计算机三级数据库SQL语句大全(3)_第2页

考试站(www.examzz.com)   【考试站:中国教育考试第一门户】   2011年11月10日
     8、说明:更改某个表

  exec sp_changeobjectowner 'tablename','dbo'

  9、存储更改全部表

  CREATE PROCEDURE dbo.User_ChangeObjectOwnerBatch

  @OldOwner as NVARCHAR(128),

  @NewOwner as NVARCHAR(128)

  AS

  DECLARE @Name as NVARCHAR(128)

  DECLARE @Owner as NVARCHAR(128)

  DECLARE @OwnerName as NVARCHAR(128)

  DECLARE curObject CURSOR FOR

  select 'Name' = name,

  'Owner' = user_name(uid)

  from sysobjects

  where user_name(uid)=@OldOwner

  order by name

  OPEN curObject

  FETCH NEXT FROM curObject INTO @Name, @Owner

  WHILE(@@FETCH_STATUS=0)

  BEGIN

  if @Owner=@OldOwner

  begin

  set @OwnerName = @OldOwner + '.' + rtrim(@Name)

  exec sp_changeobjectowner @OwnerName, @NewOwner

  end

  -- select @name,@NewOwner,@OldOwner

  FETCH NEXT FROM curObject INTO @Name, @Owner

  END

  close curObject

  deallocate curObject

  GO

  10、SQL SERVER中直接循环写入数据

  declare @i int

  set @i=1

  while @i<30

  begin

  insert into test (userid) values(@i)

  set @i=@i+1

  end

  案例:

  有如下表,要求就表中所有没有及格的成绩,在每次增长0.1的基础上,使他们刚好及格:

  Name score

  Zhangshan 80

  Lishi 59

  Wangwu 50

  Songquan 69

  while((select min(score) from tb_table)<60)

  begin

  update tb_table set score =score*1.01

  where score<60

  if (select min(score) from tb_table)>60

  break

  else

  continue

  end


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