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This Chapter
10.1 Combination Queries to Consider After Unary Operators
10.
Combining the Unary Operators
¶
Adding a bit of complexity
10.1. Combination Queries to Consider After Unary Operators
10.1.1. Filter followed by Reduce
10.1.2. Filter followed by Project
10.1.3. Filter before a Group
10.1.4. Reduce first, then Group
10.1.5. Group followed by Group
10.1.6. Group then Filter
10.1.7. Avoid non-useful work
10.1.8. Exercises
10.1.9. SQL Practice for Combination Queries
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