---
title: "Lusid.CorporateAction.Source"
slug: "lusidcorporateactionsource"
tags: ["luminesce ", "provider", "corporate action source"]
updated: 2026-08-04T10:28:05Z
published: 2026-08-04T10:28:05Z
canonical: "support.lusid.com/lusidcorporateactionsource"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://support.lusid.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Lusid.CorporateAction.Source

| **Type** | **Read/write** | **Author** | **Availability** |
| --- | --- | --- | --- |
| [Data provider](/v1/docs/what-are-a-data-provider-and-a-direct-provider) | Read | Finbourne | Provided with LUSID |

The `Lusid.CorporateAction.Source` provider enables you to write a [Luminesce SQL query](/v1/docs/understanding-the-luminesce-sql-query-syntax) that retrieves information about [corporate action sources](/v1/docs/how-do-i-create-a-corporate-action-source) in LUSID.

**See also**: [Lusid.CorporateAction.Source.Writer](/v1/docs/lusidcorporateactionsourcewriter)

## Basic usage

```sql
select * from Lusid.CorporateAction.Source where <filter-expression>
```

## Query parameters

`Lusid.CorporateAction.Source` has parameters that enable you to filter or refine a query.

To list available parameters, their data types, default values, and an explanation for each, run the following query using a [suitable tool](/v1/docs/what-tools-are-available-to-write-luminesce-queries):

```sql
select FieldName, DataType, ParamDefaultValue, Description from Sys.Field where TableName = 'Lusid.CorporateAction.Source' and FieldType = 'Parameter';
```

## Data fields

By default, `Lusid.CorporateAction.Source` returns a table of data populated with particular fields (columns). You can return a subset of these fields.

To list fields available to return, their data types, whether fields are considered 'main', and an explanation for each, run the following query using a [suitable tool](/v1/docs/what-tools-are-available-to-write-luminesce-queries):

```sql
select FieldName, DataType, IsMain, IsPrimaryKey, SampleValues, Description from Sys.Field where TableName = 'Lusid.CorporateAction.Source' and FieldType = 'Column';
```

> **Note:** Fields marked 'main' are returned by queries that use a caret character, for example `select ^ from Lusid.CorporateAction.Source`.

## Examples

> **Note:** For more example Luminesce SQL queries, visit our [Github repo](https://github.com/finbourne/luminesce-examples/tree/master/examples).

### Example 1: Retrieve the first ten corporate action sources

```sql
select * from Lusid.CorporateAction.Source limit 10
```

### Example 2: Retrieve all sources using a particular instrument scope

```sql
select * from Lusid.CorporateAction.Source where InstrumentScopes = 'secret-instr-scope'
```