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¿£¬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 ......
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.
¿ ......
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 ......
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 ......
Ҫת³ÉÒ»ÑùµÄЧ¹û£¬ÓÃpowerdesignerÔõôת£¿ÄÜתÂð£¿
create table publishers (
publisherID int identity,
publisherName varchar (30) NOT NULL,
constraint pk_publishers primary key (publisherID)
)& ......