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The top documents tagged [avg functions]
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avg functions
Copyright © 2011 Pearson Education, Inc. Publishing as Pearson Addison-Wesley Chapter 5 More SQL: Complex Queries, Triggers, Views, and Schema Modification.
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The Adult Learner - Kim Hardy and Melanie Clark
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Structured Query Language. Group Functions What are group functions ? Group Functions Group functions operate on sets of rows to give one result per group.
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Structured Query Language
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