SQL best practices for database design and query tuning

1. TABLE OF CONTENT
 Data-types to choose
 Normalization
 Explain Plan
 Index & Its usage
 Composite index
 Rewriting Queries

2. DATA-TYPE TO CHOOSE:

8. NORMALIZATION:

10. EXPLAIN PLAN:

14. INDEX and Its Usage:

17. COMPOSITE INDEXES:
Index used:
Index Not used:

19. REWRITING QUERIES:

22. Q & A:-
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