Ограничения Paradox
Table and Index Files
127 — Tables open per system
64 — Record locks on one table (16Bit) per session
255 — Record locks on one table (32Bit) per session
255 — Records in transactions on a table (32 Bit)
512 — Open physical files (DB, PX, MB, X??, Y??, VAL, TV)
300 — Users in one PDOXUSRS.NET file
255 — Number of fields per table
255 — Size of character fields
2 — Billion records in a table
2 — Billion bytes in .DB (Table) file
10800 — Bytes per record for indexed tables
32750 — Bytes per record for non-indexed tables
127 — Number of secondary indexes per table
16 — Number of fields in an index
255 — Concurrent users per table
256 — Megabytes of data per BLOB field
100 — Passwords per session
15 — Password length
63 — Passwords per table
159 — Fields with validity checks (32 Bit)
63 — Fields with validity checks (16 Bit)
Взято с Delphi Knowledge Base: https://www.baltsoft.com/