# Querying

- [The collection object](https://clear.gitbook.io/project/querying/the-collection-object.md)
- [Filter the query](https://clear.gitbook.io/project/querying/the-collection-object/filter-the-query-1.md): Clear offers many tools to filter and refine your query
- [Filter the query – The Expression Engine](https://clear.gitbook.io/project/querying/the-collection-object/filter-the-query-1/filter-the-query.md)
- [Find, First, Last, Offset, Limit](https://clear.gitbook.io/project/querying/the-collection-object/filter-the-query-1/find-first.md)
- [Aggregation](https://clear.gitbook.io/project/querying/the-collection-object/filter-the-query-1/aggregation.md)
- [Ordering & Group by](https://clear.gitbook.io/project/querying/the-collection-object/filter-the-query-1/ordering.md)
- [Fetching the query](https://clear.gitbook.io/project/querying/the-collection-object/fetching-the-query.md)
- [Each and Fetch](https://clear.gitbook.io/project/querying/the-collection-object/fetching-the-query/each-map-fetch.md)
- [Cursored fetching](https://clear.gitbook.io/project/querying/the-collection-object/fetching-the-query/cursored-fetching.md)
- [Model extra attributes](https://clear.gitbook.io/project/querying/the-collection-object/fetching-the-query/model-attributes.md)
- [Joins](https://clear.gitbook.io/project/querying/the-collection-object/joins.md)
- [Eager Loading](https://clear.gitbook.io/project/querying/the-collection-object/n+1-query-avoidance.md)
- [Window and CTE](https://clear.gitbook.io/project/querying/the-collection-object/window-and-cte.md)
- [Scopes](https://clear.gitbook.io/project/querying/the-collection-object/scopes.md)
- [Writing low-level SQL](https://clear.gitbook.io/project/querying/low-level-sql.md)
- [Select Clause](https://clear.gitbook.io/project/querying/low-level-sql/select-clause.md)
- [Insert Clause](https://clear.gitbook.io/project/querying/low-level-sql/insert-clause.md)
- [Delete Clause](https://clear.gitbook.io/project/querying/low-level-sql/delete-clause.md)


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://clear.gitbook.io/project/querying.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.