Global variable names begin with an @@ prefix. : Variable « Transact SQL « SQL Server / T-SQL Tutorial

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SQL Server / T-SQL Tutorial » Transact SQL » Variable

20. 2. 5. Global variable names begin with an @@ prefix.


5> Create table Eq (EqId int identity(1,1),

6>                 Make varchar(50),

7>                 Model varchar(50),

8>                 EqTypeId int)

9> GO

1>

2> Declare @intEqId int

3>      Insert into Eq(Make, Model, EqTypeId)

4>      Values ('ACME', 'Turbo', 2)

5>      Select @intEqId = @@identity

6> GO



(1 rows affected)

1>

2>

3>

4> drop table Eq;

5> GO

1>

20. 2. Variable
	20. 2. 1.	Working with Variables
	20. 2. 2.	Use right function with a variable
	20. 2. 3.	Testing the ISNULL function
	20. 2. 4.	SELECT LEFT(@FullName, 5)
	20. 2. 5.	Global variable names begin with an @@ prefix.
	20. 2. 6.	XML type variable
	20. 2. 7.	Varchar type variable
	20. 2. 8.	Use if statement to check a variable
	20. 2. 9.	A variable can be assigned a value from a subquery
	20. 2. 10.	Use aggregate function with variables
	20. 2. 11.	Use Local Variables in where clause
	20. 2. 12.	A SQL script that uses variables
	20. 2. 13.	Local variables used for searches
	20. 2. 14.	Pass variable to a user-defined function
	20. 2. 15.	Use one variables in like function

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