SQL错误IS操作数类型冲突：int与日期不兼容

Question

CREATE TABLE prime_emp (
emp_id INT not null,
first_name VARCHAR(14) not null,
 last_name VARCHAR(14) not null,
 birth_date DATE not null,
 father_name VARCHAR (14) not null,
 mather_name VARCHAR (14),
joing_date DATE not null,
departmen VARCHAR(14) not null,
Primary key (emp_id)
)
select * from prime_emp
insert into prime_emp
(emp_id,first_name,last_name,birth_date,father_name,mather_name, joing_date,departmen)
values(01,'Ashish','Soni',15-07-1990,'Suman','Usha',28-10-2013,'Media');

但是我收到一条错误消息：

消息206，级别16，状态2，第13行操作数类型冲突：int与日期不兼容

Answer 1

按照以下格式写日期字段{d'yyyy-mm-dd'}

另一个任命：emp_id = 1而不是01，因为emp_id是int，所以0丢失了。

尝试这个：

insert into prime_emp
(emp_id,first_name,last_name,birth_date,father_name,mather_name, joing_date, departmen)
values
(1,'Ashish','Soni',{d '1990-07-15'},'Suman','Usha',{d '2013-10-28'},'Media');

Answer 2

您应该在日期值前后加上引号 。 否则，它将被视为算术表达式。

因此，将您的insert查询更改为

insert into prime_emp
(emp_id,first_name,last_name,birth_date,father_name,mather_name, joing_date,departmen)
values(01,'Ashish','Soni','15-07-1990','Suman','Usha','28-10-2013','Media');