XML AJAXLesson 28Free preview

AJAX Database

This lesson is part of XML · All levels

Summary

AJAX accesses the database indirectly: the browser requests the server script, the server script runs the query, and the result is sent back as XML or JSON. This pattern keeps database credentials on the server and opens security gates like SQL injections if not careful. With the query parameterization, data access from AJAX remains secure.

Key points

The browser does not directly access the database
The server script becomes the intermediary that runs the query
The query result is returned as XML or JSON
Prepared statement prevents SQL injection attacks
Negative responses should be handled with a clear message

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