if variable is null sql

using sql server Inside a function I need to check to see if a variable val...

using sql server Inside a function I need to check to see if a variable value is null, how to do this? I implemented the code but its not.

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Use IS NULL to check instead, e.g.: IF (@start IS NULL) SET @start = '...

Use IS NULL to check instead, e.g.: IF (@start IS NULL) SET @start = ''. Or, in one line: SET @start = ISNULL(@start, '').

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Use a T-SQL IF: IF @ABC IS NOT NULL AND @ABC!= -1 UPDATE [TABLE_NAME] SET X...

Use a T-SQL IF: IF @ABC IS NOT NULL AND @ABC!= -1 UPDATE [TABLE_NAME] SET XYZ=@ABC. Take a look at the MSDN docs.

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is an empty string in SQL Server. If you want to use a parameter is Optiona...

is an empty string in SQL Server. If you want to use a parameter is Optional so use it. CREATE To check if variable is null or empty use this.

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Anyway in SQL Server there is not a such function but you can create your o...

Anyway in SQL Server there is not a such function but you can create your own: CREATE To check if variable is null or empty use this.

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SELECT * FROM PhoneNumber WHERE PhoneNo = @PhoneNo UNION What do you want t...

SELECT * FROM PhoneNumber WHERE PhoneNo = @PhoneNo UNION What do you want to achieve, if the passed in variable is NULL?

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SELECT ProductID, ProductName,ProductDesc FROM product WHERE ProductID = CA...

SELECT ProductID, ProductName,ProductDesc FROM product WHERE ProductID = CASE WHEN @productID IS NULL THEN ProductID ELSE.

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If its a variable, then it shouldn't matter. If you are doing a simila...

If its a variable, then it shouldn't matter. If you are doing a similar filter on a column of a table, then I would recommend: WHERE Column IS NOT.

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Yes, that code does exactly that. You can also use: if (@value is null or @...

Yes, that code does exactly that. You can also use: if (@value is null or @value = ''). Edit: With the added information that @value is an int value.

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Try this if (@name is null or @value = '') //it will indicate whe...

Try this if (@name is null or @value = '') //it will indicate whether it contains a value or not.

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Local Variable DECLARE Syntax, are different variables. 1 DAY); END IF; SEL...

Local Variable DECLARE Syntax, are different variables. 1 DAY); END IF; SELECT last_run_time; -- Insert variables in table2 INSERT INTO.

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Use IF @DefaultID IS NULL. Instead of IF @DefaultID ='' NULL and ...

Use IF @DefaultID IS NULL. Instead of IF @DefaultID ='' NULL and '' are two different things.

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COALESCE is your friend. It returns its first non-NULL argument. I'm n...

COALESCE is your friend. It returns its first non-NULL argument. I'm not actually sure from your narrative which way around you want things.

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Dear Frnds, I want to check a particular variable in which i m getting a va...

Dear Frnds, I want to check a particular variable in which i m getting a value null by using If Condition. Please ellaborate by an example.

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If the SELECT statement returns more than one value, the variable is is a s...

If the SELECT statement returns more than one value, the variable is is a scalar subquery that returns no value, the variable is set to NULL.

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