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Happy Weekend To You All

Happy Weekend To You All From The DataPandas Team :)

Create Oracle Database Table and Specify Some Constraints

The following are the main constraints which can be defined when you are creating a TABLE. I will be using the ORACLE DBMS . Primary key – The primary key of the table to be created. Foreign key – The primary key of some other table which is being referenced in this table to be created. (The other table should already exist with the column being referenced before calling it in this creation…

How To Track The Effectiveness of Email Campaign – Some Points to Consider

Sometimes, you would want to track the effectiveness of your email marketing campaign. How do you start ? What do you look out for ? and What are some of the key things to consider. This lists some key things to look out for when tracking the effectiveness if your email campaigns Get access Access to email service provider which you use to send your emails and start looking into their analytics…

Quick Example and Walk-Through JSON with Python

This is a quick to create a dictionary object , write it to a JSON file and then read back the file and convert it to a dictionary and access the items in the dictionary. Credit to : codebasics.  You can check him out on Youtube In [3]: # lets create a dictionary of books book = {} book['Tom'] = { 'name':'Tom', 'address':'1 red street, NY', 'phone':98988988 } book['Bob'] = { 'name':'Bob',…

Using Subqueries To Join 2 More Tables Which Do Not Have Unique Primary and Foreign Keys

Using Subqueries to join 2 more tables which do not have distinct values in a column We want to find the number of Flight bookings by Country, number of Car bookings by Country and the number of Hotel bookings by Country all appearing in one table with same country on one row. We want to join the country field from all the 3 tables. Flight table, CarHire table, and Hotel Booking table We will use…

Rank a Place Visited By a Customer- Microsoft SQL Server – T-Transact

This is a short guide to getting ranking or rating from Microsoft Sql Server customers. Ranking is taken by checking how many times a customer has visited a particular country divided by the total number of travels the customer has made within the database   /*make a back up of the recommender rankings table*/ truncate table antrak.dbo.recommender_rankings_copy insert into…

Automatically Open Excel and Send Report Using Batch and VBA

  We can use Visual Basic codes to automate some reports in Excel. Below are some simple codes to do this. First this is a batch file to open our Excel report called “data report.xlsm”, assuming the report file is in the same folder as the batch file. You can schedule the time this batch file is called using Windows Scheduler . @echo off set excel_program=C:\Program Files\Microsoft…

Splitting Values in one Column to Multiple Columns using CASE Expression Statement SQL Server

Sometimes, you would want to split values in a column into separate rows  in SQL server.  This is a simple guide. Lets check the fields in the table we will be working with. select [orderID] ,[itemType] ,[price] ,[quantity] from [Antrak].[dbo].[ClothingSale] Let’s check the result:   We can see that the itemType field has different values wheres as the price and quantity all have the same values.…

Decision Tree Price Optimisation – Regression Tree

Price Optimisation can be achieved in several ways. I did a simple analysis of how you can use Decision Tree to price optimise a product. This article was published on Data Science Central which can be fully read here: Price Optimisation Using Decision Tree (Regression Tree) – Machine Learning   I  have received a lot of requests for the data set which was used for the Analysis and here I share…