Examples of REXX comparison expressions

The following are examples of REXX comparison expressions:

Example 1

Select records in which the transaction date (field #14) is any date in July 2000, or the transaction value (field #27) is greater than $100,000.00

(#14 >= 20000701 & #14 < 20000801) | #27 > 100000.00

Example 2

Select records in which the count of credit notes (field #62) is greater than 10% of the count of invoices (field #61)

#62 > #61/10

Example 3

Select records in which the employee identifier (field #17) starts with any of the letters A, C, or E.

CO(SUBSTR(#17,1,1),'A','C','E')

Example 4

Select records in which the supplier number (field #23) is 997644 or 997645, and the item description (field #33) contains the word 'CABINET'

NCO(#23,997644,997645) & CO(#33,'CABINET')

Example 5

Select records in which the 4-byte packed decimal field starting at position 17 in the record contains a negative value

FLD(17,4,P) < 0

Example 6

Select records in which either the transaction value (field #27) is greater than $50,000.00 and the purchase order number (field #25) starts with characters other than 'TX', or the transaction value is greater than $70,000 and the supplier number (field #23) is 984545, but not if both sets of conditions are true

(#27 > 50000.00 & SUBSTR(#25,1,2) ¬== 'TX') &&
(#27 > 70000.00 & #23 = 984545)