?????????????????????
???????????? ???????[ 2015/1/21 13:43:59 ] ?????????????
?????????????????3NF??
??????????????д??????????????г??????????????????????????????????????У???????????????????????????????
????
????????У??????????????????????????????????????????????????????ID??????????????????????????????????????????????????????????????
????????
????
???????????1??3NF??2NF?е???????2NF?????????????????????????3NF??????????????????????С?
??????2????????????????????????????????????????????????????ID?12????????????????????????????ID?12??????????????????????????ID?12???????????????и??￡????????????????update????????????????????к??????????????????????????????????
????BCNF?????????????巶????????????????о?????????????????????Щ????????????????????????
????????????????????????￡???????????
??????
???·???
??????????????????
2023/3/23 14:23:39???д?ò??????????
2023/3/22 16:17:39????????????????????Щ??
2022/6/14 16:14:27??????????????????????????
2021/10/18 15:37:44???????????????
2021/9/17 15:19:29???·???????·
2021/9/14 15:42:25?????????????
2021/5/28 17:25:47??????APP??????????
2021/5/8 17:01:11
sales@spasvo.com