Not all parameters were used in the SQL statement (Python, MySQL)
Question:
I get an error on the following Python code:
import mysql.connector
cnx = mysql.connector.connect(user='root', password='',
host='127.0.0.1',
database='DB')
cursor = cnx.cursor()
Name = "James"
Department = "Finance"
StartYear = 2001
CurrentPos = 2001
Link = ""
add_user = ("INSERT INTO DB.tbluser "
"(username, department, startyear, currentpos, link) "
"VALUES (%s, %s, %d, %d, %s)")
data_user = (Name, Department, StartYear, CurrentPos, Link)
cursor.execute(add_user, data_user)
cnx.commit()
cursor.close()
cnx.close()
The error message is
mysql.connector.errors.ProgrammingError: Not all parameters were used in the SQL statement
Do you understand why?
Answers:
The parameter marker is %s
not %d
.
add_user = """INSERT INTO DB.tbluser
(username, department, startyear, currentpos, link)
VALUES (%s, %s, %s, %s, %s)"""
Note that the parameter markers used by mysql.connector
may look the same as the %s
used in Python string formatting but the relationship is only coincidental. Some database adapters like oursql
and sqlite3
use ?
as the parameter marker instead of %s
.
use single quotations
sql = 'insert into Student (id, fname, lname, school) values(%s, %s, %s , %s)'
values = (4, "Gaddafi", "Adamu", "Informatic")
a.execute(sql, values)
mydb.commit()
print(a.rowcount, "record inserted.")
add_user = ”'(“INSERT INTO DB.tbluser ”
“(username, department, startyear, currentpos, link) ”
“VALUES (%s, %s, %s, %s, %s)”)”’
=> you are using multi line statement so use triple single quotation marks here
and use %s to represent passing value as string then that will works because %d is not supported by mysql to pass value
Ok here is my solution:
the %d’s need to be %s’s
the ”’ works for multiple lines so does a +" at the start of a line and a " at the end
but that is not this issue here
I find sometimes the cursor.execute(query, values) or in your case the cursor.execute(add_user, data_user) buggy sometimes.. so I attach the values directly to the query.
You do this by first moving your data_user above the add_user. Then you add %values at the end of the query string (in your case %data_user). This will allow you to preform a nice little print(add_user) before the cursor.exec(add_user) command to look for other bugs.
import mysql.connector
cnx = mysql.connector.connect(
user='root',
password='',
host='127.0.0.1',
database='DB')
cursor = cnx.cursor()
Name = "James"
Department = "Finance"
StartYear = 2001
CurrentPos = 2001
Link = ""
data_user = (Name, Department, StartYear, CurrentPos, Link)
add_user = '''(INSERT INTO DB.tbluser
(username, department, startyear, currentpos, link)
VALUES (%s, %s, %s, %s, %s))'''%data_user
cursor.execute(add_user)
cnx.commit()
cursor.close()
cnx.close()
import mysql.connector
def login(self,name,password):
db = mysql.connector.connect(host="localhost",user="root",passwd="Cyber@123",database="mydata")
if(db):
print("connection successfull")
else:
print("faild")
query = db.cursor()
syntext = """insert into login(use_name,psd) values(%s,%s)"""
value = (name,password)
query.execute(syntext,value)
db.commit()
I get an error on the following Python code:
import mysql.connector
cnx = mysql.connector.connect(user='root', password='',
host='127.0.0.1',
database='DB')
cursor = cnx.cursor()
Name = "James"
Department = "Finance"
StartYear = 2001
CurrentPos = 2001
Link = ""
add_user = ("INSERT INTO DB.tbluser "
"(username, department, startyear, currentpos, link) "
"VALUES (%s, %s, %d, %d, %s)")
data_user = (Name, Department, StartYear, CurrentPos, Link)
cursor.execute(add_user, data_user)
cnx.commit()
cursor.close()
cnx.close()
The error message is
mysql.connector.errors.ProgrammingError: Not all parameters were used in the SQL statement
Do you understand why?
The parameter marker is %s
not %d
.
add_user = """INSERT INTO DB.tbluser
(username, department, startyear, currentpos, link)
VALUES (%s, %s, %s, %s, %s)"""
Note that the parameter markers used by mysql.connector
may look the same as the %s
used in Python string formatting but the relationship is only coincidental. Some database adapters like oursql
and sqlite3
use ?
as the parameter marker instead of %s
.
use single quotations
sql = 'insert into Student (id, fname, lname, school) values(%s, %s, %s , %s)'
values = (4, "Gaddafi", "Adamu", "Informatic")
a.execute(sql, values)
mydb.commit()
print(a.rowcount, "record inserted.")
add_user = ”'(“INSERT INTO DB.tbluser ”
“(username, department, startyear, currentpos, link) ”
“VALUES (%s, %s, %s, %s, %s)”)”’
=> you are using multi line statement so use triple single quotation marks here
and use %s to represent passing value as string then that will works because %d is not supported by mysql to pass value
Ok here is my solution:
the %d’s need to be %s’s
the ”’ works for multiple lines so does a +" at the start of a line and a " at the end
but that is not this issue here
I find sometimes the cursor.execute(query, values) or in your case the cursor.execute(add_user, data_user) buggy sometimes.. so I attach the values directly to the query.
You do this by first moving your data_user above the add_user. Then you add %values at the end of the query string (in your case %data_user). This will allow you to preform a nice little print(add_user) before the cursor.exec(add_user) command to look for other bugs.
import mysql.connector
cnx = mysql.connector.connect(
user='root',
password='',
host='127.0.0.1',
database='DB')
cursor = cnx.cursor()
Name = "James"
Department = "Finance"
StartYear = 2001
CurrentPos = 2001
Link = ""
data_user = (Name, Department, StartYear, CurrentPos, Link)
add_user = '''(INSERT INTO DB.tbluser
(username, department, startyear, currentpos, link)
VALUES (%s, %s, %s, %s, %s))'''%data_user
cursor.execute(add_user)
cnx.commit()
cursor.close()
cnx.close()
import mysql.connector
def login(self,name,password):
db = mysql.connector.connect(host="localhost",user="root",passwd="Cyber@123",database="mydata")
if(db):
print("connection successfull")
else:
print("faild")
query = db.cursor()
syntext = """insert into login(use_name,psd) values(%s,%s)"""
value = (name,password)
query.execute(syntext,value)
db.commit()