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As explained in DuckDB in Action

A search box is a user-interface input control for entering or selecting a term used to search data.

A search bar is an input control for finding or selecting data. In Streamlit, a search box is a parameterized component: provide a search function, label, key, defaults, and placeholder, then let the component handle rendering and interaction. section 9.1.3

Selecting two players

Two search boxes call search_players as their contents change. Typing “Murr” returns Andy Murray; selecting a result assigns it to player1 or player2. Those values can parameterize a database query, produce a DataFrame, and drive a comparison of matches and wins. section 9.1.3

How DuckDB in Action covers it

How deep it goes
Explains component parameters, callbacks, autocomplete, selection, and downstream querying, but defers internal rendering details.
Examples
Demonstrates player selection, Andy Murray autocomplete, two-column layout, match queries, and win-count results.
What it assumes
Assumes Python and Streamlit basics while teaching component installation, parameterization, selection handling, and query integration.
What you can do after
Build it from scratch with streamlit-searchbox, connect selections to Python functions, and inspect filtered database results.
How it connects
Connects Streamlit components with autocomplete, database queries, DataFrames, and interactive data applications.
Cover of DuckDB in Action
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Related concepts

This explainer was generated by Manning's knowledge graph from the text of DuckDB in Action. The section links point to the parts of the book it draws on.