Advantage Concepts
Description |
Length |
Maximum number of index orders per compound index file |
50 |
Maximum number of index files open per table |
15 |
Maximum file size |
|
Windows NT/2000/2003 with NTFS |
2 gigabytes (2,147,483,648 bytes) multiplied by record length |
Windows NT/2000/2003 with FAT32 |
4 gigabytes (4,294,967,296 bytes) |
NetWare 5 and greater with NSS file systems* |
2 gigabytes (2,147,483,648 bytes) multiplied by record length |
NetWare 5 and greater with traditional file systems |
4 gigabytes (4,294,967,296 bytes) |
Linux pre-2.1.2 - 11 glibc and pre-2.4 kernel |
2 gigabytes (2,147,483,648 bytes) |
Linux glibc 2.1.2 - 11+ with kernel 2.4+ |
2 gigabytes (2,147,483,648 bytes) multiplied by record length |
Maximum index size |
4 gigabytes (4,294,967,296 bytes) |
Maximum memo file size |
|
Windows NT/2000/2003 with NTFS |
4 gigabytes multiplied by (Memo Page Size) : Max 4 terabytes |
Windows NT/2000/2003 with FAT32 |
4 gigabytes (4,294,967,296 bytes) |
NetWare 5 and greater with NSS file systems* |
4 gigabytes multiplied by (Memo Page Size) : Max 4 terabytes |
NetWare 5 and greater with traditional file systems |
4 gigabytes (4,294,967,296 bytes) |
Linux pre-2.1.2 - 11 glibc and pre-2.4 kernel |
2 gigabytes (2,147,483,648 bytes) |
Linux glibc 2.1.2 - 11+ with kernel 2.4+ |
4 gigabytes multiplied by (Memo Page Size) : Max 4 terabytes |
Maximum database size |
No maximum - limited by disk space only |
Maximum number of records per table |
2 billion |
Maximum record length |
65530 bytes |
Maximum field name length |
10 characters for traditional Xbase DBFs. 128 characters for Visual FoxPro (VFP) tables associated with a data dictionary. |
Maximum index order name length |
10 characters |
Characters allowed in field names |
Characters ‘a’-‘z’ and ‘A’-‘Z’, digits ‘0’-‘9’, and the underscore ‘_’ character |
Characters allowed in index order names |
Characters ‘a’-‘z’ and ‘A’-‘Z’, digits ‘0’-‘9’, and the underscore ‘_’ character |
Maximum amount of data per binary/image/BLOB field |
4 gigabytes |
Maximum number of fields per table |
2035 |
Maximum traditional record filter expression text length |
65,534 characters |
Maximum Advantage Optimized Filter (AOF) expression text length |
65,534 characters |
Maximum number of transactions |
Limited by memory |
Maximum number of connections |
Limited by memory |
Maximum number of files opened simultaneously |
Limited by memory |
Maximum number of locks |
Limited by memory |
* With NetWare 5 and greater, file sizes greater than 4GB require a special build of ads.nlm in conjunction with a certain NetWare support pack. Contact your Advantage distributor for more information.
Maximum length of key expression text and maximum length of conditional expression text |
NTX |
256 bytes |
|
IDX (non-compact) |
220 bytes |
|
IDX (compact) |
512 bytes** |
|
CDX |
512 bytes** |
|
|
|
Maximum length of evaluated key expression |
NTX |
256 bytes |
|
IDX (non-compact) |
100 bytes |
|
IDX (compact) |
240 bytes |
|
CDX |
240 bytes |
** The combined length of the index key expression text and conditional expression text must not be longer than 512 bytes