Build and modernize business applications using modern tools and new platforms with the Micro Focus COBOL market space products. COBOL, DB2, SQL, handling, null, indicators, Embedded SQL, Model Program. Q. What does one mean by Program Flow Control Why is it important COBOL allows programmers to write computer programs in a systematic manner. This example describes how to use a Java Server Page with JSP tags and HTML with JavaScript and Java programs to call COBOL programs for business processing and. Static and Dynamic Subroutine CALLSKeep in mind as you read this, that some compilers let you set options. Therefore, even if. CALL if you set or dont set the. This is something to beware of, because it can cause problems for you. Coding Dynamic SQL Statements. Dynamic SQL is a programming technique that enables you to build SQL statements dynamically at runtime. You can create more general. Static CALLs. In COBOL, you normally call a subroutine like this The static form of the CALL statement specifies the name of the. This is the static form of a subroutine call. The compiler. So, if you modify A and recompile it, you must also relink. A, because the each of the. NewUser Registration Member Login Recent Topics Forum Rules Forum FAQ User Profile. A.  Good Things About Static CALLs. Fewer files are needed to distribute your application because your. EXE file, or perhaps an EXE for. IBM%20ILE/chapter%2016/Figure%20179_%20T1520IC5%20%E2%80%94%20ILE%20C%20Source%20to%20Call%20COBOL%20AND%20RPG%20(Part%202%20of%202).png' alt='Dynamic Call In Cobol Program' title='Dynamic Call In Cobol Program' />DLLs for subordinate modules. This. No risk of mixingmatching different versions of your called. Bad Things About Static CALLs. You must relink all of the EXE and DLL files in your application. If your application contains DLLs that call a subroutine statically. DLL will have its own copy of the subroutine, including the. As a result, your application. If your application has multiple DLLs that use the same statically. DLL has its own copy of that subroutine and its. Therefore, if you set a value in the subroutine in one. DLLs, its local to that DLL. The copy linked to the. DLLs will not know about this. This can be either a Good. Thing or a Bad Thing, of course, but its definitely a trap for the. Dynamic CALLs. In COBOL, the dynamic form of a subroutine call is coded like this 0. SUBROUTINE A PIC X8 VALUE A. CALL SUBROUTINE A USING arguments. The dynamic form of the CALL statement specifies the name of the. The difference is that the name of the subroutine is found in the. SUBROUTINE A.   The compiled code will cause the operating. Note that you can also load a module dynamically by including it in a. DLL and then linking it using the import library for. DLL Good Things About Dynamic CALLs. You dont need to relink your application if you change something in. DLL needs to be relinked. All executables that call this subroutine will share the same DLL. Since your application only loads one. Changes in values contained within the dynamically called subroutine. DLLs that use it, because they all share the. You can free memory that a dynamically called subroutine was using. CANCELing the subroutine. This is, however, not generally of. Windows virtual memory environment, since. Windows will page out inactive data from the computers real memory. Bad Things About Dynamic CALLs. Every dynamically called subroutine must be linked as a DLL unless. DLL. Therefore, if you application consists of hundreds. DLLs. Its possible to mix versions of your DLLs. This can be a. If one of your DLLs is missing, you may not know about it until the. DLL.   At. that point, your application will terminate abnormally unless you. If you CALL a DLL, CANCEL it, then CALL it again, you incur more IO. CANCEL it.   This. Microsoft Office Blue Edition 2007 - [Activated] With Key! there. Again, in the Windows environment this is usually. Windows does an excellent job of managing memory. If you mix and match static and dynamic calls to the same. Guess how much fun it will be trying to debug. THAT mess Which is better, Static or Dynamic CALLs The answer is, it depends. Static subroutines are nice, because your application can be built. EXE file, or perhaps an EXE for your main, and a couple. DLLs for subordinate modules. Dynamic subroutines are nice because you can manage memory. DLL instead of the entire application. You really need to consider the pros and cons and how they affect your. For what its worth, though, we favor using a. Dynamic CALLs via an Import Library. Its possible to create a DLL that contains many. This is a very neat trick that uses the best.