
+---------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | Table | Create Table +---------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | DemoTable | CREATE TABLE `demotable` (`EmployeeId` int(11) NOT NULL AUTO_INCREMENT, `EmployeeFirstName` varchar(40) COLLATE utf8_unicode_ci NOT NULL, `EmployeeLastName` varchar(40) COLLATE utf8_unicode_ci NOT NULL, `EmployeeAge` int(11) DEFAULT NULL, `EmployeeCountryName` varchar(40) COLLATE utf8_unicode_ci DEFAULT NULL, `EmployeeCityName` varchar(40) COLLATE utf8_unicode_ci DEFAULT NULL, PRIMARY KEY (`EmployeeId`), UNIQUE KEY `EmployeeFirstName` (`EmployeeFirstName`,`EmployeeCityName`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci | +---------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ 1 row in set (0.03 sec)