F.4.2 Limits and Ranges

The following limits exist for the DBMaker protocol:

Maximum indexed key size
1024
Maximum number of columns per key
16
Maximum number of columns
252
Maximum length of a char field
3992 bytes

To achieve the same sort or retrieval sequence under DBMaker as under the Vision file system, place a BINARY directive immediately before each key field that contains signed numeric data. High values and low values can cause problems in key fields.

With the Acu4GL product, a maximum of 57 database tables can be open at one time by a single process.

Other limits are described in Appendix B of the ACUCOBOL-GT documentation.

Maximum indexed key size	1024
Maximum number of columns per key	16
Maximum number of columns	252
Maximum length of a char field	3992 bytes