What is 88 level used for?

Level 88s are used to assign names to values at execution time. Thus, a condition-name is not the name of an item, but rather the name of a value. A level 88 doesn't reserve any storage area. Each level 88 must be associated with a data item and must immediately follow that item in the Data Division.

What is 88 level entry used for?

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.

What are 66 and 88 level used for in COBOL?

SPECIAL LEVEL NUMBERS IN COBOL​

66 level – Used for RENAMES clause. and 66 levels should not have a picture clause. Example – 01 EMP-REC.

What is the default value for 88 level in COBOL?

You cannot set a default value for an 88 level. The 88 level is associated with a variable and you can use a VALUE clause on that variable to define the initial or default value.

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.

Conditional Program Using 88 Level Number in COBOL - Mainframe Cobol Practical Tutorial - Part 12

What does V99 mean in COBOL?

9(8)v99 means this variable is Numeric type of length 8 and 2 digits after decimal. I guess your legacy system is Mainframes (COBOL). In COBOL 9(8) means Numeric of length 8. v means decimal point. 99 after v means number of digits after decimal point.

What is level 66 used for?

You must use the level number 66 for data description entries that contain the RENAMES clause. A level-66 entry cannot rename another level-66 entry, nor can it rename a level-01, level-77, or level-88 entry. One or more RENAMES entries can be written for a logical record.

What is 88 level number?

Level 88s are used to assign names to values at execution time. Thus, a condition-name is not the name of an item, but rather the name of a value. A level 88 doesn't reserve any storage area. Each level 88 must be associated with a data item and must immediately follow that item in the Data Division.

How do you initialize a 88 level variable in COBOL?

Static initialization - By directly specifying the VALUE clause during the declaration. For example - Below declaration creates to condition names MALE and FEMALE. 01 WS-GENDER PIC X(01). 88 MALE VALUE 'M'.

Which is the lowest level number in COBOL?

COBOL uses level numbers 01 through 49 to define a data structure into a hierarchy of constituent parts - the higher the level number, the lower the item is in the hierarchy.

What is 77 level in mainframe?

Level 77 is a special level number in COBOL which is used to declare independent data items; they are not subdivisions of other data items and are not subdivided themselves. In earlier days there were differences in storage and processing of level 77 and level 01 elementary data items.

How do you read last 100 records in COBOL?

100-READ-FILE. OPEN I-O MASTER-FILE. PERFORM UNTIL WS-EOF = "Y" READ MASTER-FILE AT END MOVE 'Y' TO WS-EOF NOT AT END DISPLAY IN-RECORDS END-READ END-PERFORM CLOSE MASTER-FILE. STOP RUN.

What is 66 level in COBOL?

Renames clause is used to give different names to existing data items. It is used to re-group the data names and give a new name to them. The new data names can rename across groups or elementary items. Level number 66 is reserved for renames.

How do you trigger JCL from COBOL program?

In your JCL define as // JOB A JOB 1111, JOB1 //STEP01 EXEC PGM = PROG1 // ddname DD SYSOUT = (*,INTRDR) ... and your COBOL(PROG1) should look like this SELECT JCL-FILE ASSGN TO ddname. Open this file and write the JCL statements into this file.

How do you pass values from JCL to COBOL program?

You can pass a parameter string from JCL to a COBOL program using the PARM= keyword of the EXEC statement. You can access these parameters either by standard COBOL coding, or by calling the CEE3PR2 Language Environment® callable service.

How many ways to pass values from JCL to COBOL?

What are level numbers?

The level-number specifies the hierarchy of data within a record, and identifies special-purpose data entries. A level-number begins a data description entry, a renamed or redefined item, or a condition-name entry.

How do I run a COBOL program?

To run your COBOL program in TSO, compile and link-edit the program, and then run it in either with or without ISPF. You must compile and link-edit your COBOL program before you can run it in TSO. After your COBOL program compiles successfully, you can run it with JCL without ISPF.

What is FD and SD in COBOL?

In a COBOL program, the File Description (FD) Entry (or Sort Description (SD) Entry for sort/merge files) represents the highest level of organization in the File Section. The File Description (FD) Entry (or Sort Description (SD) Entry) has six formats: Format 1 - Sequential File. Format 2 - Diskette File.

Can we redefine 01 level in COBOL?

REDEFINES is allowed in a level 01 entry in the File Section, but it will generate a warning message. The number of character positions described by prev-data-name need not be the same as the number of character positions in the subject of the REDEFINES clause.

What is the difference between 01 and 77 level in COBOL?

The element in 77 cannot be subdivided or cannot have a group of subelements . This is to indicate the variable declared in 77 is an elementary(some thing for special purpose) and should not be subdivided . Level 01 can be elementary item or a part of a group item.

What is PIC 9 COBOL?

PIC 9 for numbers, optionally with S (sign) or V (implicit decimal point). For example, PIC S9(7)V99 means a signed number with 7 digits to the left of the implicit decimal point and 2 digits to the right.

What does comp 3 mean in COBOL?

COBOL Comp-3 is a binary field type that puts ("packs") two digits into each byte, using a notation called Binary Coded Decimal, or BCD. This halves the storage requirements compared to a character, or COBOL "display", field.