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Re: FW_OpenAdoConnection reconnect

... be re-established, the possible reasons can be loss of internet connection, or physical network issues. This indicates the need for the user to physically remedy the situation and retry the operaration.
by nageswaragunupudi
Thu Dec 14, 2023 3:57 am
 
Forum: FiveWin for Harbour/xHarbour
Topic: FW_OpenAdoConnection reconnect
Replies: 6
Views: 490

Re: DBF . Commit

nageswaragunupudi wrote:So, let is be clear on this:
1. COMMIT is safe and ensures all data is physically written the disk. But not necessary to make the changes visible to other users.
2. UNLOCK is all that is enough to make the changes visible to users across the network.

Hope Mr. Enrico agrees on this.


Yes, I agree.
by Enrico Maria Giordano
Mon Oct 23, 2023 7:34 am
 
Forum: FiveWin for Harbour/xHarbour
Topic: DBF . Commit
Replies: 39
Views: 2209

Re: DBF . Commit

... Just for information to all: COMMIT executes the WinAPI function FlushFileBuffers( handle ) thereby ensuring that all the data in the buffers are physically written to the disk. This is executed for dbf, fpt/dbt and all cdx/ntx/idx file handles. This API function also updates the files' timestamps. ...
by nageswaragunupudi
Mon Oct 23, 2023 4:25 am
 
Forum: FiveWin for Harbour/xHarbour
Topic: DBF . Commit
Replies: 39
Views: 2209

Re: DBF . Commit

... the data to the disk using fwrite (or similar function). Harbour can write only to the file buffer of Windows OS, but can not force the OS to physically write to the disk. All that is handled by the Windows OS and we can trust the Windows OS to flush its own buffers to the physical disk safely ...
by nageswaragunupudi
Sun Oct 22, 2023 2:53 pm
 
Forum: FiveWin for Harbour/xHarbour
Topic: DBF . Commit
Replies: 39
Views: 2209

Re: DBF . Commit

... "commit". In any case, (x)Harbour can flush its buffers to the OS buffers and but I doubt if (x)Harbour has an control over when the OS physically writes to the disk. But we can normally trust the OS on this issue even in case of unexpected power failures and shut-downs. But for the ...
by nageswaragunupudi
Sun Oct 22, 2023 11:24 am
 
Forum: FiveWin for Harbour/xHarbour
Topic: DBF . Commit
Replies: 39
Views: 2209

Re: DBF . Commit

Goto Recno() works the same .. physically moves the record pointer back to itself thereby flushing and writing the buffers

Rick Lipkin
by Rick Lipkin
Fri Oct 20, 2023 3:13 pm
 
Forum: FiveWin for Harbour/xHarbour
Topic: DBF . Commit
Replies: 39
Views: 2209

Re: Lost connection to MySQL server during query

... or unstable internet connection or rarely a problem with the provider of the cloud server. If the error is displayed, the user needs to physically make sure or restore the connectivity and "retry" the same operation or do any other operations. Gets automatically reconnects ...
by nageswaragunupudi
Mon Sep 04, 2023 4:56 pm
 
Forum: FiveWin for Harbour/xHarbour
Topic: Lost connection to MySQL server during query
Replies: 37
Views: 11987

Re: use Result of SQL Query like "ADODB.Recordset"

... of the past .. specifically, lets say I have a corporate SQL application that needs to run on 3000 machines .. that means that (someone ) has to physically go to each of those machines and make sure ODBC is loaded and configured properly .. ADO has no such limitations because oledb comes with ...
by Rick Lipkin
Fri Jun 30, 2023 1:32 pm
 
Forum: FiveWin for Harbour/xHarbour
Topic: use Result of SQL Query like "ADODB.Recordset"
Replies: 4
Views: 335

Re: CLASS modification

... task. Retirement sounds great until boredom sets in. Too many of my peers are rapidly declining, or passing away, because they didn't stay active physically and mentally. That is why so many people who retired have gone back to work, even if part time. Idle time is just not healthy. Tim
by TimStone
Thu May 25, 2023 11:30 pm
 
Forum: FiveWin for Harbour/xHarbour
Topic: CLASS modification
Replies: 33
Views: 1671

Re: Transaction security with DBF

... written to disk, rows that were added during the transaction are deleted. In the case of DBF tables, the rows are marked as deleted, but are not physically removed from the table. If you want to actually remove them, you can pack the table with PACK. Rows that were just edited are returned to ...
by Otto
Fri Sep 09, 2022 6:30 am
 
Forum: FiveWin for Harbour/xHarbour
Topic: Transaction security with DBF
Replies: 9
Views: 722

Re: Speedtest CLIPPER vs. xHarbour - COMMIT

... to Operating System which is automatically redirected if necessary by OS to File Server that we ask to flush OS or FS disk I/O write buffers physically to disk. OS / FS can ignore our request, can execute it immediately or can only mark that it should be done in some nearest future. It's ...
by Antonio Linares
Fri Apr 30, 2021 12:07 pm
 
Forum: FiveWin for Harbour/xHarbour
Topic: Speedtest CLIPPER vs. xHarbour - COMMIT
Replies: 20
Views: 5706

Re: Listbox to xBrowse

... station. All PC, notebooks, etc. backup in auto mode to the SYNOLOGY. SYNOLOGY gives you backup options you want belief. There is another SYNOLOGY physically separated in another house to which the inhouse SYNOLOGY saves. Best regards, Otto https://mybergland.com/fwforum/lans.jpg https://mybergland.com/fwforum/firewall.jpg ...
by Otto
Sun Oct 11, 2020 9:08 am
 
Forum: FiveWin for Harbour/xHarbour
Topic: Listbox to xBrowse
Replies: 8
Views: 869

Re: Preview in Terminal Server does not look good - Antonio Help

Otto, thanks I think your suggestion is to physically print the metafile and that is not the problem. The metafile generated by the application is perfect. The problem occurs at the moment when the application preview on the screen any report ...
by Cgallegoa
Sun Feb 09, 2020 8:49 pm
 
Forum: FiveWin for Harbour/xHarbour
Topic: Preview in Terminal Server does not look good - Antonio Help
Replies: 10
Views: 1738

Re: Preview in Terminal Server does not look good - Antonio Help

... thanks for your answer If I'm not wrong, the METHOD PrintPrv is used to send the preview to the printer, and there is no problem there. Print physically perfect. The problem is when he paints the lines in the preview (only the lines, the rest is perfect). In other words, the lines look bad ...
by Cgallegoa
Sun Feb 09, 2020 6:37 pm
 
Forum: FiveWin for Harbour/xHarbour
Topic: Preview in Terminal Server does not look good - Antonio Help
Replies: 10
Views: 1738

Re: communicating via shared memory

Dear Antonio, crypt is working fine. Now the only problem left is how to hide cPW in case someone gets physically access to the server. It would be great if you could provide a solution to store the password into server memory. Best regards Otto I use: to read the documents:local ...
by Otto
Wed Sep 11, 2019 2:49 pm
 
Forum: mod_harbour
Topic: communicating via shared memory
Replies: 7
Views: 1048
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