What is table or array in COBOL?
COBOL uses OCCURES clause to define a table/Array in the programming structure. OCCURES clause specifies the number that represents how many times the data item repeated in the table. There are two parts in the table/array i.e., first one is the table name and the second one is data item which repeats in the table.
Can we initialize array in COBOL?
Initializing an Array in the DATA Division The VALUE clause is used to initialize a data-item in WORKING-STORAGE, but COBOL-74 does not permit its use in a definition containing an OCCURS clause. A data-item with a VALUE clause must be defined and the space it occupies, and then REDEFINED as an array: 01 MONTH-NAMES.
What is index in array COBOL?
Index is the number of displacement positions. Index can be created by using the INDEXED BY phrase of the OCCURS clause and the same used to identify an index-name. Take the below memory representation diagram to understand better about index.
What is dynamic array in COBOL?
Re: Dynamic Array Depends what you mean by a “Dynamic Array”. Strictly, Cobol does not have Arrays. It has Tables. A Table which uses Occurs Depending On is defined in the program by the Compiler has using the storage for the maxium value of the OCCURS specified.
What is difference between subscript and index in COBOL?
In this topic, we described about the Difference between Index & Subscript with detailed example….Summary –
| Subscript | Index |
|---|---|
| Subscript can increase by using ADD statement and decrease by using SUBTRACT statement. | Index can increase by using SET UP BY statement and decrease by using SET DOWN BY statement. |
What is the difference between index and subscript in COBOL?
Can we set index to zero in COBOL?
In some versions of COBOL (namely AS/400) calling an array and setting the table index to zero works. However, in Micro Focus COBOL this returns an error (“153 subscript out of range”) as the default value is set to one.
