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Manual
29

DELETE Queries in JPA/JPQL

instances: DELETE FROM Country       // no variable DELETE FROM Country c     // an optional variable DELETE FROM Country AS c  // AS + an optional variable ObjectDB supports using the java.lang ... cannot include multiple variables and JOIN, and cannot include the GROUP BY, HAVING and ORDER BY clauses
Manual
29

ORDER BY clause (JPQL / Criteria API)

Alias variables are referred to as result variables to distinguish them from the identification variables that are defined in the FROM clause. Order Direction (ASC, DESC) The default ordering direction ... "))); Unlike other methods for setting criteria query clauses - the orderBy method takes a variable number
Manual
29

UPDATE SET Queries in JPA/JPQL

* 11 / 10 The UPDATE clause defines exactly one range variable (with or without an explicit variable name) for iteration. Multiple variables and JOIN are not supported. The SET clause defines one or more field update expressions (using the range variable name - if defined). Multiple field update
JDO Doc
25

javax.jdo.Query

of instances, and the filter. There are optional elements: parameter declarations, variable declarations ... variables of a method setFilter and setOrdering correspond to the method body ... , variables and parameters. The method setClass introduces the name of the candidate class in the type
Manual
25

GROUP BY and HAVING clauses

. Only identification variables and path expressions are currently supported in the GROUP BY clause by all the JPA ... takes a variable number of arguments specifying one or more grouping expressions (or a list ...  an Expression argument and the other having form takes a variable number of Predicate arguments
Manual
20

JPA Criteria API Queries

the built query. Then a Root instance is created to define a range variable in the FROM clause. Finally, the range variable, c, is also used in the SELECT clause as the query result expression
Manual
20

JPA Persistable Types

constructor. cannot be final and cannot have final methods or final instance variables. ObjectDB ... are forbidden). Instance (non static) variables cannot be final, but classes and methods can be final. In
Manual
20

SELECT clause (JPQL / Criteria API)

can be added to the SELECT clause by using a bound JOIN variable in the FROM clause. Nested path expressions ... . The CriteriaQuery interface provides a shortcut method - multiselect, which takes a variable number
JPA Doc
14

JPA Metamodel API

the above sets extend the Bindable interface, which may be used in defining criteria query variables in
Manual
14

JPA Query Expressions (JPQL / Criteria)

/ Criteria Variables JPQL / Criteria Parameters JPQL / Criteria Literals Every query expression consists