Why does SQL query written in python gives me an error?

Question

I’m using selenium and undetected driver to scarp some information from website and compare them with data stored in MySQL MariaDB server on my vps. I done everything according to this tutorial: https://www.w3schools.com/python/python_mysql_where.asp

After all it looks like this

query = "SELECT polski, niemiecki from tlumaczenie where polski = %s"
translate = driver.find_element(By.CSS_SELECTOR, "div[class='translations']").text
cursor.execute(query, translate)
res = cursor.fetchall()
print(res)

Whenever I run this code I’m getting an error:

You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ‘%s’ at line 1′

I tried to adding ‘ and " tags next to %s but then all I’m getting is empty list even if data are stored in table.

Asked By: Filip Pieprzyk

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Answer 1

Your 2nd argument to cursor.execute is a string, it needs to be a tuple.
Notice in the example you linked to, they use adr = ("Yellow Garden 2", ), that’s how you create a single-element tuple in Python

Try this:

cursor.execute(query, (translate,))

Answered By: Adam.Er8

Why does SQL query written in python gives me an error?

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