Resolution: COBOL programmers sometimes use the figurative constants HIGH-VALUES and LOW-VALUES as if these constants will have a numeric meaning when moved to or compared with a numeric data item.
What are high-values in COBOL?
High-values is the highest value in the “collating sequence” in your COBOL program. No value is higher. The default value for HIGH-VALUES is X’FF’. HIGH-VALUES is a figurative-constant, When you MOVE HIGH-VALUES TO somwhere, all receiving positions of somewhere will be filled with X’FF’.
Is low-values greater than spaces?
LOW-VALUE is hexadecimal (hex) ’00’. SPACE is hex ’40’ in EBCDIC. Simple arithmetic tells you there are 62 characters in the EBCDIC collating sequence that are larger than LOW-VALUES and less than SPACES.
Can we move low-values to numeric field in COBOL?
Leon – low-values is not a numeric value, it is of course hex zeroes, i.e. x’00000000′. which cannot be moved into a numeric field. It can be moved into a character field, pic x(4) for example.
What is a high value?
: to consider as very important A lot of teenagers place a high value on being popular.
What is the use of initialize in COBOL?
INITIALIZE sets the data items to the predefined values based on the data types. It is functionally equivalent to one or more MOVE statements. INITIALIZE can initialize single data item or a group of data items.
How does COBOL handle null values?
Usually low-values or x’00’ or x’FF’ are check for bad values which you can say NULL values. But again there is no standard how you handle with what values. One way to achieve what you want is using NULLIF while you do INSERT and not in COBOL program.
Is null the same as low-values?
In SQL, NULL is often used to indicate that the data is missing or not applicable. Note: SPACES or LOW-VALUES will not be converted to NULL or zero in a numeric data item where SPACES or LOW-VALUES, respectively, are valid numeric values.
What high value means?
What is high value food?
High-value products (HVPs) can be divided into three groups: 1) semi-processed products, such as fresh and frozen meats, flour, vegetable oils, roasted coffee, refined sugar; 2) highly processed products that are ready for the consumer, such as milk, cheese, wine, breakfast cereals; and 3) high-value unprocessed …
Can we initialize filler in Cobol?
The FILLER fields are not initialized because that is one of the rules of INITIALIZE. INITIALIZE does not place values in all fields. There are several exceptions. I suggest you look at the COBOL Language Reference that is linked to via the “Manuals” link at the top of each web page to find all of the rules.
What are low values and high values in COBOL?
Mainframe COBOL – LOW-VALUES, HIGH-VALUES, COLLATING SEQUENCE. LOW-VALUES and HGH-VALUES are Figurative constants in COBOL. LOW-VALUES refers the lowest value in collating sequence. Collating Sequence is the sequence of a system which decides the equivalent numeric value for each character typed in keyboard and the precedence b/w characters.
How do you process ASCII data in COBOL?
In a COBOL program running on a Mainframe you could process ASCII data using an ASCII collating sequence, or some custom collating sequence where LOW-VALUES and HIGH-VALUES still contain the lowest and highest in the sequence, but do not contain X’00’ and X’FF’.
What is the RM/COBOL listing allocation map?
The RM/COBOL compiler listing allocation map shows the values assigned to LOW-VALUES and HIGH-VALUES whenever any special-names are defined. If the program collating sequence is declared to be PCS where PCS is defined as: then LOW-VALUES will be “0” and HIGH-VALUES will be “9” for that program.
What is X’7F’ in COBOL?
As a side note, early versions of Microfocus COBOL used X’7F’ for High-Value. It didn’t work very well on 8-bid machines. I’ve used LOW-VALUES when working with null-terminated strings such as those required by C (LOW-VALUES = NULL in all the COBOLs I’ve ever seen).
