Server returns invalid timezone. Go to 'Advanced' tab and set 'serverTimezone' property manually.

DataGrid 连接MySql数据库报错：

参考：

MySQL报错：Server returns invalid timezone. Go to 'Advanced' tab and set 'serverTimezone' property manually.

 

 

2、导入sql的命令行如下：
source 路径名+/mytest_emp_dept.sql 

注意路径名不要引号

 

3、 Data too long for column 'userName' at row 1

解决：set userName utf8 ; 

或者CREATE DATABASE IF NOT EXISTS databaseName DEFAULT CHARSET utf8 COLLATE utf8_general_ci;

第二种方法更方便，如果有多个字段（例如userName）报错，第一种方法很麻烦。

参考：ERROR 1406 (22001): Data too long for column 'c_name' at row 1&&ERROR 1366 (HY000): Incorrect string

 

4、You are not allowed to create a user with GRANT

 

5、Column check constraint 'orders_chk_1' references other column.

解决：

Making check constraint in table level

将

CREATE TABLE orders
(
	# 订单号
	orderNumber CHAR(32) NOT NULL  , 
	# 订单状态
	orderStatus CHAR(18) check (value in ('预订中','已入住','已退房')) ,
	# 客户身份证
	customerIDCard CHAR(18),
	# 入住房间号
	roomNumber CHAR(6) NOT NULL,
	# 入住时间
	checkInTime DATE NOT NULL,
	# 离店时间
	checkOutTime DATE NOT NULL,
	# 需付金额(由于可能续费，不能作为外键)
	totalMoney INT UNSIGNED NOT NULL,
	# 服务员工号
	waiterID VARCHAR(10) NOT NULL,
	# 备注
	remarks VARCHAR(32),
	orderTime DATE NOT NULL,
	# 主键
	PRIMARY KEY (orderNumber),
	# 外键
	FOREIGN KEY (customerIDCard) REFERENCES customers(customerIDCard),

	FOREIGN KEY (roomNumber) REFERENCES room(roomNumber),

	FOREIGN KEY (waiterID) REFERENCES waiter(waiterID)

) ENGINE=InnoDB;

改为：

CREATE TABLE orders
(
	# 订单号
	orderNumber CHAR(32) NOT NULL  ,
	# 订单状态
	orderStatus CHAR(18) ,
	# 客户身份证
	customerIDCard CHAR(18),
	# 入住房间号
	roomNumber CHAR(6) NOT NULL,
	# 入住时间
	checkInTime DATE NOT NULL,
	# 离店时间
	checkOutTime DATE NOT NULL,
	# 需付金额(由于可能续费，不能作为外键)
	totalMoney INT UNSIGNED NOT NULL,
	# 服务员工号
	waiterID VARCHAR(10) NOT NULL,
	# 备注
	remarks VARCHAR(32),
	orderTime DATE NOT NULL,
	# 主键
	PRIMARY KEY (orderNumber),
	# 外键
	FOREIGN KEY (customerIDCard) REFERENCES customers(customerIDCard),

	FOREIGN KEY (roomNumber) REFERENCES room(roomNumber),

	FOREIGN KEY (waiterID) REFERENCES waiter(waiterID),

	CONSTRAINT orders_ck CHECK (orderStatus in ('预订中','已入住','已退房'))

) ENGINE=InnoDB;

6、授予权限 grant语句格式：

grant 权限 on 数据库.* to 用户名@登录主机 identified by "密码";　

7、新增用户：

grant select,insert,update,delete on book.* to test2@localhost Identified by "abc"

参考：MySQL添加用户、删除用户与授权

8、

grant SELECT,INSERT on timeextension to hotel IDENTIFIED by '1234';语句报错：

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 'IDENTIFIED by '1234'' at line 1

原因：此版的的mysql版本把将创建账户和赋予权限分开了。

首先创建用户，然后赋予权限。创建hotel用户后，赋予权限（去掉IDENTIFIED by '1234'）：

 grant SELECT,INSERT on timeextension to hotel;

参考：mysql版本:'for the right syntax to use near 'identified by 'password' with grant option'