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Comprehensive SQL Databases Course

Comprehensive SQL Databases Course
from 4 to 360h flexible workload
valid certificate in your country

What will I learn?

Gain expertise in SQL using practical subscription datasets in this focused, practical course. Craft strong database structures, set strict rules, and create reliable CREATE TABLE scripts. Develop fast queries for MRR, ARR, active subs, late payments, and help metrics, plus optimise indexes, handle updates, add real test data, and ensure data accuracy for solid reports and analysis.

Elevify advantages

Develop skills

  • Advanced SQL analysis: quickly create complex MRR, ARR, and overdue reports.
  • Production schema design: structure subscription info in clean 3NF tables.
  • Strong constraints and keys: apply business logic via foreign keys, checks, uniques.
  • Performance indexing: speed up queries using composite and covering indexes.
  • Secure data seeding: produce realistic anonymised test data via bulk inserts.

Suggested summary

Before starting, you can change the chapters and the workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workload.
Workload: between 4 and 360 hours

What our students say

Your classes are perfect. I purchased the one-year package and finally have the opportunity to follow various topics of my interest without needing to change platforms... I thank you for everything you do, I've already recommended you to other people...
Giulio Carlo
Giulio CarloDigital Marketing Student
I like how the lessons are straight to the point and how I can switch chapters and skip content I don't need.
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Mariana FerresPhotography Student
I like the content and the way videos are presented and transcribed, which speeds up the process!
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Luciana AlvarengaNail Design Student
The platform is fast, simple to use. The diversity of content and complementary videos really help with learning.
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André FelipePrompt Engineering Student

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