create table register ( ac_number varchar(20) not null, us_number varchar(20) not null, re_number varchar(20) not null, re_station varchar(20) not null, re_time date not null, primary key (re_number), CONSTRAINT re_station_check CHECK (re_station in ('waiting', 'pass', 'failed')) ) ENGINE=InnoDB DEFAULT CHARSET=utf8; 以上语句合法吗
时间: 2024-04-18 12:25:59 浏览: 9
以上语句是合法的。这条SQL语句创建了一个名为"register"的表,包含了ac_number、us_number、re_number、re_station和re_time等列。re_number被定义为主键,并且通过CHECK约束(re_station_check)限制了re_station的取值只能是'waiting'、'pass'或'failed'。
表的存储引擎被设置为InnoDB,字符集为utf8。
请注意,这只是一个语法上的验证,具体是否符合你的业务逻辑还需要根据实际需求进行确认。
相关问题
根据以下给的数据库表结构,用PyQt5+MySQL实现增删改查,表结构如下:CREATE TABLE `register_copy1` ( `id` int NOT NULL AUTO_INCREMENT, `register_type` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL, `tooth_number` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL, `hospital_name` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL, `doctor_name` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL, `patient_name` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `color_name` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `category_name` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL, `price` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL, `tooth_a` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `tooth_b` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `tooth_c` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `tooth_d` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `number` int NOT NULL, `amount_of_money` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL, `delivery_date` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL, `register_date` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL, `remark` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `total_amount` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, PRIMARY KEY (`id`) USING BTREE ) ENGINE = InnoDB AUTO_INCREMENT = 48 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic; SET FOREIGN_KEY_CHECKS = 1;
我可以回答这个问题。要实现增删改查,需要使用PyQt5和MySQL。首先,需要连接到MySQL数据库,然后创建一个表格模型,并将其与表格视图关联。接下来,可以使用模型的方法来添加、删除和修改数据。查询数据可以使用SQL语句来执行。具体实现细节可以参考PyQt5和MySQL的文档。
根据以下数据库register表创建一个unfinished表,表有两个字段一个为id字段,一个为register_id字段与register表的id字段关联,`register` ( `id` int NOT NULL AUTO_INCREMENT, `register_type` varchar(255), `tooth_number` varchar(255), PRIMARY KEY (`id`) USING BTREE ) ENGINE = InnoDB AUTO_INCREMENT = 53 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic; SET FOREIGN_KEY_CHECKS = 1;
可以回答这个问题。根据以上的register表创建一个unfinished表的SQL语句如下:
CREATE TABLE `unfinished` (
`id` int NOT NULL AUTO_INCREMENT,
`register_id` int NOT NULL,
PRIMARY KEY (`id`),
FOREIGN KEY (`register_id`) REFERENCES `register`(`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_general_ci;
这个SQL语句创建了一个名为unfinished的表,包含id和register_id两个字段,其中id为自增长的主键,register_id为与register表的id字段关联的外键。
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