# Other relational products vendor-specific interface · access · 1981

Revision 1 (11 October 2026) · Modeled snapshot · through 8 October 2026.

All figures are research-informed estimates of analytical activity. Significant errors may remain; decimal places do not imply measurement precision.

3% of the full access layer.

[Other relational products vendor-specific interface](https://history.columnar.tech/technologies/access/vendor-other-relational.md): historical names and annual shares.

Relational engines without a separate box. Examples over this history include Rdb, Progress, SQLBase, and InterBase/Firebird, in their available years. Desktop databases and Informix have separate allocations. Rdb remains in this pool after Oracle’s acquisition; it is distinct from Oracle Database. Only analytical work is counted, and the individual products’ shares within this pool are not estimated.

Connections below describe the whole Other relational products engine. Access and storage mixes are estimated separately; they are not a joint interface-to-storage distribution.

## Access use within this engine

| Option | Share of engine activity | Share of full access layer |
| --- | --- | --- |
| [Other relational products vendor-specific interface](https://history.columnar.tech/technologies/access/vendor-other-relational.md) | 100% | 3% |

## Storage use within this engine

| Option | Share of engine activity | Share of full storage layer |
| --- | --- | --- |
| [Other relational products native storage](https://history.columnar.tech/technologies/storage/native-other-relational.md) | 100% | 3% |

[All percentages for 1981](https://history.columnar.tech/years/1981.md)

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