SQL With Python | Python Database Connectivity Tutorial | SQL Tutorial For Beginners | Simplilearn
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- Опубликовано: 27 июл 2024
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This video on SQL with Python will help you understand Python database connectivity. You will learn to connect a MySQL database with Python Jupyter Notebook. You will see how to write user-defined functions to create server connection, create a database and execute queries. In this SQL tutorial for beginners video, we'll explore some of the most crucial SQL commands using Python programming.
00:00:00 Introduction to SQL With Python
00:01:22 Import Libraries to Jupyter Notebook
00:02:13 Define Server Connection in Jupyter Notebook
00:07:45 Create MySQL Python
00:12:50 Verify connection
00:13:19 Connect Database
00:16:35 Execute SQL Queries
00:19:07 Create Database
00:24:54 Insert Records in Database
00:28:38 Read Queries and Display Results
00:30:30 DDL and DML Commands (SELECT / HAVING / WHERE / ORDER / UPDATE / DELETE / GROUP BY)
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What is SQL?
SQL is a Structured Query Language to communicate with relational databases. Some of the popular databases available are MySQL, Oracle, MS SQL Server, and PostgreSQL. Using SQL with Python, you can store, retrieve, update, delete and manipulate data. You can permit users to perform specific tasks on tables, procedures, and views.
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You could explain behind the scene mechanisms rather than reading everything you type like wat is not null, why were the arguments passed inside the connectors etc... still gave u a thumbs up for some of the new info I got from the video
If I know how to use SAS SQL to manipulate dataset, is there a way to run the SAS code through Python? (so that I can save some time by not learning Python data manipulation code)?
Thanks for the information
Hope you enjoyed our video! We have a ton more videos like this on our channel. We hope you will join our community!
Thank you so much for giving fulfilled information about MySQL Using Python
Thanks Again....
Happy to help
how to connect the sql workbench and jupyter note book
Error: 'Authentication plugin 'caching_sha2_password' is not supported '
I'm getting this error at @7:54
how to write a connection for SQL and i have fixed my sql on window Authentication . Please guide me to write a code to connect my SQL with Jupyter
first again? also i like python
Yes you are!
No way...
I'm the one yeah...
Not you...
Hello there
Hi, Simplilearn provides online training across the world. We would be happy to help you regarding this. Please visit us at www.simplilearn.com and drop us a query and we will get back to you! Thanks!
On minutes 7:57 i got this error message ~ Error: '1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)' ~
"Hi,
Please check this link to resolve the issue stackoverflow.com/questions/21944936/error-1045-28000-access-denied-for-user-rootlocalhost-using-password-y"
12:45 when I run it I get this:
cursor = connection.cursor()
AttributeError: 'NoneType' object has no attribute 'cursor'
I fixed it. The problem was simple. I put all these functions that are meant to be run seperately in one .py file, and when I run it, All functions are run. When that happens, it goes over "connection=None" And that messes up the functions after it. Hence the Error NoneType attribute.
Here's how I wrote the code for it to work in 1 .py file:
import mysql.connector
from mysql.connector import Error
import pandas as pd
##################### SQL #######################
# MAKE SURE PASSWORD IS CORRECT ON LINE "connection = mysql.connector.....
connection = None
try:
connection = mysql.connector.connect(host="localhost", user="root", passwd="root")
except Error as err:
print(f"Error: '{err}'")
# Create 'studentdb.db'
def create_database(connection, query):
cursor = connection.cursor()
try:
cursor.execute(query)
print("Database created successfully")
except Error as err:
print(f"Error: '{err}'")
create_database_query = "Create database studentdb"
create_database(connection, create_database_query)
#=========================AFTER CONNECTION HAS BEEN MADE AND studentdb.db IS CREATED, The database can be used========================
#Connect to studentdb.db
try:
connection = mysql.connector.connect(host="localhost", user="root", passwd="852122", database="studentdb")
print("MySQL database connection established")
except Error as err:
print(f"Error: '{err}'")
cursor = connection.cursor()
sql_queries = """
# PUT SQL QUERY HERE
'""
cursor.execute(sql_queries)
can u provide source code page?
With all due respect, your typing is really irritating to follow, almost no word is written in one chance . But the video is good.
Thank you for bringing this to our attention. We’re sorry you had a bad experience. We’ll strive to do better
ITS NOT BLOODY WORKING -- "Authentication plugin '{0}' is not supported".format(plugin_name))
mysql.connector.errors.NotSupportedError: Authentication plugin 'caching_sha2_password' is not supported