delphi&databases, BDE 32-bit & 16-bit

BDE 32-bit & 16-bit

Author	Message
Igor V. Mashentse #1 / 5	BDE 32-bit & 16-bit Hi all! I stumbled across the following problem. I'm writting a program on delphi 5 with a use of BDE 5.11. The program inputs information into a large database at specific times. Data, however is being processed by programs written earlier on Delphi 1 (16-bit), by a third party. The problem is that when a table is launched in a 32-bit program, the 16-bit programs can not read the information from the database. More precisly, reads only the information which was in the database at the moment of launching the 32-bit program. As soon as table is closed, all of information becomes readable. Function of my program is to operate around the clock. Checking the data can be performed occasionaly (by need), however my program can not be halted, otherwise loss of data will occur. In addition, the data is being checked via network from another building. Maybe someone is familiar with a similar problem. Please reply by e-mail or in the next issue of your newsletter, if it will be available soon. Thank You in advance. With best regards, Igor V. Mashentsev Nikolaev, Ukraine
Sat, 27 Sep 2003 14:49:06 GMT

M.H. Avegaar #2 / 5	BDE 32-bit & 16-bit Have you set LOCAL SHARE to TRUE and NET DIR to the same location as the 16-bit apps ? Quote: > Hi all! > I stumbled across the following problem. > I'm writting a program on Delphi 5 with a use of BDE 5.11. > The program inputs information into a large database at specific times. > Data, however is being processed by programs written earlier on Delphi 1 > (16-bit), by a third party. > The problem is that when a table is launched in a 32-bit program, the 16-bit > programs can not read the information from the database. More precisly, > reads only the information which was in the database at the moment of > launching the 32-bit program. > As soon as table is closed, all of information becomes readable. > Function of my program is to operate around the clock. Checking the data can > be performed occasionaly (by need), however my program can not be halted, > otherwise loss of data will occur. In addition, the data is being checked > via network from another building. > Maybe someone is familiar with a similar problem. > Please reply by e-mail or in the next issue of your newsletter, if it will > be available soon. > Thank You in advance. > With best regards, Igor V. Mashentsev > Nikolaev, Ukraine
Sat, 27 Sep 2003 15:53:39 GMT

Markku Nevalaine #3 / 5	BDE 32-bit & 16-bit Quote: > The problem is that when a table is launched in a 32-bit program, the 16-bit > programs can not read the information from the database. More precisly, > reads only the information which was in the database at the moment of > launching the 32-bit program. It's all in the BDE NetFileDir -setting. All the 16 and 32 bit applications must share exactly the same record locking files, and they remain in the directory called NetFileDir. Here NetFileDir can not have long filenames, because that's too hard for 16-bit BDE to handle. Also forget all the \\MYDIRECTORY style notations everywhere, use only old style, real drive letters and directorynames like D:\MYDIR Markku Nevalainen
Sat, 27 Sep 2003 16:52:38 GMT

Sundial Services International, In #4 / 5	BDE 32-bit & 16-bit I have suspected for some time that "DbiUseIdleTime" needs to be called regularly, even by 32-bit programs, and this observation tends to strongly confirm that in my mind. Quote: > Have you set LOCAL SHARE to TRUE and NET DIR to the same location as the > 16-bit apps ? > > Hi all! > > I stumbled across the following problem. > > I'm writting a program on Delphi 5 with a use of BDE 5.11. > > The program inputs information into a large database at specific times. > > Data, however is being processed by programs written earlier on Delphi 1 > > (16-bit), by a third party. > > The problem is that when a table is launched in a 32-bit program, the > 16-bit > > programs can not read the information from the database. More precisly, > > reads only the information which was in the database at the moment of > > launching the 32-bit program. > > As soon as table is closed, all of information becomes readable. > > Function of my program is to operate around the clock. Checking the data > can > > be performed occasionaly (by need), however my program can not be halted, > > otherwise loss of data will occur. In addition, the data is being checked > > via network from another building. > > Maybe someone is familiar with a similar problem. > > Please reply by e-mail or in the next issue of your newsletter, if it will > > be available soon. > > Thank You in advance. > > With best regards, Igor V. Mashentsev > > Nikolaev, Ukraine
Sat, 27 Sep 2003 23:59:05 GMT

Markku Nevalaine #5 / 5	BDE 32-bit & 16-bit Quote: > I have suspected for some time that "DbiUseIdleTime" needs to be called > regularly, even by 32-bit programs, and this observation tends to strongly > confirm that in my mind. Borland warns to never use DbiUseIdleTime as it has no flushing effect: http://www.borland.com/devsupport/bde/bdeapiex/dbiuseidletime.html If this function it's useless, I wonder why Borland has kept it years packed in Delphi/BDE package. With BDE it's LocalShare = True that makes the whole thing! Someone suggested to use DbiSaveChanges still along with that. But without knowing the exact BDE internal design, I quess the built in LocalShare trigger always gets fired first, and before thus the DbiSaveChanges call would be late or useless anyway. Markku Nevalainen
Sun, 28 Sep 2003 01:49:44 GMT

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