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Monday 11 October 2021

Python with mysql insert records sql videos in telugu 72

 https://youtu.be/xWe3JCIvgXY

-----------------------------------------
import mysql.connector

mydb = mysql.connector.connect(
  host="localhost",
  user="root",
  password="ram1234",
  database="ramesh"
)

mycursor = mydb.cursor()

mycursor.execute("SELECT * FROM customers")

myresult = mycursor.fetchall()

for x in myresult:
  print(x)
-----------------
import mysql.connector

mydb = mysql.connector.connect(
  host="localhost",
  user="root",
  password="ram1234",
  database="ramesh"
)

mycursor = mydb.cursor()

mycursor.execute("SELECT name, address FROM customers")

myresult = mycursor.fetchall()

for x in myresult:
  print(x)
---------------------
Using the fetchone() Method
If you are only interested in one row, you can use the fetchone() method.

The fetchone() method will return the first row of the result:

import mysql.connector

mydb = mysql.connector.connect(
  host="localhost",
  user="root",
  password="ram1234",
  database="ramesh"
)

mycursor = mydb.cursor()

mycursor.execute("SELECT * FROM customers")

myresult = mycursor.fetchone()

print(myresult)
------------
import mysql.connector

mydb = mysql.connector.connect(
  host="localhost",
  user="root",
  password="ram1234",
  database="ramesh"
)

mycursor = mydb.cursor()

sql = "SELECT * FROM customers WHERE address LIKE '%way%'"

mycursor.execute(sql)

myresult = mycursor.fetchall()

for x in myresult:
  print(x)
------------------------
import mysql.connector

mydb = mysql.connector.connect(
  host="localhost",
  user="root",
  password="ram1234",
  database="ramesh"
)

mycursor = mydb.cursor()

sql = "SELECT * FROM customers ORDER BY name DESC"

mycursor.execute(sql)

myresult = mycursor.fetchall()

for x in myresult:
  print(x)
---------------------
import mysql.connector

mydb = mysql.connector.connect(
  host="localhost",
  user="root",
  password="ram1234",
  database="ramesh"
)

mycursor = mydb.cursor()

sql = "DELETE FROM customers WHERE name = 'ram1'"

mycursor.execute(sql)

mydb.commit()

print(mycursor.rowcount, "record(s) deleted")
------------
import mysql.connector

mydb = mysql.connector.connect(
  host="localhost",
  user="root",
  password="ram1234",
  database="ramesh"
)

mycursor = mydb.cursor()

sql = "DROP TABLE customers"

mycursor.execute(sql)
-------------------
import mysql.connector

mydb = mysql.connector.connect(
  host="localhost",
  user="root",
  password="ram1234",
  database="ramesh"
)

mycursor = mydb.cursor()

sql = "UPDATE customers SET address = 'Canyon 123' WHERE address = 'Valley 345'"

mycursor.execute(sql)

mydb.commit()

print(mycursor.rowcount, "record(s) affected")

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