ConnectorLib .NET 25.2
ConnectorLib .NET SDK Programming Guide

# Introduction

The datastore is a feature of ConnectorLib .NET that allows a connector to store structured information in a file.

Each datastore file contains SQL-like tables with defined columns.

You can use the features provided by ConnectorLib .NET to create new tables in the datastore, store and retrieve information efficiently, and manage upgrades and versioning.

## Quick Guide

The following table summarizes the functionality offered by the datastore.

Functionality | Provided By
--- | ---
Create or open a datastore | Create a `DatastoreFile` object
Close a datastore | Dispose of the `DatastoreFile` object
Create or open a table | `DatastoreFile.NewTable`
Insert a record | `Table.Insert` (pass a Record with all fields set)
Update a record | `Table.Update` (only fields set in the Record are updated)
Remove a record | `Table.Remove`
Commit changes | `DatastoreFile.ProcessQueue`
Select a single record that matches a filter | `Table.SelectOne`
Select all records that match a filter | `Table.Select`
Specify constraints | Call `AddUniqueReplaceConstraint` on a `ColumnList` and pass it to `DatastoreFile.NewTable`
Add an index for faster queries | `Table.CreateIndex`
Upgrade a table | `Table.Modify`

Copyright 2025 Open Text
Version 25.2 | Last updated April 2025

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Product: Knowledge Discovery ConnectorLib .NET 25.2

Topic Title: Introduction