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Jonathan Lewis's tweets

Last thing on Friday night (for the UK) must be the worst time to publish a new technical blog note. Pipelined tabl… https://t.co/PebJhFeS2z1 week 2 days ago
@tmmdv @OracleSK Doesn't need a smiley - that's exactly what it is. If you're an extreme specialist a lot of what… https://t.co/oySqjk1bfP1 week 2 days ago
@AndrewSayer_ I was thinking of dual being accessed very frequently in a query / loop, rather than just once. Gues… https://t.co/iuyB8k4JK91 week 2 days ago
@AndrewSayer_ The original code was doing something that foreced Oracle to access sys.dual instead of x$dual, so cr… https://t.co/DtTgzbaLZM1 week 2 days ago
@OracleSK JL's 4th Law of consultancy: If you're an (independent) Oracle performance consultant you don't have to… https://t.co/p5Br73v82S1 week 3 days ago
RT @OracleSK: Be aware of an edge case with NDV algorithm and histograms on a single value column with Oracle version > 12 — 1 week 3 days ago
@AndrewSayer_ Looking forward to hearing the answer. — 1 week 3 days ago
@AndrewSayer_ Long version: https://t.co/LVr8KqPzVb1 week 3 days ago
@AndrewSayer_ Anything to do with Oracle knowing dual is a single row and not hiding constants in "select {constant… https://t.co/gD8qSh8Oaf1 week 3 days ago
RT @TanelPoder: @OracleSK @martinberx @FranckPachot @OracleDatabase Haha yes indeed, but you still can't run *proper* SQL via the oradebug… — 1 week 4 days ago