Welcome to the IBM Rational PL/I community. Here you will find the latest technical and business information, and educational information about PL/I and related z/OS and AIX topics including IMS, CICS, and Rational Developer for System z.
Check out all the information about the latest release of Enterprise PL/I for z/OS. You can
get a summary of the release as well as all the announcement details.
See what's new with Enterprise PL/I for z/OS, V4.2 including enhancements to leverage the latest z/OS. For all the details about the Enterprise PL/I for z/OS, V4.2 announcement, see I BM Enterprise PL/I for z/OS V4.2 delivers performance improvements and usability enhancements.
Check out all the information about the latest release of PL/I for AIX. You can get a summary of the release as well as all the announcement details. See what's new with PL/I for AIX V3.1 including enhancements to leverage the latest POWER7 hardware and interoperability with the latest middleware. For all the details about the PL/I for AIX, V3.1 announcement, see IBM PL/I for AIX , V3.1 delivers support for the latest IBM POWER7 Systems architecture as well as many functional improvements and usability enhancements .
Check out all
the information about the latest release of Enterprise PL/I for z/OS.
You can get a summary of the release as well as all the announcement
details. See what's new with Enterprise PL/I for z/OS, V4.3 including enhancements to
leverage the latest z/OS. For all the details about the Enterprise
PL/I for z/OS, V4.3 announcement, see IBM Enterprise PL/I for z/OS V4.3 delivers performance improvements and usability enhancements . ... [More]
At times, it is useful to be able to tailor the compiler to meet the needs of your organization. For example, you might want to suppress certain messages or alter the severity of others. You might want to perform a specific function with each compilation, such as logging statistical information about the compilation into a file.
A compiler user exit handles this type of functions. With PL/I, you can write your own user exit or use the exit provided with the product, either 'as is' or slightly modified depending on what you want to... [More]
The history of PL/I stretches back to the 1970s when IBM, at the prompting of the SHARE user group, delivered the first PL/I compiler so that users would have a language with the combined strengths of Fortran and COBOL. IBM then delivered three releases of OS PL/I Version 2 in the 1980s and PL/I for MVS and VM in the early 1990s. All of these releases were based on a common code base that gradually became old, plus both hard and expensive to enhance and maintain.
However, with the advent of the PC, IBM built a... [More]
FREE newsletter - get IBM Software news, special #PowerSystems features - subscribe: http ://b it.l y/rs 1rZn #POWER7 We just published a special Power Systems Edition of the newsletter, which you can see here - http ://w ww-1 48.i bm.c om/t ela/ webm ail/ NlDy nami cPag e/95 40/3 2113 /cos meti c?we b_pa ge_i d=54 6427 & pre=0 - and we're also including Power Systems-related content in each monthly issue.
This blog entry is the first of two articles that will provide some guidance on how to work
with DB2 large objects (LOBs) in PL/I. They both refer to the 'pliclob.pli' file in the PL/I Cafe 'Files'
section for samples of actual code.
One way to use LOB data from a DB2 table is to declare a host variable
large enough to hold all of the LOB data. This requires your program to
allocate large amounts of storage and requires DB2 to move large amounts
of data. This can be inefficient or impractical.
Want to experience PL/I for AIX, productive and powerful development environment for building PL/I applications. Check out these features in PL/I for AIX, V3.1: Provides improved performance via both front-end changes and back-end optimizer enhancements Provides an improved debugger that enables you to conveniently debug programs form your windows-based workstation Improves the MACRO preprocessor Provides improved support for SQL and CICS Leverages productivity with new and improved built-in functions Increases quality control with new and... [More]
There are three, perhaps overlooked, new features of Enterprise that let you "compile out" code either
unconditionally or conditionally:
To cause the compiler to skip some code unconditionally, you could try to enclose it in comments. But this works
only if that code itself contains no comments. However, as of the 3.9 release, you can enclose code
in %DO SKIP; ... %END; , and then the compiler will unconditionally skip over the enclosed code.
To cause the compiler to... [More]
Under the old OS PL/I and PL/I for MVS compilers, all extents (i.e. bounds and string lengths) for STATIC variables
and for BASED variables (not using REFER) had to be optionally signed integers. This made it hard to parameterize your
code (unless you used the macro preprocessor and then your listing would look much different than your source).
With Enterprise PL/I however, extents are required only to be what are known as "restricted expressions", i.e. expressions
that the compiler can reduce to a... [More]
Do you want to prove the depth of your PL/I knowledge to a prospective employer? Or do you
want to verify the PL/I skills of a company to whom you might outsource your PL/I code?
The PL/I certification , developed jointly by IBM and representatives from PL/I
companies from Europe and the US, can help with these and similar tasks.
IBM PL/I professional certification
site you will find that there are two certification levels for PL/I: one for the general PL/I... [More]
There are many good things about the new PLI for AIX 3.1 release, but the biggest is that
PL/I for AIX is now fully up-to-date: it had been stuck at its last release in 2004, but
it now has all the language features added to Enterprise PL/I (and PL/I for Windows) in the
years since then.
Recent blog entries point to documents with all the details of what's in the 3.1 release,
but in brief, PL/I for AIX, Enterprise PL/I, and PL/I for Windows
support the same compiler options
Webcast Join our experts, Ray Jones, Vice President, IBM System z® Software, and Kevin Stoodley, IBM Fellow and CTO for Enterprise Modernization Tools, Compilers and Security, to learn how IBM’s latest compilers, middleware and tools can help you stay on the technology curve. In this complimentary webcast, Ray and Kevin will discuss best practices and approaches to plan and execute a successful compiler migration, alongside CICS®, IMS™ and DB2® upgrades. They will also go over IBM’s strategy for compilers and tools on System z to help you... [More]
PL/I Compilers are now live on the Request for Enhancement (RFE)
Community. It is a great place where you can collaborate with
development teams and other product users. Our development team will
review your RFE and provide status updates throughout its lifecycle. Here is links to the Community : PL/I RFE
Looking forward to hearing from you.