Advanced Data Analytics Using Python_ With Machine Learning, Deep Learning and NLP Examples ( 2023)

Chapter 2
ETL with Python (Structured Data)
except:
# Rollback in case there is any error
db.rollback()
# disconnect from server
db.close()
COMMIT Operation
The commit operation provides its assent to the database to finalize the
modifications, and after this operation, there is no way that this can be
reverted.
ROLL-BACK Operation
If you are not completely convinced about any of the modifications and you
want to reverse them, then you need to apply the roll-back() method.
The following is a complete example of accessing MySQL data through
Python. It will give the complete description of data stored in a CSV file or
MySQL database.
import MySQLdb
import sys
out = open('Config1.txt','w')
print "Enter the Data Source Type:"
print "1. MySql"
print "2. Text"
print "3. Exit"
while(1):
data1 = sys.stdin.readline().strip()
if(int(data1) == 1):
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