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 ivan  ivan.revelli@synaptica.info  8 June 2010Convertire una stringa (sequenza di caratteri) in un dato di tipo data o timestamp in SQL standard è abbastanza semplice tramite il comando ‘cast‘ . Semplicemente scrivento : cast(’2010-3-31′ as datetime) oppure cast(’2010-3-31′ as timestamp) otteniamo la conversione, ma come sempre nel caso delle date non esiste la parola semplice, i formati con cui si [...] ivan ivan.revelli@synaptica.info 10 May 2010After installing Oracle 10g on an Ubuntu 9.04 system, i found that the Apex application was enabled only for the localhost. Some time is necessary open or close the access of apex from remote. To do this is only need to access to your oracle system by a dba user and run this sql command: to [...] ivan ivan.revelli@synaptica.info 17 March 2010Using JDBC with Oracle 10g i found this error : “ora 12519 tnsno appropriate service handler found”, today i found an article on Internet about.
ALTER SYSTEM SET PROCESSES=150 SCOPE=SPFILE;
after that i restarted my Oracle10gXe server on my server, and all works well !!! Marco marco.brendolini@makeallweb.it 17 March 2010Di questi tempi si parla tanto di virtualizzazione, in particolar modo applicata ai server, così che anche io ho deciso di utilizzare tale tecnologia per l’installazione di un web server. * Installazione di UBUNTU Server 9.10 minimale come HOST con installazione di VMWARE Server ivan ivan.revelli@synaptica.info 10 March 2010to raise an Exception from a Trigger, Stored Procedure or Function without needing anything you can use the function : raise_application_error. Syntax : raise_application_error(<your exception integer code>, <your string description>); ivan ivan.revelli@synaptica.info 19 February 2010by using some simple view in Oracle you can extract a lot of information about your DB schema, some explicit samples : (assuming that MyDBOwner is the owner of the DB and ACTIVITY is a table of a schema, this sample is succesfully tested on Oracle 10g)
– LIST OF USERS
SELECT OWNER,COUNT(DISTINCT TABLE_NAME) FROM ALL_TAB_COLUMNS [...] |
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