EXPR_REFERENCE

Returns a string containing the name of the reference to the expression. If no expression is found, EXPR_REFERENCE returns an empty string. Similarly, if the reference index is out of bounds, it returns an empty string.

Format

EXPR_REFERENCE (Expression, Reference)

Argument

 
Expression
A character string name of a database field.
Reference
A numeric index into the list of references to that field.

Examples

var set var=load_dep &str=(eval(expr_reference(".mod.par.mar.loc", 1)))