I have two tables. Employee and Qualifications.
Employee
Emp_id Name Qualification1 Qualification2 Qualification3
10001 xxxxxx 1 3 5
10002 yyyyyy 3 2
.......
......
.....
Qualifications
Qual_ID Qual_name
1 B.Tech
2 MCA
3 M.Tech
How can i use join query to get the following output
Emp_ID Name Qual1 Qual2 Qual3
10001 xxxxxxx B.Tech MCA pppp
10002 yyyyyyy B.Tech
......
.....
.....
try this
Select E.Emp_ID,E.Name,Q1.Qual_Name,Q2.Qual_Name, Q3.Qual_Name
From
Employees AS E
INNER JOIN Qualifications As Q1 ON E.Qualification1=Q1.Qual_ID
INNER JOIN Qualifications As Q2 ON E.Qualification2=Q2.Qual_ID
INNER JOIN Qualifications As Q3 ON E.Qualification3=Q3.Qual_ID
SELECT e.emp_id,
e.name,
q1.qual_name,
q2.qual_name,
q3.qual_name,
FROM employee e
INNER JOIN qualifications q1
ON e.qualification1 = q1.qual_id
INNER JOIN qualifications q2
ON e.qualification2 = q2.qual_id
INNER JOIN qualifications q3
ON e.qualification3 = q2.qual_id
Try this:
Select
Emp_id, Name,
(Select Qual_name from Qualifications where Qualifications.Qual_ID = Employee.Qualification1) as Qual1,
(Select Qual_name from Qualifications where Qualifications.Qual_ID = Employee.Qualification2) as Qual2,
(Select Qual_name from Qualifications where Qualifications.Qual_ID = Employee.Qualification3) as Qual3
From Employee
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.