insert into emp( id,name,gender,birthday,salary,entry_date,resume_text ) values( 1,’lilei’,’male’,’1991-05-10’,4000, ‘2013-06-10’,’none’ );如何修改
时间: 2023-04-09 09:01:18 浏览: 47
这是一个 SQL 语句,如果需要修改其中的某些值,可以使用 update 命令,例如:
update emp set name='HanMeimei', salary=5000 where id=1;
这将把 id 为 1 的员工的姓名改为 HanMeimei,薪水改为 5000。
相关问题
insert into emp values
Sorry, as an AI language model, I do not have access to any specific database or table to execute the SQL query. However, I can provide you with a general syntax for the INSERT INTO statement in SQL:
Syntax:
INSERT INTO table_name (column1, column2, column3,...columnN)
VALUES (value1, value2, value3,...valueN);
Example:
If you have a table named "employees" with columns "emp_id", "emp_name", "emp_age", and "emp_salary", the INSERT INTO statement to add a new record would look something like this:
INSERT INTO employees (emp_id, emp_name, emp_age, emp_salary)
VALUES (101, 'John Doe', 28, 50000);
This command will insert a new record with emp_id=101, emp_name='John Doe', emp_age=28, and emp_salary=50000 into the employees table.
有一个员工表employees简况如下: emp_no birth_date first_name last_name gender hire_date 10001 1953-09-02 Georgi Facello M 2001-06-22 10002 1964-06-02 Bezalel Simmel F 1999-08-03 有一个薪水表salaries简况如下: emp_no salary from_date to_date 10001 85097 2001-06-22 2002-06-22 10001 88958 2002-06-22 9999-01-01 10002 72527 1999-08-03 2000-08-02 10002 72527 2000-08-02 2001-08-02 请你查找在职员工自入职以来的薪水涨幅情况,给出在职员工编号emp_no以及其对应的薪水涨幅growth
可以通过联结两个表,计算每名员工的薪水涨幅情况。
SQL查询语句如下:
```
SELECT e.emp_no, (s.salary - s_prev.salary) AS growth
FROM employees e
JOIN salaries s ON e.emp_no = s.emp_no
JOIN salaries s_prev ON s.emp_no = s_prev.emp_no
AND s.from_date > s_prev.to_date
AND s_prev.to_date = (
SELECT MAX(to_date)
FROM salaries
WHERE emp_no = s.emp_no
AND to_date < s.from_date
)
WHERE s.to_date = '9999-01-01'
```
解释:
首先,我们联结了两个薪水表,使用了自连接,并且使用了子查询来获取员工上一次薪水记录的to_date,这是为了计算薪水涨幅。
然后,我们筛选出在职员工,即薪水表中to_date为9999-01-01的员工。
最后,我们计算每个员工的薪水涨幅,并且返回员工编号和涨幅。