有烟没火 发表于 2009-1-8 11:11:17

将表数据生成SQL脚本的存储过程

  将表数据生成SQL脚本的存储过程:
  
  CREATE PROCEDURE dbo.UspOutputData
  @tablename sysname
  AS
  declare @column varchar(1000)
  declare @columndata varchar(1000)
  declare @sql varchar(4000)
  declare @xtype tinyint
  declare @name sysname
  declare @objectId int
  declare @objectname sysname
  declare @ident int
  
  set nocount on
  set @objectId=object_id(@tablename)
  
  if @objectId is null -- 判斷對象是否存在
  begin
  print 'The object not exists'
  return
  end
  set @objectname=rtrim(object_name(@objectId))
  
  if @objectname is null or charindex(@objectname,@tablename)=0 --此判断不严密
  begin
  print 'object not in current database'
  return
  end
  
  if OBJECTPROPERTY(@objectId,'IsTable') < > 1 -- 判斷對象是否是table
  begin
  print 'The object is not table'
  return
  end
  
  select @ident=status&0x80 from syscolumns where id=@objectid and status&0x80=0x80
  
  if @ident is not null
  print 'SET IDENTITY_INSERT ' @TableName ' ON'
  
  declare syscolumns_cursor cursor
  
  for select c.name,c.xtype from syscolumns c where c.id=@objectid order by c.colid
  
  open syscolumns_cursor
  set @column=''
  set @columndata=''
  fetch next from syscolumns_cursor into @name,@xtype
  
  while @@fetch_status < >-1
  begin
  if @@fetch_status < >-2
  begin
  if @xtype not in(189,34,35,99,98) --timestamp不需处理,image,text,ntext,sql_variant 暂时不处理
  
  begin
  set @column=@column case when len(@column)=0 then'' else ','end @name
  
  set @columndata=@columndata case when len(@columndata)=0 then '' else ','','','
  end
  
   case when @xtype in(167,175) then ''''''''' ' @name ' ''''''''' --varchar,char
  when @xtype in(231,239) then '''N'''''' ' @name ' ''''''''' --nvarchar,nchar
  when @xtype=61 then ''''''''' convert(char(23),' @name ',121) ''''''''' --datetime
  when @xtype=58 then ''''''''' convert(char(16),' @name ',120) ''''''''' --smalldatetime
  when @xtype=36 then ''''''''' convert(char(36),' @name ') ''''''''' --uniqueidentifier
  else @name end
  
  end
  
  end
  
  fetch next from syscolumns_cursor into @name,@xtype
  
  end
  
  close syscolumns_cursor
  deallocate syscolumns_cursor
  
  set @sql='set nocount on select ''insert ' @tablename '(' @column ') values(''as ''--'',' @columndata ','')'' from ' @tablename
  
  print '--' @sql
  exec(@sql)
  
  if @ident is not null
  print 'SET IDENTITY_INSERT ' @TableName ' OFF'
  
  GO
  
  exec UspOutputData 你的表名 <
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