The file having Header and Trailer needs to be sorted but standard sort parameters will sort all records including header and trailer. So either exclude these from sorting or rearranges them after sorting. To avoid these additional steps we can use ICETOOL to sort detail records while keeping header(s) and/or trailer(s) in place. Let’s go […]
Header and Trailer – SORT Detail records between these Read More »
SPLICE normally requires reformatting the records of two or more data sets so they can be JOINED. In other words, SPLICE specified fields together from records that have the same specified numeric or character field values (duplicate values) but with different information. Because SPLICE overlays the WITH fields from the overlay record to the base
FILEAID is an interactive software product that increases data processing productivity in both program development and daily file and records maintenance. It is a data manipulation program that consolidates the functions of many standard IBM utilities. FILE-AID combines the data and file processing of the following nine IBM utilities into one tool.These utilities are IDCAMS, IEBGENER,
Many times LOW VALUES are present in the input file and the job abends. For a quick fix, developers have to replace LOW VALUES with SPACES or any other value like ZERO. Let’s take a look at the solution to the below-mentioned issues. How to replace all LOW-VALUES (X’00’) in a file with SPACE (X’40’).
Using SORT DATE Functions you can dynamically insert the date, like ‘yyyy-mm-dd’ or any format instead of a constant date like ‘2021-01-01’. There are multiple Date Functions by which you can reformat input dates. By using INREC, OUTREC, and OUTFIL statements to insert the current date or past date, or future date in a variety
DFSORT doesn’t have a built-in function for Convert Date – interpreting the month field of date in DDMMMYY formats as numeric values but you can use INREC and OUTREC statements to translate the month back and forth. Let’s take an example assuming that the DDMMMYY date is in positions 1-7. BUILD=(3,3, 3,3, CHANGE=(2,C’Jan’,C’01’,C’Feb’,C’02’,C’Mar’,C’03’,C’Apr’, C’04’,C’May’,C’05’,C’Jun’,C’06’,C’Jul’,C’07’,C’Aug’,C’08’, C’Sep’,C’09’,C’Oct’,C’10’,C’Nov’,C’11’,C’Dec’,C’12’),
VSAM file status code indicates the status of the operation. VSAM files require at least one data record to be initially loaded into the file before the file could be opened for input or update processing. This is because VSAM issues a VERIFY command upon opening a file to reset the end-of-file pointer. If the
VSAM file status code & VSAM file initialization Read More »
OUTREC control statement is used to reformat (adds, deletes, or reformats fields) each record after they are sorted, merged, or copied by specifying all of its items one by one. This statement supports a wide variety of parsing, editing, and reformatting tasks. We can even add spaces/zeroes/any character into the output record based on the requirement.
ICETOOL Utilities uses DFSORT to perform multiple operations on one or more data sets in a single job step. ICETOOL Utilities operations include the following: ICETOOL Utilities JCL Summary //JOBLIB DD Defines your program link library if it is not already known to the system. //STEPLIB DD Same as //JOBLIB DD //TOOLMSG DD Defines the
The VSAM EXPORT-IMPORT commands are usually used to take the backup and recovery. The EXPORT option is used to export the dataset or alternate index or catalog. EXPORT-IMPORT can be used with the VSAM dataset (KSDS, ESDS, RRDS, and LDS), Alternate indexes, and the dataset created by EXPORT can have only a sequential organization. EXPORT
VSAM cluster should be deleted using IDCAMS utility. VSAM DELETE command can be used to delete the VSAM or non-VSAM objects such as CLUSTER, GDG, Alternate Index, Alias, CATALOG, PS file, SPACE, USERCATALOG, etc. DELETE command removes the entry of the VSAM cluster from the catalog and optionally removes the file & freeing up the space.
The VSAM VERIFY command is used to verify, and if necessary, update, the end of file information in the VSAM catalog in order to make the catalog information consistent with the data file. The command adds correct End-Of-Data records to the file. This command cannot be used for an empty VSAM file where the high-used
VSAM PRINT command is used to print the contents of VSAM or non-VSAM datasets. Contents can be printed in various formats such as CHAR, HEX, or DUMP. We can specify our choice of format while specifying the parameters of the PRINT command. Up to 120 characters/digits are printed per line. If the record length is
VSAM REPRO command is used to copy data from one file(Input file) to another file(Output file). Input & Output files can be VSAM datasets (like KSDS, ESDS, RRDS, etc.) or a non-VSAM dataset (like PS file or a member of PDS). A few critical functionalities of REPRO are It is used to copy data from
VSAM Alternate index is the additional index that is created for KSDS/ESDS datasets (but not RRDS or extended ESDS) in addition to their primary index. A VSAM alternate index allows logical records of a KSDS or of an ESDS base cluster to be accessed sequentially and randomly by more than one key field. The key
VSAM DEFINE CLUSTER is used to define attributes for the cluster as a whole or for the components like data and index of the cluster. In other words, the parameters can be specified on the Cluster or Data Component, or Index Component. Usually, a sequence of commands commonly used in a single job step includes
Let’s say your input file has data that is delimited by PIPE or COMMA e.g. you have uploaded a CSV file to a mainframe or you extract database variable fields to a CSV or PIPE separated file. To open this file in a copybook or use it in the program it needs to be reformatted
CHANGE in OUTREC statement can be used to look up and change the content in the file while sorting. Build parameter is used to reformat records. Build give complete control over output file format. BUILD parameter can be used on INREC and OUTREC statements in SORT card. BUILD parameter is an alias of the FIELDS
We will generate XML statement from input records having fixed positions using SORT. We will use REMOVECC, HEADER1, BUILD, JFY, SHIFT, LEFT, LEAD, TRAIL, LENGTH, SQZ & TRAILER1 parameters. REMOVECC: The REMOVECC parameter generates reports that do not include ANSI carriage control characters that specify printer actions (for example, skipping a line or ejecting a
Record Selection for Output File can be done using STARTREC, ENDREC, INCLUDE/OMIT, SAVE Parameters. Use SAVE to include records for OUTFIL processing that have not been included in any other OUTFIL group. If SAVE is specified on more than one OUTFIL group, then each of these OUTFIL groups gets the records that were discarded from
The JOINKEYS File Match utility help in comparing two files. JOINKEYS File Match operation is controlled by JOINKEYS, JOIN, and REFORMAT control statements. The SORTJNF1 and SORTJNF2, are the DD statements used to specify the files which will be used to perform the join operations. During JOIN operation on two files, each record from the
The OUTFIL control statement describes the output file(s) and the processing to be done on the output records. OUTFIL processing is supported for sort, merge, and copy applications. Use the OUTFIL control statement to create multiple output files without making multiple passes through the input data. OUTFIL control statement Examples Example 1 The following example
The MERGE control statement must be used when a merge operation is to be performed; this statement describes the control fields in the input records on which the input data sets have previously been sorted. Use the MERGE control statement: To perform a merge application, where it describes the control fields for the previously sorted
The INREC control statements allow users to reformat an input record before processing. The user can Define the parts of an input record to be included in the reformatted input record. Denote the order they are to appear. How they are to be aligned. Insert blanks and binary zeros as separators before, between, and after
GDG Stands for ‘Generation data group’ & is used to catalog a group of datasets that have common and similar data formats, and these datasets can be referenced by relative generation and version number. It is mostly used to take periodic backups of critical data for future reference. All datasets within GDG share the same
