Now you explicitly enter a value for Identity column : IDENTITY « Sequence « SQL Server / T-SQL






  1. SQL Server / T-SQL
  2. Sequence
  3. IDENTITY

Now you explicitly enter a value for Identity column


1>
2> CREATE TABLE MyTable (MyID Int IDENTITY(1, 10) NOT NULL
3>                       , MyDescription nVarChar(50) NOT NULL)
4>
5>
6> INSERT MyTable (MyDescription) VALUES ('Auto Record 1')
7> INSERT MyTable (MyDescription) VALUES ('Auto Record 2')
8>
9>
10> -- Now you explicitly enter a MyID value with the following script:
11>
12> SET IDENTITY_INSERT MyTable ON INSERT MyTable (MyID, MyDescription)
13> VALUES (5, 'Manual Record 1') SET IDENTITY_INSERT MyTable OFF
14>
15> select * from MyTable
16> GO

(1 rows affected)

(1 rows affected)

(1 rows affected)
MyID        MyDescription
----------- --------------------------------------------------
          1 Auto Record 1
         11 Auto Record 2
          5 Manual Record 1

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








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2.Identity starting with -1000000
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4.SQL Server does not allow explicit values to be inserted into it
5.Using Identity during data insert
6.Using IDENTITY value
7.Get current IDENTITY value
8.Seed value was negative and the increment was positive
9.Created with an IDENTITY property that is set to start at 1,000,000 and decrement by 100 for every row added
10.IDENTITY [ (seed , increment ) ]
11.IDENTITY as PRIMARY KEY