Udemy - Practical Sql For Analysts - From Zero To Ctes torrent

Practical Sql For Analysts: From Zero To Ctes
https://WebToolTip.com
MP4 | Video: h264, 1920x1080 | Audio: AAC, 44.1 KHz

Language: English | Size: 258.79 MB | Duration: 2h 37m
Build, Fill, and Query a Real E-Commerce Database — DDL, DML, JOINs, Subqueries & CTEs. Build a Real Sales Dashboard.
What you'll learn

Design and create database tables using DDL commands (CREATE TABLE, ALTER TABLE, DROP TABLE) with appropriate data types, primary keys, and foreign keys.

Manipulate data safely using INSERT, UPDATE, and DELETE statements, applying the "always use WHERE" rule to avoid catastrophic mistakes.

Read and filter data with SELECT, WHERE, ORDER BY, LIMIT, DISTINCT, and proper handling of NULL values using IS NULL, IS NOT NULL, and COALESCE.

Aggregate data using GROUP BY, HAVING, and aggregate functions (COUNT, SUM, AVG, MIN, MAX), including grouping by date components for time-series analysis.

Combine data from multiple tables using all five JOIN types (INNER, LEFT, RIGHT, FULL OUTER, SELF JOIN) and understand when each is appropriate.

Write subqueries and CTEs (WITH ... AS) to break down complex business questions into readable, maintainable SQL queries.

Build a complete data mart — a monthly_sales_dashboard view that combines all course concepts into a portfolio-ready analytics artifact.

Translate SQL across dialects — recognize syntactic differences between SQLite, PostgreSQL, MySQL, MS SQL Server, and Oracle, and switch between them.
Requirements

No prior SQL experience required — we start from absolute zero.

No programming experience required — SQL is declarative, not procedural.

A modern web browser (Chrome, Firefox, Safari, Edge) — all practice happens in Udemy's built-in coding environment, no installations needed.

Basic computer literacy — file management, copy/paste, web navigation.

English reading comprehension at intermediate level — videos use clear, slow English.