{"id":27868,"date":"2018-01-30T22:30:25","date_gmt":"2018-01-30T22:30:25","guid":{"rendered":"http:\/\/www.labeljoy.com\/it\/?page_id=27868"},"modified":"2019-05-03T09:19:16","modified_gmt":"2019-05-03T09:19:16","slug":"importare-i-dati-da-un-file","status":"publish","type":"page","link":"https:\/\/www.labeljoy.com\/it\/aiuto-lj6\/importare-i-dati-da-un-file\/","title":{"rendered":"Importare i dati da un file"},"content":{"rendered":"<div id=\"help-guide\"><!-- lj6_1860.htm -->\n<!--<link href=\"styles.css\" rel=\"stylesheet\" type=\"text\/css\" \/>-->\n<p class=\"title\">Caricamento dati da un file<\/p>\n<p class=\"body\">Dopo aver selezionato il tipo di file da cui si desidera caricare i dati, viene richiesto di cliccare sulla casella di dialogo<em> Apri file<\/em>, dove &egrave; possibile <strong>selezionare il file contenente i dati a cui collegare il set selezionato<\/strong>.<br \/> Dopo aver selezionato il file, <strong>inserire eventuali informazioni aggiuntive necessarie<\/strong> per accedere ai dati nel file, ad esempio password o informazioni sulla colonna. Ad esempio, nel caso in cui si stiano caricando dati da un file di database di Microsoft Access, sar&agrave; possibile inserire la password se il file &egrave; protetto da password. Se si utilizza un file Excel, &egrave; possibile specificare se la <em>prima riga contiene le intestazioni di colonna<\/em>.<\/p>\n<p class=\"body\">Se il file selezionato &egrave; composto da<strong> pi&ugrave; tabelle o fogli di lavoro<\/strong>, questi verranno caricati e elencati nella casella combinata centrare schermo, dopo aver cliccato sul pulsante <em>Carica fogli di lavoro<\/em> (o <em>carica tabelle,<\/em> a seconda del contesto). A questo punto &egrave; possibile caricare i dati utilizzando due diversi approcci:<\/p>\n<ul>\n<li class=\"body\"><strong>Selezionare la tabella (o il foglio di lavoro) da cui si desidera caricare i dati,<\/strong> dall'elenco delle tabelle disponibili.<\/li>\n<li class=\"body\"><strong>Selezionare l'ultima voce \"SQL ...\" <\/strong>e inserire una query SQL da eseguire per la sorgente dati selezionata (per utenti avanzati).<\/li>\n<\/ul>\n <p class=\"note\"><strong>Nota<\/strong>:<br>\nIl risultato della query dipender&agrave; dal tipo di sorgente dati selezionata. La query<strong> deve essere<\/strong> una query <em>SELECT <\/em>e <strong>deve essere conforme<\/strong> all'implementazione SQL supportata dalla sorgente dati.<br \/> La connessione alla sorgente dati sottostante<strong> &egrave; sempre <\/strong>una<em> connessione <\/em><strong>di sola lettura<\/strong> e i dati di origine<strong> non vengono mai modificati da Labeljoy<\/strong>.<br \/> Se la query non pu&ograve; essere eseguita, <strong>verr&agrave; mostrato un messaggio di errore<\/strong>.<br \/> Molti siti Web offrono risorse che consentono di apprendere e scrivere query SQL di base. Ecco alcuni link utili:<br>  \n<br>\n<a href=\"https:\/\/www.sqltutorial.org\/\">www.sqltutorial.org<\/a><br> <a href=\"https:\/\/beginner-sql-tutorial.com\/sql.htm\">beginner-sql-tutorial.com\/sql.htm<\/a><\/p>\n<p class=\"note\"><strong>Nota<\/strong>:<br>\nLa quantit&agrave; di dati caricati<strong> potrebbe ridurre le prestazioni del sistema<\/strong> quando vengono utilizzate sorgenti dati di grandi dimensioni. Per assicurarsi che Labeljoy mantenga l'utilizzo della memoria entro un intervallo accettabile, si consiglia di evitare di<strong> caricare intere tabelle<\/strong> con enormi quantit&agrave; di record. A seconda delle prestazioni del sistema, si consiglia di evitare il pi&ugrave; possibile il caricamento di sorgenti dati di <strong>dimensioni superiori<\/strong> a 100.000 record.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":12,"featured_media":0,"parent":27200,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"page-template-left-sidebar.php","meta":{"inline_featured_image":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":{"0":"post-27868","1":"page","2":"type-page","3":"status-publish","5":"infinite-scroll-item"},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.8 - aioseo.com -->\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/www.labeljoy.com\/it\/aiuto-lj6\/importare-i-dati-da-un-file\/\" \/>\n\t<meta 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