Use CASE in the UPDATE statement : Update « Insert Delete Update « SQL Server / T-SQL

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SQL Server / T-SQL » Insert Delete Update » Update 
Use CASE in the UPDATE statement

27>
28CREATE TABLE project   (project_no   CHAR(4NOT NULL,
29>                         project_name CHAR(15NOT NULL,
30>                         budget FLOAT NULL)
31>
32insert into project values ('p1', 'Search Engine',        120000.00)
33insert into project values ('p2', 'Programming',          95000.00)
34insert into project values ('p3', 'SQL',                  186500.00)
35>
36select from project
37> GO

(rows affected)

(rows affected)

(rows affected)
project_no project_name    budget
---------- --------------- ------------------------
p1         Search Engine                     120000
p2         Programming                        95000
p3         SQL                               186500

(rows affected)
1>
2> -- Use CASE in the UPDATE statement.
3>
4UPDATE project SET budget = CASE
5>           WHEN budget > and budget < 100000 THEN budget* 1.2
6>           WHEN budget > = 100000 and budget < 200000 THEN budget* 1.1
7>           ELSE budget* 1.05
8>           END
9> GO

(rows affected)
1select from project
2> GO
project_no project_name    budget
---------- --------------- ------------------------
p1         Search Engine                     132000
p2         Programming                       114000
p3         SQL                   205150.00000000003

(rows affected)
1> drop table project
2> GO
1>
2>

           
       
Related examples in the same category
1. Updating Rows Based on Multiple Tables
2. An UPDATE statement can only modify data of a single table
3. Update statement and IN operator
4. Modify rows of a table with an expression
5. Update a single column
6. Change more than one column by adding a comma and the additional column expression
7. Using an expression in our UPDATE statement
8. Update command with where condition
9. Update more than one columns in update clause
10. Update a single row
11. Updating a Column Value
12. UPDATE with a Join
13. Reference a declared variable in an update statement
14. Math operator in update statement
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