SQL Server - integer IDENTITY runs out of scope - Feb 27,
2010 at 11:50 AM by Shuchi Gauri
What happens when my integer IDENTITY runs out of scope?
SQL Server does not start all over again or try to fill the existing gaps in the
sequence if IDENTITY runs out of scope. The user needs to explicitly handle
such a situation. One solution is to alter the data type of the column to
BIGINT or DECIMAL(38,0)
SQL Server - integer IDENTITY runs out of scope - May 05,
2009 at 22:00 PM by Rajmeet Ghai
What happens when my integer IDENTITY runs out of scope?
An integer data type can have a variety of IDENTITY values like int, bigint,
tinyint etc.
To avoid the integer IDENTITY to run out of scope, BIGINT should be used as the
data type or DECIMAL (38,0)
CREATE TABLE sample_t ( col1 BIGINT IDENTITY(-9223372036854775808, 1) )
SQL Server - integer IDENTITY runs out of scope - June 21,
2009 at 09:00 AM by Amit Satpute
What happens when my integer IDENTITY runs out of scope?
The range you get when the IDENTITY property on columns of the INT data type and
on DECIMAL with scale 0 are defined is:
TINYINT
0 – 255
SMALLINT -32.768 –
32.767
INT
-2.147.483.648 - 2.147.483.647
BIGINT -2^63
- 2^63-1
DECIMAL
-10^38 to 10^38-1
When an INTEGER IDENTITY value is about to run out of scope an Arithmetic
overflow error converting IDENTITY to data type int. is thrown.
EXAMPLE:
CREATE TABLE XYZ (col1 INT IDENTITY(2147483647,1))
GO
INSERT INTO XYZ DEFAULT VALUES INSERT INTO XYZ DEFAULT VALUES SELECT * FROM XYZ
DROP TABLE XYZ
Result:
(1 row(s) affected) Server: Msg 8115, Level 16, State 1, Line 2 Arithmetic
overflow error converting IDENTITY to data type int. Arithmetic overflow
occurred.
Also read
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contains unique system generated value in the table. Column with identity
property is similar to AutoNumber field in MS Access....
An integer data type can have a variety of IDENTITY values like int, bigint,
tinyint etc. .........
Answer - Shared Lock allows simultaneous
access of record by multiple Select statements. Shared Lock blocks record from
updating and will remain in queue waiting while record is accessed for
reading......
Answer - SQL Server database stores information in a two
dimensional objects of rows and columns called table......
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