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

Chapter 2
ETL with Python (Structured Data)
# Execute the SQL command
cursor.execute(sql)
# Fetch all the rows in a list of lists.
results = cursor.fetchall()
for row in results:
fname = row[0]
lname = row[1]
id = row[2]
# Now print fetched result
print "name=%s,surname=%s,id=%d" % \
(fname, lname, id )
except:
print "Error: unable to fecth data"
# disconnect from server
db.close()
DELETE Operation
The following code deletes a row from TEST with id=1:
#!/usr/bin/python
import MySQLdb
# Open database connection
db = MySQLdb.connect("localhost","test","passwd","TEST" )
# prepare a cursor object using cursor() method
cursor = db.cursor()
# Prepare SQL query to DELETE required records
sql = "DELETE FROM STUDENT WHERE ROLL_NO =1"
try:
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