Sorting a table
You can sort a table by using the format 2 SORT
statement. It is part of
the 2002 COBOL Standard.
About this task
The format 2 SORT
statement sorts table elements according to the specified
table keys, and it is especially useful for tables used with SEARCH ALL
. You can
specify the keys for sorting as part of the table definition, which can also be used in the
SEARCH ALL
statement. Alternatively, you can also specify the keys for sorting as
part of the SORT
statement, either if you want to sort the table using different
keys than those specified in the table definition, or if the table has no keys specified.
With the format 2 SORT
statement, you don't need to use the input and output
procedures as you do with the format 1 SORT
statement.
See the following example in which the table is sorted based on specified
keys:
WORKING-STORAGE SECTION.
01 GROUP-ITEM.
05 TABL OCCURS 10 TIMES
10 ELEM-ITEM1 PIC X.
10 ELEM-ITEM2 PIC X.
10 ELEM-ITEM3 PIC X.
...
PROCEDURE DIVISION.
...
SORT TABL DESCENDING ELEM-ITEM2 ELEM-ITEM3.
IF TABL (1)...
Related references
SORT statement (COBOL for Linux® on x86 Language Reference)
Using the format 2 SORT statement to sort a table
SORT statement (COBOL for Linux® on x86 Language Reference)
Using the format 2 SORT statement to sort a table