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More on Aggregate Functions (18/33)
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Functions (17/33)
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Creating Custom Columns (16/33)
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Regular Expressions (15/33)
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More on Wildcards (14/33)
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How Search Engines Work (13/33)
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Are you IN or are you NOT IN? (12/33)
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Advanced Filtering Using AND and OR (11/33)
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Basic Data Filtering and WHERE (10/33)
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Sort Direction (9/33)
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Sorting Results (8/33)
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DISTINCT and LIMIT (7/33)