With a recent V6R1 PTF, SQL stored procedures can now benefit from the improved performance offered by IBM i service program objects.
The usage of SQL stored procedures by IBM i applications and programs continues to rise. For quite awhile, applications have had the ability to leverage the performance benefits offered by IBM i service program objects.
With a recent V6R1 PTF, SQL stored procedures can now benefit from the improved performance offered by IBM i service program objects. When an SQL stored procedure is created, DB2 for i generates and creates an ILE C program object to implement the business logic specified by the programmer. For example, when the following procedure is created, it will result in DB2 generating an ILE C program object (*PGM) named ADD_PGM in the QGPL library. Whenever an application invokes the ADD_PGM, DB2 will transparently call the generated C program object.
CREATE PROCEDURE QGPL/ADD_PGM (IN p1 INT, IN n INT, OUT o1 INT)
LANGUAGE SQL
BEGIN
DECLARE v1 INT;
SET v1=ABSVAL(n);
SET o1= p1+v1;
END;
With the V6R1 Database Group PTF #5 released in July 2008, programmers can now have DB2 generate ILE C service program objects instead. This capability is controlled with the new PROGRAM TYPE clause as shown in the following example. The PROGRAM TYPE SUB clause causes DB2 to generate an ILE C service program object (*SRVPGM) named ADD_SRVPGM in the QGPL library. If this clause is not specified, the default value is PROGRAM TYPE MAIN, which results in DB2 generating an ILE C program object.
CREATE PROCEDURE QGPL/ADD_SRVPGM (IN p1 INT, IN n INT, OUT o1 INT)
LANGUAGE SQL
PROGRAM TYPE SUB
BEGIN
DECLARE v1 INT;
SET v1=ABSVAL(n);
SET o1= p1+v1;
END;
The usage of a service program object will provide a small performance boost when the SQL stored procedure is called. No changes are needed to the applications that invoke the SQL stored procedure. The SQL stored procedure just needs to be re-created after the PROGRAM TYPE SUB clause is added.
You can find more information on the CREATE PROCEDURE statement syntax in the DB2 for i SQL Reference.
More 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.
TRY 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.
Forms 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.
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:
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.
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:
LATEST COMMENTS
MC Press Online