Create Logs-Analysis.py

Author: bcko

Logs-Analysis.py

@@ -7,43 +7,54 @@
 import psycopg2 
 
 def main():  
+  # Connect to an existing database
+  conn = psycopg2.connect("dbname=news")
+  
+  # Open a cursor to perform database operations
+  cur = conn.cursor()
 
+  # Question 1
   sql_popular_articles = """ 
-    SELECT * 
+    SELECT article_view.title, article_view.view
     FROM article_view 
     ORDER BY article_view.view DESC
     LIMIT 3;
   """
+  cur.execute(sql_popular_articles)
+  print("Most popular articles:")
+  for (title, view) in cur.fetchall():
+    print("    {} - {} views".format(title, view))
+  print("-" * 70)
 
+  
+  # Question 2
   sql_popular_authors = """
     SELECT article_view.name, SUM(article_view.view) AS author_view
     FROM article_view
     GROUP BY article_view.name
     ORDER BY author_view DESC
     LIMIT 1;
   """
+  cur.execute(sql_popular_authors)
+  print("Most popular authors:")
+  for (name, view) in cur.fetchall():
+    print("    {} - {} views".format(name, view))
+  print("-" * 70)
 
+  # Question 3
   sql_more_than_one_percent_errors = """
     SELECT *
     FROM error_rate
     WHERE error_rate.percentage > 1
     ORDER BY error_rate.percentage DESC;
   """
-  
-  # Connect to an existing database
-  conn = psycopg2.connect("dbname=news")
-  
-  # Open a cursor to perform database operations
-  cur = conn.cursor()
-  
-  
+  cur.execute(sql_more_than_one_percent_errors)
+  print("Days with more than 1% errors:")
+  for (date, percentage) in cur.fetchall():
+    print("    {} - {}% errors".format(date, percentage))
+  print("-" * 70)
 
 
- 
-
-  
-  
-  
   # Close communication with the database
   cur.close()
   conn.close()