Skuteczne zapytania i modyfikowanie danych przy użyciu Transact-SQL

Opanuj podstawy języka T-SQL i pisz niezawodny kod dla Microsoft SQL Server i Azure SQL Database. Itzik Ben-Gan wyjaśnia kluczowe koncepcje języka T-SQL i pomaga w wykorzystaniu tej wiedzy w praktycznych zastosowaniach. Książka przedstawia zasady działania T-SQL i logikę działającą w tle. Następnie prowadzi czytelnika poprzez kluczowe zagadnienia, takie jak zapytania jednotabelowe, złączenia, podzapytania, wyrażenia tablicowe i operatory zbiorów. Dalej książka przedstawia bardziej zaawansowane zagadnienia, takie jak funkcje okna, tworzenie tabel przestawnych i grupowanie zbiorów. Wyjaśnione zostaną również techniki modyfikowania danych, pracy z tabelami tymczasowymi i obsługa transakcji, a także przegląd obiektów programowalnych.

Itzik Ben-Gan, MVP w dziedzinie Microsoft Data Platform, przedstawia:

•\tPodstawowe koncepcje SQL i jego matematyczne korzenie

•\tTworzenie tabel i wymuszanie integralności danych

•\tWykonywanie efektywnych zapytań przy użyciu wyrażenia SELECT

•\tOdpytywanie wielu tabel przy użyciu złączeń, podzapytań, wyrażeń tablicowych i operatorów zbiorów

•\tStosowanie zaawansowanych technik, takich jak funkcje okna, tabele przestawne i grupowanie zbiorów

•\tWstawianie, aktualizowanie, usuwanie i scalanie danych

•\tKorzystanie z transakcji w wielodostępnym środowisku

•\tWprowadzenie do obiektów programowalnych – od zmiennych i plików wsadowych po funkcje definiowane przez użytkownika, procedury składowane, wyzwalacze i dynamiczny kod SQL

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