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Can we use variable in SQL view?
You can’t declare variables in a view. Could you make it into a function or stored procedure? Edit – you might also be able to put something into a CTE (Common Table Expression) and keep it as a view.
Can we use with clause in view in SQL Server?
There is no ‘;with’ clause. Although you will often see developers add a semicolon before WITH as a kudge, the requirement is that the statement before the WITH (and some other newer statements) be terminated with a semicolon. There is no preceeding statement in your view so just omit the semicolon like Jeff’s example.
Can you pass a parameter to a view?
Unfortunately, neither can be done using a view. Or you can do pretty much the same thing but create a stored procedure instead of a user defined function.
Can we use CTE in view?
A Common Table Expression, also called as CTE in short form, is a temporary named result set that you can reference within a SELECT, INSERT, UPDATE, or DELETE statement. The CTE can also be used in a View.
How do you SET a variable in SQL query?
Setting a Value in a Transact-SQL Variable To assign a value to a variable, use the SET statement. This is the preferred method of assigning a value to a variable. A variable can also have a value assigned by being referenced in the select list of a SELECT statement.
Why with is used in SQL?
The SQL WITH clause allows you to give a sub-query block a name (a process also called sub-query refactoring), which can be referenced in several places within the main SQL query. The SQL WITH clause was introduced by Oracle in the Oracle 9i release 2 database.
Can we pass parameter to view in MySQL?
No can do. At least not directly. Use a procedure that populates a temporary table and reference the table in your code. A functional alternative would be to encapsulate the view query in a procedure, with parameter passing.
Is it possible to set variable inside a view in SQL Server?
Even if you could, you wouldn’t want to. A variable like this can only store one varchar (20) value. Without an “order by” and top statement you would either get an error or a non-deterministic value unless your table happens to only have a single record. You can easily fake a variable in your view using CTE.
Do you need to declare variables in a view?
It does not make sense for a view’s structure to be dependent on variables. Instead you need to make @wkFileYear and @wkFileSemester columns in your view that you can query against. Alternatively you could create a db function / stored procedure which returns the data you need, if you want to use variables.
How to declare a variable in SQL Server?
CREATE VIEW [AQB_OB]. [GISREQUESTEDBURNS] AS (DECLARE @CONDITIONS AS varchar(20) SET @CONDITIONS = (SELECT DISTINCT BD. [RequestedBurnsID] , [ConditionsReasonsID] = STUFF( (SELECT ‘, ‘ + CONVERT(VARCHAR (20), [ConditionsReasonsID]) FROM [AQB_OB]. [BurnDecisions] WHERE [RequestedBurnsID]= BD.
Are there any global variables in SQL Server?
Although in earlier versions of SQL Server, the @@functions are referred to as global variables, they are not variables and do not have the same behaviors as variables. The @@functions are system functions, and their syntax usage follows the rules for functions.