To query a user's mobile phone and WeChat number, the following SQL statement can be used.

In the context of rapid globalization, businesses are increasingly facing the need for cross-border data transmission. Different countries and regions adopt various time zones, date formats, and time ...

This database originally covered cases from 1982 to 2012 and has since been updated and expanded numerous times. For analysis and context on this data—including how we built the database, and a change ...

HackerRank isn’t just a random collection of problems; they’ve organized their SQL section pretty well. You can find ...

Led by the International Fact-Checking Network (IFCN) at the Poynter Institute, the #CoronaVirusFacts united more than 100 fact checkers around the world in publishing, sharing, and translating facts ...