Not on the original topic, but relevant: The day I discovered I could Merge into a CTE, and thus limit the target rows with whatever Where clause I felt like, was a very good day.
CTEs, used appropriately, are a great way to simplify otherwise complex data manipulation tasks.
- Gus "GSquared", RSVP, OODA, MAP, NMVP, FAQ, SAT, SQL, DNA, RNA, UOI, IOU, AM, PM, AD, BC, BCE, USA, UN, CF, ROFL, LOL, ETC
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"Nobody knows the age of the human race, but everyone agrees it's old enough to know better." - Anon