一个递增的数如何产生一个唯一的随机数 - V2EX

一个递增的数如何产生一个唯一的随机数 - V2EX

Home Sign Up Sign In

This topic created in 2469 days ago, the information mentioned may be changed or developed.

场景是这样的，数据库中已有的数据主键是递增的，由于这个 id 是连续递增的会暴露系统真实用户的每日注册数量，所以要将这个 id 改在成随机的，又因为 id 必需是唯一的，如果改成随机数必定会有重复，有没有什么算法可以使一个递增的数对应一个唯一的随机数

2 replies

1

zwl2012

Aug 14, 2019 via iPhone

uuid

2

Leammin

Aug 14, 2019 via Android

Snowflake

About Help Advertise Blog API FAQ Solana 2583 Online Highest 6679

Select Language

创意工作者们的社区

World is powered by solitude

VERSION: 3.9.8.5 50ms UTC 15:30 PVG 23:30 LAX 08:30 JFK 11:30
Do have faith in what you're doing.

ubao msn snddm index pchome yahoo rakuten mypaper meadowduck bidyahoo youbao zxmzxm asda bnvcg cvbfg dfscv mmhjk xxddc yybgb zznbn ccubao uaitu acv GXCV ET GDG YH FG BCVB FJFH CBRE CBC GDG ET54 WRWR RWER WREW WRWER RWER SDG EW SF DSFSF fbbs ubao fhd dfg ewr dg df ewwr ewwr et ruyut utut dfg fgd gdfgt etg dfgt dfgd ert4 gd fgg wr 235 wer3 we vsdf sdf gdf ert xcv sdf rwer hfd dfg cvb rwf afb dfh jgh bmn lgh rty gfds cxv xcv xcs vdas fdf fgd cv sdf tert sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf shasha9178 shasha9178 shasha9178 shasha9178 shasha9178 liflif2 liflif2 liflif2 liflif2 liflif2 liblib3 liblib3 liblib3 liblib3 liblib3 zhazha444 zhazha444 zhazha444 zhazha444 zhazha444 dende5 dende denden denden2 denden21 fenfen9 fenf619 fen619 fenfe9 fe619 sdf sdf sdf sdf sdf zhazh90 zhazh0 zhaa50 zha90 zh590 zho zhoz zhozh zhozho zhozho2 lislis lls95 lili95 lils5 liss9 sdf0ty987 sdft876 sdft9876 sdf09876 sd0t9876 sdf0ty98 sdf0976 sdf0ty986 sdf0ty96 sdf0t76 sdf0876 df0ty98 sf0t876 sd0ty76 sdy76 sdf76 sdf0t76 sdf0ty9 sdf0ty98 sdf0ty987 sdf0ty98 sdf6676 sdf876 sd876 sd876 sdf6 sdf6 sdf9876 sdf0t sdf06 sdf0ty9776 sdf0ty9776 sdf0ty76 sdf8876 sdf0t sd6 sdf06 s688876 sd688 sdf86