A statement used to tell whether x is in y, the return value is a boolean value.
Examples
integer x[3] = [0,1,2];  
  
      integer xx = 3;
      xx in x
integer range intary=[30 to 50]; 
    if (@"Product_ID" in intary) then 
    return "Within the Range" 
    else 
    return "Out of Range" if (@Customers_Region in ["CO","MT","UT","WY"]) then 
    "Rocky Mountain Region" 
    else 
    "Rest of Country"A statement used to define an array.
Example
The return value of the following statement is 1996-11-27.
date d[3] = [toDate(1997, 11, 27), toDate(1996, 11, 27), toDate(1995, 11, 27)];
  date dd[3];
  dd = d;
  dd[1]
A statement used to index a certain value in an array.
Example
The return value of the following statement is 14:11:27.
time d[3] = [totime(12, 11, 27), totime(13, 11, 27), totime(14, 11, 27)];
  time dd[3];
  dd = d;
  dd[2]
A statement used to define an array.
Example
The return value of the following statement is true.
string range strary = ["a" to "z"];
string x = "d";
x in strary
It is used to specify a range of values greater than but not including the value i, and less than or equal to the value j. Both i and j are the type of Number.
Example
The return value of the following statement is true.
integer a[] = [1,1,2,3,4];
3 in a[2 _to 4];
It is used to specify a range of values greater than or equal to the value i, and less than but not including the j value. Both i and j are the type of Number.
Example
The return value of the following statement is true.
integer a[] = [1,1,2,3,4];
3 in a[2 to_ 4];
It is used to specify a range of values greater than but not including the value i, and less than but not including the value j. Both i and j are the type of Number.
Example
The return value of the following statement is true.
integer a[] = [1,1,2,3,4];
3 in a[2 _to_ 4];
It is used to specify a range of values greater than or equal to the value j. j is the type of Number.
Example
The return value of the following statement is false.
integer a[] = [1,1,2,3,4];
3 in a[upfrom 4]
It is used to specify a range of values greater than but not including the value j. j is the type of Number.
Example
The return value of the following statement is true.
integer a[] = [1,1,2,3,4];
3 in a[upfrom_ 2]; 
It is used to specify a range of values less than or equal to the value j. j is the type of Number.
Example
The return value of the following statement is true.
integer a[] = [1,1,2,3,4];
3 in a[upto 4];
It is used to specify a range of values less than but not including the value j. j is the type of Number.
Example
The return value of the following statement is false.
integer a[] = [1,1,2,3,4];
4 in a[upto_ 4];
Conditional statement.
Example
The return value of the following statement is abc.
integer s=5;
  integer f=8;
  if ( f>s )
  then return "abc"
  else return "def"
Returns the value of X.
Example
The result of the following statement is 06/19/01.
return Today ()