How do you get unmatched records using join keys?
1 Answer. It is a simple JOINKEYS: OPTION COPY JOINKEYS F1=INA,FIELDS=(4,80),SORTED,NOSEQCK JOINKEYS F2=INB,FIELDS=(4,80),SORTED,NOSEQCK JOIN UNPAIRED REFORMAT FIELDS=(F1:1,227,F2:1,227,?) The OPTION COPY is for the Main Task, the bit which runs after the joined file is produced.
What is join keys in JCL?
In RDBMS, SQL JOIN clause is used to join tables and perform multiple operations on it. To perform operations on records in different flat files, JOINKEYS are used. With the help of JOINKEYS in SORT JCL, various join operation on matched and non-matched records can be executed based on matching fields or Keys.
How do you use join keys?
JOINKEYS joining two files using SORT
- FILE=F1 or F1=ddname must be used to indicate that the JOINKEYS statement applies to the F1 input file. FILE=F1 associates the F1 file with a ddname of SORTJNF1.
- FILE=F2 or F2=ddname must be used to indicate that the JOINKEYS statement applies to the F2 input file.
How do you write a matched record in Cobol?
1)SORT SORT-FILE1 ASCENDING SORT-KEY(empnumber) USING INPUT1-FILE GIVING INP1-FILE. 2)SORT SORT-FILE2 ASCENDING SORT-KEY(empnumber) USING INPUT1-FILE GIVING INP2-FILE. PERFORM 250-COMP-PARA UNTIL EOF-IE = ‘Y’ OR EOF-FILE1 = ‘Y’. PERFORM 900-CLOSE-PARA.
What is XSUM in sort?
XSUM Control Statement captures the dropped duplicate records which are eliminated out of DFSORT in a separate file. The SUM Control Statement deletes records with equal control fields and optionally summarizes specified numeric fields on those records.
What is join key?
A set of fields that identify the records to include in a blended data source. In a blended data source, each component data source must share one or more dimensions, known as a join key (or just a key, for short). In SQL terminology, this is known as a left outer join. …
What is join unpaired in sort?
JOIN UNPAIRED,F1,ONLY is used to restrict the output (SORTOUT) to the records in F1 that do not have matching keys in F2. UNPAIRED,F1,F2 to keep the unpaired joined records as well as the paired join records.
How do you inspect in Cobol?
- INSPECT statement with TALLYING phrase (Key Phrases to use: BEFORE/AFTER, CHARACTERS, ALL, LEADING and FIRST)
- INSPECT statement with REPLACING phrase (Key Phrases to use: BEFORE/AFTER, CHARACTERS BY, ALL, LEADING and FIRST)
- INSPECT statement with TALLYING and REPLACING phrases.
How do you write a Cobol program to compare two files?
will perform opening the 2 files in INPUT mode and 3 output file in OUTPUT mode. 000-OPEN-EXIT. 100-PROCESS. will perform READ operation for 2 input files, then will compare first record from both files.
What is the difference between unpaired and joined Records?
JOIN UNPAIRED,F1,ONLY The joined records will be the original unpaired F1 records. If the F1 records are fixed-length, the joined records will be fixed-length. If the F1 records are variable-length, the joined records will be variable-length.
Is joinjoin unpaired F2 or F2?
JOIN UNPAIRED,F2,ONLY The joined records will be the original unpaired F2 records. If the F2 records are fixed-length, the joined records will be fixed-length. If the F2 records are variable-length, the joined records will be variable-length.
What happens if you don’t specify a JOIN statement?
If you don’t specify a JOIN statement for a JOINKEYS application, only paired records from F1 and F2 are kept and processed. This is known as an inner join. The joined records will be the original unpaired F1 records.
What are the join operands?
The JOIN operands you specify indicate the joined records to be kept and processed by the main task as follows: Unpaired records from F1 and F2 as well as paired records. This is known as a full outer join. Unpaired records from F1 as well as paired records. This is known as a left outer join. Unpaired records from F2 as well as paired records.