Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

C# SQL µÄUPDATETEXT ÎÊÌâ - .NET¼¼Êõ / C#

A±í ÓÐÁ½¸ö×ֶΠ

  id ΨһÊý×ÖÓò
  InfoTxt text ÀàÐÍ

 ÎÒÏÖÔÚÒª°Ñ id ²»ÊÇ14 µÄËùÓÐ InfoTxt×Ö¶Î Îı¾ºóÃæ ¶¼¼ÓÉÏ 'aaa' 
°´ÏÂÃæÖ´ÐÐÏÂÀ´ Ö»Óбí×îºóÒ»ÐмÓÉÏÁË 'aaa' ¶ø±ðµÄÐеÄInfoTxt ¶¼³ÉÁË""¿ÕµÄ 

Çë½Ìǰ±²ÃÇ ÎÒÔõÑù×ö!!!!!!!!!!¼± ¼±

C# code:

DECLARE @ptrval binary(16) SELECT @ptrval = TEXTPTR(InfoTxt) from U_info where id <> 14
UPDATETEXT U_info.InfoTxt @ptrval null 0 'aaa'


updata tableName set infoTxt=infoTxt+¡°aaa¡± where id ¡¶¡·14

¼± ¼± À´ÈËѽ!!

Çë½Ì ¼±???

SQL code:
update U_info set InfoTxt = InfoTxt +'aaa' where id <> 14 ;


updata tableName set infoTxt=infoTxt+'aaa' where id<>14


select @ptrval=textptr(infoTxt) from tableName where Ìõ¼þ
 if(textvalid('tableName.infoTxt',@ptrval)=1)
  updatetext tableName.infoTxt @ptrval 0 null @infoTxt

ÒýÓÃ
select @ptrval=textptr(infoTxt) from tableName where Ìõ¼þ
if(textvalid('tableName.infoTxt',@ptrval)=1)
updatetext tableName.infoTxt @ptrval 0 null @infoTxt


ÕâÑù Ò²ÊÇ Ö»°É×îºóÒ»ÐÐ +ÁË 


&n


Ïà¹ØÎÊ´ð£º

sqlССµÄÒÉÎÊ - .NET¼¼Êõ / C#

¿ÉÄÜÒòΪ¹¤×÷µÄÔ­Òò ½Ó´¥Êý¾Ý¿âÕâ¿é±È½ÏÉÙ£¬Ö®Ç°¶¼ÊÇ×ö³ÌÐòÕâ¿é£¬Êý¾Ý¿âÕâ¿é¶¼ÓÐרÃŵÄÈËÀ´×ö ·Ö¹¤¶¼ºÜÃ÷ϸ ËùÒÔ¶ÔÊý¾Ý¿âÕâÒ»¿éÍêÈ«²»Á˽⡣ǰ¶Îʱ¼ä È¥ÃæÊÔÁ˼¸¼Ò¹«Ë¾ ¼¸ºõ¶¼ÊÇÔÚÊý¾Ý¿âÕâ¿é¹ÒµôµÄ Á¬¸ö¼òµ¥µÄSQ ......

C/C++ÖÐÓÐûÓиñʽ»¯UÅ̵ĺ¯Êý - C/C++ / C++ ÓïÑÔ

´ó¼ÒºÃ£º
ÎÒÏëʵÏÖ¼ì²âµ½²åÈëSD¿¨ºó×Ô¶¯½«SD¿¨¸ñʽ»¯µÄ¹¦ÄÜ£¬²»ÖªC/C++ÖÐÓÐûÓиñʽ»¯UÅ̵ĺ¯Êý£¿
ÁíÍ⣬ÎÒ²»ÏëʹÓÃSHFormatDrive£¬ÒòΪÕâ¸öº¯Êý»áµ¯³öÊÇ·ñÒª¸ñʽ»¯µÄÌáʾ¿ò£¬ÎÒÐèÒªµÄÊÇϵͳ×Ô¶¯¸ñʽ»¯£¬¶ø²Ù×÷Õß² ......

c¾²Ì¬±àÒëÁíÒ»¸öÎļþ¼ÐµÄ¿âº¯Êý - C/C++ / CÓïÑÔ

ÔÚ¸ùĿ¼/libÖдæ·ÅÒ»¸ölog.c£¬log.h£¬²¢ÓÃÏÂÃæµÄÓï¾ä£º
gcc -c log.c
ar crv liblog.a log.o
±àÒë³öÒ»¸öliblog.a¾²Ì¬¿â£¬È»ºóÔÚÎļþ¼Ð£º/testfileÖд´½¨Ò»¸ötest.cºÍtestc.c£¬test.cÖÐÒýÓÃÁËtestc.cÖж¨ÒåµÄ·½·¨ ......

¸ÕѧÍêCµÄ»ù´¡£¬ÇóÏÂÒ»²½ - C/C++ / CÓïÑÔ

ÎÒ¸Õ°ÑÌ·ºÆÇ¿µÄµÚÈý°æµÄÊéѧÍ꣬ÎÒÖªµÀµÄÓÐC++£¬CºÍÖ¸Õë CȱÏݺÍÏÝÚå Cר¼Ò±ä³É£¬»¹ÓÐÊý¾Ý½á¹¹£¬ÎÒÏëÎÊÎÊÎÒÓ¦¸ÃÒÔʲô˳ÐòÀ´Ñ§ÄØ
CȱÏݺÍÏÝÚå Cר¼Ò±à³Ì
Êǽø½×µÄ£¬²»Óü±×Å¿´
ÖÁÓÚ
CºÍÖ¸Õë 
Äã²»Àí½âÖ ......

¿ÄÇóC/SÔ´Âë - Delphi / Êý¾Ý¿âÏà¹Ø

ÏÖÓÐparadoxÊý¾Ý¿âʹÓÃBDEÇý¶¯£¬Äâ¸ÄΪC/S°æ£¬Ôö¼ÓÍøÂç¶ÁÈ¡Êý¾Ý¹¦ÄÜ¡£ÇëÄÄλ´óÏÀ£¬ÌṩԴÂë¡£
˵¾ä²»¿ÍÆøµÄ»°£¬ÓÃparadox×öC/SÊÇ×ÔѰËÀ·¡£
»»Ò»¸öÍøÂçÊý¾Ý¿â

ÒòΪ²»Ï붯´óÊÖÊõ£¬½öÄܹ²Ïí¼¸¸öÎļþ¼´¿É¡£

Da ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ