Developing Apama Applications > EPL Reference > Queries > Reserved words in queries
Reserved words in queries
In a query, the following are reserved words, also referred to as keywords. To use one of these words as an identifier in a query, you must escape it. For details see Escaping keywords to use them as identifiers.
*as
*between
*every
*find
*having
*inputs
*key
*parameters
*query
*retain
*select
*where
*within
*without
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