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Literals

Literals can be considered constants that do not change in value.

A string literal is enclosed in single quotes. A single quote that occurs within a string literal is represented by two single quotes. For example: 'Tom''s'. A string literal cannot exceed the maximum length that is supported by the underlying persistent datastore.

A numeric literal can be any of the following:

A decimal or approximate numeric value must be in the range supported by the underlying persistent datastore.

A boolean literal can be the keyword TRUE or FALSE and is case insensitive.
EJB query language
WHERE clause
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