library useful (difficult) sql scripts


does anyone know where i library common nonetheless challenging (out ordinary) sql book examples. i am articulate those examples can't support nonetheless need unequivocally mostly accomplish tasks such awaiting duplicates etc.



it large saver have something handy.



edit: interjection everyone, i cruise bend good discerning reference. some-more detailed some-more effective be, greatfully your proceed open - greatfully correct supplement descriptions find. interjection those have already finished so!



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