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SQL-BASICS5 MIN READ

Campaign QA Board: Spot the Predicate in the Wrong Place

Identify when a filter must run after grouping because it depends on an aggregate value.

Marketing analytics war room with a glass board covered in colored sticky notes arranged like a data pipeline, an analyst pointing with a marker, abstract charts on a nearby screen, bright clean office, empty side space for hotspot overlays, no text, words, letters, numerals, logos. A campaign QA board has four zones: source events and campaigns, row filters for last week and signup type, a misplaced threshold note before grouping, and a campaign summary area after grouping. One sticky note is trying to filter campaign groups before the groups exist. Where is the issue on Elise's QA board? Events joined…

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