IT討論區(97) 一流公司,三流方案,九流團隊,你地今日ZGIT好晒先好放假!!!!

1001 回覆
4 Like 0 Dislike
2020-10-09 11:59:16
多謝巴打

而家係某間crypto exchange做緊intern, 但覺得crypto果邊都係etherum-based多d, 我比較想試下build 一條自己既chain

我剩係有書本既知識, 真實落手implement就未試過。如果hyperledger方面 , interview要準備d咩?
2020-10-09 12:00:35
試下 Full outer join
2020-10-09 12:07:24
試吓上面牙青咁 可能兩邊 encoding 唔一樣
2020-10-09 12:10:27
2020-10-09 12:11:25
唔得佢都係撈到兩個table一樣同唔一樣既Andreas
但我淨係想要唔一樣
2020-10-09 12:14:00
Md5佢話md5 is not a recognized built in function name
2020-10-09 12:24:53
你想要一樣定唔一樣
2020-10-09 12:26:42
SELECT *
FROM t1, t2
WHERE t1.id = t2.id AND t1.address <> t2.address


Check encoding one two tables to see if they use the same
2020-10-09 12:36:52
想要唔一樣
但佢output一樣同唔一樣既地址都有
Eg. Id t1.addr t2.addr
1 Hong Kong Hong Kong
2 Mong Kok Yuen long



Id t1.addr t2.addr
理想:2 Mong Kok Yuen long


Check左encoding table一樣
2020-10-09 12:48:01
屌 中文先岩
Id t1.addr t2.addr
1 香港 香港
2 旺角 元朗

理想:
Id t1.addr t2.addr
2 旺角 元朗

2020-10-09 12:53:30
我用MS SQL
2020-10-09 12:55:42
你個 Condition 有問題

你上下唔用 Join on 用我個寫法
2020-10-09 13:16:51
佢英文work, 唔似佢寫錯

select t1.addr, t2.addr, t1.addr = t2.addr, ...othercolumns.... from... where....

睇下column 3是咪false

再絕D HashBytes('MD5', t1.addr)....睇下hash value是咪唔同
2020-10-09 13:28:12
覺得係2個table encoding 唔岩

利申唔多識SQL
2020-10-09 14:20:16
歐洲x2等摺其中一個location
2020-10-09 14:23:50
多謝手巴講D咁鼓勵性既說話
2020-10-09 14:24:42
垃圾
2020-10-09 14:26:20
2020-10-09 14:28:00
都係出一樣同唔一樣既地址
HashBytes都係一樣
2020-10-09 14:30:32
2020-10-09 14:35:12
係咪有D咩誤會左? t1.addr = t2.addr 既
bool value係咩? 我句野已經debug到最底層
無理由搞唔惦
2020-10-09 14:42:01
gen 個schema 同幾條record 黎睇睇
吹水台自選台熱 門最 新手機台時事台政事台World體育台娛樂台動漫台Apps台遊戲台影視台講故台健康台感情台家庭台潮流台美容台上班台財經台房屋台飲食台旅遊台學術台校園台汽車台音樂台創意台硬件台電器台攝影台玩具台寵物台軟件台活動台電訊台直播台站務台黑 洞