6. id name pass is_deleted 1 ryu xxx FALSE 2 ken xxx FALSE 3 honda xxx TRUE 8. id name pass is_deleted 1 ryu xxx FALSE 2 ken xxx FALSE 3 honda xxx TRUE 3 honda xxx FALSE
ãµã¼ãã¹çµäºã®ãç¥ãã ãã¤ãYahoo! JAPANã®ãµã¼ãã¹ããå©ç¨ããã ãèª ã«ãããã¨ããããã¾ãã ã客æ§ãã¢ã¯ã»ã¹ããããµã¼ãã¹ã¯æ¬æ¥ã¾ã§ã«ãµã¼ãã¹ãçµäºãããã¾ããã ä»å¾ã¨ãYahoo! JAPANã®ãµã¼ãã¹ããæ顧ãã ããã¾ãããããããããé¡ããããã¾ãã
PostgreSQL ç·¨4 - ãã¼ãã«ä½æãå¶ç´ãé ç®ã¿ã¤ãããã¼ä½æãé åºä½æ â æ¥æ¬èªåé¡ ã»æ¥æ¬èª ODBC çµç±ã®ã¢ã¯ã»ã¹ã§ã¯ãé ç®åããã¼ã¿ã¨ãã¦æ¥æ¬èªã使ç¨ãã ãã¨ã«ä½ãåé¡ããªããããã¯ãECU_JP ãã©ã¡ã¿ã§ã³ã³ãã£ã°ã¬ã¼ã·ã§ã³ ããããããã¨æãã ããããpsql ã ipgsql ã§ã¯ãæ¥æ¬èªããã¾ãæ±ããªãã ããã¹ããã¡ã¤ã«ããã®å®è¡çãè¡ã£ãããã¡ã§ããã ECU ã³ã¼ãã§æå®ããå¿ è¦ãããã®ãã¨ãæ¥æ¬èª EUC ã³ã¼ãã§ãSQL ã®ã ãã¹ããä½æããã\iãã§å®è¡ãããããæ£å¸¸ã«æ¥æ¬èªãå¦çã§ããã ä½ããpsql ã® select 表示ã¯åããã(^^; (Cygwin 2.05b 㨠less290i.tgz 㧠psql ã§ã® select æ¥æ¬èªè¡¨ç¤ºå¯è½ã) â ãã¼ã¿ãã¼ã¹ä½æ ã»PATH ã®åªå é ä½ã MySQL ã®æ¹ãé«ãã£ããããcrea
å··ã§ã¯ããã°ã©ãã³ã°è¨èªã®æéãã¹ã¿ã¼ãæµè¡ã£ã¦ãã®ã§ãMySQLãåæ¦ããã ã管çè åãã ã¾ãã¯ãã¦ã³ãã¼ãã¨ã¤ã³ã¹ãã¼ã«ãã¦ã³ãã¼ããµã¤ã http://dev.mysql.com/downloads/ ãã¤ããªã«ã¯ã¤ã³ã¹ãã¼ã«ããã±ã¼ã¸ï¼Windows=MSIãMac=DMGãLinux=RPMã¨ãï¼ã¨ã¢ã¼ã«ã¤ãï¼*NIX=tar.gz/Windows=zipï¼ããããã©ãåå¿è ã¯é»ã£ã¦ããã±ã¼ã¸ããã§ã¤ã¹ãã¤ã³ã¹ãã¼ã«ã¯ã¦ã£ã¶ã¼ãã«å¾ãã ããè±èªã ãã©ããã¯ã¬ãã³ï¼ ããã±ã¼ã¸ãªãã¸ããªãããOSã使ã£ã¦ããªãããªãã¸ããªããã¤ã³ã¹ãã¼ã«ããã®ãããã ãä¾ãã°ã shell> sudo yum install mysqlã¨ã shell$gt; sudo apt-get install mysqlã¨ããããã¯æ¥½ãã³ã ãã©MySQLã®ãã¼ã¸ã§ã³ãã¡ãã£ã¨å¤ããªãã®ã§æ³¨æã ãã¡ãã
MySQLã§ãã¬ããªã±ã¼ã·ã§ã³ãã¼ã¹ã®HAãªæ§æã«ã¤ãã¦èããã¡ã¢ã§ãã 3å°(ã¨ããã2å°ï¼1å°)ãããããªãã¨æã£ã¦ãã¦ãååã¯ãã®çç±ããå¾åã§ã¯{ãã¹ã¿,ã¹ã¬ã¼ã}ã{åèµ·ä¸è½ã«ãªã£ã,ã¡ãã£ã¨ãã¦ã³ãã¦ãã復帰ãã}å ´åã®ãªã«ããªãã©ã³ã«ã¤ãã¦æ¸ãã¾ãã ä»ã®ã¨ããã¯ããããã¹ãããªã¨æã£ã¦ããã®ã§ããããããããã»ããããã¨æãï¼ãããããããããï¼ããªã©ãªã©ã®ãæè¦ã¯ã³ã¡ã³ããTBãªã©ã§ããã ããã¨ããããã§ãã ã´ã¼ã« ãã¹ã¿ãè½ã¡ã¦ããã¼ããå¯ã¦ããããããã«ããã ãªã«ããªã®ä½æ¥ã¯ã§ããã ãåç´ã«ããã¤ãçæéã§å®äºããããã«ããã ããã©ãããã®ã¯ãã åºæ¬æ§æãæ¹é 2å°ï¼1å° ãµã¼ãã¹ã§ä½¿ãã®ã¯2å° (db1, db2) ãã1å°ã¯ç®¡çç¨ (db3) ã¹ã¬ã¼ããå¤æ°ä¸¦ã¹ãæ§æã«ã¯ããªã å°æ°å¢ããã¨ç®¡çã³ã¹ããä¸ãã ãã¹ã¿ãã¦ã³æã®ãã§ã¤ã«ãªã¼ãã¨ãã®ãã§ã¤ã«ã
ã¡ãã£ã¨ãã£ããâãªã¿ã¤ãã«ãã¤ãã¦ãã¾ã£ãããä»æ¥ã¯ç¬æã¨åè¦ã§MySQLãé«éåããæ¹æ³ã10åç´¹ä»ããããMySQLãµã¼ãããã¥ã¼ãã³ã°ããã¨ããåæå°å ¥ããå ´åãªã©ã«åèã«ãã¦ãããããã 1. ãããã¡ãå¢ãããã¾ãã¯æ¸ãã ãã¥ã¼ãã³ã°ã®åºæ¬ä¸ã®åºæ¬ã§ããããé©åãªãããã¡ãµã¤ãºãè¨å®ãããã¨ã¯ããã©ã¼ãã³ã¹ãã¥ã¼ãã³ã°ã®è¦ã§ããã主ãªãããã¡ã¯æ¬¡ã®éãã innodb_buffer_pool_sizeã»ã»ã»InnoDBã ããå©ç¨ããå ´åã¯ç©ºãã¡ã¢ãªã®7ã8å²ç¨åº¦ãå²ãå½ã¦ãæãéè¦ãªãããã¡ã§ãããä½è«ã ããå®éã«ã¯ããã§å²ãå½ã¦ãå¤ã®5ã10%ããããå¤ãã«ã¡ã¢ãªã使ãã®ã§æ³¨æãå¿ è¦ã ã key_buffer_sizeã»ã»ã»MyISAMã ããå©ç¨ããå ´åã¯ã空ãã¡ã¢ãªã®3å²ç¨åº¦ãå²ãå½ã¦ãã¨ãããæ®ãã¯ãã¡ã¤ã«ã·ã¹ãã ã®ãã£ãã·ã¥ç¨ã«æ®ãã¦ãããã sort_buffer_
æ£ææ©ã ã¤ã³ãã«ã¨ã³ã¶ã«ããã£ã¦å¯è¾¼ãã mikioã§ããé»è»ã«ä¹ãæãç¹è¯è¡ãªã©ã«åºãæã¯ãã¹ã¯çç¨ãå¿ é ã§ããããã¦ä»åã¯ãTokyo Cabinetã§å®è£ ãããã¼ãã«æ¹å¼ã®ãã¼ã¿ãã¼ã¹ã«ã¤ãã¦ç´¹ä»ãã¾ããæå¤ã«ã©ããã¦å¼·åãªæ©è½ãªã®ã§ããã®ãã¿ã¯é£è¼ãããã¨ãäºåãã¾ãã ãã¼ãã«ãã¼ã¿ãã¼ã¹ã¨ã¯ ç°¡åã«è¨ãã°ããªã¬ã¼ã·ã§ãã«ãã¼ã¿ãã¼ã¹ã®ãã¼ãã«ã®ããã«ãè¤æ°ã®åãããªãã¬ã³ã¼ããæ ¼ç´ã§ãããã¼ã¿ãã¼ã¹ã§ããSQLã表çµåãªã©ã®è¤éãªæ©è½ã¯ãµãã¼ããã¾ãããããã®ã¶ãé«éã«åä½ãã¾ããã¤ã¾ããDBMã®é度ã§åããªã¬ã¼ã·ã§ãã«é¢¨ãã¼ã¿ãã¼ã¹ã§ãï¼å³å¯ã«ã¯ãªã¬ã¼ã·ã§ãã«ãã¼ã¿ãã¼ã¹ã§ã¯ããã¾ããï¼ã TCã®åºæ¬ã¨ãªãããã·ã¥ãã¼ã¿ãã¼ã¹ã¯ãåç´ãªkey/valueåã®ãã¼ã¿ãã¼ã¹ã§ãããã¤ã¾ããã¼ã«ãå¤ã«ãã¹ã«ã©ï¼æ°å¤ãæååãªã©ã®ç¹ã«æ§é ãæããªãåä¸ã®å¤ï¼ããæ ¼ç´ãããã¨ã¯ã§ãã¾ãã
ãªãªã¼ã¹ãé害æ å ±ãªã©ã®ãµã¼ãã¹ã®ãç¥ãã
ææ°ã®äººæ°ã¨ã³ããªã¼ã®é ä¿¡
å¦çãå®è¡ä¸ã§ã
j次ã®ããã¯ãã¼ã¯
kåã®ããã¯ãã¼ã¯
lãã¨ã§èªã
eã³ã¡ã³ãä¸è¦§ãéã
oãã¼ã¸ãéã
{{#tags}}- {{label}}
{{/tags}}