Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Suganya jagath
EXECUTE sp_rename 'Sales.SalesTerritory.TerritoryID', 'TerrID', 'COLUMN'; There are few operations that you can do inplace without dropping your table: Expand a varchar column Make a column nullable (but not vice-versa) Renaming columns using sp_rename If you find yourself in the situation where altering a column is not possible without dropping the table, you can usually use a SELECT INTO query to project your data into a new table, then drop the old table (temporarily disabling constraints) and then renaming the projected table. You will need to take your database offline for maintenance in this case though. Hope you understand.