SQL Constraints Explained | Protecting Data Quality

Автор: Free BI Academy

Загружено: 2025-12-24

Просмотров: 2

Описание:

This lesson explains SQL constraints in depth.
You’ll learn primary key, foreign key, check, and unique constraints.
I explain why constraints are critical in real systems.
Data quality starts at the database level.
A professional-level topic explained simply.

#sqlconstraints #dataquality #sqlserver #databases #dataanalyst #bideveloper #learnsql #analytics #databaseconcepts #bi

SQL Constraints Explained | Protecting Data Quality

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