Query regarding sql server [Resolved]

Posted by Sriharim under Sql Server on 2/6/2015 | Points: 10 | Views : 1055 | Status : [Member] | Replies : 6

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HI Team,
I have attended interview and below query output i din't understand.

In general, 1/2 and 1/2.0 is 0.50000 But in sql server i am getting different output:

1) output of :select 1/2 is 0
2) output of :select 1/2.0 is 0.50000

can please explain, why output is differenct and how the sql treats above 2 queries, how it works ?

Mark as Answer if its helpful to you
---
Srihari

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Posted by: Bandi on: 2/6/2015 [Member] [MVP] Platinum | Points: 50

0	In SQL Server, the result from division of two integers is INTEGER; whereas if any one of the operands of Division is DECIMAL, then it results DECIMAL value.... 1/2 --> Here, the two operands 1, 2 are integers, so the result truncates the decimal value.... this way, it results 0 1/2.0 ( or 1.0/2) --> Here, one of the operand is DECIMAL, so the result doesn't truncate the DECIMAL scaling value.... In this way, it results 0.500000 Even if both operands are DECIMALS, it results DECIMAL value ( 0.500000 ) Mark This Response as Answer -- Chandu http://www.dotnetfunda.com/images/dnfmvp.gif Sriharim, if this helps please login to Mark As Answer. \| Alert Moderator

In SQL Server, the result from division of two integers is INTEGER; whereas if any one of the operands of Division is DECIMAL, then it results DECIMAL value....

1/2 --> Here, the two operands 1, 2 are integers, so the result truncates the decimal value.... this way, it results 0

1/2.0 ( or 1.0/2) --> Here, one of the operand is DECIMAL, so the result doesn't truncate the DECIMAL scaling value.... In this way, it results 0.500000

Even if both operands are DECIMALS, it results DECIMAL value ( 0.500000 )

Mark This Response as Answer
--
Chandu
http://www.dotnetfunda.com/images/dnfmvp.gif

Sriharim, if this helps please login to Mark As Answer. | Alert Moderator

Posted by: Bandi on: 2/6/2015 [Member] [MVP] Platinum | Points: 50

0	refer https://social.msdn.microsoft.com/Forums/sqlserver/en-US/4cf91f5a-9c22-451a-8811-dc6621fe365f/how-to-get-values-with-decimals-when-dividing-2-integers-in-tsql Mark This Response as Answer -- Chandu http://www.dotnetfunda.com/images/dnfmvp.gif Sriharim, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Bandi on: 2/9/2015 [Member] [MVP] Platinum | Points: 50

0	updated above post....... Mark This Response as Answer -- Chandu http://www.dotnetfunda.com/images/dnfmvp.gif Sriharim, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Sriharim on: 2/8/2015 [Member] Starter | Points: 25

0	Hi This link is not working. Please update it. Mark as Answer if its helpful to you --- Srihari Sriharim, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Sriharim on: 2/24/2015 [Member] Starter | Points: 25

0	Hi Please help to resolve another question and please click below link for question http://www.dotnetfunda.com/forums/show/19341/how-to-create-flat-files-dynamically-in-ssis?com=updatedquestion Mark as Answer if its helpful to you --- Srihari Sriharim, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Bandi on: 2/24/2015 [Member] [MVP] Platinum | Points: 25

0	Hi, Check those posts, I have posted for SSIS package requirements Mark This Response as Answer -- Chandu http://www.dotnetfunda.com/images/dnfmvp.gif Sriharim, if this helps please login to Mark As Answer. \| Alert Moderator

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