RENAME ALL COLUMNS IN DB SQL SERVER code example
Example 1: 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';
Example 2: change name of colum in sql table
ALTER TABLE "table_name" RENAME COLUMN "column 1" TO "column 2";