handle Null in sql server

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Concat Function in SQL Server

When i add null with any data type either it is int , varchar , char , nvarchar , It re return the null values always , my query is that instead of null value i want the result excluding the null values for example

So i need a query which will return the result without null value

1st - Select Convert(nvarchar(20) , 1) + Null
Output = Null

My required result 1

2nd - Select 'A' + null
Null

My required result should be A instead of Null

Posted 14-Oct-12 5:36am

lalitkr

Updated 14-Oct-12 5:44am

Maciej Los

v2

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[no name] 14-Oct-12 11:39am

Okay so use IS NOT NULL to exclude nulls from your results.

2 solutions

Solution 1

Have a look at these functions: COALESCE[^] and ISNULL[^]

Posted 14-Oct-12 5:45am

Maciej Los

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Sandeep Mewara 14-Oct-12 14:12pm

My 5!

Maciej Los 14-Oct-12 15:33pm

Thank you, Sandeep.

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lalitkr · Accepted Answer · 2012-10-19T08:14:00

Solution 4

SQL

Use the Concept of the following line

SET CONCAT_NULL_YIELDS_NULL OFF;

Select  query

SET CONCAT_NULL_YIELDS_NULL ON;







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Posted 19-Oct-12 8:14am

lalitkr