Ограничения Foxpro

Table and Index Files
Max. # of records per table 1 billion*
Max. # of chars per record 65,000
Max. # of fields per record 255
Max. # of open DBFs 225
Max. # of chars per field 254
Max. # of chars per index key (IDX) 100
Max. # of chars per index key (CDX) 240
Max. # of open index files per table unlimited**
Max. # of open index files in all work areas unlimited**
* The actual file size (in bytes) cannot exceed 2 gigabytes for single-user or exclusively opened multi-user tables. Shared tables with no indexes or .IDX indexes cannot exceed 1 gigabyte. Shared tables with structural .CDX indexes cannot exceed 2 gigabytes.
** Limited by memory. In FoxPro for MS-DOS and FoxPro for Windows, also limited by available MS-DOS file handles. Each .CDX file uses only 1 file handle. The number of MS-DOS file handles is determined by the CONFIG.SYS FILES parameter.
Field Characteristics
Max. size of character fields 254
Max. size of numeric fields 20
Max. # of chars in field names 10
Digits of precision in numeric computations 16
Взято с Delphi Knowledge Base: http://www.baltsoft.com/

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