Midrange News for the IBM i Community

Posted by: Bob Cozzi
Rogue Programmer
Cozzi Productions, Inc.
SQL iQuery Documentation - UDF and UDTF
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Published: 17 Jun 2019
Revised: 20 Aug 2019 - 1385 days ago
Last viewed on: 05 Jun 2023 (1473 views) 
  1. SQL iQuery - RUNiQRY CL Command
  2. CSV() - Read and Parse Comma Separated Values File
  3. CSV_VAL() Extract CSV Column Value
  4. CSV_XXXX() Extract CSV Column Value as xxxx
  5. CSV_COUNT - Retrieve Field Count
  6. ObjExist - Check Object Exits
  7. DTAARA - Data Area
  8. encode_URL Encode URL for the Web
  9. encode_TAG Encode HTML TAG Content
  10. FLDLIST - List the Fields of a Table
  11. FROMHEX - Fold 2-hex Chars into 1 Char
  13. MD5_HASH - UDF - Return MD5 Hash
  14. ifsStat - Get IFS File Attributes
  15. ifsExists - Check if IFS File Exists
  16. ifsFile - Query Contents of IFS Text File
  17. ifsDIR - List IFS Directory Entires
  18. DEPFILE - List Dependent Database Relations
  19. JOB - Get Job Name Component
  20. Job_ATTR - Job Attributes
  21. JOB_DATE Retrieve the Job Date
  22. JOBLOG - Write Message to Joblog
  23. Library List UDF and Procedures
  24. MBRLIST - Member List
  25. MCHINFO Machine Type and Model Number and OS version
  26. OSVER and OSVRM Get IBM i Version/Release
  27. PrintPDF - Print a PDF to a PDF Compatible Printer
  28. CPYTOPDF - Copy SPOOLED File to PDF file
  29. OBJ_LIST List Object in a Library
  30. LIB_LIST List Descriptions of Libraries on the Library List
  31. OBJ_EXPORTS List Exported Items from an Object
  32. OBJ_STRUCT Retrieve Objects Components
  33. RTVCMDD Retrieve Command Definition
  34. RTVJOBA - Retrieve Job Attributes
  35. RTVJOBD - Retrieve Job Description
  36. RTVLASTSPLF - Retrieve ID of Last SPOOLED File for this Job
  37. RTVxxx - Retrieve Various Objects Description Table Functions
  38. WATCHLIST - List Current Watches
  39. Polymorphic Qualified Name Syntax

Using IBM i? Need to create Excel, CSV, HTML, JSON, PDF, SPOOL reports? Learn more about the fastest and least expensive tool for the job: SQL iQuery.

iQuery.ifsExists() - UDF Published by: Bob Cozzi on 17 Jun 2019 view comments

Check IFS File Exists

The iQuery.ifsExists() UDF checks if the specified IFS file exists on the IFS. If it exists, it returns 1, otherwise it returns 0.


iQuery.ifsExists( 'IFS file and path' )

The IFS File and Path parameter identifies the name of the IFS file to confirm that it exists. If the file exists, the UDF returns 1 otherwise it returns zero (0).

Return Value

UDF Return Type Description
ifsExists integer A returned value of 0 means the files does NOT exist. A returned value of 1 means the file was found.



select iQuery.ifsExists('/home/cozzi/order12345.pdf') INTO :Exists
from sysibm.sysdummy1;
if (exists = 0); // File does not exist?
// create the IFS file

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