Search vectors
Performs a vector search agains a SQL Server / Azure SQL database and returns an IVectorSearchResult object that can be passed to a Chat completion action.
Example 
This flow processes a user's chat question by first receiving it through a Chat completion trigger, then converting it into a vector using a text embedder, performing a Vector search in an SQL database for relevant context, and finally passing the user input and retrieved context to an Azure AI Chat completion action, which generates a response that is returned to the client via the Return node.
Properties
| Name | Type | Description |
|---|---|---|
| Title | Optional | The title or name of the action. |
| Connection | Required | The SQL Server database connection that will be used for the vector search. |
| Table | Required | The name of the table where the vector search will be performed. |
| Search text | Required | The input text string used to perform the vector search; can be provided dynamically. |
| Record definition | Required | The definition of columns used in the vector search. Note: The vector column is not returned. |
| Filter | Optional | A filter expression to narrow down the records (e.g., category = blue). |
| Top | Optional | The maximum number of top results to return. |
| Skip | Optional | The number of top results to skip (default: 0). |
| Distance function | Optional | The method for calculating vector similarity, e.g., Cosine Distance (default). |
| Score limit (0–2) | Optional | A threshold value that filters results based on similarity score (lower = more similar). |
| Prompt template | Optional | Controls the output format for search results. The system will replace placeholders like @[fieldName] with the relevant data. |
| Search result variable name | Optional | The name of the variable to store results, e.g. searchResult. |
| Command timeout (seconds) | Optional | The timeout duration for the SQL command (in seconds). |
| Description | Optional | Additional notes or metadata for the action. |
Record definition
You are required to specify the key, content and vector columns as Field definitions. 
Returns
The Search vectors action returns an IVectorSearchResult object that can be passed to the Chat completion Context property.