===== Database =====

The **Database** category in the MIStudio Logic Editor contains components used to connect to databases, discover database structure, read and write data, and perform database-based analysis.

Database components can be added from the **Database** category in the Logic Editor palette.

==== Overview ====

Database workflows in MIStudio may include:

  * Creating and configuring a database connection
  * Discovering available tables and columns
  * Reading data from a database
  * Writing or modifying database data
  * Sending database results to other logic components
  * Building Feature Extractor requests
  * Extracting features from historical process data
  * Comparing extracted feature sets

The exact components used depend on the database platform and the application workflow.

==== Database Connections ====

Database connection components provide access to external databases for other Logic Editor components.

See [[mistudio:logic_editor:database:connections:start|Database Connections]].

For Databricks setup, see:

  * [[mistudio:logic_editor:database:connections:databricks|Connecting MIStudio to Databricks]]

==== Database Operations ====

The Database category includes components for reading, writing, and inspecting database data.

These components can be used to:

  * Execute database queries
  * Return query results to application logic
  * Write or modify database records
  * Inspect database metadata such as available tables and columns

Individual component pages will document their properties, ports, and runtime behavior.

==== Feature Extraction and Analysis ====

The Database category also includes components for working with historical process data and calculated features.

These include:

  * [[mistudio:logic_editor:database:feature_extractor_request_creator|FeatureExtractorRequestCreator]]
  * **FeatureExtractorWide**
  * **FeatureComparator**

These components can be used together to build a feature extraction request, query historical process data, calculate metrics, and compare process executions.

Individual component pages will be added as this section is documented.
==== Related Pages ====

  * [[mistudio:logic_editor:start|MIStudio Logic Editor]]
  * [[mistudio:logic_editor:database:connections:start|Database Connections]]
  * [[mistudio:logic_editor:database:connections:databricks|Connecting MIStudio to Databricks]]