SQLãæ¸ãã¦ãã¦ãããã°ã«ã¼ããã¨ã«ããé ç®ãéè¨ãã¦æ大å¤ãæã¤è¡ã ããæ¤ç´¢ãããã¨ããããã ããã¾ã§ã¯ãã¾ãæ°ã«ããã«group byã¨éè¨é¢æ°MAXã使ã£ããµãã¯ã¨ãªãæ¤ç´¢æ¡ä»¶ã«ä½¿ããã¨ã§æ±ãã¦ãããã ããã©ã¼ãã³ã¹ããããªããã¨ããããä»åæ¹ãã¦æ¤è¨¼ãã¦ã¿ãã çµæãèªåã®ä¸ã§ã¯åæé¢æ°MAXã使ã£ã¦æ¤ç´¢æ¡ä»¶ã¨ããæ¹æ³ãããã©ã¼ãã³ã¹çã«ãã£ã¨ãããã¨ããçµè«ã«éããã 以ä¸ãOracle DB 12cã®ç°å¢ã§è¡ã£ãæ¤è¨¼ã«ã¤ãã¦ã¾ã¨ãã¦ã¿ãã ãªããã®æ¤è¨¼ã¯èªåã®ä¸ã§ã¯ä¸è¬æ§ãæã¤çµæã ã¨èãã¦ãããã ãã¼ã¿ã®ç¹æ§ããã¼ãã¦ã§ã¢ã¹ããã¯ã«ãã£ã¦ç°ãªãçµæã¨ãªãå¯è½æ§ã¯ãããããå¿ ããã®ç°å¢ã§æ¤è¨¼ãè¡ãå¿ è¦ãããã åé¡è¨å® Oracle DBæ¨æºã®ãµã³ãã«ã¹ãã¼ãã§ããSCOTTã¹ãã¼ãã®å¾æ¥å¡è¡¨(emp), é¨ç½²è¡¨(dept)ãç¨ããã é¨ç½²ãã¨ã«ããããã給ä¸ãæ大ã®å¾
{{#tags}}- {{label}}
{{/tags}}