MySQL Connector could not process parameters

I’m trying to loop through an array and insert each element into a table. As far as I can see my syntax is correct and I took this code straight from Microsoft Azure’s documentation.

try:
   conn = mysql.connector.connect(**config)
   print("Connection established")
except mysql.connector.Error as err:
  if err.errno == errorcode.ER_ACCESS_DENIED_ERROR:
    print("Something is wrong with the user name or password")
  elif err.errno == errorcode.ER_BAD_DB_ERROR:
    print("Database does not exist")
  else:
    print(err)
else:
  cursor = conn.cursor()
data = ['1','2','3','4','5']


for x in data:
   cursor.execute("INSERT INTO test (serial) VALUES (%s)",(x))
   print("Inserted",cursor.rowcount,"row(s) of data.")

conn.commit()
cursor.close()
conn.close()
print("Done.")

When I run this is gets to cursor.execute(...) and then fails. Here is the stack trace.

Traceback (most recent call last):
File “test.py”, line 29, in
cursor.execute(“INSERT INTO test (serial) VALUES (%s)”,(“test”))
File “C:UsersAlexJAppDataLocalProgramsPythonPython37libsite-packagesmysqlconnectorcursor_cext.py”, line 248, in execute
prepared = self._cnx.prepare_for_mysql(params)
File “C:UsersAlexJAppDataLocalProgramsPythonPython37libsite-packagesmysqlconnectorconnection_cext.py”, line 538, in prepare_for_mysql
raise ValueError(“Could not process parameters”)
ValueError: Could not process parameters

Answers:

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Method 1

Try this:

for x in data:
    value = "test"
    query = "INSERT INTO test (serial) VALUES (%s)"
    cursor.execute(query,(value,))
    print("Inserted",cursor.rowcount,"row(s) of data.")

Since you are using mysql module, cursor.execute requires a sql query and a tuple as parameters

Method 2

Nice answer from @lucas, but maybe this help other, cz i think more cleaner

sql = "INSERT INTO your_db (your_table) VALUES (%s)"
val = [("data could be array")]
cursor = cnx.cursor()
cursor.execute(sql, val)
print("Inserted",cursor.rowcount,"row(s) of data.")
cnx.commit()
cnx.close()

Cz this is useful for my purpose, to input multiple data.

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0