RETRIVING DELETED RECORDS :- I'm frequently asked how to retrieve deleted records from an unjournaled physical file when the deleted records have not yet been removed from the file. Utility UNDEL lets you undelete records in a physical file. This public domain program is available in CISC and RISC versions, and the complete source code is available for download at: UNDEL for AS/400 Save File (RISC): http://www.as400network.com/sharewarefiles/undelris.zip UNDEL for AS/400 Save File (CISC): http://www.as400network.com/sharewarefiles/undel.zip UNDEL for AS/400 Save File (Source code): http://www.as400network.com/sharewarefiles/undelsrc.zip The utility takes advantage of the fact that deleted records in physical files are only flagged as deleted, and the record data still exists until it is overwritten or the file is reorganized with a utility such as RGZPFM. UNDEL simply reads the deleted record, then reuses the record by writing over it with the new record (thus eliminating the flag for the deleted record). Some homegrown and commercial utilities copy the file containing undeleted records to a save file, then use a program to read the save file, which contains live and undeleted records, to a file to undelete the records. The UNDEL utility is superior to the SAVF technique because there's no need to copy the file to a save file, which is especially important for really large files. When run, UNDEL displays the physical file records in their unformatted, raw text form. You can either position the display to a given relative record number or use F19 or F20 to find the previous and next deleted record, respectively. The utility also includes online help, which is almost unheard of for free utilities. Other utilities include the ability to undelete records. You can use the RTVDLTRCD command in the old QUSRTOOL (no longer supported by IBM). QUSRTOOL is now a commercial product called TAA Productivity Tools ( http://www.taatool.com ). The free file editor WRKDBF has a built-in undelete capability ( http://www.wrkdbf.com ), and several commercial file editors can undelete records. For a complete list of file editors, go to http://www.sourcebook400.com, select "Programmer Tools" under "Product Category," then select "File Editors."

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Can we create 300 logical files based on a single physical file using the CRTLF command only once?.

8 Answers  

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How to change the name of physical members Dynamically?

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Write the subfile logic program for the given concept. Load the data to the subfile depends upon the designation where designation is not a key field?

2 Answers   TCS,

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When a object will be locked & when a record will be locked? Plz explain.

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1.String operatio such as moving the characters to the variables? 2.what are the building functions for check file longs? 3.which of the following methods will make externally describe file fields available to a program? A: A/copy statement that specifies the library file and member of the field reference file source code B: A data structure definition specification that names the file on the EXTNAME keyword C: A data structure definition specification that names the file on the IMPORT keyword? D: A Definition specification for each desired field with the REFFLD keyword

1 Answers   CSC, CTS,

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wat is curser?? and its types???

4 Answers   HSBC,

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how to find whether a date format is valid or not in RPG400 not in RPGILE.Can you please write the coding for this sir,i'm new to AS400.Please help.

2 Answers   iGate,

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How do you find whether a job is a batch job or interactive?

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1.I have a Physical file with 100 records, No duplicates exists, all are Unique,But while i am running Runqry utility i am getting only 80 records..What could be the reason?

3 Answers   Cap Gemini,

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WHAT IS MEANT BY SIGNATURE VAILOTION ERROR

1 Answers   IBM,

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i 'm new to as/400.in an interview i was asked this question.give a practical example for passing information or data through local data area. I know only that data area is an object used to store tiny bits of data or it can store one value at a time and it is used to store frequently changing values or datas.thats all i know about data area can any one tell me how local data area and user defined data area are used to pass data between jobs with a example or coding.thanks in advance.

2 Answers   CTS,

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