VC+SQL Server×ö·Ö´ÊËÑË÷
Ôç¾ÍÌý˵ÓÃÖÐÎķִʵķ½·¨¿ÉÒÔÖÇÄÜËÑË÷,×î½ü×öÁËÒ»¸öÍøÉÏÊéµê,ÊÇVC+SQL Serverƽ̨Ï¿ª·¢µÄ,µ«ËÑË÷µÄÎÊÌâһֱûÓнâ¾ö,²»ÖªµÀÔõô×ö·Ö´ÊËÑË÷,Çë½Ì¸ßÊÖ½â´ðÒ»ÏÂVC+SQL Server·Ö´ÊËÑË÷µÄ¹ý³Ì!
ÈçÐèÒªÔĶÁ¸Ã»Ø¸´£¬ÇëµÇ¼»ò×¢²áCSDN!
Ïà¹ØÎÊ´ð£º
with adod_dict do
begin
close;
commandtext:='select bgqxcode,count(*) wjsl from wscl_wsda_file where wjnd=:tnd group by bgqxcode'; ......
СµÜ×î½üÓöµ½Ò»¸öÎÊÌ⣬ҪÇóµÃ³öÄĸö°à¼¶µÄ½Ìʦ´ýÓö×î¸ß£¬°Ñͬһ¸ö°à¼¶µÄ½Ìʦ´ýÓöºÏ¼ÆÆðÀ´
°à¼¶±í ½Ìʦ±í
°à¼¶ID & ......
ÓÐ×Ö¶Î
ÈÕÆÚ£¬id
ÈÕÆÚ²»Öظ´£¬id ÓÐÖØ¸´
ÐèҪɸѡ³ö ÿ¸öidÀïÃæÈÕÆÚ×îÔçµÄÊý¾Ý¡£
SQL code:
select * from ±í t where not exists(select 1 from ±í where t.ÈÕÆÚ>ÈÕÆÚ and id=t.id)
SQL ......
±íA
Sup_code st_sup_code buy_code buy_code1
1001 400 &nbs ......
Êý¾Ý±í¡¾biao¡¿£¬
×ֶΣºid¡¢myname¡¢mytxt
mytxtÄÚÈݸñʽÐÎÈ磺n|abcd¡££¨ÀýÈ磺1|ÁõµÂ»ª£¬2|Èδﻪ£¬3|αÌϼ£¬4|Âõ¿Ë@½Ü¿ËÑ·£©
ÎÒÏÖÔÚÏ£Íû¶Á¼Ç¼³öÀ´ºó£¬°´ÕÕ[mytxt]×Ö¶ÎÀïµÄÊúÏߣ¨|£©Ç°ÃæµÄÄǸöÊý× ......