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SQL/JRT, or ''SQL Routines and Types for the Java Programming Language'', is an extension to the SQL standard first published as ISO/IEC 9075-13:2002 (part 13 of SQL:1999). SQL/JRT specifies the ability to invoke static Java methods as routines from within SQL applications, commonly referred to as "Java stored procedures". SQL/JRT also calls for the ability to use Java classes as SQL structured user-defined types. The two parts of the extension originate from the earlier ANSI SQLJ part 1 and 2 standards (not to be confused with SQLJ part 0, which defined an embedding of SQL into Java, later standardized by ISO as SQL/OLB.) ==Example== SQL/JRT allows a Java function to be called from SQL code like this:〔 CREATE FUNCTION sinh(v DOUBLE) RETURNS DOUBLE LANGUAGE JAVA DETERMINISTIC NO SQL EXTERNAL NAME 'CLASSPATH:java.lang.Math.sinh' SELECT sinh(doublecolumn) FROM mytable SQL/JRT also allows Java code to dynamically generate tables using a java.sql.ResultSet object. The result sets returned are converted to SQL tables and can be used anywhere a table or view can be used.〔抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「SQL/JRT」の詳細全文を読む スポンサード リンク
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