怎样对mssql里面的image对象进行读写操作呢

Question

怎样对mssql里面的image对象进行读写操作呢
可以实现对imgae字段所向插入一个值,也可以把这个值读取出来,
伏望大家指点,小弟期待...

Answer 1

declare @t table(img image)
insert into @t select 'aaaa'
select * from @t
/*
img
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
0x61616161(1 行受影响)
*/

Answer 2

参考：http://blog.csdn.net/htl258/archive/2010/04/15/5486178.aspx

Answer 3

READTEXT 
UPDATETEXT
WRITETEXT

Answer 4

http://blog.csdn.net/zjcxc/archive/2003/12/29/20077.aspx
zjcxc （邹建） 的博客，看看老大的博客你会大涨见识

Answer 5

一个有关存储过程导出数据为图片的方法create PROCEDURE sp_textcopy (   
  @srvname    varchar (30),   
  @login      varchar (30),   
  @password    varchar (30),   
  @dbname      varchar (30),   
  @tbname      varchar (30),   
  @photoname    varchar (30),   
  @filename    varchar (30),   
  @whereclause varchar (40),   
  @direction  char(1))   
AS   
--http://topic.csdn.net/u/20080421/09/f0f1a4d3-ea79-43e4-a8e7-f55025543ee4.html?1600242342
DECLARE @exec_str varchar (255)   
SELECT @exec_str =   
         'textcopy /S  ' + @srvname +   
         ' /U  ' + @login +   
         ' /P  ' + @password +   
         ' /D  ' + @dbname +   
         ' /T  ' + @tbname +   
         ' /C  ' + @photoname +   
         ' /W " ' + @whereclause +   
         '" /F  ' + @filename +   
         ' / ' + @direction   
EXEC master..xp_cmdshell @exec_str ,no_output   create table photo(id int identity(1,1),photo image,memo nvarchar(50) default  'my photo ')  
go  insert photo(photo) values(0x)    
insert photo(photo) values(0x)   
--select * from photo  
--truncate table photo  --读入 
sp_textcopy  'ibm', 'sa ', '123', 'liz', 'photo', 'photo', 'd:\ip.jpg', 'where id=1', 'I'  --输出 
sp_textcopy  'ibm', 'sa ', '123', 'liz', 'photo', 'photo', 'e:\ip.jpg', 'where id=1', 'o'