User-Defined Functions and Stored Procedures In addition to the built-in functions, this database supports user-defined Java functions. In this database, Java functions can be used as stored procedures as well. A function must be declared (registered) before it can be used. A function can be...
向H2数据库注册自定义的数据库函数 9、编辑自定义函数类H2DBFunctionExt.java 1packagecom.test.h2.function;23importjava.util.UUID;45/**6* 对H2数据库函数的扩展7*@authorhd8* @date 2019-05-28 18:46:079*10*/11publicclassH2DBFunctionExt {1213/**14* 用法:SELECT myid();15*@return16*/17publi...
jdbc:h2:[file:][<path>]<databaseName> 例如: jdbc:h2:~/test //连接位于当前系统用户目录下的test数据库(如果数据库不存在会自动创建) jdbc:h2:file:/data/sample //连接/data目录下的sample数据库(如果数据库不存在会自动创建) jdbc:h2:file:E:/H2/gacl //连接E:/H2目录下的gacl数据库(如果数据库...
The official way to upgrade is to do a BACKUP of your existing databaseUSING YOUR CURRENT VERSION OF H2. Then create a fresh databaseUSING THE NEW VERSION OF H2, then perform a SCRIPT to load your data. Assets13 Loading 👍4 👍 ...
The database schema did not change. The DDL on the particular table is CREATE SEQUENCE common.currency_ref_seq START WITH 0; CREATE TABLE common.currency ( id_currency VARCHAR(3) PRIMARY KEY NOT NULL , ref_currency NUMBER(3) NOT NULL , description VARCHAR(255) ); ALTER TABLE common.curre...
H2数据库是一个基于Java的关系型数据库管理系统,它支持前缀索引。 前缀索引是一种索引技术,它允许在查询时只匹配索引列的前缀部分,而不是整个值。这种索引可以提高查询性能,特别是在处理大量数据时。 ...
DatasourceApplicationFile_CO21H2Setup 此设备上存在的此类型的对象总数。 DatasourceApplicationFile_CU23H2Setup 此设备上的这一特定对象类型的计数。 DatasourceApplicationFile_NI22H2 此设备上存在的此特定对象类型的数量计数。 DatasourceApplicationFile_NI22H2Setup 此设备上存在的此类型的对象总数。 Datasour...
INTERNAL: Use CONVERT function for toNumber. monthsBetweenOperator public staticExpressionOperatormonthsBetweenOperator() INTERNAL: Use MONTH function for MONTH_BETWEEN. isH2 public booleanisH2() Specified by: isH2in interfaceorg.eclipse.persistence.internal.databaseaccess.Platform ...
())).thenReturn(Factory.createActualData(false,false,false,"HUF",Collections.singletonList("channels")));myService.updateFunction(dg);Optional<MyObject>optResult=repositoryName.findByProvidedIds("id1","id2");assertTrue(optResult.isPresent());assertNotSame(optResult.get().isA(),myObjectSavedIn...
We use essential cookies to make sure the site can function. We also use optional cookies for advertising, personalisation of content, usage analysis, and social media. By accepting optional cookies, you consent to the processing of your personal data - including transfers to third parties. Some...