SQL задачи
SQL задачи для подготовки к собеседованию. SQL тесты для проверки знаний. № 7065181110 SQL запросы к конкретной Базе данных с решением и разбором По вопросам рекламы: @anothertechrock
Show more📈 Analytical overview of Telegram channel SQL задачи
Channel SQL задачи (@sqlquestions) in the Russian language segment is an active participant. Currently, the community unites 10 075 subscribers, ranking 12 209 in the Technologies & Applications category and 65 085 in the Russia region.
📊 Audience metrics and dynamics
Since its creation on невідомо, the project has demonstrated rapid growth, gathering an audience of 10 075 subscribers.
According to the latest data from 13 June, 2026, the channel demonstrates stable activity. Although there has been a change in the number of participants by -27 over the last 30 days and by 1 over the last 24 hours, overall reach remains high.
- Verification status: Not verified
- Engagement rate (ER): The average audience engagement rate is 12.29%. Within the first 24 hours after publication, content typically collects 5.51% reactions from the total number of subscribers.
- Post reach: On average, each post receives 1 238 views. Within the first day, a publication typically gains 555 views.
- Reactions and interaction: The audience actively supports content: the average number of reactions per post is 5.
- Thematic interests: Content is focused on key topics such as sql, sqlquestions, шапка, order_table, архитектура.
📝 Description and content policy
The author describes the resource as a platform for expressing subjective opinions:
“SQL задачи для подготовки к собеседованию.
SQL тесты для проверки знаний.
№ 7065181110
SQL запросы к конкретной Базе данных с решением и разбором
По вопросам рекламы: @anothertechrock”
Thanks to the high frequency of updates (latest data received on 14 June, 2026), the channel maintains relevance and a high level of publication reach. Analytics show that the audience actively interacts with content, making it an important point of influence in the Technologies & Applications category.
Реклама. Информация о рекламодателе на сайте otus.ruSELECT salesman.salesman_id, name, cust_name, commission FROM salesman, customer WHERE salesman.city = customer.city UNION (SELECT salesman_id, name, 'NO MATCH', commission FROM salesman WHERE NOT city = ANY (SELECT city FROM customer)) ORDER BY 2 DESC#задача
salesman_id, name, cust_name, commission. Отсортируйте выборку по второму столбцу (т.е. имени продавца) в порядке убывания.
#задачаРеклама. Информация о рекламодателе на сайте www.otus.ruSELECT * FROM customer WHERE NOT (city = 'New York' OR grade>100);#задача
customer_id, cust_name, city, grade и salesman_id.
#задачаРеклама. Информация о рекламодателе на сайте otus.ruSELECT a.cust_name AS "Customer Name", a.city, b.name AS "Salesman", b.commission FROM customer a INNER JOIN salesman b ON a.salesman_id=b.salesman_id WHERE b.commission>.12;#задача
Customer Name) и города (city) клиентов, имена продавцов (Salesman) и их комиссионные (commission).
#задачаРеклама. Информация о рекламодателе на сайте otus.ruSELECT a.salesman_id, name, ord_no, 'highest on', ord_date FROM salesman a, orders b WHERE a.salesman_id =b.salesman_id AND b.purch_amt= (SELECT MAX (purch_amt) FROM orders c WHERE c.ord_date = b.ord_date) UNION (SELECT a.salesman_id, name, ord_no, 'lowest on', ord_date FROM salesman a, orders b WHERE a.salesman_id =b.salesman_id AND b.purch_amt= (SELECT MIN (purch_amt) FROM orders c WHERE c.ord_date = b.ord_date)) ORDER BY 3#задача
salesman_id, name, order_no, строку highest on или lowest on (т.е. наибольшая или наименьшая сумма на [определенное число], ord_date. Отсортируйте результат по третьему полю, т.е. по номеру заказа.
#задачаSELECT * FROM customer WHERE city = 'New York' OR NOT grade>100;#задача
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