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Posted by: Bob Cozzi
Rogue Programmer
Cozzi Productions, Inc.
Chicagoland
SQL iQuery Documentation - UDF and UDTF
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Published: 13 Jun 2019
Revised: 20 Jun 2019 - 487 days ago
Last viewed on: 19 Oct 2020 (310 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
  12. GET CPUCNT, CURLIB, ENV, SRLNBR, SYSNAME
  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.fldList - UDTF Published by: Bob Cozzi on 13 Jun 2019 view comments

List Field (Column) Attributes for a File (Table)

The iQuery.fldList() UDTF returns one row for each column (field) in the specified table (file). 

The information returned in similar to the WRKIQRY command or the classic IBM i CL command named DSPFFD.

UDF Return Type Description
fldList TABLE Returns a resultSet, one row for each column in the specified table.

Parameters

iQuery.fldList( library-name, file-name )

The library-name is the name of the library that contains the file-name specified on the second parameter.

The file-name is the name of the file whose fields properties shall be returned.

Result Set Columns

Column Type Description
COLUMN varchar(10) The system column (field) name.
FILE varchar(10) The system table (file) name.
LIBRARY varchar(10) The system schema (library) name.
DATATYPE varchar(10) The data-type of the column The data-type is spelled similar 
LENGTH INT Field length (declared length)
DECPOS smallint For numeric fields, the number of decimal positions
BUFFERSIZE INT Number of bytes the field occurpies in the record.
CCSID INT The CCSID of the field.
HEADING varchar(60) The COLHDG or "TEXT IS" headings for the field.
TEXT varchar(50) The field text description.
LONG_COLUMN_NAME varchar(128) The long column name
LONG_TABLE_NAME varchar(128) The long table name
LONG_SCHEMA_NAME varchar(128) The long schema (library) name

Example

select * from table( iQuery.fldList( 'MYLIB', 'CUSTOMER') ) ffd;

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