These functions find a substring within a given string. They return true if the substring is found and false otherwise. In the table, field is the string to search. It is an expression evaluating to a string type. The string to search for is find .
Function Signature Description startsWith() startsWith(field exp, find1, find2, ...)Determine whether a string starts with a substring(s) contains() contains(field exp, find1, find2, ...)Determine whether a string contains a given substring(s) endsWith() endsWith(string expr field, string find)Determine whether a string ends with a given substring like() like(string expr field, string expr pattern, string esc)Returns true if pattern is found within field isAlpha() isAlpha(value)Determine whether a string consists of alphabetic characters only isNumeric() isNumeric(value)Determine whether a string evaluates as a number
These functions find a constant (constN ) in an expression (field ). If one of the constants is found in field , true is returned. These functions return false otherwise.
Function Signature Description in in(expr field, const1, const2, ...)Return true if any of a list of items match the given expression inList inList(expr field, list)Return true if an expression evaluates to one or more constants in list
These functions check whether values can be used in further operations.
Function Signature Description isNull() isNull(<type> expr field )Returns true if field evaluates to NULL isNan() isNan(double value)Returns true if value is NaN
These functions operate on expressions evaluating to boolean. They are the logical functions Incorta supports.
Function Signature Description and() and(bool expr1, bool expr2, . . .)Determine whether a series of expressions evaluate to true or() or(bool expr1, bool expr2, . . .)Determines whether any of a series of expressions evaluate to true not() not(bool expr)Negates its expression argument
Function Signature Description between() between(double expr value, double expr min, double expr max)Returns true if value is between min and max