About abs
Numbers in JPQL and Criteria Queries
Shows how numbers, arithmetic expressions and numeric functions and operators (MOD, ABS) can be used in JPQL queries.... Arithmetic Operators The ABS Function The MOD Function The SQRT Function ... value and a double value is double . The ABS Function The ABS function removes the minus sign from a specified ...
abs(x)
Create an expression that returns the absolute value of its argument.(Method of javax.persistence.criteria.CriteriaBuilder)
JPA Query Expressions (JPQL / Criteria)
Describes JPA query (JPQL / Criteria API) expressions (literals, operators and functions).... arguments. See JavaDoc Reference Page... , abs abs(x) CriteriaBuilder's method Create an expression that returns ...
JPA Criteria API Queries
Explains how to use the JPA Criteria API (CriteriaBuilder, CriteriaQuery, etc.) to build JPQL like queries.... arguments. See JavaDoc Reference Page... , abs abs(x) CriteriaBuilder's method Create an expression that returns ...
FROM clause (JPQL / Criteria API)
Explains how to use the FROM clause and JOIN expressions in a JPA/JPQL query.... cannot be one of the following reserved words: ABS, ALL, AND, ANY, AS, ASC, AVG, BETWEEN, BIT_LENGTH, BOTH, BY, CASE, ... in the list above are case insensitive. Therefore, ABS, abs, Abs and aBs are all invalid variable names. FROM and JOIN in ...
javax.persistence.criteria.CriteriaBuilder
Used to construct criteria queries, compound selections, expressions, predicates, orderings.(Interface of JPA)
[ODB1] Chapter 4 - JDO Metadata
Shows how to define JDO metadata for persistence capable classes. A JDO metadata file is an XML file with a '.jdo' suffix, containing information about one or more persistent classes. All the persistent classes, and only them, have to be declared in a metadata file. The metadata is used first by the JDO Enhancer, and ...
Join performance in Objectdb
select count(e) from Meta e, ImageNet i, Page p where e.idImage=i.id and e.idPage=p.id; So simple a command cause me half an hour and is running now! Each table has about 160K records. What formula can predict the time for such counting? TIA #1 2011-08-27 08:37 SELECT count ( e ) FROM Meta e , ImageNet i , Page p WHERE e . idImage = i . ...
ObjectDB Object Database Features
ObjectDB provides a rich set of features, many of them as the result of supporting the JPA and JDO APIs.... Arithmetic operators & functions (+, -, *, /, %, ABS, SQRT, MOD). JPQL string operators ...
