What Is The Difference Between Comp And Comp3 In Cobol?

It is the default internal representation of the data. Any type of data can be specified with the DISPLAY internal representation.
Difference between COMP and COMP3 :

Which is better comp or COMP3 in COBOL?

The best choice is Packed-Decimal (COMP-3) and a Sign (S9). Regarding space Packed-Decimal is more effective, as the data is stored as decimal data, one decimal digit in one half byte, as Binary uses one byte oer digit.

What is COMP3?

Specifies for internal decimal items. COMP-3 is the equivalent of PACKED-DECIMAL. COMP-3 usage clause is applicable for numeric data type. If an item declared as COMP-3, the item appears in storage in packed decimal format. The right most half byte contains the sign value.

What is comp COBOL?

BINARY data and synonyms COMP and COMP-4 are the two’s complement data representation in COBOL. BINARY data is declared with a PICTURE clause as with internal or external decimal data but the underlying data representation is as a halfword (2 bytes), a fullword (4 bytes) or a doubleword (8 bytes).

Why comp is used in COBOL?

COMP-3. Data item is stored in packed decimal format. Each digit occupies half a byte (1 nibble) and the sign is stored at the rightmost nibble. 01 WS-NUM PIC 9(n) USAGE IS COMP.

What is soc4 Abend?

S0C4 Abend is a protection exception when a virtual address cannot be mapped with a physical address. When S0C4 Abend occurs. An Invalid address referenced due to subscript error. In a group Move the length of the receiving field was defined incorrectly.

What is 77 level used for in COBOL?

Entries that specify noncontiguous data items, which are not subdivisions of other items, and are not themselves subdivided, have been assigned the special level-number 77.

How many bytes is a comp?

COMP-1 items are 4 bytes long. Specified for internal floating-point items (double precision). COMP-2 items are 8 bytes long. This is the equivalent of PACKED-DECIMAL.

Can we move numeric to comp3 in COBOL?

Any numeric variable (USAGE DISPLAY, COMP, COMP-1, COMP-2, COMP-3, COMP-4, or COMP-5) can be moved to a COMP-3 variable with only truncation and overflow issues possible, depending upon the PICTURE clauses involved.

How are Comp-3 values stored?

Value in the COMP-3 gets stored in high-order to low-order. the upper nibble of the first byte encountered within the document is the most significant digit of the value, the lower nibble of the byte is the following digit, and so on. the final nibble, the low nibble of the least enormous byte.

Can Comp-3 be converted to numeric?

You cannot move a COMP-3 variable to alphanumeric directly. It will not give a SOC7 error but will you give you a return code 12 stating that comp-3 and alphanumeric variables did not follow the move compatibility rule. 01 A1 PIC S9(4) COMP-3 VALUE 1234. 01 A1-NUM PIC S9(4) VALUE ZEROES.

Can I declare occurs in 01 level?

The table element definition (which includes the OCCURS clause) is subordinate to the group item that contains the table. The OCCURS clause cannot appear in a level-01 description.

What is the difference between comp1 and comp2?

COMP-1 refers to short (single-precision) floating-point format, and COMP-2 refers to long (double-precision) floating-point format, which occupy 4 and 8 bytes of storage, respectively. The leftmost bit contains the sign; the next seven bits contain the exponent; the remaining 3 or 7 bytes contain the mantissa.

Can we give multiple 01 level in a copybook?

If you want to include the 01-level variable in the copy book, each COPY will need a REPLACING option – period. Every 01-level variable in a program must be unique to allow every variable name to be uniquely identified (through qualification if nothing else).

What is 88 level in COBOL?

COBOL can define a set of level-88 elements, which list potential values for the preceding element. The level-88 statements can be used to test the value of the preceding element. For example, if the element FLAG1 has a value of ‘Y’, then FLAG1-ON resolves to true when used to test the value of FLAG1.

Can we redefine copybook?

When you generate a XOM from a COBOL copybook, a REDEFINES statement generates a Java™ type mapping for each data item that is associated with the REDEFINES statement, but you can use only one of them in the XOM.

What is u0999 abend?

ABENDU0999 or USER COMPLETION CODE=0999 issued by IQCSELCT
If USER COMPLETION CODE=0999 occurs, this is most likely the result of insufficient memory. To correct the error, run the job again using a larger region size on your IQCSELCT JOB or STEP card.

What is U4038 abend in COBOL?

A U4038 abend is a user-abend which comes from Language Environment, the “run-time” for Mainframe programs (it supports multiple Mainframe languages).

What is S013 abend in JCL?

The S013 Abend occurs when the Program expects the DD to have a specific DCB, but the DD has a different DCB. Specify the correct DCB for the DD.

What is the maximum array size in COBOL?

The maximum length of an element of a table is 65280 characters (that is, data items subordinate to an OCCURS clause cannot exceed 65280 characters in length). The maximum number of occurrences of a table element is 65535. That is, in an OCCURS clause, the value of integer-2 must be less than or equal to 65535.

What is PIC 99 COBOL?

This field would be set up with the following picture: PIC 999V99. The V in the PICTURE indicates that when processing the computer will assume that there is a decimal point in this position. Therefore, the number stored in the PICTURE above would be processed as three whole numbers followed by two decimal places.