Why Is My Python MySQL Insert Operation Failing?

Python MySql Insert Operation Failing

In Python, utilizing the MySQLdb module to connect to a MySQL database occasionally presents challenges, especially when attempting to insert records. One common issue is that the insertion operation may not succeed due to a missing step.

Understanding the Code

Your code initializes a connection to the "pdfsearch" database using the MySQLdb API. It also creates a cursor object and attempts to insert a new row into the "documents" table. However, the code is missing a critical step for the insertion to take effect.

Inserting Data into MySQL

To successfully insert records into a MySQL database using Python, you must commit the changes made through the database connection. The db.commit() method must be called before closing the connection.

Revised Code

Here is the revised code that includes the db.commit() step:

<code class="python">import MySQLdb

db = MySQLdb.connect("localhost", "root", "padmaramulu", "pdfsearch")
cursor = db.cursor()

temp = "hello"
number = 2
cursor.execute('insert into documents(docid,docname) values("%d","%s")' % (number, temp))
db.commit()
db.close()</code>

Explanation

By adding the db.commit() line, you ensure that the changes made to the database are written to disk and become permanent. Without this step, the changes would be lost when the connection is closed.

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