Tue, Oct
0 New Articles

TechTip: DB2 for i's Sample Database

  • Smaller Small Medium Big Bigger
  • Default Helvetica Segoe Georgia Times

The built-in sample database makes self-learning and prototype activities easier.


Almost all of the DB2-related TechTips that I have written highlight new DB2 for i functions and features. While it's good to raise awareness of new DB2 capabilities, this does result in existing DB2 features being overlooked. This is especially true of the more ordinary database functions.


Last week, one of those often-overlooked DB2 functions came up during a customer workgroup that discussed how to improve the IBM i application development experience. One client made the point that other databases include a sample database that's always available to use when you're playing around with a new programming language or testing out new SQL features.


While DB2 for i doesn't create a sample database by default, a system stored procedure is available that makes it simple to create a sample database. The stored procedure name is CREATE_SQL_SAMPLE and is shipped in the QSYS library. The procedure creates and populates a group of tables that houses information that describes employees, departments, projects, and activities.


These objects in the sample database are also used by the examples in the DB2 for i SQL Reference and Programming guides. Thus, it's simple for you to copy and paste the SQL examples from the documentation and run them on your system. Running and then modifying these examples is a great method to better understand a new or existing SQL feature.


CREATE_SQL_SAMPLE is a stored procedure, so you need to use the SQL CALL statement to invoke it from your favorite SQL interface. The procedure requires a single input parameter, which is the name of the schema that you want created to house the sample database objects. Because a new schema is created, the stored procedure will fail if you supply the name of an existing schema or library. It's also best to supply an uppercase name since DB2 is going to make the schema name uppercase anyway.


The following SQL statement creates a schema named KMSAMPLE and creates the SQL objects associated with the sample database in the newly created schema.




Expect the sample database to be created and populated on most systems within a couple of minutes. Also, don't worry about disk storage requirement because the sample database consumes only about 120 KB of storage.


If your memory is getting less reliable as the years pass (like mine), then it's helpful to have other techniques to remember the name of this system stored procedure. I rely on the System i Navigator Run SQL Scripts utility as my memory aid.


I start the process of finding the stored procedure name by selecting the "Insert from Examples" task on the Edit pull-down menu as shown in Figure 1.


111414MilliganSample Fig1

Figure 1: Insert your example.


That task launches the SQL Statement Examples window displayed in Figure 2. On this window, just enter CALL into the "Search For" input field, which will highlight a CALL statement with an example invocation of the CREATE_SQL_SAMPLE stored procedure. If you select the Insert button, the example statement will be copied into your Run SQL Scripts window so that all you have to do is type in your schema name and execute the procedure.


111414MilliganSample Fig2

Figure 2: This is the SQL Statement Examples window.


If you're looking for a tool to help you quickly understand the database objects created by the system stored procedure, then don't forget about the graphical modeling support available with the IBM Data Studio tool that can be downloaded for free.


If you're interested in playing around with the integrated XML support delivered in the DB2 for i 7.1 release, then use the companion CREATE_XML_SAMPLE stored procedure to create sample database tables that contain XML data.


The ability to create a sample database on DB2 for i isn't the newest or sexiest feature, but I think there any many situations in which developers can improve their productivity by using the DB2 sample database instead of taking time to create and populate their own database objects.

Kent Milligan
Kent Milligan is a Senior Db2 for i Consultant in the IBM Lab Services Power Systems Delivery Practice.  Kent has over 25 years of experience as a Db2 for IBM i consultant and developer working out of the IBM Rochester lab. Prior to re-joining the DB2 for i Lab Services practice in 2020, Kent spent 5 years working on healthcare solutions powered by IBM Watson technologies. Kent is a sought-after speaker and author on Db2 for i & SQL topics.


Support MC Press Online

$0.00 Raised:

Book Reviews

Resource Center

  • SB Profound WC 5536 Have you been wondering about Node.js? Our free Node.js Webinar Series takes you from total beginner to creating a fully-functional IBM i Node.js business application. You can find Part 1 here. In Part 2 of our free Node.js Webinar Series, Brian May teaches you the different tooling options available for writing code, debugging, and using Git for version control. Brian will briefly discuss the different tools available, and demonstrate his preferred setup for Node development on IBM i or any platform. Attend this webinar to learn:

  • SB Profound WP 5539More than ever, there is a demand for IT to deliver innovation. Your IBM i has been an essential part of your business operations for years. However, your organization may struggle to maintain the current system and implement new projects. The thousands of customers we've worked with and surveyed state that expectations regarding the digital footprint and vision of the company are not aligned with the current IT environment.

  • SB HelpSystems ROBOT Generic IBM announced the E1080 servers using the latest Power10 processor in September 2021. The most powerful processor from IBM to date, Power10 is designed to handle the demands of doing business in today’s high-tech atmosphere, including running cloud applications, supporting big data, and managing AI workloads. But what does Power10 mean for your data center? In this recorded webinar, IBMers Dan Sundt and Dylan Boday join IBM Power Champion Tom Huntington for a discussion on why Power10 technology is the right strategic investment if you run IBM i, AIX, or Linux. In this action-packed hour, Tom will share trends from the IBM i and AIX user communities while Dan and Dylan dive into the tech specs for key hardware, including:

  • Magic MarkTRY the one package that solves all your document design and printing challenges on all your platforms. Produce bar code labels, electronic forms, ad hoc reports, and RFID tags – without programming! MarkMagic is the only document design and print solution that combines report writing, WYSIWYG label and forms design, and conditional printing in one integrated product. Make sure your data survives when catastrophe hits. Request your trial now!  Request Now.

  • SB HelpSystems ROBOT GenericForms of ransomware has been around for over 30 years, and with more and more organizations suffering attacks each year, it continues to endure. What has made ransomware such a durable threat and what is the best way to combat it? In order to prevent ransomware, organizations must first understand how it works.

  • SB HelpSystems ROBOT GenericIT security is a top priority for businesses around the world, but most IBM i pros don’t know where to begin—and most cybersecurity experts don’t know IBM i. In this session, Robin Tatam explores the business impact of lax IBM i security, the top vulnerabilities putting IBM i at risk, and the steps you can take to protect your organization. If you’re looking to avoid unexpected downtime or corrupted data, you don’t want to miss this session.

  • SB HelpSystems ROBOT GenericCan you trust all of your users all of the time? A typical end user receives 16 malicious emails each month, but only 17 percent of these phishing campaigns are reported to IT. Once an attack is underway, most organizations won’t discover the breach until six months later. A staggering amount of damage can occur in that time. Despite these risks, 93 percent of organizations are leaving their IBM i systems vulnerable to cybercrime. In this on-demand webinar, IBM i security experts Robin Tatam and Sandi Moore will reveal:

  • FORTRA Disaster protection is vital to every business. Yet, it often consists of patched together procedures that are prone to error. From automatic backups to data encryption to media management, Robot automates the routine (yet often complex) tasks of iSeries backup and recovery, saving you time and money and making the process safer and more reliable. Automate your backups with the Robot Backup and Recovery Solution. Key features include:

  • FORTRAManaging messages on your IBM i can be more than a full-time job if you have to do it manually. Messages need a response and resources must be monitored—often over multiple systems and across platforms. How can you be sure you won’t miss important system events? Automate your message center with the Robot Message Management Solution. Key features include:

  • FORTRAThe thought of printing, distributing, and storing iSeries reports manually may reduce you to tears. Paper and labor costs associated with report generation can spiral out of control. Mountains of paper threaten to swamp your files. Robot automates report bursting, distribution, bundling, and archiving, and offers secure, selective online report viewing. Manage your reports with the Robot Report Management Solution. Key features include:

  • FORTRAFor over 30 years, Robot has been a leader in systems management for IBM i. With batch job creation and scheduling at its core, the Robot Job Scheduling Solution reduces the opportunity for human error and helps you maintain service levels, automating even the biggest, most complex runbooks. Manage your job schedule with the Robot Job Scheduling Solution. Key features include:

  • LANSA Business users want new applications now. Market and regulatory pressures require faster application updates and delivery into production. Your IBM i developers may be approaching retirement, and you see no sure way to fill their positions with experienced developers. In addition, you may be caught between maintaining your existing applications and the uncertainty of moving to something new.

  • LANSAWhen it comes to creating your business applications, there are hundreds of coding platforms and programming languages to choose from. These options range from very complex traditional programming languages to Low-Code platforms where sometimes no traditional coding experience is needed. Download our whitepaper, The Power of Writing Code in a Low-Code Solution, and:

  • LANSASupply Chain is becoming increasingly complex and unpredictable. From raw materials for manufacturing to food supply chains, the journey from source to production to delivery to consumers is marred with inefficiencies, manual processes, shortages, recalls, counterfeits, and scandals. In this webinar, we discuss how:

  • The MC Resource Centers bring you the widest selection of white papers, trial software, and on-demand webcasts for you to choose from. >> Review the list of White Papers, Trial Software or On-Demand Webcast at the MC Press Resource Center. >> Add the items to yru Cart and complet he checkout process and submit

  • Profound Logic Have you been wondering about Node.js? Our free Node.js Webinar Series takes you from total beginner to creating a fully-functional IBM i Node.js business application.

  • SB Profound WC 5536Join us for this hour-long webcast that will explore:

  • Fortra IT managers hoping to find new IBM i talent are discovering that the pool of experienced RPG programmers and operators or administrators with intimate knowledge of the operating system and the applications that run on it is small. This begs the question: How will you manage the platform that supports such a big part of your business? This guide offers strategies and software suggestions to help you plan IT staffing and resources and smooth the transition after your AS/400 talent retires. Read on to learn: