# Parameterized Query

A query keeping data values separate from SQL text through parameters.

## What is **Parameterized Query** in a relational database?

**Parameterized Query** — A query keeping data values separate from SQL text through parameters.

```sql
SELECT customer_id, email
FROM customer
WHERE email = ?;
```

Level: Journeyman · [More Database terms at this level](https://www.ask-codey.com/glossary/subjects/database/journeyman)

Updated: September 27, 2026

Source: https://www.ask-codey.com/glossary/parameterized-query