Blog – Page 5 – DataPandas

Happy Weekend To You All

Happy Weekend To You All From The DataPandas Team 🙂

November 26, 2016 No Comments

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

November 26, 2016 No Comments

Data Warehousing

Websites to Learn and Practice SQL for Free

You can practise SQL live online for Free. Here are a list of some websites in no particular order. Oracle Live SQL. This site also has lots of examples and tutorials which you can see the codes right there and then SQL Fiddle: You can practise various SQL by major players here as well. w3schools:

November 23, 2016 No Comments

The Big Data Landscape Diagram 2016 – Version

November 20, 2016 No Comments

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

November 16, 2016 No Comments

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

November 13, 2016 No Comments

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

November 12, 2016 No Comments

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

November 9, 2016 No Comments

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

November 6, 2016 No Comments

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

November 3, 2016 No Comments