Network Deployment (Distributed operating systems), v8.0 > Develop and deploying applications > Develop Dynamic and EJB query > Develop applications that use EJB query

EJB query language

EJB query language enables you to write queries based on entity beans without knowing the underlying relational schema.

An EJB query is a string that contains the following elements:

Collections of entity beans are identified in EJB queries through the use of their abstract schema name in the query FROM clause.

The elements of EJB query language are discussed in more detail in the following related topics.


FROM clause
Inheritance in EJB query
Path expressions
WHERE clause
Scalar functions
Aggregation functions
SELECT clause
ORDER BY clause
UNION clause operation
EJB query language limitations and restrictions
EJB query compatibility issues with SQL
Database restrictions for EJB query
Rules for data type manipulation in EJB query
EJB query: Reserved words
EJB query: BNF syntax
EJB specification and WebSphere query language comparison
Use EJB query


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