Why Does My SQL INSERT Statement Return 'Not All Parameters Were Used'?

Understanding the "Not All Parameters Were Used in the SQL Statement" Error

The provided Python code attempts to execute an SQL INSERT statement using the mysql.connector library. However, an error is encountered: "Not all parameters were used in the SQL statement."

Reviewing the add_user query, we notice that the correct parameter marker for integer values is not %d, but rather %s. The modified query should be:

add_user = ("INSERT INTO DB.tbluser "
       "(username, department, startyear, currentpos, link) "
       "VALUES (%s, %s, %s, %s, %s)")

The %s parameter marker is used consistently for both string and integer values, ensuring that all parameters provided in the data_user tuple are consumed by the SQL statement. This resolves the issue and allows the insertion to succeed.

It's important to note that different database adapters may use different parameter markers. Always consult the documentation for the specific adapter you are using.

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