03 Mai 2018 23:15
04 Mai 2018 00:44
Advantage does this by using a 64-bit unsigned integer to calculate the file offsets, while VFP uses a 32-bit signed integer. Using a larger value to track the file offsets allows Advantage to access DBF files that exceed 2GB in size. However, the native VFP driver will no longer recognize this file as a valid table.
When using Advantage the file size is limited by the operating system and available disk space. When using one of the latest file systems (i.e. NTFS, NSS) the file limit size limit is in Exabytes ( 1EB = 1 billion GB). A more realistic limitation is on the number of records that can be stored in the table. This is currently limited to 2 billion records therefore the maximum size of your table will be 2 billion times your record size.
04 Mai 2018 11:18
07 Mai 2018 14:18
Problem: An open table greater than 4GB in size was attempted with compatibility locking. Due to lock offsets required to implement record locking that can be shared across applications (either non-Advantage applications or applications that use Advantage Local Server), the table cannot be opened.
Solution: If you are using Advantage Database Server, open the table with proprietary locking. With Advantage Local Server, it is necessary to open the table in exclusive mode.
07 Mai 2018 14:26
07 Mai 2018 14:54
08 Mai 2018 03:11