October 2018
Intermediate to advanced
296 pages
8h 55m
Polish
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Rozdział 23. Bazy danych i SQL
Pamięć jest jednocześnie naszym największym przyjacielem i najgorszym wrogiem.
— Gilbert Parker
Dane, z których będziesz korzystać podczas pracy, będą często znajdowały się w bazach danych — systemach zaprojektowanych z myślą o wydajnym przechowywaniu i odczytywaniu danych. Wiele z tych systemów to tzw. relacyjne bazy danych, takie jak np. Oracle, MySQL i SQL Server, które przechowują dane w tabelach. Dane zapisane w tabelach można przetwarzać za pomocą deklaratywnego strukturalnego języka zapytań SQL.
Znajomość języka SQL jest niezbędna w pracy analityka. W tym rozdziale utworzymy bazę NotQuiteABase — opracujemy pythonową implementację czegoś, co nie do końca jest bazą danych. Podczas lektury tego rozdziału poznasz ...
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