SQLServer 更新数据

UPDATE [lidihuo].[dbo].[STUDENT]
   SET [ID] = <ID, nchar(10),>
      ,[NAME] = <NAME, nchar(10),>
      ,[AGE] = <AGE, nchar(10),>
      ,[SALARY] = <SALARY, nchar(10),>
 WHERE <Search Conditions,,>
GO

UPDATE [lidihuo].[dbo].[STUDENT]
   SET [ID] = 4,[NAME] = 'Malvika',[AGE] = 18,[SALARY] = 22000
 WHERE ID =2;
GO