| < 50 | This operator is used for number fields. The results will
                                        include only those records where the field contains a
                                            value of less than 50. | 
                                
                                    | > 25 | This operator is used for number fields. The results will
                                        include only those records where the field contains a
                                            value of greater than 25. | 
                                
                                    | <= 50 | This operator is used for number fields. The results will
                                        include only those records where the field contains a
                                            value of less than or equal to 50. | 
                                
                                    | >= 25 | This operator is used for number fields. The results will
                                        include only those records where the field contains a
                                            value of greater than or equal to 25. | 
                                
                                    | = 10 | This operator is used for number fields. The results will
                                        include only those records where the field contains a
                                            value that is equal to 10. | 
                                
                                    | <>15 | This operator can be used for any type of field. The
                                        results will include only those records where the field
                                        contains a value that is different from 15. | 
                                
                                    | IS NULL/IS NOT
                                        NULL | This operator can be used for any type of field. The
                                        results will include only those records where the field
                                            value is NULL or contains some value (NOT NULL)
                                        depending on the choice of the operator. | 
                                
                                    | IN 12, 13, AA, BB | This operator can be used for string fields. The results
                                        will include only those records where the field value is
                                            exactly equal to 12 or is exactly equal to 13 or is
                                            exactly equal to AA or is exactly equal to BB. This
                                        operator is similar to the NOT IN operator. | 
                                
                                    | LIKE AAA | This operator can be used for string fields. The results
                                        will include only those records where the field value
                                            contains AAA anywhere in the value. This operator
                                        is similar to the NOT LIKE operator. |