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ãªã¬ã¼ã·ã§ãã«ãã¼ã¿ãã¼ã¹ã®åå¼·ç¨ã«ãæä½éã®æ©è½ããã£ããªã¬ã¼ã·ã§ãã«ãã¼ã¿ãã¼ã¹ãä½ã£ã¦ã¿ã¾ããã ä»åå®è£ ããæä½éã®æ©è½ã¨ããã®ã¯ãå°å½±(select)ã»é¸æ(where)ã»çµå(join)ã§ãã ãã¼ãã«ä½æ ãã¼ãã«ä½æã¯æ¬¡ã®ããã«ãªãã¾ãã Table shohin = Table.create("shohin", new String[]{"shohin_id", "shohin_name", "kubun_id", "price"}); shohin.insert(1, "ããã", 1, 300) .insert(2, "ã¿ãã", 1, 130) .insert(3, "ãã£ãã", 2, 200) .insert(4, "ããã", null, 250) .insert(5, "ãããã", 3, 180); System.out.println(shohin);
What is Apache Cassandra? Apache Cassandra is an open source NoSQL distributed database trusted by thousands of companies for scalability and high availability without compromising performance. Linear scalability and proven fault-tolerance on commodity hardware or cloud infrastructure make it the perfect platform for mission-critical data.
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hsqldb is a relational database engine written in Java, with a JDBC driver, supporting a rich subset of ANSI-92 SQL (BNF tree format). It offers a small (less than 160k), fast database engine which offers both in memory and disk based tables. Embedded and server modes are available. Additionally, it includes tools such as a minimal web server, in-memory query and management tools (can be run as ap
latest official release 25 October 2024 Download latest version 2.7.4 Latest version 2.7.4 works with JDK 8 and above. The How To pages are regularly updated and include a list of useful links. commercial support: Commercial support for business users of HSQLDB is available from the HyperXtremeSQL web site. A higher-performance database engine based on HSQLDB, with several additional features such
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