Answer Server 25.3
Answer Server Help

# BackendType

The type of back end you want to use for the fact store component. This parameter is used only for systems that have Type set to `Factbank`.

You can use one of the following values:

- sqldb. Use an SQL database. In this case, you must also set ConnectionString to the connection string to use to connect to the fact store database.

- lua. Use a custom Lua script. In this case, you must also set ScriptPath to specify the Lua script that you want to use, and you can optionally set ScriptFunction to the name of the entry function that Answer Server must call.

For all backends, you must configure the question parser Named Entity Recognition grammars by using the EductionQuestionGrammars and EductionTimeGrammars parameters, and configure the coding files by using the CodingsDatPath and CodingsPath parameters.

Type: | String
Default: |
Required: | Yes, for `Factbank` systems.
Configuration Section: | MySystem
Example: | `BackendType=sqldb`
See Also: |

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Version 25.3 | Last updated July 2025

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Product: Knowledge Discovery Answer Server 25.3

Topic Title: BackendType