# Teradata vendor-specific interface · access · 2020

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.

0.9375% of the full access layer.

[Teradata vendor-specific interface](https://history.columnar.tech/technologies/access/vendor-teradata.md): historical names and annual shares.

Connections below describe the whole Teradata 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 |
| --- | --- | --- |
| [JDBC](https://history.columnar.tech/technologies/access/jdbc.md) | 30.5% | 1.3% |
| [ODBC](https://history.columnar.tech/technologies/access/odbc.md) | 28.5% | 1.2% |
| [Teradata vendor-specific interface](https://history.columnar.tech/technologies/access/vendor-teradata.md) | 21.8% | 0.9% |
| [Python DB-API (other drivers)](https://history.columnar.tech/technologies/access/python.md) | 10.9% | 0.5% |
| [Other language/portable APIs](https://history.columnar.tech/technologies/access/other-api.md) | 8.3% | 0.4% |

## Storage use within this engine

| Option | Share of engine activity | Share of full storage layer |
| --- | --- | --- |
| [Teradata native storage](https://history.columnar.tech/technologies/storage/native-teradata.md) | 94% | 4% |
| [Standalone Parquet on HDFS](https://history.columnar.tech/technologies/storage/parquet-hdfs.md) | 2% | <0.1% |
| [Federated relational native stores (vendor unallocated)](https://history.columnar.tech/technologies/storage/remote-relational.md) | 2% | <0.1% |
| [Standalone ORC on HDFS](https://history.columnar.tech/technologies/storage/orc-hdfs.md) | 1% | <0.1% |
| [Standalone Parquet on object storage](https://history.columnar.tech/technologies/storage/parquet-object.md) | 1% | <0.1% |

[All percentages for 2020](https://history.columnar.tech/years/2020.md)

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[Markdown overview](https://history.columnar.tech/index.md) · [Interactive visualization](https://history.columnar.tech/?2020) · [Methodology](https://history.columnar.tech/methodology.md) · [Terms of use](https://history.columnar.tech/terms.md)

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