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收藏几段SQL Server语句和存储过程
 
作者：李洪根 来源：sawin.cn
 
-- ======================================================
--列出SQL SERVER 所有表，字段名，主键，类型，长度，小数位数等信息
--在查询分析器里运行即可,可以生成一个表，导出到EXCEL中
-- ======================================================
SELECT
      (case when a.colorder=1 then d.name else '' end)表名,
       a.colorder 字段序号,
       a.name 字段名,
       (case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else '' end) 标识,
       (case when (SELECT count(*)
       FROM sysobjects
       WHERE (name in
                 (SELECT name
                FROM sysindexes
                WHERE (id = a.id) AND (indid in
                          (SELECT indid
                         FROM sysindexkeys
                         WHERE (id = a.id) AND (colid in
                                   (SELECT colid
                                  FROM syscolumns
                                  WHERE (id = a.id) AND (name = a.name))))))) AND
              (xtype = 'PK'))>0 then '√' else '' end) 主键,
       b.name 类型,
       a.length 占用字节数,
       COLUMNPROPERTY(a.id,a.name,'PRECISION') as 长度,
       isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0) as 小数位数,
       (case when a.isnullable=1 then '√'else '' end) 允许空,
       isnull(e.text,'') 默认值,
       isnull(g.[value],'') AS 字段说明   
 
FROM  syscolumns  a left join systypes b
on  a.xtype=b.xusertype
inner join sysobjects d
on a.id=d.id  and  d.xtype='U' and  d.name<>'dtproperties'
left join syscomments e
on a.cdefault=e.id
left join sysproperties g
on a.id=g.id AND a.colid = g.smallid 
order by a.id,a.colorder
-------------------------------------------------------------------------------------------------
 
列出SQL SERVER 所有表、字段定义，类型，长度，一个值等信息
并导出到Excel 中
-- ======================================================
-- Export all user tables definition and one sample value
-- jan-13-2003,Dr.Zhang
-- ======================================================
在查询分析器里运行：
SET ANSI_NULLS OFF
GO
SET NOCOUNT ON
GO
 
SET LANGUAGE 'Simplified Chinese'
go
DECLARE @tbl nvarchar(200),@fld nvarchar(200),@sql nvarchar(4000),@maxlen int,@sample nvarchar(40)
 
SELECT d.name TableName,a.name FieldName,b.name TypeName,a.length Length,a.isnullable IS_NULL INTO #t
FROM  syscolumns  a,  systypes b,sysobjects d 
WHERE  a.xtype=b.xusertype  and  a.id=d.id  and  d.xtype='U'
 
DECLARE read_cursor CURSOR
FOR SELECT TableName,FieldName FROM #t
 
SELECT TOP 1 '_TableName                     ' TableName,
            'FieldName                      ' FieldName,'TypeName             ' TypeName,
            'Length' Length,'IS_NULL' IS_NULL,
            'MaxLenUsed' AS MaxLenUsed,'Sample Value          ' Sample,
             'Comment   ' Comment INTO #tc FROM #t
 
OPEN read_cursor
 
FETCH NEXT FROM read_cursor INTO @tbl,@fld
WHILE (@@fetch_status <> -1)  --- failes
BEGIN
       IF (@@fetch_status <> -2) -- Missing
       BEGIN
              SET @sql=N'SET @maxlen=(SELECT max(len(cast('+@fld+' as nvarchar))) FROM '+@tbl+')'
              --PRINT @sql
              EXEC SP_EXECUTESQL @sql,N'@maxlen int OUTPUT',@maxlen OUTPUT
              --print @maxlen
              SET @sql=N'SET @sample=(SELECT TOP 1 cast('+@fld+' as nvarchar) FROM '+@tbl+' WHERE len(cast('+@fld+' as nvarchar))='+convert(nvarchar(5),@maxlen)+')'
              EXEC SP_EXECUTESQL @sql,N'@sample varchar(30) OUTPUT',@sample OUTPUT
              --for quickly  
              --SET @sql=N'SET @sample=convert(varchar(20),(SELECT TOP 1 '+@fld+' FROM '+
                     --@tbl+' order by 1 desc ))' 
              PRINT @sql
              print @sample
              print @tbl
              EXEC SP_EXECUTESQL @sql,N'@sample nvarchar(30) OUTPUT',@sample OUTPUT
              INSERT INTO #tc SELECT *,ltrim(ISNULL(@maxlen,0)) as MaxLenUsed,
                     convert(nchar(20),ltrim(ISNULL(@sample,' '))) as Sample,' ' Comment FROM #t where TableName=@tbl and FieldName=@fld
       END
       FETCH NEXT FROM read_cursor INTO @tbl,@fld
END
 
CLOSE read_cursor
DEALLOCATE read_cursor
GO
 
SET ANSI_NULLS ON
GO
SET NOCOUNT OFF
GO
select count(*)  from #t
DROP TABLE #t
GO
 
select count(*)-1  from #tc
 
select * into ##tx from #tc order by tablename
DROP TABLE #tc
 
--select * from ##tx
 
declare @db nvarchar(60),@sql nvarchar(3000)
set @db=db_name()
--请修改用户名和口令 导出到Excel 中
set @sql='exec master.dbo.xp_cmdshell ''bcp ..dbo.##tx out c:\'+@db+'_exp.xls -w -C936 -Usa -Psa '''
print @sql
exec(@sql)
GO
DROP TABLE ##tx
GO
 
-- ======================================================
--根据表中数据生成insert语句的存储过程
--建立存储过程，执行 spGenInsertSQL 表名
--感谢playyuer
-- ======================================================
CREATE   proc spGenInsertSQL (@tablename varchar(256))
 
as
begin
  declare @sql varchar(8000)
  declare @sqlValues varchar(8000)
  set @sql =' ('
  set @sqlValues = 'values (''+'
  select @sqlValues = @sqlValues + cols + ' + '','' + ' ,@sql = @sql + '[' + name + '],'
    from
        (select case
                  when xtype in (48,52,56,59,60,62,104,106,108,122,127)                               
                       then 'case when '+ name +' is null then ''NULL'' else ' + 'cast('+ name + ' as varchar)'+' end'
                  when xtype in (58,61)
                       then 'case when '+ name +' is null then ''NULL'' else '+''''''''' + ' + 'cast('+ name +' as varchar)'+ '+'''''''''+' end'
                 when xtype in (167)
                       then 'case when '+ name +' is null then ''NULL'' else '+''''''''' + ' + 'replace('+ name+','''''''','''''''''''')' + '+'''''''''+' end'
                  when xtype in (231)
                       then 'case when '+ name +' is null then ''NULL'' else '+'''N'''''' + ' + 'replace('+ name+','''''''','''''''''''')' + '+'''''''''+' end'
                  when xtype in (175)
                       then 'case when '+ name +' is null then ''NULL'' else '+''''''''' + ' + 'cast(replace('+ name+','''''''','''''''''''') as Char(' + cast(length as varchar)  + '))+'''''''''+' end'
                  when xtype in (239)
                       then 'case when '+ name +' is null then ''NULL'' else '+'''N'''''' + ' + 'cast(replace('+ name+','''''''','''''''''''') as Char(' + cast(length as varchar)  + '))+'''''''''+' end'
                  else '''NULL'''
                end as Cols,name
           from syscolumns 
          where id = object_id(@tablename)
        ) T
  set @sql ='select ''INSERT INTO ['+ @tablename + ']' + left(@sql,len(@sql)-1)+') ' + left(@sqlValues,len(@sqlValues)-4) + ')'' from '+@tablename
  --print @sql
  exec (@sql)
end
 
GO
 
 
 
-- ======================================================
--根据表中数据生成insert语句的存储过程
--建立存储过程，执行 proc_insert 表名
--感谢Sky_blue
-- ======================================================
 
CREATE proc proc_insert (@tablename varchar(256))
as
begin
       set nocount on
       declare @sqlstr varchar(4000)
       declare @sqlstr1 varchar(4000)
       declare @sqlstr2 varchar(4000)
       select @sqlstr='select ''insert '+@tablename
       select @sqlstr1=''
       select @sqlstr2=' ('
       select @sqlstr1= ' values ( ''+'
       select @sqlstr1=@sqlstr1+col+'+'',''+' ,@sqlstr2=@sqlstr2+name +',' from (select case
--     when a.xtype =173 then 'case when '+a.name+' is null then ''NULL'' else '+'convert(varchar('+convert(varchar(4),a.length*2+2)+'),'+a.name +')'+' end'
       when a.xtype =104 then 'case when '+a.name+' is null then ''NULL'' else '+'convert(varchar(1),'+a.name +')'+' end'
       when a.xtype =175 then 'case when '+a.name+' is null then ''NULL'' else '+'''''''''+'+'replace('+a.name+','''''''','''''''''''')' + '+'''''''''+' end'
       when a.xtype =61  then 'case when '+a.name+' is null then ''NULL'' else '+'''''''''+'+'convert(varchar(23),'+a.name +',121)'+ '+'''''''''+' end'
       when a.xtype =106 then 'case when '+a.name+' is null then ''NULL'' else '+'convert(varchar('+convert(varchar(4),a.xprec+2)+'),'+a.name +')'+' end'
       when a.xtype =62  then 'case when '+a.name+' is null then ''NULL'' else '+'convert(varchar(23),'+a.name +',2)'+' end'
       when a.xtype =56  then 'case when '+a.name+' is null then ''NULL'' else '+'convert(varchar(11),'+a.name +')'+' end'
       when a.xtype =60  then 'case when '+a.name+' is null then ''NULL'' else '+'convert(varchar(22),'+a.name +')'+' end'
       when a.xtype =239 then 'case when '+a.name+' is null then ''NULL'' else '+'''''''''+'+'replace('+a.name+','''''''','''''''''''')' + '+'''''''''+' end'
       when a.xtype =108 then 'case when '+a.name+' is null then ''NULL'' else '+'convert(varchar('+convert(varchar(4),a.xprec+2)+'),'+a.name +')'+' end'
       when a.xtype =231 then 'case when '+a.name+' is null then ''NULL'' else '+'''''''''+'+'replace('+a.name+','''''''','''''''''''')' + '+'''''''''+' end'
       when a.xtype =59  then 'case when '+a.name+' is null then ''NULL'' else '+'convert(varchar(23),'+a.name +',2)'+' end'
       when a.xtype =58  then 'case when '+a.name+' is null then ''NULL'' else '+'''''''''+'+'convert(varchar(23),'+a.name +',121)'+ '+'''''''''+' end'
       when a.xtype =52  then 'case when '+a.name+' is null then ''NULL'' else '+'convert(varchar(12),'+a.name +')'+' end'
       when a.xtype =122 then 'case when '+a.name+' is null then ''NULL'' else '+'convert(varchar(22),'+a.name +')'+' end'
       when a.xtype =48  then 'case when '+a.name+' is null then ''NULL'' else '+'convert(varchar(6),'+a.name +')'+' end'
--     when a.xtype =165 then 'case when '+a.name+' is null then ''NULL'' else '+'convert(varchar('+convert(varchar(4),a.length*2+2)+'),'+a.name +')'+' end'
       when a.xtype =167 then 'case when '+a.name+' is null then ''NULL'' else '+'''''''''+'+'replace('+a.name+','''''''','''''''''''')' + '+'''''''''+' end'
       else '''NULL'''
       end as col,a.colid,a.name
       from syscolumns a where a.id = object_id(@tablename) and a.xtype <>189 and a.xtype <>34 and a.xtype <>35 and  a.xtype <>36
       )t order by colid
      
       select @sqlstr=@sqlstr+left(@sqlstr2,len(@sqlstr2)-1)+') '+left(@sqlstr1,len(@sqlstr1)-3)+')'' from '+@tablename
--  print @sqlstr
       exec( @sqlstr)
       set nocount off
end
GO
 

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