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Appendix D: Using the Expression Editor
user
This function returns the user name of the current user.
Syntax
{user}
vargraphic
This function Returns a character string that represents the vargraphic code for string_exp.
Syntax
vargraphic ( string_exp )
zeroifnull
This function converts data from null to 0 to avoid cases where a null result creates an error. If the
numeric_exp is not null, it returns the value of the numeric_exp, if numeric_exp is a character
string, it is converted to a numeric value of FLOAT data type. If the numeric_exp is null or zero, it
returns zero.
Syntax
zeroifnull ( numeric_exp )
Teradata Trigonometry
acos
Returns the arccosine of numeric_exp in radians. The arccosine is the angle whose cosine is
numeric_exp. The values of numeric_exp must be between -1 and 1, inclusive.
Syntax
acos ( numeric_exp )
acosh
Returns the inverse hyperbolic cosine of an argument. The numeric_exp can be any real number
equal to or greater than 1.
Syntax
acosh ( numeric_exp )
asin
Returns the arcsine of numeric_exp in radians. The arcsine is the angle whose sine is numeric_exp.
The values of numeric_exp must be between -1 and 1, inclusive.
Syntax
asin ( numeric_exp )
asinh
Returns the inverse hyperbolic sine of an argument. The numeric_exp can be any real number.
Syntax
asinh ( numeric_exp )
atan
Returns the arctangent of numeric_exp in radians. The arctangent is the angle whose tangent is
numeric_exp.
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