Case in Select Statement

0 votes

I have an SQL statement that has a CASE from SELECT and I just can't get it right. Can you guys show me an example of CASE where the cases are the conditions and the results are from the cases. For example:

     Select xxx, yyy
     case : desc case when bbb then 'blackberry';
     when sss then 'samsung';
     end 
     from (select ???? .....

where the results show

 name                         age       handphone
xxx1                         yyy1      blackberry
xxx2                         yyy2      blackberry
Feb 4, 2022 in Database by Vaani
• 7,020 points
143 views

2 answers to this question.

0 votes

The MSDN is a good reference for these type of questions regarding syntax and usage. This is from the Transact SQL Reference - CASE page.

http://msdn.microsoft.com/en-us/library/ms181765.aspx

USE AdventureWorks2012;
GO
SELECT   ProductNumber, Name, "Price Range" = 
  CASE 
     WHEN ListPrice =  0 THEN 'Mfg item - not for resale'
     WHEN ListPrice < 50 THEN 'Under $50'
     WHEN ListPrice >= 50 and ListPrice < 250 THEN 'Under $250'
     WHEN ListPrice >= 250 and ListPrice < 1000 THEN 'Under $1000'
     ELSE 'Over $1000'
  END
FROM Production.Product
ORDER BY ProductNumber ;
GO

Another good site you may want to check out if you're using SQL Server is SQL Server Central. This has a large variety of resources available for whatever area of SQL Server you would like to learn.

answered Feb 4, 2022 by Neha
• 8,940 points
0 votes

I think these could be helpful for you .

Using a SELECT statement with a simple CASE expression

Within a SELECT statement, a simple CASE expression allows for only an equality check; no other comparisons are made. The following example uses the CASE expression to change the display of product line categories to make them more understandable.

USE AdventureWorks2012;
GO
SELECT   ProductNumber, Category =
      CASE ProductLine
         WHEN 'R' THEN 'Road'
         WHEN 'M' THEN 'Mountain'
         WHEN 'T' THEN 'Touring'
         WHEN 'S' THEN 'Other sale items'
         ELSE 'Not for sale'
      END,
   Name
FROM Production.Product
ORDER BY ProductNumber;
GO

Using a SELECT statement with a searched CASE expression

Within a SELECT statement, the searched CASE expression allows for values to be replaced in the result set based on comparison values. The following example displays the list price as a text comment based on the price range for a product.

USE AdventureWorks2012;
GO
SELECT   ProductNumber, Name, "Price Range" = 
      CASE 
         WHEN ListPrice =  0 THEN 'Mfg item - not for resale'
         WHEN ListPrice < 50 THEN 'Under $50'
         WHEN ListPrice >= 50 and ListPrice < 250 THEN 'Under $250'
         WHEN ListPrice >= 250 and ListPrice < 1000 THEN 'Under $1000'
         ELSE 'Over $1000'
      END
FROM Production.Product
ORDER BY ProductNumber ;
GO

answered Feb 4, 2022 by Neha
• 8,940 points

Related Questions In Database

0 votes
1 answer

SQL Server CASE .. WHEN .. IN statement

Two forms of CASE statements are getting ...READ MORE

answered Feb 8, 2022 in Database by Vaani
• 7,020 points
174 views
0 votes
0 answers

SQL use CASE statement in WHERE IN clause

Can you use a case statement in ...READ MORE

Aug 9, 2022 in Database by Kithuzzz
• 28,320 points
126 views
0 votes
0 answers

What is the purpose of Order By 1 in SQL select statement?

I discovered numerous views with an order ...READ MORE

Aug 19, 2022 in Database by Kithuzzz
• 28,320 points
148 views
0 votes
0 answers

How to use index in select statement?

Let's imagine I established an index (idx ...READ MORE

Aug 30, 2022 in Database by Kithuzzz
• 28,320 points
88 views
0 votes
1 answer

How do I perform an IF THEN statement in an SQL SELECT?

The CASE statement is the closest to IF in ...READ MORE

answered Feb 16, 2022 in Database by Vaani
• 7,020 points
324 views
0 votes
1 answer

Case in Select Statement

 use: SELECT CASE ...READ MORE

answered Jun 6, 2022 in Ask us Anything! by nisha
• 2,190 points
92 views
0 votes
0 answers

"CASE" statement within "WHERE" clause in SQL Server 2008

The query I'm working with has a ...READ MORE

Sep 3, 2022 in Database by Kithuzzz
• 28,320 points
102 views
0 votes
1 answer

Calculate Time Intersection to Correlate Sequences of Independent Events

I think this solution requires a CROSS JOIN implementation. ...READ MORE

answered Oct 26, 2018 in Power BI by Upasana
• 8,620 points
370 views
0 votes
1 answer

How to generate the statement CREATE TABLE for an existing table in postgreSQL?

Generate table creation statement for an existing ...READ MORE

answered Feb 9, 2022 in Database by Neha
• 8,940 points
2,131 views
0 votes
1 answer

Ordering by the order of values in a SQL IN() clause

Use MySQL's FIELD() function: SELECT name, description, ... FROM ... WHERE id ...READ MORE

answered Feb 4, 2022 in Database by Neha
• 8,940 points
1,942 views
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP