What are some advanced techniques for formulating criteria queries?
Advanced techniques include using nested queries, combining multiple criteria with logical operators, and leveraging indexing.
Can you explain how to use nested queries effectively?
Certainly! Nested queries allow you to perform sub-queries within your main query, enabling more complex data retrieval.
What are logical operators, and how do they enhance queries?
Logical operators like AND, OR, and NOT help combine multiple conditions, making your queries more precise and flexible.
How can indexing improve the performance of my queries?
Indexing speeds up data retrieval by creating a data structure that allows the database to find records faster.
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