商业源码热门下载www.html.org.cn
使用sql server 2000自带的“生成sql脚本”工具,可以生成创建表、视图、存储过程等的sql脚本。那么,能否将表中的数据也生成为sql脚本,在查询分析器中执行这些脚本后自动将数据导入到sql server中呢?答案是肯定的。
下面的存储过程是一位高人写的,这位高人的姓氏已无人知晓,但sql server社区中偶尔还可看到此不朽之作。
create procedure dbo.outputdata
@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 -- 判断对象是否存在
begin
print @tablename + '对象不存在'
return
end
set @objectname=rtrim(object_name(@objectid))
if @objectname is null or charindex(@objectname,@tablename)=0
begin
print @tablename + '对象不在当前数据库中'
return
end
if objectproperty(@objectid,'istable') < > 1 -- 判断对象是否是表
begin
print @tablename + '对象不是表'
return
end
select @ident=status&0x80 from syscolumns where [email protected] and status&0x80=0x80
if @ident is not null
print 'set identity_insert '+ @tablename + ' on'
--定义游标,循环取数据并生成insert语句
declare syscolumns_cursor cursor for
select c.name,c.xtype from syscolumns c
where [email protected]
order by c.colid
--打开游标
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 @[email protected] +
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 '''''''''+'[email protected]+'+''''''''' --varchar,char
when @xtype in(231,239) then '''n''''''+'[email protected]+'+''''''''' --nvarchar,nchar
when @xtype=61 then '''''''''+convert(char(23),'[email protected]+',121)+''''''''' --datetime
when @xtype=58 then '''''''''+convert(char(16),'[email protected]+',120)+''''''''' --smalldatetime
when @xtype=36 then '''''''''+convert(char(36),'[email protected]+')+''''''''' --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 '[email protected]+'('[email protected]+') values(''as ''--'','[email protected]+','')'' from '[email protected]
print '--'[email protected]
exec(@sql)
if @ident is not null
print 'set identity_insert '[email protected]+' off'
调用时 exec outputdata 'myuser' 其中myuser中当前数据库中存在的表