change column names mssql
--The following example renames the column TerritoryID in the table Sales.SalesTerritory to TerrID in the AdventureWorks database. EXEC sp_rename 'Sales.SalesTerritory.TerritoryID', 'TerrID', 'COLUMN';
sql alter column name sql server
EXEC sp_RENAME 'table_name.oldColumn_name' , 'newColumn_name', 'COLUMN'
Source: stackoverflow.com