1 SELECT
 The SELECT statement lets you specify an expression, the possible values
 the  expression  may  have,  and a list of statements to be executed for
 each possible value.  The  END  SELECT  keywords  terminate  the  SELECT
 block.

 Example

 SELECT ERR
        CASE 11
             PRINT "End of File"
             RESUME 32767
        CASE 131
             PRINT "Record not found"
             RESUME 5000
        CASE ELSE
             ON ERROR GOTO 0
 END SELECT

2 Syntax

     SELECT exp1
            case-clause 
                 .
                 .
                 .
            [ else-clause ]
     END SELECT

       case-clause:  CASE case-item,...
                     [ statement ]...

       case-item:    { [ rel-op ] exp2 }
                     { exp3 TO exp4    }

       else-clause:  CASE ELSE
                          [ statement ]...