• The Four Hundred
  • Subscribe
  • Media Kit
  • Contributors
  • About Us
  • Contact
Menu
  • The Four Hundred
  • Subscribe
  • Media Kit
  • Contributors
  • About Us
  • Contact
  • Guru: SELECT INTO And Arrays

    March 8, 2021 Ted Holt

    I got egg on my face again. I told a couple of colleagues that they could use the SELECT INTO statement to load multiple rows into an array data structure in an RPG program. Boy, was I wrong! I had confused SELECT INTO with the FETCH statement, of course, which retrieves data over which a cursor has been declared.

    But the matter continued to nag me. I much like the simplicity of SELECT INTO. There’s no cursor to declare, open, fetch from and close, the same reason I like the FOR loop in SQL PL. It seemed (and continues …

    Read more
  • Guru: Scalar Use of LISTAGG

    August 24, 2020 Ted Holt

    The SQL LISTAGG function is as handy as a pocket. Only recently I used it to build a string of comma-separated values (CSV) to populate a drop-down box. It sure beats a cursor and a loop. I’ve noticed in my reading that LISTAGG can be used for both aggregate and scalar purposes under Oracle. Db2 doesn’t support the scalar use, but I found another way to do the same thing.

    To see what I’m talking about, check out example 7 in the article Oracle LISTAGG Function Usage, Tips & Examples, by Ben Brumm. I recommend studying the entire article; …

    Read more

Content archive

  • The Four Hundred
  • Four Hundred Stuff
  • Four Hundred Guru

Recent Posts

  • IBM’s Bob AI Assistant Can Now Live In Your Datacenter
  • Start Where the Data Lives: Best Practices for Taking IBM i Into AI
  • Guru: A Modernization Experiment Using IBM Bob 2.0
  • How Are IBM i Shops Using AI? Fortra and COMMON Want to Know
  • IBM i PTF Guide, Volume 28, Number 34
  • It Is Time Once Again To Take The IBM i Marketplace Survey
  • PHP’s Evolution On The IBM i Platform Continues
  • Protecting IBM i Data For The AI Revolution
  • Guru: Two More Small But Handy RPG Enhancements: LIKE(*EXT) And %LOOKUPNE
  • IBM i Integration Gives Costco Shoppers Real-Time Inventory

Subscribe

To get news from IT Jungle sent to your inbox every week, subscribe to our newsletter.

Pages

  • About Us
  • Contact
  • Contributors
  • Four Hundred Monitor
  • IBM i PTF Guide
  • Media Kit
  • Subscribe

Search

Copyright © 2025 IT Jungle