Declares a local variable (@intvar) and then assigns a value to the variable : Declare Variables « Transact SQL « SQL Server / T-SQL

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SQL Server / T-SQL » Transact SQL » Declare Variables 
Declares a local variable (@intvar) and then assigns a value to the variable

1create table employee(
2>     ID          int,
3>     name        nvarchar (10),
4>     salary      int,
5>     start_date  datetime,
6>     city        nvarchar (10),
7>     region      char (1))
8> GO
1>
2insert into employee (ID, name,    salary, start_date, city,       region)
3>               values (1,  'Jason', 40420,  '02/01/94', 'New York', 'W')
4> GO

(rows affected)
1insert into employee (ID, name,    salary, start_date, city,       region)
2>               values (2,  'Robert',14420,  '01/02/95', 'Vancouver','N')
3> GO

(rows affected)
1insert into employee (ID, name,    salary, start_date, city,       region)
2>               values (3,  'Celia', 24020,  '12/03/96', 'Toronto',  'W')
3> GO

(rows affected)
1insert into employee (ID, name,    salary, start_date, city,       region)
2>               values (4,  'Linda', 40620,  '11/04/97', 'New York', 'N')
3> GO

(rows affected)
1insert into employee (ID, name,    salary, start_date, city,       region)
2>               values (5,  'David', 80026,  '10/05/98', 'Vancouver','W')
3> GO

(rows affected)
1insert into employee (ID, name,    salary, start_date, city,       region)
2>               values (6,  'James', 70060,  '09/06/99', 'Toronto',  'N')
3> GO

(rows affected)
1insert into employee (ID, name,    salary, start_date, city,       region)
2>               values (7,  'Alison',90620,  '08/07/00', 'New York', 'W')
3> GO

(rows affected)
1insert into employee (ID, name,    salary, start_date, city,       region)
2>               values (8,  'Chris', 26020,  '07/08/01', 'Vancouver','N')
3> GO

(rows affected)
1insert into employee (ID, name,    salary, start_date, city,       region)
2>               values (9,  'Mary',  60020,  '06/09/02', 'Toronto',  'W')
3> GO

(rows affected)
1>
2select from employee
3> GO
ID          name       salary      start_date              city       region
----------- ---------- ----------- ----------------------- ---------- ------
          Jason            40420 1994-02-01 00:00:00.000 New York   W
          Robert           14420 1995-01-02 00:00:00.000 Vancouver  N
          Celia            24020 1996-12-03 00:00:00.000 Toronto    W
          Linda            40620 1997-11-04 00:00:00.000 New York   N
          David            80026 1998-10-05 00:00:00.000 Vancouver  W
          James            70060 1999-09-06 00:00:00.000 Toronto    N
          Alison           90620 2000-08-07 00:00:00.000 New York   W
          Chris            26020 2001-07-08 00:00:00.000 Vancouver  N
          Mary             60020 2002-06-09 00:00:00.000 Toronto    W

(rows affected)
1>
2> --Declares a local variable (@intvarand then assigns a value to the variable.
3>
4> DECLARE @intvar int
5> SET @intvar = 1
6>
7SELECT ID, Name 'Employee name',
8>     @intvar 'Local variable'
9FROM Employee
10> GO
ID          Employee name Local variable
----------- ------------- --------------
          Jason                      1
          Robert                     1
          Celia                      1
          Linda                      1
          David                      1
          James                      1
          Alison                     1
          Chris                      1
          Mary                       1

(rows affected)
1>
2> drop table employee
3> GO
1>

           
       
Related examples in the same category
1. Declare a varchar variable
2. Declare a variable
3. Use declared variable in SQL statement
4. Table Variables
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