Solved

Writing Functions in SQL

Posted on 2009-05-07
2
193 Views
Last Modified: 2012-06-21

5) Write a function named min that takes three int values as arguments, and returns the smallest.

How do I get the smallest number using the following Function
CREATE FUNCTION dbo.min (
 
@num1 int,
 
@num2 int,
 
@num3 int )
 
Returns int
 
as 
 
begin 
 
return

Open in new window

0
Comment
Question by:iolike
2 Comments
 
LVL 75

Accepted Solution

by:
Aneesh Retnakaran earned 500 total points
ID: 24333439
CREATE FUNCTION dbo.minimum (
@num1 int,
@num2 int,
@num3 int )
Returns int
as
begin
      declare @min int
      SELECT @Min = CASE WHEN @num1 < @num2 THEN @num1 ELSE @num2 END
      SELECT @Min = CASE WHEN @Min< @num3 THEN @Min ELSE @num3 END
      RETURN (@min)
END

go
0
 
LVL 40

Expert Comment

by:Sharath
ID: 24333550
this will also do.
call this function like this. as you want the function name as MIN, you need to use [ and ] as MIN is key word.

select dbo.[min](1,5,3)

CREATE FUNCTION dbo.[min] (
@num1 int,
@num2 int,
@num3 int )
Returns int
as 
begin
      declare @table table(num int)
      declare @min int
      insert @table values (@num1)
      insert @table values (@num2)
      insert @table values (@num3)
      select @min = min(num) from @table
      return (@min)
end
go 

Open in new window

0

Featured Post

Enterprise Mobility and BYOD For Dummies

Like “For Dummies” books, you can read this in whatever order you choose and learn about mobility and BYOD; and how to put a competitive mobile infrastructure in place. Developed for SMBs and large enterprises alike, you will find helpful use cases, planning, and implementation.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In SQL Server, when rows are selected from a table, does it retrieve data in the order in which it is inserted?  Many believe this is the case. Let us try to examine for ourselves with an example. To get started, use the following script, wh…
This article explains how to reset the password of the sa account on a Microsoft SQL Server.  The steps in this article work in SQL 2005, 2008, 2008 R2, 2012, 2014 and 2016.
Although Jacob Bernoulli (1654-1705) has been credited as the creator of "Binomial Distribution Table", Gottfried Leibniz (1646-1716) did his dissertation on the subject in 1666; Leibniz you may recall is the co-inventor of "Calculus" and beat Isaac…
In an interesting question (https://www.experts-exchange.com/questions/29008360/) here at Experts Exchange, a member asked how to split a single image into multiple images. The primary usage for this is to place many photographs on a flatbed scanner…

839 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question