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MS SQLSERVER 中如何得到表的创建语句

 2008-11-19 11:13:31 来源:WEB开发网   
核心提示: SQLSERVER6.5下的代码create procedure SP_GET_TABLE_INFO@ObjName varchar(128) /**//* The table to generate sql script */asdeclare @Script varchar(255)d

SQLSERVER6.5下的代码

create procedure SP_GET_TABLE_INFO
@ObjName varchar(128)    /**//* The table to generate sql script */
as
declare @Script varchar(255)
declare @ColName varchar(30)
declare @ColID  TinyInt
declare @UserType smallint
declare @TypeName sysname
declare @Length  TinyInt
declare @Prec   TinyInt
declare @Scale  TinyInt
declare @Status  TinyInt
declare @cDefault int
declare @DefaultID TinyInt
declare @Const_Key varchar(255)
declare @IndID   SmallInt
declare @IndStatus SmallInt
declare @Index_Key varchar(255)
declare @Segment  SmallInt
declare @DBName  varchar(30)
declare @strPri_Key varchar (255)
/**//*
** Check to see the the table exists and initialize @objid.
*/
if not Exists(Select name from sysobjects where name = @ObjName)
begin
 select @DBName = db_name()
  raiserror(15009,-1,-1,@ObjName,@DBName)
  return (1)
end
create table #spscript
(
  id   int IDENTITY not null,
  Script Varchar(255) NOT NULL,
  LastLine tinyint
)
declare Cursor_Column INSENSITIVE CURSOR
 for Select a.name,a.ColID,a.usertype,b.name,a.length,a.prec,a.scale,a.Status, a.cDefault,
    case a.cdefault when 0 then ' ' else (select case c.text when "(' ')" then "('')" else c.text end
    from syscomments c where a.cdefault = c.id) end const_key
    from syscolumns a, systypes b where object_name(a.id) = @ObjName
    and a.usertype = b.usertype order by a.ColID
set nocount on
Select @Script = 'Create table ' + @ObjName + '('
Insert into #spscript values(@Script,0)
/**//* Get column information */
open Cursor_Column
fetch next from Cursor_Column into @ColName,@ColID,@UserType,@TypeName,@Length,@Prec,@Scale,
   @Status,@cDefault,@Const_Key
Select @Script = ''
while (@@FETCH_STATUS <> -1)
begin
 if (@@FETCH_STATUS <> -2)
 begin
  Select @Script = @ColName + ' ' + @TypeName
  if @UserType in (1,2,3,4)
   Select @Script = @Script + '(' + Convert(char(3),@Length) + ') '
  else if @UserType in (24)
   Select @Script = @Script + '(' + Convert(char(3),@Prec) + ','
           + Convert(char(3),@Scale) + ') '
  else
   Select @Script = @Script + ' '
  if ( @Status & 0x80 ) > 0
   Select @Script = @Script + ' IDENTITY(1,1) '
  if ( @Status & 0x08 ) > 0
   Select @Script = @Script + ' NULL '
  else
   Select @Script = @Script + ' NOT NULL '
  if @cDefault > 0
   Select @Script = @Script + ' DEFAULT ' + @Const_Key
 end
 fetch next from Cursor_Column into @ColName,@ColID,@UserType,@TypeName,@Length,@Prec,@Scale,
   @Status,@cDefault,@Const_Key
 if @@FETCH_STATUS = 0
 begin
  Select @Script = @Script + ','
  Insert into #spscript values(@Script,0)
 end
 else
 begin
  Insert into #spscript values(@Script,1)
  Insert into #spscript values(')',0)
 end
end
Close Cursor_Column
Deallocate Cursor_Column
/**//* Get index information */
Declare Cursor_Index INSENSITIVE CURSOR
 for Select name,IndID,status,Segment from sysindexes where object_name(id)=@ObjName
       and IndID > 0 and IndID<>255 order by IndID
Open Cursor_Index
Fetch Next from Cursor_Index into @ColName, @IndID, @IndStatus, @Segment
while (@@FETCH_STATUS <> -1)
begin
 if @@FETCH_STATUS <> -2
 begin
  declare @i TinyInt
  declare @thiskey varchar(50)
  declare @IndDesc varchar(68) /**//* string to build up index desc in */
  Select @i = 1
  while (@i <= 16)
  begin
   select @thiskey = index_col(@ObjName, @IndID, @i)
   if @thiskey is null
    break
   if @i = 1
    select @Index_Key = index_col(@ObjName, @IndID, @i)
   else
    select @Index_Key = @Index_Key + ', ' + index_col(@ObjName, @IndID, @i)
   select @i = @i + 1
  end
  if (@IndStatus & 0x02) > 0
   Select @Script = 'Create unique '
  else
   Select @Script = 'Create '
  if @IndID = 1
   select @Script = @Script + ' clustered '
  if (@IndStatus & 0x800) > 0
   select @strPri_Key = ' PRIMARY KEY (' + @Index_Key + ')'
  else
   select @strPri_Key = ''
  if @IndID > 1
   select @Script = @Script + ' nonclustered '
  Select @Script = @Script + ' index ' + @ColName + ' ON '+ @ObjName
      + '(' + @Index_Key + ')'
  Select @IndDesc = ''
  /**//*
** See if the index is ignore_dupkey (0x01).
  */
  if @IndStatus & 0x01 = 0x01
   Select @IndDesc = @IndDesc + ' IGNORE_DUP_KEY' + ','
  /**//*
   ** See if the index is ignore_dup_row (0x04).
  */
  if @IndStatus & 0x04 = 0x04
   Select @IndDesc = @IndDesc + ' IGNORE_DUP_ROW' + ','
  /**//*
** See if the index is allow_dup_row (0x40).
  */
  if @IndStatus & 0x40 = 0x40
   Select @IndDesc = @IndDesc + ' ALLOW_DUP_ROW' + ','
  if @IndDesc <> ''
  begin
   Select @IndDesc = SubString( @IndDesc, 1, DataLength(@IndDesc) - 1 )
   Select @Script = @Script + ' WITH ' + @IndDesc
  end
  /**//*
** Add the location of the data.
  */
  if @Segment <> 1
   select @Script = @Script + ' ON ' + name
 from syssegments
 where segment = @Segment
 end
 if (@strPri_Key = '')
  Insert into #spscript values(@Script,0)
 else
  update #spscript set Script = Script + @strPri_Key where LastLine = 1
 Fetch Next from Cursor_Index into @ColName, @IndID, @IndStatus, @Segment
end
Close Cursor_Index
Deallocate Cursor_Index
Select Script from #spscript order by id
set nocount off
return (0)

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Tags:MS SQLSERVER 如何

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