Scalar functions

EJB query contains scalar built-in functions for doing type conversions, string manipulation, and for manipulating date-time values. The list of scalar functions is documented in the topic EJB query: Scalar functions.

 

Example: Scalar functions

Find employees hired in 1999

SELECT OBJECT(e) FROM EmpBean e where YEAR(e.hireDate) = 1999

The only scalar functions that are guaranteed to be portable across backend datastore vendors are the following...

• ABS

• SQRT

• CONCAT

• LENGTH

• LOCATE

• SUBSTRING

The other scalar functions should be used only when DB2 is the backend datastore.

 

See Also

EJB query language
Using EJB query

 

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