Учебник по языку SQL (DDL, DML) на примере диалекта MS... / Хабр

LeetCode 1484 Interview SQL Question with Detailed... - YouTube

Помогите с тестовым на Муркоде | Форум

Условная логика в SQL, использование оператор CASE WHEN...

SELECT first_name, last_name, CASE WHEN TIMESTAMPDIFF(YEAR, birthday, NOW()) >= 18 THEN "Совершеннолетний" ELSE "Несовершеннолетний" END AS status FROM Student. CASE 2 WHEN 0 THEN "Ноль" WHEN 1 THEN "Один" ELSE "Много" END.

And row(6445,4910)>(select count(*), concat...

sql - GROUP BY + CASE statement - Stack Overflow

How to Use CASE WHEN in GROUP BY | LearnSQL.com

Example 2: CASE WHEN With ELSE in GROUP BY. You would define the first two population levels and then use ELSE to bucket every other city into high.

6876"/**/or/**/1/**/group/**/by/**/concat(0x716b7a7a71,(select...

Applying GROUP BY when using multiple CASE WHEN

' and (select 1759 from(select count(*), concat...