EJB spec and WebSphere query language comparison

WAS extends the EJBs query language with elements of its own.

WAS supports the following extensions to the EJB query language.

Table 1. Extensions supported for the EJB query language

Item
Delimited identifiers
Dependent Value object attributes used in path expressions
EJB Inheritance
EXISTS predicate
Java methods: EJB bean methods or value object methods	dynamic query only
Multiple element select clauses	dynamic query only
SQL Date/time expressions
Subqueries, group by, and having clauses

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Related concepts

EJB query language

 

Related tasks

Use EJB query
Use the dynamic query service