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        如何为内存 HSQL 编写自定义函数

        How to write custom functions for in memory HSQL(如何为内存 HSQL 编写自定义函数)

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                  本文介绍了如何为内存 HSQL 编写自定义函数的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着跟版网的小编来一起学习吧!

                  问题描述

                  我想在 HSQL 中编写一个简单的函数,以便向后兼容 DB2 函数.从理论上讲,我应该能够在 java 中编写一个自定义函数并将其挂接到 HSQL 中.有没有这方面的指导/文档?

                  I want to write a simple function in HSQL so that it is backwards compatible with DB2 functions. In theory I should be able to write a custom function in java and hook it into HSQL. Is there any direction/documentation on just that?

                  推荐答案

                  HSQLDB 指南中记录了用户定义的函数.有关用 Java 编写的函数,请参阅本节.

                  User defined functions are documented in the HSQLDB Guide. See this section for functions written in Java.

                  http://hsqldb.org/doc/2.0/guide/sqlroutines-chapt.html#src_jrt_routines

                  您还可以用 SQL 编写函数,这在指南的同一章中有记录.

                  You can also write your functions in SQL, which is documented in the same chapter of the Guide.

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