SQL script
Definition
An SQL script is a set of SQL commands saved in a file or run together. It can create tables, insert data, update records, delete records, or inspect information in a database.
Why it matters
SQL scripts can make database work repeatable, but they can also make large changes very quickly. They need careful review before being run, especially on staging or production databases.
Example in VCA
In VCA, learners may see SQL scripts when learning how database schemas, migrations, and seed data relate to the records an app displays.
Another Real World Example
A developer might use an SQL script to create a report of active users or to apply a carefully reviewed data correction.
Common mistakes
- Running an SQL script against the wrong database.
- Forgetting a
WHEREclause on an update or delete. - Changing production data without a backup.
- Assuming SQL works identically across every database engine.
- Not testing the script on a safe copy of the data first.