Introduction

QMF stands for Query Management Facility. It is a tool developed by IBM that helps users interact with databases — especially IBM’s Db2 (a relational database system used on mainframes).

Think of QMF as a friendly interface that allows users to:

  • Write and run SQL queries
  • View data
  • Create reports
  • Analyze information
  • Share data in a readable format

It was originally designed to work with mainframe systems, particularly IBM z/OS, but now also works on other platforms.

What is QMF used for?

QMF is mainly used for:

  • Querying Databases - Users can write SQL queries to extract data from DB2 tables.
  • Generating Reports - Users can format query results into professional-looking reports with:
    • Headers, footers, and page breaks.
    • Sorting, grouping, and calculations (sum, average, etc.).
    • Charts and graphs (in newer versions).
  • Ad-Hoc Data Analysis - Business users can quickly retrieve data without writing complex programs.
  • Exporting Data - Query results can be exported to file, csv and notepads.
  • Storing and Reusing Queries - Users can save frequently used queries for later execution.

Advantages

  • Easy-to-use GUI and command-line interface.
  • Business users can query data without COBOL/JCL knowledge.
  • Optimized for DB2, making queries efficient.
  • Flexible formatting options for professional reports.
  • Works well with TSO/ISPF, SPUFI, and other IBM tools.
  • Saves time by storing and reusing SQL queries.

Disadvantages

  • Not designed for distributed databases like Oracle or MySQL.
  • Complex queries on huge tables can be slow.
  • Requires IBM licenses, which can be expensive.
  • Some reporting features require training.