I can not execute a Python file to import CSV file to MySQL table.
import csv
import mysql.connector
mydb = mysql.connector.connect(
host='localhost',
user='root',
passwd='',
database='ricoh_oms'
)
cursor = mydb.cursor()
csv_data = csv.reader(open("slv_internal.csv"))
for row in csv_data:
cursor.execute("INSERT INTO slv_internal (GID, FullName, CostCenter) VALUES (%s, %s, %s)")
mydb.commit()
cursor.close()
print("Done")
I am newbie and dont understand the meaning of marker %s in the error. Thansk for your help. The error is:
Error:
"mysql.connector.errors.ProgrammingError: 1064 (42000): You have an
error in your SQL syntax; check the manual that corresponds to your
MySQL server version for the right syntax to use near '%s, %s, %s)' at
line 1"
you are trying to Execute Parameterized Query
Example:
insert_stmt = (
"INSERT INTO employees (emp_no, first_name, last_name, hire_date) "
"VALUES (%s, %s, %s, %s)"
)
data = (2, 'Jane', 'Doe', datetime.date(2012, 3, 23))
cursor.execute(insert_stmt, data)
in code you are missing parameters:
cursor.execute("INSERT INTO slv_internal (GID, FullName, CostCenter) VALUES (%s, %s, %s)", ("value1","value2","value3"))
some documentation:
https://dev.mysql.com/doc/connector-python/en/connector-python-api-mysqlcursor-execute.html
Related
I have created a table named 'Patient':
import mysql.connector as mysql
db=mysql.connect(host="localhost", user="root", password="xxxx",
database='project')
cursor = db.cursor()
pat = 'create table Patient(ID char(10) primary key,Token int(10),Name
varchar(20),Phone int(10),Email char(20),Age int(3),BG_needed
char(3),Quantity char(2),Gender char(1),Date date)'
cursor.execute(pat)
sql = 'Insert into
Patient(ID,Token,Name,Phone,Email,Age,BG_needed,Quantity,Gender)
values (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s)'
val = ('pat1','2','Aaron','93242995','aArons12#gmail.com','20','B-','3L','M',
'2022-10-01')
cursor.execute(sql, val)
db.commit()
for x in cursor:
print(x)
And I'm getting the output as:
DataError: Column count doesn't match value count at row 1
Can you please help me find the error?
I'm sorry if you think I'm asking a silly question, I'm just in 11th grade, and this topic wasn't taught to us. I'm trying to learn this on my own...
There are too many problems in your script. Your number of parameters don't match.
import mysql.connector as mysql
db = mysql.connect(host="localhost", user="root",
password="xxxx",database='project')
cursor = db.cursor()
pat = 'create table Patient(ID char(10) primary key,Token int(10),Name
varchar(20),Phone int(10),Email char(20),Age int(3),BG_needed
char(3),Quantity char(2),Gender char(1),Date date)'
cursor.execute(pat)
sql = 'Insert into
Patient(ID,Token,Name,Phone,Email,Age,BG_needed,Quantity,Gender,Date)
values (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s)'
val = ('pat1','2','Aaron','93242995','aArons12#gmail.com','20','B-
','3L','M','2022-10-01')
cursor.execute(sql, val)
db.commit()
for x in cursor:
print(x)
It was an easy fix. Hope that you find it useful
I need to install tupule value to database,but getting "Unknown column 'Mac' in 'field list'" error
Below is the code i used
import mysql.connector, csv, sys
conn = mysql.connector.connect(
host="localhost",
user="root",
passwd="root",
database="mydjangoapp",
port=3307,
)
cursor=conn.cursor()
t1=('Mac', 'Mohan')
sql="insert into books (title,isbn) values(%s,%s)" %t1
cursor.execute(sql)
Don't use % interpolation, use placeholders.
t1 = ('Mac', 'Mohan',)
cursor.execute("INSERT INTO books (title, isbn) VALUES (%s, %s)", t1)
I have this code to import my csv to mysql database:
import csv
import mysql.connector
import re
change = "hello"
mydb = mysql.connector.connect(user='root', password='',
host='localhost',
database='jeremy_db')
file = open('C:\\Users\\trendMICRO\\Desktop\\OJT\\test.csv', 'rb')
csv_data = csv.reader(file)
mycursor = mydb.cursor()
cursor = mydb.cursor()
for row in csv_data:
cursor.execute('INSERT INTO table_test(col1,col2,col3,col4)' 'VALUES(%s, %s, %s, %s)',row)
mydb.commit()
cursor.close()
print("Done")
Can I change the values of %s into my variable change = "hello"?
Please help me I'm new to python, I tried every solution but I can't find how to change the values. I tried this VALUES(hello, %s, %s, %s)',row) but it doesn't work
For this very particular case, you'd simply hardcode the value in the query:
cursor.execute('INSERT INTO ... VALUES ("hello", %s, %s, %s)', row)
Now you have only three placeholders in your query though, so you need to ensure that row is a list with three items. E.g.:
cursor.execute('INSERT INTO ... VALUES ("hello", %s, %s, %s)', row[1:])
If you really wanted to use a variable, you could do something like:
row[0] = change
cursor.execute('INSERT INTO ... VALUES (%s, %s, %s, %s)', row)
Or:
cursor.execute('INSERT INTO ... VALUES (%s, %s, %s, %s)', [change] + row[1:])
import MySQLdb
import csv
mydb = MySQLdb.connect(host='localhost',user='root',passwd='root', db='kabir')
cursor = mydb.cursor()
data = csv.reader(file('data.csv'))
#cursor.execute('create table actors(name varchar(20),age integer)')
for row in data:
cursor.execute('INSERT INTO actors(name,age) VALUES(%s %s)' ,row)
mydb.commit()
cursor.close()
You didn't specify a comma between %s and %s. Change it to:
cursor.execute('INSERT INTO actors(name,age) VALUES(%s, %s)' ,row)
and try..
What is wrong below?
import MySQLdb as mysql
import datetime
db = mysql.connect("localhost","root","passworld","employees" )
cursor = db.cursor()
sql = "INSERT INTO employee(id, firstname, surname, sex, employmentdate) VALUES (%s, %s, %s, %s, '%s')" %(id, firstname, surname, sex, employmentdate)
dater = datetime.datetime(2005,1,1)
cursor.execute(["012345","Mark", "Rooney", "M", dater])
OperationalError: (1054, "Unknown column 'Mark' in 'field list'")
You should pass your sql statement and params to cursor.execute():
sql = "INSERT INTO employee(id, firstname, surname, sex, employmentdate) VALUES (%s, %s, %s, %s, '%s')"
cursor.execute(sql, ["012345","Mark", "Rooney", "M", dater])
db.commit()