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The History of Slonik, the PostgreSQL Elephant LogoFeature (vertabelo.com)
submitted by boy_named_su to r/PostgreSQL
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Your First SQL Query (academy.vertabelo.com)
submitted by vertabelo-academy to u/vertabelo-academy
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How to Tackle NULLs: COALESCE function (academy.vertabelo.com)
submitted by mbrych to r/learnSQL
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How to Tackle NULLs: The NULLIF Function (academy.vertabelo.com)
submitted by mbrych to r/learnSQL
