First, I would not use windows 7 at all. I would move to windows 10 Second here are some potential ares of concern that you will need to deal with
1. Are there any sub-tables. If so I would recommend creating new tables and moving data in v 15 2. There are probably obsolete pictures in the db. You can use JPRs component in 16 (32 bit mode) 3. I would also not use the built in primary key stuff, but would add a UUID to each table and table that the primary key. I have previously posted code I have used to create these. You need to create these with an empty data file. When you open an existing data file, all of these keys should be populated automatically. If not I have code that will check and make sure that all records have UUIDs. 4. I would also run tools on structure air each in 12 and then at each step up to a newer version Others may tell you that you can use an existing unique key in a table for this. I would not, as these are used only for journaling. I would not want to make a UUID key on a one table that was used in a many table as the link. I would keep all my other long ints for that. Regards Chuck ------------------------------------------------------------------------------------------------ Chuck Miller Voice: (617) 739-0306 Informed Solutions, Inc. Fax: (617) 232-1064 mailto:cjmiller<AT SIGN>informed-solutions.com Brookline, MA 02446 USA Registered 4D Developer Providers of 4D and Sybase connectivity http://www.informed-solutions.com ------------------------------------------------------------------------------------------------ This message and any attached documents contain information which may be confidential, subject to privilege or exempt from disclosure under applicable law. These materials are intended only for the use of the intended recipient. If you are not the intended recipient of this transmission, you are hereby notified that any distribution, disclosure, printing, copying, storage, modification or the taking of any action in reliance upon this transmission is strictly prohibited. Delivery of this message to any person other than the intended recipient shall not compromise or waive such confidentiality, privilege or exemption from disclosure as to this communication. > On Apr 24, 2020, at 5:16 PM, Kenneth Geiger via 4D_Tech > <4d_tech@lists.4d.com> wrote: > > Hi all, > > I’m solicitating your opinions. > > I’ve picked-up a new 4D client. They have an existing 4D system (v12 running > on Win7) that has been stagnant for quite e few years. I believe it was > originally written under 2004 or maybe even 6.8.5. They’re looking to replace > their computers with Win10 machines and and upgrade 4D. I’m a Mac guy and I > do my Win development in a VMWare environment. I’ve got several > configurations available. I’ve got a Win7 environment that has a 4D v14 > installation and a Win10 environment with 4D v15, v16, and v17 installations. > My thought is to skip v14 and open the v12 system under v15, take care of > what needs to be updated, and then move it to v17. Your thoughts would be > most appreciated. > > Stay safe and healthy, ********************************************************************** 4D Internet Users Group (4D iNUG) Archive: http://lists.4d.com/archives.html Options: https://lists.4d.com/mailman/options/4d_tech Unsub: mailto:4d_tech-unsubscr...@lists.4d.com **********************************************************************
