4. Elements of QUEL Statements
:
Functions
:
Scalar
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Scalar
There are four types of scalar functions:
•
data type conversion
(see
Data Type Conversion Functions
)
•
numeric
(see
Numeric
)
•
string
(see
String
)
•
date
(see
Date
)
The scalar functions require either one or two single-value arguments. Scalar functions can be nested to any level.