Query Optimization
The biggest speed-ups can be seen by reprogramming your SQL statements so they are more efficient. If you follow these tips, your server will thank you:
Select as little data as possible. Rather than SELECT *
, select only the fields you need.
If you need only a few rows, use LIMIT
to select the number you need.
Declare fields as NOT NULL
when creating tables to save space and increase speed.
Provide default values for fields ...
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