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IBM AS400 Interview Questions
Questions Answers Views Company eMail

What is the function of SEU ?

1 1683

What is the use of SDA ?

1 1759

What is a library list ?

1 1595

What is the difference between Physical and Logical files ?

1 1776

What does the keyword UNIQUE mean ?

1 1796

What is FCFO, FIFO, LIFO in Database environment ?

1 1746

How many record formats can you have in a Physical file and in a Logical file ?

1 1731

What is keyword PFILE specifies ?

1 1794

What is a Join Logical File, Can it be used for Update ?

1 1888

Is it possible to join the same file to itself ?

1 1785

What does SDA stands for ?

1 1782

What is the symbol used for defining a new field in SDA?

1 1736

What is the symbol used for shifting fields in SDA?

1 1855

What is the symbol used for copying & moving new field in SDA?

1 2085

What are the different types of specification available in RPG/400 ?

1 1575


Un-Answered Questions { IBM AS400 }

If I want to execute Sftp commands(LS & GET) stored in Physical file from CL program automatically...Can u Plz tell me how can I do this?...How the script will look?? THANX FOR NY HELP...

2777


what opcode will be used to test the zone of a character field?

1784


Where the QTEMP library will get created? if the the answer is QSYS, then howcome more than one job can create same library name(QTEMP) in QSYS? what is the uniqueness of QTEMP? For example, run the below command in different workstation WRKOBJ QSYS/QTEMP And take 8 in the option to check the description. both will have different info. so where(which LIB) exactly the QTEMP is stored?

8611


how can database records be read without lock ?

1951


Define perform? And its types?

987


how to define global parameter in ile ?

1191


define subsystem?

1629


how do you pass parameters in cl?

1824


what is the difference between normal upddta to pf and updating using dfu program?

1340


what are different record spacing keywords in rlu ?

1937


what does check opcode is used?

1786


what is a primary file?

1741


what does the opcode free do?

1952


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."

15457


what does opcode post do ?

1772