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hi Otto,

do you mean KB5031356

have a look at Microsoft Update Catalog
https://www.catalog.update.microsoft.com/Search.aspx?q=KB5031356

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as i have read KB5031356 made (again) Problem so there was a "Rollback"

After doing unlock also, dbrollback does not work Rollback works before (1) moving record pointer (2) before commit and also (3) before unlock. This is useful for making modifications in more than one dbf and ensure that either all changes are committed ...

After doing unlock also, dbrollback does not work Rollback works before (1) moving record pointer (2) before commit and also (3) before unlock. This is useful for making modifications in more than one dbf and ensure that either all changes are committed ...

... that CUST->CITY has the value: "ORIGINAL" if after making the change to "CHANGED" and doing the dbunlock, if before the dbrollback() another user modifies the value of CUST->CITY by "OTHER USER" when the rollback() is performed, what value will CUST->CITY ...

Mr. rao
Para los que no usamos MariaDB es posible usar BEGIN TRANSACTION, COMMIT Y ROLLBACK?
Tengo fwh 17.12

Dear Rao,

many thanks!

RDD Built-in ROLLBACK feature:
viewtopic.php?f=3&t=42174

It is less known, but ROLLBACK feature is already built into our DBFCDX and DBFNTX RDDs. I have not tested with other RDDs. This feature exists in the RDDs for many years. Simple Syntax: dbInfo( DBI_ROLLBACK )  This rolls back ...

Hola, Lo mas parecido a rollback que conozco para archivos .dbf es trabajar con archivos temporales y luego al final hacer un commit Es una tecnica que mejora mucho la integridad referencial para el caso que se produzca un corte. En todo ...

Hello all, does someone know if we have in HARBOUR something similar to this? Best regards, Otto http://www.dbase.com/help/Xbase/IDH_XBASE_ROLLBACK__.htm Show ROLLBACK( ) Topic group Related topics Cancels the transaction by undoing all logged changes. Syntax ROLLBACK([<database name expC>]) ...

... performed successfully. If any of those operations fails, then you "undo" what you have done. That is traditionally known as a "rollback". SQL engines provide such capability but using DBFs we have to do it ourselves, but as you see, it is quite easy :-) In example: you ...

... .t. TRY oCn:Insert(....) oCn:Update(...) oCn:Execute( "INSERT ... " ) ... CATCH lError := .t. END oCn:lThrowError := .f. if lError oCn:RollBack() else oCn:CommitTransaction() endif // -------- no esta funcionando..., dont work

... oError  MsgStop("Error al grabar"+CHR(10)+oError:description,"Error")  oCn:RollBack()END TRY  Esto está bien? TRY/CATCH construct not only does not work but can be misleading too because the FWH lib does not raise Runtime ...

... DBI_LOCKSCHEME 128 /* Locking scheme used by RDD */ #define DBI_ISREADONLY 129 /* Was the file opened readonly? */ #define DBI_ROLLBACK 130 /* Rollback changes made to current record */ #define DBI_USER 1000 /* User-defined DBI_ constants */ /* BLOB support - definitions for internal use by ...

... externo que se ejecute cada determinado periodo de tiempo, ir volcando todo lo guardado en las bases de datos. Intenté usar algun proceso como el ROLLBACK del SQL pero en harbour no existe nada similar. Les estaría muy agradecido a quienes habiendo pasado por el mismo problema me puedan aportar ...