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Meta
Monthly Archives: January 2012
Servizio Windows – Visual Basic 2010 – Framework 4
Di seguito del codice Visual Basic che illustra un semplicissimo servizio Windows che scrive nel log.
Posted in Microsoft .NET Visual Basic, Programming Languages
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Oracle Like Escape
I caratteri “%” e “_” sono utilizzati nella sintatti SQL del comando LIKE di Oracle come caratteri jolly. Se si vogliono utilizzare come valori nel filtro, è necessario specificare la clausola Escape. Es: Per maggiori dettagli: http://www.adp-gmbh.ch/ora/sql/like.html
Posted in Database, Oracle, Structured Query Language
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Oracle NVL Functions
NVL è un utile funzione Oracle che consente di sostituire NULL con una stringa. Sintassi NVL(expr1, espr2) Se expr1 è nullo, poi ritorna NVL espr2. Se espr1 non è nullo, poi ritorna espr1. Alcuni esempi: Per maggiori dettagli http://docs.oracle.com/cd/B19306_01/server.102/b14200/functions105.htm
Posted in Database, Oracle, Structured Query Language
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