Қаторларда қайтарилаётган маълумотларни ўчириш учун "Удалить дубликаты" командасидан фойдаланинг.
Бу командани қўллаётганда фақатгина керакли устунларни белгилашни унутманг. Масалан, барча устунлар белгиланган бўлса фақат тўлиқ такрорланган қаторлар ўчирилади.
Бир нечта устун белгиланса энг қуйи категория уникаллиги таъминланади. Мисол, фақат битта категория уникаллигини таъминлаш керак бўлса айнан ўша категория белгиланган холда "Удалить дубликаты" командаси қўлланилади.
Қаторларда қайтарилаётган маълумотларни ўчириш учун "Удалить дубликаты" командасидан фойдаланинг.
Бу командани қўллаётганда фақатгина керакли устунларни белгилашни унутманг. Масалан, барча устунлар белгиланган бўлса фақат тўлиқ такрорланган қаторлар ўчирилади.
Бир нечта устун белгиланса энг қуйи категория уникаллиги таъминланади. Мисол, фақат битта категория уникаллигини таъминлаш керак бўлса айнан ўша категория белгиланган холда "Удалить дубликаты" командаси қўлланилади.
For some time, Mr. Durov and a few dozen staffers had no fixed headquarters, but rather traveled the world, setting up shop in one city after another, he told the Journal in 2016. The company now has its operational base in Dubai, though it says it doesn’t keep servers there.Mr. Durov maintains a yearslong friendship from his VK days with actor and tech investor Jared Leto, with whom he shares an ascetic lifestyle that eschews meat and alcohol.
Should You Buy Bitcoin?
In general, many financial experts support their clients’ desire to buy cryptocurrency, but they don’t recommend it unless clients express interest. “The biggest concern for us is if someone wants to invest in crypto and the investment they choose doesn’t do well, and then all of a sudden they can’t send their kids to college,” says Ian Harvey, a certified financial planner (CFP) in New York City. “Then it wasn’t worth the risk.” The speculative nature of cryptocurrency leads some planners to recommend it for clients’ “side” investments. “Some call it a Vegas account,” says Scott Hammel, a CFP in Dallas. “Let’s keep this away from our real long-term perspective, make sure it doesn’t become too large a portion of your portfolio.” In a very real sense, Bitcoin is like a single stock, and advisors wouldn’t recommend putting a sizable part of your portfolio into any one company. At most, planners suggest putting no more than 1% to 10% into Bitcoin if you’re passionate about it. “If it was one stock, you would never allocate any significant portion of your portfolio to it,” Hammel says.
