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Table B.1. Default settings
| Default dataset descriptor table size | 1024 bytes |
| Default relational table size | 4096 bytes |
Table B.2. Limitations
| Threads | MemCom is not thread-safe. |
| Maximum number of simultaneously open databases | 100 files |
| Maximum dataset name length | 63 characters |
| Maximum relational table key name length | 63 characters |
| Maximum file name length | 1023 characters |
| Maximum sparse table column name length | 63 characters |
| Maximum number of columns for sparse table datasets | 65536 columns |
| Maximum number of elements for sparse table columns/cells | 2^32 elements |
| Maximum number of rows for sparse table datasets | Depends on the machine's main memory. |