troubleshooting Question

auto incriment

Avatar of m_sudhakar
m_sudhakar asked on
Microsoft SQL Server
7 Comments1 Solution357 ViewsLast Modified:
Why the gaps are occurring in the IDENTITY Property field,  If the insert query fails.

For ex:
Create table JOB ( JOB_id int IDENTITY(1,1) PRIMARY KEY, JOB_Name varchar(50) UNIQUE)

Insert into JOB values (‘Manager’)
Insert it,
Insert into JOB values (‘Manager’)
And again try to insert it gives unique constraint error
Now insert
Insert into JOB values (‘Operator’)

Now check there is a JOB_ID gap between Manager, Operator.
Why this gap is coming? How should I avoid these gaps?
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