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Как лучше всего изучать язык SQL?

В 1986 году язык SQL (Structured Query Language) стал стандартом. В течение последующих 40 лет он стал доминирующим языком для систем управления реляционными базами данных. Чтение последнего стандарта (ANSI SQL 2016) может занять много времени. Как я могу его выучить?

Существует 5 компонентов языка SQL:
- DDL: язык определения данных, например CREATE, ALTER, DROP.
- DQL: язык запросов к данным, например SELECT
- DML: язык манипулирования данными, например INSERT, UPDATE, DELETE
- DCL: язык управления данными, например GRANT, REVOKE
- TCL: язык управления транзакциями, например COMMIT, ROLLBACK.

Для бэкенд-инженера вам может потребоваться знание большинства из них. Как аналитику данных, вам может понадобиться хорошее понимание DQL. Выберите темы, которые наиболее актуальны для вас.

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Как лучше всего изучать язык SQL?

В 1986 году язык SQL (Structured Query Language) стал стандартом. В течение последующих 40 лет он стал доминирующим языком для систем управления реляционными базами данных. Чтение последнего стандарта (ANSI SQL 2016) может занять много времени. Как я могу его выучить?

Существует 5 компонентов языка SQL:
- DDL: язык определения данных, например CREATE, ALTER, DROP.
- DQL: язык запросов к данным, например SELECT
- DML: язык манипулирования данными, например INSERT, UPDATE, DELETE
- DCL: язык управления данными, например GRANT, REVOKE
- TCL: язык управления транзакциями, например COMMIT, ROLLBACK.

Для бэкенд-инженера вам может потребоваться знание большинства из них. Как аналитику данных, вам может понадобиться хорошее понимание DQL. Выберите темы, которые наиболее актуальны для вас.
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Как лучше всего изучать язык SQL?

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