TG: sql_for_qa/480

SQL для тестировщика

Что делает оператор EXPLAIN в SQL?

Anonymous Quiz

Анализирует использование индексов в запросе.

Показывает план выполнения запроса.

Оценивает статистику распределения данных.

Анализирует использование памяти.

Проверяет наличие ошибок в запросе.

Контролирует исправление ошибок в запросе.

Выводит информацию о предполагаемом времени выполнения запроса.

Выводит список индексов, используемых при выполнении запроса.

Генерирует отчет о производительности запроса.

Отображает структуру и размер временных таблиц, создаваемых в процессе запроса.

180 answered

👍5

www.tg-me.com/sg/SQL для тестировщика/com.sql_for_qa/480

1.67K viewsJul 8, 2024 at 12:38

tg-me.com/sql_for_qa/480

Create: 2024-07-08
Last Update: 2025-07-08 13:12:52

BY SQL для тестировщика

Warning: Undefined variable $i in /var/www/tg-me/post.php on line 283

Share with your friend now:
tg-me.com/sql_for_qa/480

SQL для тестировщика Telegram | DID YOU KNOW?

Telegram announces Anonymous Admins

The cloud-based messaging platform is also adding Anonymous Group Admins feature. As per Telegram, this feature is being introduced for safer protests. As per the Telegram blog post, users can “Toggle Remain Anonymous in Admin rights to enable Batman mode. The anonymized admin will be hidden in the list of group members, and their messages in the chat will be signed with the group name, similar to channel posts.”

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.