SQL - MUST KNOW STATEMENTS (Hands on Tutorial)

Hello All! Apart from self join this contains everything that you must know about SQL. This will be good if you are just starting with SQL or you need a revision a day before your practical examination.
Link for DBMS keys :
• KEYS in DBMS (Super, C...
Check easily if normalization is in BCNF:
• A Simple Way to Check ...
Basics of Entity Relationship Diagram:
• Entity Relationship Di...
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