通过创建SQL Server的存储过程并运行,可以实现将指定表的全部数据导出。存储过程定义如下:
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'
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