I have a DB where ID is bigint and auto incremented identity column.Works fine but suddenly it rises and starts from specific number ?
i want to know why it is happening and how can i continue the increment from 152 again ????
This is all perfectly normal. Microsoft added sequences in SQL Server 2012, finally, i might add and changed the way identity keys are generated. Have a look here for some explanation.
If you want to have the old behaviour, you can:
1- use trace flag 272 - this will cause a log record to be generated for each generated identity value. The performance of identity generation may be impacted by turning on this trace flag.
2- use a sequence generator with the NO CACHE setting (http://msdn.microsoft.com/en-us/library/ff878091.aspx)