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http://oss.timedia.co.jp/show/MySQL%C6%FC%CB%DC%B8%EC%A4%CE%CE%B9
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http://vivian.reverb.jp/mysql4.1.html
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MySql4.1ä»¥ä¸Šã®æ—¥æœ¬èªžã«é–¢ã™ã‚‹å•é¡Œç‚¹ã¾ã¨ã‚
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Storing Hierarchical Data in a Database â€” SitePoint
April 30, 2003Storing Hierarchical Data in a Database Key Takeaways Storing hierarchical data in a database can be achieved using two major approaches: the adjacency list model and the modified preorder tree traversal algorithm. The adjacency list model is more elegant and simple, but can be slow and inefficient for large trees due to the use of recursion. In the adjacency list method, each node i
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mysql:12071ã€€éšŽå±¤åŒ–ã•ã‚ŒãŸãƒ‡ãƒ¼ã‚¿ã‚’MySQLã§æ‰±ã†
From: zen kishimoto <zen kishimoto <zen@xxxxxxxxxx>> Date: Sat, 03 Sep 2005 09:24:15 -0700 Subject: [mysql 12071] éšŽå±¤åŒ–ã•ã‚ŒãŸãƒ‡ãƒ¼ã‚¿ã‚’MySQLã§æ‰±ã†ã€€ï¼ˆManaging Hierarchical Data in MySQLï¼‰ http://dev.mysql.com/tech-resources/articles/hierarchical-data.html ï¼ˆå›³ã¯ã“ã®ã‚µã‚¤ãƒˆã‚’å‚ç…§ã®ã“ã¨ï¼‰ Mike Hillyerè‘— åˆã‚ã« å¤šãã®ãƒ¦ãƒ¼ã‚¶ãƒ¼ã¯ä¸€å›žãã‚‰ã„ã¯SQLãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹å†…ã§ã€éšŽå±¤åŒ–ã—ãŸãƒ‡ãƒ¼ã‚¿ã‚’ æ‰±ã£ãŸã“ã¨ãŒã‚ã‚‹ã¨æ€ã„ã¾ã™ã€‚ãã®ã¨ãã¯ãƒªãƒ¬ãƒ¼ã‚·ãƒ§ãƒŠãƒ« ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã¯éšŽå±¤åŒ–ã—ãŸãƒ‡ãƒ¼ã‚¿ç”¨ã«é–‹ç™ºã•ã‚Œãªã‹ã£ãŸã¨è€ƒãˆãŸã¨æ€ã„ã¾ã™ã€‚ ãƒªãƒ¬ãƒ¼ã‚·ãƒ§ãƒŠãƒ«ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã®ãƒ†ãƒ¼ãƒ–ãƒ«ã¯éšŽå±¤åŒ–ã•ã‚Œã¦ãŠã‚‰ãš
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db4free.net - MySQL Database for free
db4free.net provides a testing service for the latest - sometimes even development - version of the MySQL Server. You can easily create an account for free and test your applications, for example to make sure that they still work after a MySQL version update. db4free.net is also a good resource for education and to make yourself familiar with new features that were introduced in new versions. db4f
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