The following table shows the ADO Data Type mapping between Visual Basic, Access, SQL Server, Oracle, and the .NET Framework.
CSVãã¡ã¤ã«ããOracleã®ãã¼ãã«ã¸ãã¼ã¿ãæµãè¾¼ããã¼ã«ã 大éã®insertæãçºè¡ããããã¯ãæç¶é«éã ãã¼ã¿ã§ããCSVãã¡ã¤ã«ãåºå®é·ãã¡ã¤ã«ã¨ããã¼ãæ¹æ³ãæå®ããã³ã³ããã¼ã«ãã¡ã¤ã«ãç¨æ ãã¦å®è¡ããã ï¼CSVãã¡ã¤ã«ããã®ãã¼ãã¯ãã®SQL*Loaderã使ããããCSVåºåã«ã¯æ¨æºçãªæ¹æ³ã¯ç¡ããããã¦ãselectæã§å å·¥ããæ¹æ³ããã使ããããããã ãã®SQLæããã¡ãã¡æ¸ãã®ã¯å°ã é¢åãªã®ã§ãSQLçæç¨Excelãã¯ããä½ã£ã¦ã¿ã¾ããï¼ ã³ã³ããã¼ã«ãã¡ã¤ã« CSVãã¡ã¤ã«ã®åé ç®ã¨ãã¼ãã«ã®é ç®ã¨ã®é¢é£ä»ãçãæå®ããã ï¼ã³ã³ããã¼ã«ãã¡ã¤ã«ãããã¹ãã¨ãã£ã¿ã§æ¸ãã®ã¯ãã£ããé¢åãªã®ã§ãã³ã³ããã¼ã«ãã¡ã¤ã«ä½æç¨Excelãã¯ããä½ã£ã¦ã¿ã¾ããï¼CSVãã¡ã¤ã«ç¨ãåºå®é·ãã¡ã¤ã«ç¨ï¼ï¼ ä¾ï¼emp.ctlï¼ OPTIONS(LOAD=100,SK
ãã¼ã¿åã®å¤æ´ããALTER TABLE TABLEå MODIFYãã使ç¨ããã ï¼é¢é£è¨äºï¼ ï¼SQL:Oracle:表ï¼ãã¼ãã«ï¼å®ç¾©ãå¤æ´ããã:åã®æ¡æ°å¤æ´ãªã© ããã§æ³¨æç¹ããªããã°ãªããªãã®ã¯ã ä¾ãã°ããåAããVARCHAR2ããNUMBERã«ãã¼ã¿åãå¤æ´ãããããªæã æ¢ã«ãåAãã«âABCDEâã¨ãã£ãæåãã¼ã¿ãå ¥ã£ã¦ããã¨ã âABCDEâã¯æ°å¤åã«ã¯é©åããªãã®ã§ããã¡ããMODIFYæã«ã¨ã©ã¼ã¨ãªãã ããããå ´åã¯ããåAãã®ãã¼ã¿ãã©ããããï¼ã¨ããåé¡ãã¯ãªã¢ã«ãã¦ããã ãã¼ã¿ã®æ´æ°ãè¡ã£ãä¸ã§ãMODIFTããã â ä¾ï¼ãã¼ã¿ãNULLã§åæåããå ´åï¼ç¾ç¶ãåAã¯VARCHAR2(5)ï¼ UPDATE 表A SET åA = NULL; COMMIT; ALTER TABLE 表A MODIFY(åA NUMBER(5)); ï¼é¢é£è¨äºï¼ ï¼SQ
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