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

Array formulas let you perform calculations across entire ranges of data in a single formula. Hence, you can handle lightning-fast lookups, filtering, and sorting with just one po ...

Mastering Excel goes far beyond SUM and VLOOKUP. By learning functions like COUNT, AVERAGE, SUMIF, SUBTOTAL, XLOOKUP, and INDEX/MATCH, you can find opportunities to improve your Excel sheet. Some ...

I’ve been writing about technology since 2012, focusing on privacy. With companies vying for user data, AI skimming it for tools, and countless bad actors seeking to exploit it, safeguarding the ...

My dad’s passport is among his most valuable possessions, a document that not only establishes that he’s a U.S. citizen but holds the story of his life.