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Database training
3.6.11. Optimise (Indexing)
Giving the Optimiser hints
Indexing
Simple - single attribute
Index(A)
Reduce sparse domains (e.g. text)
Composite - multiple attributes (typically pairs)
Index (A,B)
Some subtleties in here
‹ 3.6.10. Traversal
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3.6.12. Optimise (Limit) ›
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