What is sum fields in sort JCL?
JCL – SORT SUM Fields The SUM control statement specifies that, whenever two records are found with equal sort or merge control fields, the contents of their summary fields are to be added, the sum is to be placed in one of the records, and the other record is to be deleted.
What is ZD In sum fields?
Designates numeric fields in the input record as summary fields. specifies the length in bytes of the summary fields to be added….SUM control statement.
| Summary Field Formats and LengthsFormat Code | Length | Description |
|---|---|---|
| ZD | 1 to 31 bytes | Signed zoned decimal |
What is Inrec overlay in sort?
INREC OVERLAY operation is used in order to rewrite data in input file before copying to output.
How do you use Inrec and Outrec in JCL?
The INREC statement has the same format as the OUTREC statement. INREC reformats the records before they are sorted. The SORT and SUM statements refer to the reformatted records. DFSORT processes the INREC statement before SORT, SUM, and OUTREC.
What is the difference between Inrec and Outrec in sort?
What is the exact difference between INREC and OUTREC statements in SORT? INREC is processed BEFORE the records are sorted, merged or copied. OUTREC is processed AFTER the records are sorted, merged or copied.
What is Outfil in sort?
OUTFIL control statements allow you to create one or more output data sets for a sort, copy, or merge application from a single pass over one or more input data sets. You can use multiple OUTFIL statements, with each statement specifying the OUTFIL processing to be performed for one or more output data sets.
What is zoned decimal?
Zoned-decimal format means that each byte of storage can contain one digit or one character. In the zoned-decimal format, each byte of storage is divided into two portions: a 4-bit zone portion and a 4-bit digit portion.
How do you sort fields in JCL?
‘A’ means Ascending order. We can also sort the record by descending using ‘D’. Example 2: SORT a record in input file by two field….Syntax:
| Name | Description |
|---|---|
| Length | Length of the field to be compared |
| data format | Format of the field like CH, PD, BI, ZD etc,. |
| A/D | Specifies the sorting order, A- Ascending, B- Descending |
What is Inrec and Outrec in JCL sort?
Using SORT INREC in JCL. INREC adds, deletes, or reformats fields before the records are sorted or merged. so that performance will be improved OUTREC adds, deletes, or reformats fields after the records are sorted or merged.
What is Outfil?
OUTFIL control statements allow you to create one or more output data sets for a sort, copy, or merge application from a single pass over one or more input data sets. OUTFIL processing begins after all other processing ends (that is, after processing for exits, options, and other control statements).
What is the difference between zoned decimal and packed decimal?
specifies a method of encoding decimal numbers by using each byte to represent two decimal digits. Packed decimal representation stores decimal data with exact precision. The last byte contains the number’s sign as well as the last digit. Zoned decimal data produces a printable representation.
How to sort with omit, sum, and fields?
OMIT statement. COND specifies that input records with a character M in position 5 are to be omitted from the output data set. SORT statement. FIELDS specifies an ascending 8-byte character control field starting at position 20 and a descending 3-byte fixed-point control field starting at position 10. SUM statement.
What is the sum statement in sort JCL?
SUM statement. FIELDS specifies a 4-byte zoned-decimal summary field starting at position 16. Whenever two records with the same control fields (specified in the SORT statement) are found, their summary fields (specified in the SUM statement) are to be added and placed in one of the records, and the other record is to be deleted.
What are the fields in the SORT statement?
SORT statement. FIELDS specifies an ascending 8-byte character control field starting at position 20 and a descending 3-byte fixed-point control field starting at position 10. SUM statement. FIELDS specifies a 4-byte zoned-decimal summary field starting at position 16.
How are control fields specified in sort JCL?
FIELDS specifies a 4-byte zoned-decimal summary field starting at position 16. Whenever two records with the same control fields (specified in the SORT statement) are found, their summary fields (specified in the SUM statement) are to be added and placed in one of the records, and the other record is to be deleted.