May 08, 2010

SQL Query to find out who attended office on Saturday

A client of mine had a report requirement to find out the employees who attended office on Saturday in the last 30 days and their Check-In Check-Out times.

Here is some sample data that does that. For convenience, I have not added the CheckOut time, but hopefully you will get the idea

SAMPLE Data

DECLARE @TT TABLE (EID int, CheckIn DATETIME)
INSERT INTO @TT VALUES (2, 'April 02, 2010 11:25am')
INSERT INTO @TT VALUES (4, 'April 03, 2010 9:55am')
INSERT INTO @TT VALUES (5, 'April 07, 2010 11:24am')
INSERT INTO @TT VALUES (2, 'April 10, 2010 11:22am')
INSERT INTO @TT VALUES (3, 'April 15, 2010 5:27am')
INSERT INTO @TT VALUES (6, 'April 16, 2010 8:21am')
INSERT INTO @TT VALUES (7, 'April 17, 2010 11:55am')
INSERT INTO @TT VALUES (3, 'April 22, 2010 10:16am')
INSERT INTO @TT VALUES (4, 'April 24, 2010 11:35am')
INSERT INTO @TT VALUES (7, 'April 30, 2010 9:49pm')
INSERT INTO @TT VALUES (2, 'May 01, 2010 9:49am')
INSERT INTO @TT VALUES (5, 'May 02, 2010 10:43am')
INSERT INTO @TT VALUES (3, 'May 03, 2010 11:29am')

QUERY

SELECT * FROM @TT
WHERE DATENAME(weekday, CheckIn) = 'SATURDAY'
AND DATEDIFF(DD, CheckIn, GETDATE()) < 30

OUTPUT

Find Saturday

Hopefully these people get the bonus they deserve!


About The Author

Suprotim Agarwal, ASP.NET Architecture MVP works as an Architect Consultant and provides consultancy on how to design and develop Web applications.

Suprotim is also the founder and primary contributor to DevCurry, DotNetCurry and SQLServerCurry. He has also written an EBook 51 Recipes using jQuery with ASP.NET Controls.

Follow him on twitter @suprotimagarwal

3 comments:

Shashi M said...

Nice query! Can I group these dates together for eg- the ones that fall one after the other. An example would be

April 2 to April 3
April 7 to April 7
April 15 to April 17

and so on...

Suprotim Agarwal said...

Shashi: Yes you can. Infact I like your question. I will post the answer in the form of a post today. Hang on!

Suprotim Agarwal said...

Shashi: Here's your answer.

Create Date Ranges for Consecutive dates in a SQL Server Table

I hope this is what you were asking