Menu
I have this sql,
IF(@ID = '')
BEGIN
SET @ID = NULL;
END
IF(@Name = '')
BEGIN
SET @Name = NULL;
END
IF(@PhoneNumber = '')
BEGIN
SET @PhoneNumber = NULL;
END
IF(@Price = '')
BEGIN
SET @Price = NULL;
END
IF(@NewPrice = '')
BEGIN
SET @NewPrice = NULL;
END
IF(@ModelNumber = '')
BEGIN
SET @ModelNumber = NULL;
END
IF(@SKU = '')
BEGIN
SET @SKU = NULL;
END
I am looking IsEmpty function like ISNULL. So that I can,
ISEMPTY(@SKU, NULL)
Is this is possible in SQL.
596
advantage that COALESCE has over ISNULL is that it supports more than two inputs, whereas ISNULL supports only two. Another advantage of COALESCE is that it's a standard function (namely, defined by the ISO/ANSI SQL standards), whereas ISNULL is T-SQL–specific.
The IsEmpty function returns true if the evaluated expression is an empty cell value. Otherwise, this function returns false. The default property for a member is the value of the member.
ISNULL( ) function replaces the Null value with placed value. The use of ISNULL ( ) function is very common in different situations such as changing the Null value to some value in Joins, in Select statement etc. NULLIF ( ) function returns us Null if two arguments passed to functions are equal.
The IsNullOrEmpty () is a user defined function which is used to check the given variable is null or empty. Create the user defined function IsNullOrEmpty () in SQL Server CREATEFUNCTION [dbo]. [IsNullOrEmpty] (@MyValue VARCHAR(MAX)) The above IsNullOrEmpty () function will accepts the string value.
The ISNULL () function returns a specified value if the expression is NULL. If the expression is NOT NULL, this function returns the expression. Required. The expression to test whether is NULL Required. The value to return if expression is NULL
SQL Server provides 2 functions for doing this; (i) the ISNULL; and (ii) the COALESCE. (1) ISNULL takes only two parameters as input; (a) the expression to be checked and (b) the replacement value (2) COALESCE takes N parameters as input ( N>=2 ). By having N expressions as input parameters it returns the first expression that IS NOT NULL.
HandleISNULL WHERE DefaultTask IS NULL SELECT * FROM OnkarSharma.. HandleISNULL WHERE DefaultTask IS NOT NULL The ISNULL () returns a specified replacement value if the expression is NULL. It replaces NULL with the specified replacement value if the expression is NULL. ISNULL () takes only two parameters. ISNULL () is Microsoft SQL Server-specific.
Try NULLIF as below
NULLIF(@SKU,'')
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
