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

ÕæµÄºÜ¼±£¬ºÜ¼±£¡mysql ÁªºÏ²éѯ

SQL code:
select `product_hardware_view`.`ProductID`,`product_hardware_view`.`Version`,
`product_hardware_view`.`Price` , `product_software_view`.`Price`
from `product_hardware_view`,`product_software_view`
where `product_hardware_view`.`ProductID` = `product_software_view`.`ProductID`


²éѯ³öÀ´µÄ½á¹û


id  version  price  price_1
1  1.0.1.1  12      null
2  1.0.2.2  13      null
3  1.0.3.3  14      null
4  1.0.4.4  null    12
5  1.0.5.5  null    13
6  1.0.6.6  null    null
7  1.0.7.7  null    null

ÓÃʲôÑùµÄÓï¾ä¿ÉÒÔ°ÑpriceºÍprice_1ÔÚÒ»¸öÁÐÖÐÏÔʾ

  ´óϺ°ï°ï棬СµÜÔÚÏßµÈ
ÓÃʲôÑùµÄÓï¾ä¿ÉÒÔ°ÑpriceºÍprice_1ÔÚÒ»¸öÁÐÖÐÏÔʾ
¾ÙÀý˵Ã÷

id  version  price 
1  1.0.1.1  12     
2  1.0.2.2  13   
3  1.0.3.3  14     
4  1.0.4.4  12
5  1.0.5.5  13
6  1.0.6.6  null   
7  1.0.7.7  null 

ÎÒÏëÒªµÄ½á¹ûÊÇÕâÑùµÄ¡£

¸÷λ´óϺ°ï°ïæ


Ïà¹ØÎÊ´ð£º

Winform+MySQL×öÏîÄ¿

Winform+MySQL×öÏîÄ¿£¬ÔÚ×¢ÖØÐÔÄܵÄÇé¿öÏ£¬ÎÒ¸ÃÈçºÎÈ¥Íê³ÉÕâÀàÐ͵ÄÏîÄ¿ÄØ£¡
Çë¸÷λ¸øÒÔÌáʾ¡£
ÄãÕâ¸ö·¶Î§Ì«¹ãÁË£¬ÎÒ˵2µãÖØÒªµÄ°É
1.WINFORM³ÌÐòÊǵ¥¶ÀÔËÐеÄCS³ÌÐò£¬ºÍBS²»Í¬£¬BSµÄѹÁ¦Ê¼ÖÕ¶¼ÔÚSERVERÉϵ쬶ÔC ......

MYSQL°²×°Ê§°Ü

ÎÒÒÔǰ°²×°ÁËÒ»´Î£¬ºóÀ´Ð¶ÔØÁË£¬ÏÖÔÚÔÙ°²×°µÄʱºò£¬Ìáʾ´íÎó£ºError 1305.Error reading from file C:DOCUME~1\LOCALS~1\Temp\mysql_server.msi.Verify that the file exists and that you can access it. 
¿ ......

c#¿ØÖÆMysql ʵÏÖ×Ô¶¯É¾³ý¹¦ÄÜ - .NET¼¼Êõ / C#

Óиöwinform³ÌÐò,ʹÓÃc#+mysql,ÐèÒªÔÚÒ»¸ö´°ÌåÉèÖÃmysql×Ô¶¯É¾³ý¹¦ÄÜ,°üÀ¨×Ô¶¯É¾³ý¶àÉÙÌì֮ǰµÄÊý¾ÝÒÔ¼°ÊÇ·ñ¿ªÆô×Ô¶¯É¾³ý¹¦ÄÜ,ÎÒ³ÌÐòÍ˳öºó,»¹Ôõô¿ØÖÆMysql×Ô¼ºÉ¾³ý°¡?ÊDz»ÊÇÒªÓÃmysqlµÄeventÀ´ÊµÏÖ?c#¿ÉÒÔµ÷ÓÃmysq ......

ASP +Mysql proc

ÏëÇë½ÌÒ»¸öÎÊÌ⣬ASP+mysql »á²»»áÓÐÁ¬½ÓĬÈÏʱ¼ä¡£
ÎÒÓöµ½Ò»¸öÎÊÌ⣺ÎÒÔÚÒ³ÃæÉϰ´Ò»¸öSave°´Å¥£¬Õâ¸ö°´Å¥ÊÇÑ­»·ÔËÐÐ100ƪ insertÊý¾ÝµÄ´æ´¢¹ý³Ì¡£ asp´úÂëÓ¦¸ÃûÓдíµÄ£¬Êý¾ÝÎÒÊÇ·ÅÔÚÒ»¸öÊý×éµÄÈç¹ûÎÒÖ»±£´æ50¸öÊÇ ......

Sqlserver Óï¾äת³ÉMySqlÓï¾ä

Ҫת³ÉÒ»ÑùµÄЧ¹û£¬ÓÃpowerdesignerÔõôת£¿ÄÜתÂð£¿
create table publishers (
publisherID int identity,
publisherName varchar (30) NOT NULL,
constraint pk_publishers primary key (publisherID)
)& ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ