progress 4gl session variables

I know that PSC feels it necessary to "comfort" people who are used to procedural code that it is still a valid paradigm, but that doesn't mean that every verb or modifier needs to be called good. Assign moves the data from screen buffer to record buffer. It's a nice check off on the marketing side though. 3. A shared variable defined in parent program can be used in all its sub programs but the vice versa is not possible. To learn more, see our tips on writing great answers. . I tried to RUN it from Unix (ksh shell), but received a message ksh: run: not found. I don't think it's reasonable to expect a developer to read the entire handbook when they're looking for information on one language element. Used for performing additional or independent processing when the even occurs. If there existed a SQL function that would return a special session ID that corresponded to the client's transient connection to the SQL engine, it would be possible to have the client and trigger/stored procedure communicate using a pre-determined table as a request queue (by using the session ID as a key). Identifies the process that follows each keystroke during a PROMPT-FOR, SET, or UPDATE statement. Can we run an internal procedure with the persistent option? You can specify "-T c:\temp" in a .pf but not "-T %TEMP%". QUERY-OFF-END Function - Returns a logical value indicating whether the specified query is positioned at the end of its result list (either before the first record or after the last record). When you write a record to the database, Progress gets that record from the record buffer. The calling procedures temp table and the called procedures temp table need not have matching indexes. "Don't want" means: I know the another way of doing it. And so is using include files in lieu of .p's and super procedures. enough to be a dinosaur, but I guess age isn't everything. I imagine if your code is previous to v8, you might be out of luck. 4. [ PRIVATE | PROTECTED | PUBLIC ] VARIABLE variable-name. You must log in or register to reply here. Any statements defined before the proper compilation block is called as the preprocessor statements. BEGINS uses an index wherever possible. Is it necessary to use a READKEY Statement in the EDITING Phrase? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Returns an integer giving the position of an expression in a list. Is there a generic term for these trajectories? folks out there who think they are perfectly OK after all, it is a "traditional Progress programming. The length (extent) can be set in run-time. I know I didn't read the entire book, and I have no intention of doing so since I was only looking for specific material I need to figure out. If one variable is defined LIKE another that is NO-UNDO, the second variable NO-UNDO only if you specify NO-UNDO in the definition of that second variable. Procedure is the largest Progress unit of execution, consisting of one or more Progress source or r-code statements in a single, outer block. It's not them. is there such a thing as "right to be heard"? There should be a number of different examples showing different ways to, accomplish a given goal, with a description of each one's strengths and. Progress, Telerik, Ipswitch and certain product names used herein are trademarks or registered trademarks of Progress Software Corporation and/or one of its subsidiaries or affiliates in the U.S. and/or other countries. That states that no undo handling is wanted for this specific variable in case of a transactional roll-back. */ /* Strings. And the best way to do that is to (a) make it easy for them to do so in the language, and (b) update the docs to point them in that direction. ANS:- 1.Lookup Function - Returns an integer giving the position of an expression in a list. That does not make it a virtue to guide people toward usage which we now recognize as undesireable. Ans: Use these for multiple deliveries of stock items, where an ongoing relationship with the supplier is assumed, but exact delivery dates are yet to be determined. If some nags were to (finally) be inserted in OE10 we might begin to see some general recognition that, oh say shared variables, are a bad idea by the time version 13 rolls out. A few personal snips here and few loose words there can not only degenerate the discussion but it can discourage others from joining in and offering their thoughts and we would like to hear from everybody in the community. I think that nag messages are a long overdue idea and I hope to see some soon. Progress Documentation As it stands there is no incentive for anyone to change bad habits -- and there are plenty of bad habits that need changing. The called procedure must name the same variable in a DEFINE SHARED VARIABLE statement. Unfortunately, according to the documentation there is no such session ID. The scope remains only until the RUN statement that executes it completes. Why are they still being discussed in any way other than for historical reference? As such, I felt it had to be reasonably inclusive. DEFINE VARIABLE chand AS CHARACTER NO-UNDO. The problem is, as long as we do support something, we want to support it consistently. DEFINE VARIABLE i AS INT64 INITIAL -200 NO-UNDO. How you will release a table when using Exclusive locks to use by another table? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Different common include files and its use? So maybe we should be documenting "worst practices". INPUT PARAMETER - Defines a parameter that gets its value from one of the following sources: If the calling procedure runs the current (called) procedure synchronously, the value comes from the corresponding INPUT parameter of the RUN statement. It's a lot of work. It is easy to be dismissive but it would be more useful to be clear about what exceptions or qualifications you are making. ProLint is wonderful but it covers a different set of problems. What is one circumstance where a shared variable, is superior to a parameter other than in a version of Progress. If you need more than one record at a time from a table, you can use the DEFINE BUFFER statement to define additional buffers for that table. Supplier schedules specify dates and even hours of delivery for the near term, and inform MRP and the supplier about long-term plans. Function will return single value to the caller. What is preprocessor directive? 565), Improving the copy in the close modal and post notices - 2023 edition, New blog post from our CEO Prashanth: Community is the future of AI. Progress automatically puts a SHARE-LOCK on a record when it is read and automatically puts an EXCLUSIVE-LOCK on a record when it is updated. Which was the first Sci-Fi story to predict obnoxious "robo calls"? What is normalization? Your observations regarding the ABL documentation, the examples therein, best practices using the ABL, new ABL features vs. older 4GL practices, etc, will definitely be looked at by the relevant PSC people. Although I suspect that if I cared more I might find that OO might be better when writing complex GUIs. This, to me, is one of the very interesting challenges facing PSC. You don't "access" a .pf. SESSION system handle All Products Current publication X Content Loading. /* These variables are declared with `NO-UNDO`. Which I think includes guidance on how to use .cls in the context of a .p application, which is why I did the whitepaper and code example on how to use a .cls file to replace a session superprocedure which is found at http://www.cintegrity.com/downloads.html the doc is full of references about how SPs are like objects, but is missing this piece on how to actually do it. . It's not reasonable to expect current developers to read all of a reference book's contents every time a new version comes out or they're looking for help with one particular language element. Stackoverflow tagged OpenEdge or Progress-4GL/DB, Occasionally encounter error 5890 and 5884 with excel com-object, [Stackoverflow] [Progress OpenEdge ABL] Sometimes having error with CSV output file from 4GL program, [Stackoverflow] [Progress OpenEdge ABL] How to use the OpenEdge debugger (OpenEdge Debugger 11.6). SYNTAX:- R-INDEX ( source , target [ , starting ] ). For first can use multiple indexes and Find cab use only one index. I can imagine a file extension that doesn't allow GUI-statements other than tracing. I'd still like to write REPEAT: PROMPT-FOR, script like programs if I wanted to. If an error is encountered during the execution of the loop, it will help to come out of the loop by setting Batchrun parameter to Yes. You can use the ACCUMULATE statement only in blocks with the implicit looping property. There is no such feature and no viable workarounds. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Progress 4GL - Define variable month/year, How a top-ranked engineering school reimagined CS curriculum (Ep. 5. If you do not specify the UNDO option, then the current transaction is committed when the QUIT statement is executed. We could refer to it as the keywordtrytoforget list. I'm not dealing with other languages though, I'm dealing with the ABL & it's documentation, which keeps touting shared variables as a possible solution to different problems. progress-4gl Tutorial => Basic variable declarations with public data members! We have ProLint for telling us things like the use of deprecated features. Making statements based on opinion; back them up with references or personal experience. Theoretical Design/Maintainability/etc. A query can involve one or more tables and can consist related records from FOR EACH Statement. u can check this by using the ETIME() Function to check the time taken by these two. Ans:- Argument:- U can pass the argument at compile time. Which may be fine if that was carried over to the rest of the book. It is depending on the logic build in the include file. Indicates that the specified block is undone. Find centralized, trusted content and collaborate around the technologies you use most. MIP Model with relaxed integer constraints takes longer to solve than normal model, why? I've an old desktop application developed in progress 4gl.There is a frame contained in a progress window now my task is to make the frame responsive ie based on the size of its container window the frame should resize dynamically.Is it possible in Progress any workaround will be appreciated.Thanks. Shared variables had their uses when procedures didn't allow for passing parameters. Include files have an .i extension. Ans:- Transaction is a set code which completely done the program or completely undone the program. Find centralized, trusted content and collaborate around the technologies you use most.

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