Learning Journal Week 4
Learning Journal Week 4
This week is half way through the course.
Briefly summarize 5 things what you have learned in the course so far.
List at least 3 questions you still have about databases.
Database Normalization
I’ve learned how to structure databases efficiently using normalization techniques to reduce redundancy and improve data integrity.-
Writing SQL Queries
I can now write a variety of SQL queries sing statements likeSELECT,JOIN,GROUP BY, and more. -
Understanding ER Diagrams
I can design Entity-Relationship diagrams and use them to model relationships. -
Data Integrity with Constraints
I’ve learned how to use rules in the database using constraints likePRIMARY KEY,FOREIGN KEY,UNIQUE, andNOT NULL. -
Views and Indexes
I can use views to simplify data access.
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