How can calculate amount using T-SQL

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SQL-Server-2008R2

How can calculate amount such that:
amount = (current date - end date) * 2
How to write code in SQL to achieve the same.

Posted 1-Jan-15 23:55pm

krishna97

Updated 2-Jan-15 0:05am

Snesh Prajapati

v2

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Snesh Prajapati 2-Jan-15 6:06am

Hi krisna...I have updated the question...please check if you need the same only...or make it more clear. Thanks.

krishna97 2-Jan-15 6:10am

SELECT DATEDIFF(day, GETDATE(), ReturnDate)*(select FineLimt from tbl_LibryMemberCategory)

from tbl_LibraryBookIssue

this query used

krishna97 2-Jan-15 6:11am

find out day and multiply by this table select FineLimt from tbl_LibryMemberCategory

Snesh Prajapati 2-Jan-15 6:13am

Is that all working fine now ? or what is error now ?

krishna97 2-Jan-15 6:16am

out put can not given for this query

Snesh Prajapati 2-Jan-15 6:21am

Select (DATEDIFF(day, GETDATE(), ReturnDate) * (select top (1) FineLimit from tbl_LibryMemberCategory))

Snesh Prajapati 2-Jan-15 6:22am

It seems "FineLimt" spelling is wrong....first try small select queries then combine them...Check for if any CASTING needed. Thanks.

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OriginalGriff · Answer 1 · 2015-01-02T00:11:00

Solution 1

Try

SQL

SELECT DATEDIFF(d, GETDATE(), endDate) * 2 AS [Days times 2] FROM MyTable

Posted 2-Jan-15 0:11am

OriginalGriff

Snesh Prajapati · Answer 2 · 2015-01-02T00:11:00

Solution 2

Following code will do that:

SQL

DATEDIFF(day,endDate,currentDate) * 2

If needed you can write an "if" confition to check whether output of above code is positive integer or not.
For more: http://msdn.microsoft.com/en-IN/library/ms189794.aspx[^]

Thanks.

Posted 2-Jan-15 0:11am

Snesh Prajapati

Updated 2-Jan-15 0:17am

v3