How Can I Safely Insert Multiple Variables into a MySQL Database Using Python?

Parameterized Queries in MySQL

Inserting multiple variables into a MySQL database table using the MySQLdb module can be tricky. Consider the following statement:

cursor.execute ("""
    INSERT INTO Songs (SongName, SongArtist, SongAlbum, SongGenre, SongLength, SongLocation)
    VALUES
        (var1, var2, var3, var4, var5, var6)

""")

However, using string interpolation in SQL queries is problematic because it can introduce security vulnerabilities by leaving your application susceptible to SQL injection. The correct approach is to use parameterized queries, which ensures proper escaping of input parameters.

Escaping Parameters

Instead of string interpolation, use placeholders in the query and bind the actual values to them using a tuple. For instance:

cursor.execute("INSERT INTO Songs (SongName, SongArtist, SongAlbum, SongGenre, SongLength, SongLocation) VALUES (%s, %s, %s, %s, %s, %s)", (var1, var2, var3, var4, var5, var6))

This method protects against SQL injection by automatically escaping the values before executing the query.

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