SQL

The standard language for relational databases.

3 Pakete verfügbar

Themen-Preis

€5

SELECT & Aggregates

SQL — SELECT & Aggregates

SELECT, WHERE, ORDER BY, GROUP BY, and aggregate functions.

20 Karten · Kostenlos

Joins & Transactions

SQL — Joins & Transactions

Subqueries, CTEs, all JOIN types, views, indexes, and transactions.

20 Karten

Locked

Window Functions & Tuning

SQL — Window Functions & Tuning

Window functions, JSON operations, query tuning with EXPLAIN, normalisation, ACID.

20 Karten

Locked