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m-kawato id:m-kawato

databaseã«é–¢ã™ã‚‹m-kawatoã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (4)

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m-kawato 2013/03/19
database
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ç±³å›½ã®è¨ˆç®—æ©Ÿå¦ä¼šã¨ã—ã¦çŸ¥ã‚‰ã‚Œã‚‹ACMãŒä¸»å‚¬ã—ãŸã‚¯ãƒ©ã‚¦ãƒ‰ã‚³ãƒ³ãƒ”ãƒ¥ãƒ¼ãƒ†ã‚£ãƒ³ã‚°ã®ã‚·ãƒ³ãƒã‚¸ã‚¦ãƒ ã€ŒACM Symposium on Cloud Computing 2010ã€ï¼ˆACM SOCC 2010ï¼‰ãŒ6æœˆ10æ—¥ã€11æ—¥ã«ã‚¤ãƒ³ãƒ‡ã‚£ã‚¢ãƒŠå·žã‚¤ãƒ³ãƒ‡ã‚£ã‚¢ãƒŠãƒãƒªã‚¹ã§é–‹å‚¬ã•ã‚Œã¾ã—ãŸã€‚ åŸºèª¿è¬›æ¼”ã§ã¯ã€ã‚»ãƒ¼ãƒ«ã‚¹ãƒ•ã‚©ãƒ¼ã‚¹ã®ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ã®è§£èª¬ãŒè¡Œã‚ã‚Œã¾ã—ãŸã€‚è¤‡æ•°ã®åˆ©ç”¨è€…ã®ãƒ‡ãƒ¼ã‚¿ã‚’1ã¤ã®ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã«æ ¼ç´ã—ã¦ã„ã‚‹ã‚»ãƒ¼ãƒ«ã‚¹ãƒ•ã‚©ãƒ¼ã‚¹ã®ã‚¯ãƒ©ã‚¦ãƒ‰ã§ã¯ã€ã©ã®ã‚ˆã†ãªãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹æ§‹é€ ã§ã€ã¾ãŸæ¤œç´¢ã®ã‚ªãƒ—ãƒ†ã‚£ãƒžã‚¤ã‚ºãªã©ã¯ã©ã†ã—ã¦ã„ã‚‹ã®ã—ã‚‡ã†ã‹ï¼Ÿ ï¼ˆã“ã®è¨˜äº‹ã¯ã€Œã‚»ãƒ¼ãƒ«ã‚¹ãƒ•ã‚©ãƒ¼ã‚¹ã®ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ï¼ˆç‰©ç†ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ç·¨ï¼‰ï½ž Podã«ã‚ˆã‚‹ã‚¹ã‚±ãƒ¼ãƒ«ã‚¢ã‚¦ãƒˆã€ã®ç¶šãã§ã™ï¼‰ ãƒžãƒ«ãƒãƒ†ãƒŠãƒ³ãƒˆã¨ã—ã¦ã®ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹æ§‹é€ ã¨æœ€é©åŒ– ã‚»ãƒ¼ãƒ«ã‚¹ãƒ•ã‚©ãƒ¼ã‚¹ã®å†…éƒ¨ã§Oracle RACã‚’ä½¿ã£ã¦ã„ã‚‹ã“ã¨ã¯èª¬æ˜Žã—ãŸãŒã€ã™ã¹ã¦ã®ãƒ¦ãƒ¼ã‚¶ãƒ¼ãŒå…±æœ‰ã™ã‚‹ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã§ã€ã©ã®ã‚ˆã†ãªæ§‹
m-kawato 2010/08/04
salesforce

database
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SQLer ç”Ÿå³¶å‹˜å¯Œ ã®æ—¥è¨˜
m-kawato 2010/06/28
security

database
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ã€Žã‚¨ãƒ³ã‚¿ãƒ¼ãƒ—ãƒ©ã‚¤ã‚ºRailsã€ã«å¦ã¶ä¼æ¥ãƒ¦ãƒ¼ã‚¶ã®ãŸã‚ã®Railsã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£
This document discusses database modeling for a system with companies, departments, and employees. It describes setting up composite primary keys to link the three tables together and using associations and joins to efficiently query across the tables. Methods are defined on the Company model to count employees. A view is created to select large companies with over 1000 employees.Read less
m-kawato 2009/07/20
rubykaigi2009

ruby

rails

database
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