Magic. Would the magnetic fields of double-planets clash? M11 is a built-in edit-mask. You can use X or 1X to specify a single blank. The output file will contain the unique employee numbers sorted in ascending order. OUTREC as equivalent of BUILD is only on OUTFIL. Explnation: In above case all records will be copied from input file to output file. Example:IFTHEN abbreviate a word from Input File JCL does not have BUILD/OUTREC statements. OUTREC in SORT JCL - Example 1 If you want to add sequence number to the output data after sorting input data. JCL - SORT OUTREC Fields - JCL Tutorial - IBMMainframer . Display Filter View Print Options Help, WER268A SORT STATEMENT : SYNTAX ERROR, ****** ***************************** Top of Data ******************************. 4. As you coded later, SFF should work depending on your release of Syncsort. You can use X or 1X to specify a single blank. 1) Sort fields. The DATE1 operand corresponds to a Cyyyymmdd constant for todays date. There are multiple Date Functions by which you can reformat input dates. OUTREC= (1,10,50,4,40,4) Both examples will reformat the record so that it consists of the first 10 bytes of the input record, followed by the 4 bytes starting at position 50, followed by the 4 bytes starting at position 40. The advantage of the above types of solution is that they basically use very few resources. Previous OUTREC OVERLAY=(60:SEQNUM,2,ZD,START=5,INCR=5) Generates the sequence number of length 2 from 60th byte. OMIT specifies that reformatted output records with 0 or 9 in position 81 (header or trailer records) and a sequence number in positions 82-83 greater than 1 (second and subsequent header or trailer records), are omitted. INREC adds, deletes, or reformats fields before the records are sorted or merged. OUTFIL 03 gets all the not 0000s which are not 'Y'. Does a summoned creature play immediately after being summoned by a ready action? We can even add spaces/zeroes/any character into the output record based on the requirement. OUTREC FIELDS=(1,29,JFY=(..,PREBLANK=C'(),..),..) blank out the (). The sequence number will be 1 for the first header record, 2 for the second header record and 3 for the third header record. The followingcontrol statements will transform records containing a field of formatcyymmddto the formatyyymmdd. default of 15 digits. Next . Overwrite input record content. Example: Reformat each record by specifying just the items that overlay specific columns. @zarchasmpgmr: JCL does not allow multiple BUILD/OUTREC statements. The sequence number starts at 5 and is incremented by 5 each time. To calculate percentage (Number of records in FILE1/Number of records in FILE2)*100 using DFSORT in Mainframe. Each FILE DD has only 1 record from the below and all the records are copied to the sortout. Good Data analytic skills (Data Warehousing and BI). However while writing to output file, two spaces will be added between fields at position 1-5 and 6-10. Batch split images vertically in half, sequentially numbering the output files. I have taken out the "columns" from the BUILDs (those numbers followed by a colon). you can have a common BUILD for all the includes I guess. Multiplication division using DFSORT utility in Mainframe The SORT, SUM and OUTREC statements are as follows: SORT FIELDS= (106,4,CH,A) SUM FIELDS= (162,4,BI,166,4,BI) OUTREC FIELDS= (106,4,162,4,166,4) Table 2 shows the output. VIJAY SUN 30000, //SORTSTEP EXEC PGM=SORT This sort card will insert 4 binary zeroes between the first and second fields of your output file. decimal digits with leading zeros. // UNIT=TEST,SPACE=(CYL,(50,10),RLSE) If clause 1 is not satisfied, its overlay item is not applied and processing continues. The INREC control statement allows you to reformat the input records before they are sorted, merged, or copied. . JOHN MON 08000 Affordable solution to train a team and make them project ready. You can insert blanks before, between, or after fields. You can use four types of IFTHEN statements as follows: Use one or more WHEN=INIT clauses to apply build or overlay items to all of your input records. //SORTOUT DD DSN=DEPT.EMPL.DATA.OUTPUT2, But if any of the fields in your records have variable positions or lengths, you can use PARSE to treat them as fixed parsed fields in BUILD or OVERLAY. If clause 2 is satisfied, its build items are applied and processing continues. 55555SMITH R&D 25000 I will go through your answer, Multiplication division using DFSORT utility in Mainframe, How Intuit democratizes AI development across teams through reusability. If the last program to do so does not already produce counts of what it has read/written (to my mind, standard good practice, with the program reconciling as well) then amend the programs to do so now. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. OUTREC keeps only positions 1-80 for the OUTFIL output records, thus removing the identifier byte and sequence number we added in positions 81-83 with the INREC statement (we do not want these temporary fields in the OUTFIL output records). The option STOPAFT will stop reading the input file after 10th record and terminates the program. We will try to explore the many uses of OUTREC in this article with some examples . To subscribe to this RSS feed, copy and paste this URL into your RSS reader. v If WIDTH(n) is specified and the calculated record length is greater If there is no match found NOMATCH=(11,3) , data at 11th position of input file will be copied as it is to output file. //SYSPRINT DD SYSOUT=* Please note that file in SYSUT2 takes the same DCB as that of the SYSUT1 in the above example. IEBGENER copies the file in SYSUT1 to file in SYSUT2. This statement supports a wide variety of parsing, editing, and reformatting tasks. INREC is useful in case of the large input files. For the input record: NEW YORK,ABC NEW JERSEY,XYZ,NEW YORK, The output record would contain: NY,ABC NJ,XYZ,NY. length required to write the count record and uses it as follows: v If WIDTH(n) is specified and the calculated record length is less Using BUILD in SORT Build parameter is used to reformat records. All of the data which passes the INCLUDE will be on one of the three OUTFILs, and only one. There are two files FILE1.DATA and FILE2.DATA OUTREC FIELDS=(1,29,JFY=(.., LEAD=C'<,TRAIL=C>),..) adds the C< as a lead and C> as a trail. The answer to your first question is simply that you did not tell C'SAT',C'SATURDAY'), - INREC FIELDS=(..,SEQNUM,4,ZD) - Generate the sequence number from 29th byte of length 4. JOHN 28000 00004, SORT FIELDS=COPY present. 5) Create output record with fewer fields. IFTHEN=(WHEN=NONE,BUILD=(1:1,80)) If no matches to conditions specified in WHEN, copy the 80 bytes data from input file to output as it is. 1,6,ZD means "the information, at this moment, at start-position one for a length of six, which is a zoned-decimal format". OUTREC: Specifies how records are reformatted after they are sorted, copied, ormerged. OUTREC in SORT Using OUREC in SORT JCL OUTREC adds, deletes, or reformats fields after the records are sorted or merged. JCL OUTREC FILEDS or OUTREC BUILD | Mainframebug.com If clause 3 is not satisfied, its build items are not applied and processing continues. SORT FIELDS=COPY IFTHEN Syncsort utility with examples - Tech Agilist JOHN 28000, //SORTSTEP EXEC PGM=SORT . OVERLAY says "update the information in the current record with these data-manipulations (BUILD always creates a new copy of the current record). OUTREC method - IBM // DISP=(,CATLG,DELETE), OUTREC FIELDS=(1,29,JFY=(SHIFT=LEFT,..),..) Justifies the data in the first 29 bytes to left. One way, if on-the-dot accuracy is not required, is to talk to the technical staff who manage your storage. Convert the date from mmddccyy to ccyymmm(julian date). You can create the reformatted OUTREC records in one of the following ways using unedited, edited, or converted input fields. INREC OVERLAY operation is used in order to rewrite data in input file before copying to output. Amusing. How to use Slater Type Orbitals as a basis functions in matrix method correctly? OUTREC FIELDS=(1,80,SQZ=(.., MID=C,)) the data which had spaces in between separated by ,. . Reformatting Records Using OUTREC - Part 2 We will explore few more common uses of OUTREC with examples below 1 . /*, ----+----1----+----2----+----3----+----4 Otherwise, you can let ICETOOL calculate and set the To learn more, see our tips on writing great answers. rev2023.3.3.43278. BUILD parameter is an alias of the FIELDS parameter. produced by ICETOOL for this operation. . Example: Reformat each record by specifying just the items that overlay specific columns. I don't know what "Code" tags are. //SORTIN DD DSN=DEPT.EMPL.DATA.OUTPUT1,DISP=SHR This statement supports a wide variety ofparsing, editing, andreformatting tasks. C'TUE',C'TUESDAY', - // UNIT=TEST,SPACE=(CYL,(50,10),RLSE) TOT calculates the number of records in the input file. Also skills in Mainframe. Use one or more WHEN=(logexp) clauses to apply build or overlay items to your input records that meet specified criteria. DFSORTis a very good concept for record manipulation. OUTREC method INCLUDE COND=(5,1,GE,C'M'),FORMAT=CH OUTREC FIELDS=(10,3,20,8,33,11,5,1) SORT FIELDS=(20,8,CH,A,10,3,FI,A) SUM FIELDS=(38,4,BI) Theseexamples illustrate how a fixed-length input data set is sorted and reformatted for output. What is \newluafunction? Other usages with Inrecand Outrec:(SOurce IBM). You have your counts. OUTREC FIELDS= (1,20,CTOTAL,5Z,21,10), ----+----1----+----2----+----3 FINDREP indicates doing a find and replace operation. it came up with its own figure. JOHN THU 28000 Find centralized, trusted content and collaborate around the technologies you use most. Alternatively, something has already previously read or written those files. C'THU',C'THURSDAY', - If your LRECL does not need to be set to a particular In addition to this it will replace 3 letter day-of-week name at position 11 in input file with its full name at position 11. CSM, CSPO, CSD, CSP, A-CSPO, A-CSM are registered trademarks of Scrum Alliance. OVERLAY - Replace the selected columns without impacting other columns. INREC statement. If you have any doubts or queries related to this chapter, get them clarified from our Mainframe experts on ibmmainframer Community! 4-digit sequence number is added in output at position 10, starting at 1000 and incremented by 2 for every record. Formatting output file after an INCLUDE condition in JCL, How Intuit democratizes AI development across teams through reusability. The location and length of the number sold field. 2 Incredible DFSORT Insert Separators Examples in JCL | Srinimf. OUTREC FIELDS=(..,55,8,Y4W,ADDDAYS,+2,TOJUL=Y4T(/),..) adds +2 days to the date in the input file and converts it to Julian date before writing it to output file from 55th position. Not the answer you're looking for? This enables all the records in a group to be sorted together. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Syncsort - sort, ZD to PD, sum PD, PD to ZD, Build output -IBM Mainframes INREC:Specifies how records are reformatted before they are sorted, copied, or merged. Table 1. /*, ----+----1----+----2----+----3 Use IFTHEN statements if you want to insert, rearrange, delete or overlay fields in different ways for different records. by specifying an appropriately higher d value for DIGITS(d). SUM FIELDS=NONE removes duplicates on fields specified in SORT FIELDS. . AKSHAY TUE 10000 INREC FIELDS=(1,20,X,25,6,X,) - Reformat the input file of length 1 to 30 bytes(1 to 20 bytes plus 25 to 6 bytes). You can mix p,m fields (fixed fields) and %nn fields (parsed fields) in BUILD and OVERLAY. CHANGE=(10 indicates that replacing string will occupy 10 letter positions. The SORTIN LRECL is 80. Overlay lets you change specific existing columns without affecting the entire record. IFTHEN clauses let you use sophisticated conditional logic to choose how different record types are reformatted. Enjoy unlimited access on 5500+ Hand Picked Quality Video Courses. JCL is for those statements that begin with // like DD, EXEC, JOB, OUTPUT, etc. To avoid confusion (due to the "overloading" of OUTREC), don't use OUTREC on OUTFIL, which is for "backwards compatability", use the modern BUILD instead, which is entirely equivalent. If clause 2 is not satisfied, its build items are not applied and processing continues. To display hexadecimal representation of input value. Add two days, two years to the date in the input file. record length. Build parameter can be used in OUTFIL statement also. Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2, How to change the properties of a ps or an pds, Passing symbol value using DFSORT to file, mainframe - generate a report with sum of particular fields. What sort of strategies would a medieval military use against a fantasy giant? After step 4) the sign is missing. For length. TRAN=UTOL, can be used to convert data from upper case to lower case. JCL - SORT INREC Fields - JCL Tutorial - IBMMainframer Replace Low Values with Spaces using SORT, JIRA Workflow for Optimal Project Tracking, Automatically Assign Issues JIRA Automation, JIRADashboard Popular Gadgets for Agile Teams, Vertical Slice vs Horizontal Slice User Story. SORT statement. If clause 6 is satisfied, its build items are applied and processing stops. Making statements based on opinion; back them up with references or personal experience. The sequence number added in positions 82-83 will allow us to keep only the first header record and the first trailer record. AKSHAY 10000 00002 CSM, CSPO, CSD, CSP, A-CSPO, A-CSM are registered trademarks of Scrum Alliance. BUILD gives you complete control over the items you want in your reformatted OUTREC records and the order in which they appear. How can I use SYNCSORT to format a Packed Decimal field with a specifc sign value? Using OUREC in SORT JCL - Example. OUTREC FIELDS=(..,40,8,ZD,EDIT=(SII,III,IIT),SIGNS=(,-))converts the 8 digit ZD to M12(SII,III,IIT) and displays sign only for negative values. This example shows how you can use three input files, each with a header record (HDR), detail records (DTL) and a trailer record (TRL), and create an output file with one header record with the current date, the sorted detail records, and one trailer record with the current date. Specifies the record length and LRECL you want ICETOOL to use for the ICETOOL always calculates the record What is issuing the message? View all posts by Srini. Build gives you complete control over the items you want in your reformatted OUTRECrecords and the order in which they appear. 25,6 - data at 25th position of input file with length 6 copied to 21st position(because 1 to 20 already data copied so it will continue from next position) of output file. //SORTIN DD DSN=DEPT.EMPL.DATA.INPUT,DISP=SHR If the records are fixed-length, spaces would be appended to the end of the record to replace the deleted characters. To insert 5 blanks, write 5X between the two fields. The 0, 1 or 9 identifier byte added in position 81 allows us to sort the header records (0) first, followed by the detail records (1), and then the trailer records (9). Though OUTREC is one of the most frequently used features of DFSORT, many still find a SORT cards with OUTREC FIELDS= (21:106,4,35:1,75) confusing . Example: INREC BUILD= (1,20,C'ABC',26:5C'*', 15,3,PD,EDIT= (TTT.TT),21,30,80:X) OVERLAY: Reformat each record by specifying just the items that overlay specific columns. //SYSOUT DD SYSOUT=* //SYSPRINT DD SYSOUT=* This will make the whole process inefficient. BUILD gives you complete control over the items you want in your reformatted OUTREC records and the order in which they appear. OUTREC FILEDS or OUTREC BUILD It is used to reformat each record by specifying all of its items one by one. STEVE MON 20000 Example: Experienced software developer. Connect and share knowledge within a single location that is structured and easy to search. Lets assume N is 30 days. Remove the () from data in first 29 bytes and remove spaces between the data and separate the data with ,. Build give complete control over output file format. We make use of First and third party cookies to improve our user experience. Can Martian regolith be easily melted with microwaves? You can delete, rearrange and insert fields and constants. OUTREC FIELDS=(1,80,SQZ=(..,PREBLANK=C'(),..)) Blanks out the (). We share solutions for developer day to day problems and interview questions. JCL - Examples Example 1: Alocate PS dataset using IEFBR14 UTILITY //STEP01 EXEC PGM=IEFBR14 //SYSPRINT DD SYSOUT=* //SYSOUT DD SYSOUT=* //SYSDUMP DD SYSOUT=* //DD1 DD DSN=userid.IBMMF.PSFILE, // DISP= (NEW,CATLG,DELETE),VOLUME=SER=DEVL, // SPACE= (TRK, (1,1),RLSE),UNIT=SYSDA, // DCB= (DSORG=PS,RECFM=FB,LRECL=80,BLKSIZE=800) //* JOINKEYS specifies the field on which the two files are compared. OUTREC FIELDS=(..,55,8,Y4W,TOJUL=Y4T)- data from 55th byte of length 8 will be converted to Y4T Julian date format. JOHN 08000 2X in OUTREC FILEDS statement indicates two spaces and thus record length of output file will be 12. If clause 6 is not satisfied, its build items are not applied and processing stops. . Your client may not be so happy at the end of the year to find that they've paid for reading and "counting" 7.3m records just so that you can set an RC. Example: Reformat different records in different ways by specifying how build, overlay, find/replace, or group operation items are applied to records that meet given criteria. BUILD parameter can be used on INREC and OUTREC statements in SORT card. You can use nZ to specify n binary zeros. IFTHEN=(WHEN=(30,5,CH,EQ,Csmall),OVERLAY=(45:C***)) overlays the marks of the student with *** who are belong to small. Relation between transaction data and transaction id. SORT FIELDS= (106,4,CH,A) SUM FIELDS= (162,4,BI,166,4,BI) OUTREC FIELDS= (106,4,162,4,166,4) Table 2 shows the output. 2) Convert ZD to PD; example of ZD formats are '000000000002.459000-' and '0000000000000005.42-'. The question is unclear, so this is just a guess at what was wanted. How to use Slater Type Orbitals as a basis functions in matrix method correctly? 21,10) If desired, a simple report can be created using OUTFIL IFTHEN to identify each different record type, format it appropriately, and remove the data added by PUSH. OUTREC FIELDS=(1,80,SQZ=(SHIFT=LEFT,..)) Squeezes the data in 1-80 bytes to the left. The same functionality can be achieved using ICETOOL also. In the input file, the content in position 1,6 is overwritten to the position 47,6 and then copied to the output file. Thus total record length of output file is 30. // DCB=(RECFM=FB,LRECL=30,BLKSIZE=0), OUTREC keeps only positions 1-80 for the OUTFIL output records, thus removing the identifier byte and sequence number we added in positions 81-83 with the INREC statement (we do not want these temporary fields in the OUTFIL output records). OUTREC syntax - IF in SORT, FINDREP, OVERLAY - mainframegurukul.com You can assign up to 1000 parsed fields (%0-%999) to the variable fields you want to extract. JOIN UNPAIRED does a full outer join on the two files. Example 1: Formating a file (USING INREC) //SYSIN DD * SORT FIELDS=COPY INREC FIELDS= (7:2,5,20:10,3) /* Explanation: SORT FIELDS=COPY It is for copy records to output file INREC FIELDS= (7:2,5,20:10,3) - Here we have two formattings, 7:2,5 - data at 2nd position of input file with length 5 copied to 7th position of output file value by not specifying WIDTH(n). Inputfile for SORT JCL 10 suresh 20000 01 20120203 34 20 NARENDRA 40000 06 20120925 AB 30 jacob A 25000 07 20111018 1A 40 RAMESH 34000 03 20120610 2C 50 Kishore 50000 02 . C'SUN',C'SUNDAY', - When INREC is used reformatting of records is doneBEFOREthe sort. The finaloutput will be the same. Reformatting records after sorting with BUILD or FIELDS - IBM Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. 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. Brackets affect the "precedence" of numeric operators in a normal way (consult the manual to be familiar with the precedence rules). Identify those arcade games from a 1983 Brazilian music video, AC Op-amp integrator with DC Gain Control in LTspice. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. //SYSOUT DD SYSOUT=* If you input file record is 2015/04/0415:30 theoutput will be Run Date:2015/04/04|Run Time:13:30. SORT FIELDS=COPY instead. Product Owner Interview Questions and Answers Part II, JIRA Workflow for Optimal Project Tracking, Automatically Assign Issues JIRA Automation, JIRADashboard Popular Gadgets for Agile Teams, Vertical Slice vs Horizontal Slice User Story, WHEN=(logexp) clauses and WHEN=ANY clauses. // DISP=(,CATLG,DELETE), Exactly what else depends on your actual task, which we don't know, we only know of the solution you have chosen for your task. OUTREC FIELDS=(1,29,..) Copies the first 29 bytes of data from input file to output as it is. If you do not specify a WHEN=NONE clause, only the WHEN=INIT changes (if any) are applied to input records that do not meet the criteria for any of the WHEN=(logexp) clauses. If you use DIGITS(d) and the count overflows the number of digits // DCB=(RECFM=FB,LRECL=40,BLKSIZE=0), Making statements based on opinion; back them up with references or personal experience. Multiply the marks with 10 and store them in the same record. Normally it will be given with Join Keys or during the sort. is the protected brand of Scrum.org. OUTREC FIELDS=(1:1,30,36:SEQNUM,5,ZD) Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2. OVERLAY says "update the information in the current record with these data-manipulations (BUILD always creates a new copy of the current record). IFTHEN - Give us the more flexibility in handling different types of records, in . Explnation: Above statement will convert data field at position (1-10) of input file to Hexa-decimal representation and write it to output file. This is from the DFSORT Application Programming Guide: WRITE(countdd) Specifies the ddname of the count data set to be OUTREC FIELDS=(1:6,25,26:46,5) Does the below answer suffice? . Not the answer you're looking for? appropriate record length and LRECL by not specifying WIDTH(n). In the following example an INREC statement will be used to abbreviate each instance of NEW JERSEY and NEW YORK in a record when position 24 of the record contains a X01. . Read the answer please. . Output file for SORT JCL Assume the current date is 4-Apr-2012. WRITE(countdd) is specified. Requirement: To display hexadecimal representation of input value. The output file will contain the unique employee numbers sorted in ascending order. You can delete, rearrange and insert fields and constants. example, 80), or if you want to ensure that the count record length The following is an example of the IFTHEN parameter: PMP, PMBOK, PMI-ACP and PMI are registered trademarks of the Project Management Institute, Inc. Professional Scrum Master, PSM, Professional Scrum Product Owner, PSPO etc. OUTREC FIELDS=(..,6,73)copies the input file data from 6th byte to the output file from 8th byte onwards as it is. Letsinsert the below data types between the fields in the output file. What are the RECFM and LRECL of your inputs? The nature of simulating nature: A Q&A with IBM Quantum researcher Dr. Jamie We've added a "Necessary cookies only" option to the cookie consent popup. Do roots of these polynomials approach the negative of the Euler-Mascheroni constant? //SYSOUT DD SYSOUT=* OUTREC OVERLAY=(30:30,4,TRAN=LTOU,..) Converts the data lower to upper from 30th position of length 4 and writes to output from 30th position. How should I go about getting parts for this bike? SUM FIELDS=NONE removes duplicates on fields specified in SORT FIELDS. INREC WHEN=GROUP can be used with BEGIN to identify a header record starting a group and END to identify a trailer record ending a group. You can mix p,m fields (fixed fields), and %nn fields (parsed fields) in BUILD and OVERLAY. Specifies d digits for the count in the output record, overriding the Reformatting Records Using OUTREC - Part 1 OUTREC is processed after SORT/MERGE and SUM (if present) otherwise after INREC. so that performance will be improved SORT OUTREC Example JCL. Explnation: Above statement will convert data field at position (1-20) of input file to its uppercase form and write it to output file. C'MON',C'MONDAY', - Include 1 excludes what Include 2 and 3 will select, likewise Include 2 excludes what 1 and 3 will select. Thus total record length of output file is 40. 3) Sum new PD fields. record length and LRECL must be set to a particular value (for You can assign up to 1000 parsed fields (%0-%999) to the variable fields you want to extract. 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. 4) Convert PD back to ZD. INREC= and OUTREC= are invalid. CSM, CSPO, CSD, CSP, A-CSPO, A-CSM are registered trademarks of Scrum Alliance. Your comment must have arrived while I was writing the answer. //SORTIN DD DSN=DEPT.EMPL.DATA.OUTPUT1,DISP=SHR However, while writing to output file, only fields EMP-NAME (I/P file POSITION 6-25) and EMP-SALARY (I/P file POSITION 46-50) should be written to it, Requirement: To copy all records and while writing output records, all records should be appended with sequence number, INSERTING SPACE, ZEROES or CHARACTER String to your output, Requirement 1: Copy input file to output file as it is just add two spaces after writing first field of length (1-5). You can use nX to specify n blanks.To insert 10 blanks, write 10X before the first field. 88888JOHN PURCHASING 08000 Following records will be selected from the input file. Writing Only Publisher, Number In Stock, and Number Sold Fields. The first 10 records need to be written to output file. AKSHAY 10000 Reformatting records after sorting with BUILD or FIELDS - IBM OUTREC statement used above will copy first 10 bytes from input file & convert all letters to lowercase letters. Overlay lets you change specific existing columns without affecting the entire record.
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