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Insert list of data into SQL table but got an Error : mysql.connector.errors.ProgrammingError: Not all parameters were used in the SQL statement

sql = """INSERT INTO (Product_details) VALUES (%s, %s, %s, %s, %s, %s)"""
val = [name, Spec ,Ratings ,Delivery ,Discount ,Price ] # list of data into list
for values in val: #loping the variables in the list and adding it to database
engine.execute(sql, values)

It looks like you're using Python - Try ? instead of %s - sometimes the parameter marker is not what you would expect it to be so do check which one you need to use for the language you're embedding the SQL in

pymysql.err.ProgrammingError: (1064, "You have an error in your SQL syntax

I am attempting to write into MySQL Table that was created using phpMyAdmin. I keep recieving the same error.
This is my code:
import pymysql
connection=pymysql.connect(user='root',password='', host='localhost',database='ProjDB')
cursor = connection.cursor()
sql = "INSERT INTO 'userdata' ('FName','LName','UserName','Pword') VALUES (%s, %s, %s, %s)"
cursor.execute(sql, ('XXXX','XXX','XXXX','XXXX'))
connection.commit()

The following line your code has some errors:
sql = "INSERT INTO 'userdata' ('FName','LName','UserName','Pword') VALUES (%s, %s, %s, %s)"
Your table name has single quote added to it. sql treats it as a string instead of table name.
The column names also are facing the same issue.
The values should be enclosed in single quotes as when formatting it via string the values are placed exactly as the string is without single quotes.
example to explain it more clearly:
your current code formats the VALUES as :
sql = "INSERT INTO 'userdata' ('FName','LName','UserName','Pword') VALUES ( XXXX, XXX, XXXX, XXXX)"
But your columns are of type varchar so they should be enclosed in single quotes.
change that query by removing the single quotes from table name and column names and add single quotes to the values.
sql = "INSERT INTO userdata (FName,LName,UserName,Pword) VALUES ('%s', '%s', '%s', '%s')"
cursor.execute(sql % ('XXXX','XXX','XXXX','XXXX'))
The Final formatted sql query will look like
INSERT INTO userdata (FName,LName,UserName,Pword) VALUES ('XXXX','XXX','XXXX','XXXX')

pymysql: How to format types on query?

I'm trying to insert rows on a MySQL table using pymysql (Python 3), the relevant code is the following.
def saveLogs(DbConnection, tableName, results):
for row in results:
formatStrings = ",".join(["?"]*len(row))
sql = "INSERT INTO %s VALUES (%s);"%(tableName,formatStrings)
DbConnection.cursor().execute(sql, tuple(row))
DbConnection.commit()
I'm using "?" for the types, but I get the error not all arguments converted during string formatting. row is a list composed of strings, ints and datetime.datetime. I guess the issue is the "?" but I have checked the PEP 249 and it's still not clear to me how should I do it. Any suggestions?

Use string formatting for the table name only (though make sure you trust the source or have a proper validation in place). For everything else, use query parameters:
def saveLogs(DbConnection, tableName, results):
cursor = DbConnection.cursor()
sql = "INSERT INTO {0} VALUES (%s, %s, %s)".format(tableName)
for row in results:
cursor.execute(sql, row)
DbConnection.commit()
There is also that executemany() method:
def saveLogs(DbConnection, tableName, results):
cursor = DbConnection.cursor()
cursor.executemany("INSERT INTO {0} VALUES (%s, %s, %s)".format(tableName), results)
DbConnection.commit()

Psycopg2 Insert Into Table with Placeholders

This might be a rather silly question but what am I doing wrong here? It creates the table but the INSERT INTO doesn't work, I guess I'm doing something wrong with the placeholders?
conn = psycopg2.connect("dbname=postgres user=postgres")
cur = conn.cursor()
escaped_name = "TOUR_2"
cur.execute('CREATE TABLE %s(id serial PRIMARY KEY, day date, elapsed_time varchar, net_time varchar, length float, average_speed float, geometry GEOMETRY);' % escaped_name)
cur.execute('INSERT INTO %s (day,elapsed_time, net_time, length, average_speed, geometry) VALUES (%s, %s, %s, %s, %s, %s)', (escaped_name, day ,time_length, time_length_net, length_km, avg_speed, myLine_ppy))
conn.commit()
cur.close()
conn.close()
The INSERT INTO call doesn't work, it gives me
cur.execute('INSERT INTO %s (day,elapsed_time, net_time, length, average_speed,
geometry) VALUES (%s, %s, %s, %s, %s, %s)'% (escaped_name, day ,time_length,
time_length_net, length_km, avg_speed, myLine_ppy))
psycopg2.ProgrammingError: syntax error at or near ":"
LINE 1: ...h, average_speed, geometry) VALUES (2013/09/01 , 2:56:59, 02...
Can someone help me on this one? Thanks a bunch!

You are using Python string formatting and this is a Very Bad Idea (TM). Think SQL-injection. The right way to do it is to use bound variables:
cur.execute('INSERT INTO %s (day, elapsed_time, net_time, length, average_speed, geometry) VALUES (%s, %s, %s, %s, %s, %s)', (escaped_name, day, time_length, time_length_net, length_km, avg_speed, myLine_ppy))
where the tuple of parameters is given as second argument to execute(). Also you don't need to escape any value, psycopg2 will do the escaping for you. In this particular case is also suggested to not pass the table name in a variable (escaped_name) but to embed it in the query string: psycopg2 doesn't know how to quote table and column names, only values.
See psycopg2 documentation:
https://www.psycopg.org/docs/usage.html#passing-parameters-to-sql-queries
If you want to programmatically generate the SQL statement, the customary way is to use Python formatting for the statement and variable binding for the arguments. For example, if you have the table name in escaped_name you can do:
query = "INSERT INTO %s (col1, ...) VALUES (%%s, ...)" % escaped_name
curs.execute(query, args_tuple)
Obviously, to use placeholders in your query you need to quote any % that introduce a bound argument in the first format.
Note that this is safe if and only if escaped_name is generated by your code ignoring any external input (for example a table base name and a counter) but it is at risk of SQL injection if you use data provided by the user.

To expand on #Matt's answer, placeholders do not work for identifiers like table names because the name will be quoted as a string value and result in invalid syntax.
If you want to generate such a query dynamically, you can use the referred to pyscopg2.sql module:
from psycopg2.sql import Identifier, SQL
cur.execute(SQL("INSERT INTO {} VALUES (%s)").format(Identifier('my_table')), (10,))

As of psycopg2 v2.7 there is a supported way to do this: see the psycopg2.sql docs.

MySQL Dynamic Query Statement in Python

I am trying to accomplish something like the following:
cursor = db.cursor()
cursor.execute('INSERT INTO media_files (%s, %s, %s, %s ... ) VALUES (%s, %s, %s, %s, ...)', (fieldlist, valuelist))
cursor.commit()
I have 2 lists, fieldlist and valuelist which each contain the same number of items. What is the best way to generate a dynamic MySQL query statement where the collumns are stored in fieldlist and the values are stored in valuelist?

cursor.execute('INSERT INTO media_files (%s) VALUES (%%s, %%s, %%s, %%s, ...)' % ','.join(fieldlist), valuelist)
To make it clearer:
sql = 'INSERT INTO media_files (%s) VALUES (%%s, %%s, %%s, %%s, ...)' % ','.join(fieldlist)
cursor.execute(sql, valuelist)

The cursor expects parameters to be passed as a single sequence, so you need to combine - in order - the field and value lists.
itertools.chain() does exactly that however it returns a generator and I'm not sure if cursor.execute() will accept that as it's param sequence. Try it. If it fails, wrap it with list()
import itertools
sql = 'INSERT INTO media_files (%s, %s, %s, %s ... ) VALUES (%s, %s, %s, %s, ...)'
cursor.execute(sql, itertools.chain(fieldlist, valuelist))
EDIT:
This solution will not work. This would cause the field names to be escaped and wrapped with quotes which would cause an sql syntax error.
I'll leave this answer as it might serve as a useful example but look to #Trent's answer for the solution.