02
Sat, Nov
2 New Articles
  1. You are here:  
  2. Home
  3. Analytics & Cognitive
  4. DB2
  5. Understanding DB2 Object Privileges, Part 3

Understanding DB2 Object Privileges, Part 3

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

 

 

In the final installment of this three-part series, learn about DB2's system, server, nickname, and variable privileges plus several more.

 

 

 

Editor's note: This article is an excerpt from the book DB2 10.1 Fundamentals: Certification Study Guide

 

In DB2 for Linux, UNIX, and Windows and DB2 for z/OS, object privileges convey the right to perform certain actions against specific database objects. Part 1 of this series reviewed DB2's authorization ID, buffer pool, table space, storage group, schema, table, view, and index privileges. Part 2 of this series reviewed DB2's sequence, distinct type, function, procedure, routine, collection, package, and plan privileges. In this article, we conclude our discussion of DB2 object privileges by examining the remaining privileges available to control user interactions with DB2 objects.

The JAR File Privilege (DB2 for z/OS Only)

The JAR privilege controls what users can and cannot do with a particular JAR file. (A JAR file is a file that contains a collection of classes for a Java routine.) Only one JAR privilege exists—the USAGE privilege, which, when granted, allows a user to use a certain JAR file.

System Privileges (DB2 for z/OS Only)

System privileges control what users can and cannot do with a DB2 system. The following system privileges are available:

  • ARCHIVE: Allows a user to archive the current active log, provide information about input archive logs, modify the checkpoint frequency specified during installation, and control allocation and deallocation of tape units for archive processing.
  • BINDADD: Allows a user to create new plans and packages.
  • BINDAGENT: Allows a user to bind, rebind, or free a plan or package as well as copy a package on behalf of the grantor. (The BINDAGENT privilege is intended for separation of function, not for added security.)
  • BSDS: Allows a user to recover the bootstrap data set (by executing the RECOVER BSDS command).
  • CREATEALIAS: Allows a user to create an alias for a table or view.
  • CREATEDBA: Allows a user to create a new database and have DBADM authority over it.
  • CREATEDBC: Allows a user to create a new database and have DBCTRL authority over it.
  • CREATESG: Allows a user to create a storage group.
  • CREATE_SECURE_OBJECT: Allows a user to create secure objects, such as secure triggers or secure UDFs. (If a trigger is defined for tables that are enforced with row or column access control, it must be secure. Similarly, if a UDF is referenced in the definition of a row permission or column mask, it must be secure. In addition, if a UDF is invoked in a query and its arguments reference columns with column masks, the UDF must be secure.)
  • CREATETMTAB: Allows a user to define a created temporary table.
  • DEBUGSESSION: Allows a user to control debug session activity for SQL stored procedures, Java stored procedures, and non-inline SQL functions.
  • DISPLAY: Allows a user to display system information using the DISPLAY ARCHIVE, DISPLAY BUFFERPOOL, DISPLAY DATABASE, DISPLAY LOCATION, DISPLAY LOG, DISPLAY THREAD, and DISPLAY TRACE commands.
  • EXPLAIN: Allows a user to generate Explain query plans.
  • MONITOR1: Allows a user to receive trace data that is not potentially sensitive.
  • MONITOR2: Allows a user to receive all trace data.
  • RECOVER: Allows a user to recover threads (by executing the RECOVER INDOUBT command).
  • STOPALL: Allows a user to stop DB2.
  • STOSPACE: Allows a user to obtain data about storage space usage.
  • TRACE: Allows a user to control tracing using the START TRACE, STOP TRACE, and MODIFY TRACE commands.

The Server Privilege (DB2 for Linux, UNIX, and Windows Only)

The server privilege controls whether a user can work with a particular federated server data source. (A DB2 federated system is a distributed computing system that consists of a DB2 server, known as a federated server, and one or more data sources the federated server sends queries to. Each data source consists of an instance of some supported relational database management system—such as Oracle—plus the database or databases that the instance supports.) Only one server privilege exists—the PASSTHRU privilege, which, when granted, allows a user to issue DDL and DML SQL statements (as pass-through operations) directly to a data source via a federated database server.

Nickname Privileges (DB2 for Linux, UNIX, and Windows Only)

Nickname privileges control what users can and cannot do with a particular nickname. (When a client application submits a distributed request to a federated database server, the request is forwarded to the appropriate data source for processing. However, such a request does not identify the data source itself; instead, it references tables and views within the data source by using nicknames that map to specific table and view names in the data source. Nicknames are not alternative names for tables and views in the same way that aliases are; instead, they are pointers that a federated server uses to reference external objects.) The following nickname privileges are available:

  • CONTROL: Provides a user with all nickname privileges available. With this privilege, a user can remove (drop) a certain nickname from the database as well as grant and revoke individual nickname privileges (with the exception of the CONTROL privilege) to/from others. (This privilege is available with DB2 for Linux, UNIX, and Windows only.)
  • ALTER: Allows a user to add, reset, or drop a column option for a certain nickname. It also lets a user change a nickname's column name or data type, as well as modify the comment associated with the nickname.
  • SELECT: Allows a user to retrieve data from the table or view within a federated data source that a certain nickname refers to.
  • INSERT: Allows a user to insert data into the table or view within a federated data source that a certain nickname refers to.
  • UPDATE: Allows a user to modify data in the table or view within a federated data source that a certain nickname refers to. (This privilege can be granted for the entire table or limited to specific columns within the table.)
  • DELETE: Allows a user to remove rows of data from the table or view within a federated data source that a certain nickname refers to.
  • INDEX: Allows a user to create an index specification for a certain nickname.
  • REFERENCES: Allows a user to create and drop foreign key constraints that reference a certain nickname in a referential integrity constraint.

Variable Privileges (DB2 for Linux, UNIX, and Windows Only)

Variable privileges control what users can and cannot do with a particular global variable. (A global variable is a named memory variable that can be retrieved or modified using SQL statements; global variables enable applications to share relational data among SQL statements, without the need for additional application logic to support such data transfers.) The following variable privileges are available:

  • READ: Allows a user to read the value of a certain global variable.
  • WRITE: Allows a user to assign a value to a certain global variable.

The XML Schema Repository (XSR) Object Privilege (DB2 for Linux, UNIX, and Windows Only)

The XML schema repository (XSR) object privilege controls what users can and cannot do with a particular XSR object. (XSR objects are used to validate and process XML instance documents that are stored in an XML column.) Only one XSR object privilege exists—the USAGE privilege, which, when granted, allows a user to use a certain XSR object.

The Workload Privilege (DB2 for Linux, UNIX, and Windows Only)

The workload privilege controls what users can and cannot do with a particular workload. (Workloads are a key part of a DB2 workload management solution; workloads are used to identify a source of work.) Only one workload privilege exists—the USAGE privilege, which, when granted, allows a user to use a certain defined workload.

 

Note: Users with ACCESSCTRL, DATAACCESS, DBADM, SECADM, or WLMADM authority are implicitly granted the USAGE privilege on all available workloads.

 

Roger Sanders

Roger E. Sanders is a Principal Sales Enablement & Skills Content Specialist at IBM. He has worked with Db2 (formerly DB2 for Linux, UNIX, and Windows) since it was first introduced on the IBM PC (1991) and is the author of 26 books on relational database technology (25 on Db2; one on ODBC). For 10 years he authored the “Distributed DBA” column in IBM Data Magazine, and he has written articles for publications like Certification Magazine, Database Trends and Applications, and IDUG Solutions Journal (the official magazine of the International Db2 User's Group), as well as tutorials and articles for IBM's developerWorks website. In 2019, he edited the manuscript and prepared illustrations for the book “Artificial Intelligence, Evolution and Revolution” by Steven Astorino, Mark Simmonds, and Dr. Jean-Francois Puget.

From 2008 to 2015, Roger was recognized as an IBM Champion for his contributions to the IBM Data Management community; in 2012 he was recognized as an IBM developerWorks Master Author, Level 2 (for his contributions to the IBM developerWorks community); and, in 2021 he was recognized as an IBM Redbooks Platinum Author. He lives in Fuquay Varina, North Carolina.

MC Press books written by Roger E. Sanders available now on the MC Press Bookstore.

QuickStart Guide to Db2 Development with Python QuickStart Guide to Db2 Development with Python
Discover how Python, SQL, and Db2 can successfully be used with each other.
List Price $9.95

Now On Sale

DB2 10.5 Fundamentals for LUW (Exam 615) DB2 10.5 Fundamentals for LUW (Exam 615)
Don't even think about attempting to take the DB2 Fundamentals exam without this indispensable study guide.
List Price $79.95

Now On Sale
DB2 10.1 Fundamentals (Exam 610) DB2 10.1 Fundamentals (Exam 610)
Let one of the world's leading DB2 authors and a participant in the exam development help you succeed.
List Price $79.95

Now On Sale

Artificial Intelligence: Evolution and Revolution Artificial Intelligence: Evolution and Revolution
Operational AI has become available to the masses, setting the wheels in motion for a worldwide AI revolution that has never been seen before.
List Price $16.95

Now On Sale
DB2 10.5 DBA for LUW Upgrade from DB2 10.1: Certification Study Notes DB2 10.5 DBA for LUW Upgrade from DB2 10.1: Certification Study Notes
Here's everything you need to know to take and pass Exam 311, complete with a practice exam and study key.
List Price $21.95

Now On Sale

From Idea to Print From Idea to Print
Here's everything you need to know to turn your technical knowledge and expertise into a published article or book.
List Price $49.95

Now On Sale
DB2 9 Fundamentals (Exam 730) DB2 9 Fundamentals (Exam 730)
Use this review before taking the test to prove you've mastered the basics of DB2 9.
List Price $59.95

Now On Sale

DB2 9 for Linux, UNIX, and Windows Database Administration (Exam 731) DB2 9 for Linux, UNIX, and Windows Database Administration (Exam 731)
Use this indispensable study guide to prepare to take, and pass, Exam 731.
List Price $64.95

Now On Sale
DB2 9.7 for Linux, UNIX, and Windows Database Administration (Exam 541) DB2 9.7 for Linux, UNIX, and Windows Database Administration (Exam 541)
Get ready to take the DB2 9.7 certification exam with this handy study guide.
List Price $21.95

Now On Sale

DB2 9 for Linux, UNIX, and Windows Advanced Database Administration (Exam 734) DB2 9 for Linux, UNIX, and Windows Advanced Database Administration (Exam 734)
Review all exam topics and take the included practice test to be sure you're ready on testing day.
List Price $64.95

Now On Sale
DB2 9 for Linux, UNIX, and Windows Database Administration Upgrade (Exam 736) DB2 9 for Linux, UNIX, and Windows Database Administration Upgrade (Exam 736)
Prep for success with the master of DB2 certification study guides!
List Price $34.95

Now On Sale

Data Fabric: An Intelligent Data Architecture for AI Data Fabric: An Intelligent Data Architecture for AI
This book explains the concepts and values that a data fabric approach can deliver to both technical and business communities.
List Price $19.95

Now On Sale
BLOG COMMENTS POWERED BY DISQUS

LATEST COMMENTS

Support MC Press Online

$

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: