(See the topic The OPEN Statement. Exemples de recherches dans une table indexГ©eД 5 FILLER PIC X(12) VALUE '09SEPTEMBRE '.Д 5 FILLER PIC X(12) VALUE вЂ12123456789012вЂ™.Д 5 WS-LIG-MOIS OCCURS 12 TIMES INDEXED BY IND-MOIS.Д 5 WS-LIG-JOUR OCCURS 12 TIMES ASCENDING NUM-JOUR INDEXED BY IND-JOUR. General Rules for All Formats (All Files) The associated file must be open in the INPUT or I-O mode at the time the statement is executed.To improve the search, you can use SEARCH ALL (binary search) on condition that you have declared the sorted table (on ASCENDING or DESCENDING key). In your code, the same search is done and has nothing to do with the organization of the file since it is loaded into memory in a table. The SEARCH statement is used in a program to search for an item in an indexed table previously loaded into memory. MOVE I-AIRLINE-NAME TO WS-I-AIRLINE-NAME (X2) MOVE I-AIRLINE-ID TO WS-I-AIRLINE-ID (X2) PERFORM VARYING X2 FROM 1 BY 1 UNTIL EOF-SWITCH = вЂњYвЂќ MOVE AIRLINE-NAME TO WS-AIRLINE-NAME (X1) PERFORM VARYING X1 FROM 1 BY 1 UNTIL EOF-SWITCH = вЂњYвЂќ вЂњ/home/david/cobol/Search/AIRLINES-INDEXED.DATвЂќД 5 WS-ENTRIES OCCURS 4 TIMES INDEXED BY X1.Д 5 WS-I-ENTRIES OCCURS 4 TIMES INDEXED BY X2. However I wonder, is this a good solution, or could it be improved / more efficient?Д¬ode can also be viewed here: dpaste: HYZEWD8JH Below is what I came up with when searching a ordinary sequential file and a indexed file. Records are retrieved for relative files based on the value you put in the relative key.Currently trying to understand the Search verb while learning Cobol. There can be one or more alternate indexes. Value can be primary, alternative, or relative. This mode of access is often used only for indexed and relativeВ files.ДЇor indexed files, records are retrieved according to the value you place in a key field. In the random access mode, we can access the records randomly, i.e., directly by providing the key. The sequential access mode is very effective when the file has fewer records, but when the file has a huge number of records, it will take too much time to read a specific record from the file. In sequential files, records are retrieved in the same way as they were inserted.ДЇor indexed files, records are accessed in the order of the key filed selected, beginning at the present position of the file position indicator.ДЇor relative files, records are accessed in the order of the relative record number. The method to retrieve the record varies according to the chosen file organization. In short, we can say, access mode defines how the data is required to read and write from the file.ДЄs the name indicates, the records in the file can be read sequentially for the sequential access, i.e., one after the other from the beginning. The access mode is used to define the accessing way of the file based on the requirements in the program. A Sample COBOL Program that READ a Sequential files and Write into another file. Before using REWRITE command, corresponding record should be read. This REWRITE is not available in Sequential file. Every file organization (In our previous section, we discussed many file organizations) has different modes of access. If file is opened in I-O mode then only we can use REWRITE command on that file.

Cobol read file