Create

10 – TSQL Create Table Statement

Hi! Today I learned about the Create Table statement, it allows you to create and define tables, as what I studied on the last episode, it is a DDL statement (Data Definition Language). CREATE TABLE The syntax for this statement in SQL Server (TSQL) id: CREATE TABLE table_name (...
Concepts

9 – Learning DDL and DML concepts

Hello there! Learning about DDL and DML concepts is a fundamental foundation for becoming a Data Wrangling and Data Warehousing extraordinaire.  SQL statements are divided into two major categories: Data Definition Language (DDL) and Data Manipulation Language (DML).  In Short:...

8.2 – TSQL Having and Union command

Today I kept studying about TSQL (Having and Union command). I also finished the TSQL tutorial from Microsoft that Luis sent me. HAVING clause The first example shows a HAVING clause with an aggregate function. It groups the SalesOrderDetail rows by product ID and eliminates...
TSQL

8.1 – TSQL command (Group By)

In the last episode you saw that I studied TSQL for the new project, today I had some issues with the machine, connection, permissions and SQL Server. Now everything is well set up and I could keep studying some TSQL! The command that I studied today was Group By, it is used in...
TSQL

7 – TSQL for a new project

A new project is coming around and I will help with some Business Intelligence tasks. Today I started to study TSQL for this new project, the idea is to get the basics and some concepts about it and during the work I’ll improve this knowledge. The next step is to learn the...
TSQL

6 – Learning TSQL basics concepts

Next step is a big progress, it is about learning TSQL basics, basically if you learn this concept and the most common commands that we are going to see here, you can do a lot of work in SQL database and you can improve this knowledge so much faster. TSQL (short for Transact SQL)...

5 – Learning more DAX Commands

In my journey of learning Data Warehouse, I kept learning about DAX, I tried to find some useful DAX commands that can help you day by day. The commands that worked out are: SUMX, SUM IF FILTER RANKX ALL   I used a Portuguese reference to learn about it, so I will explain...

4 – Learning about DAX basics

Today I started learning about DAX basics and how it works on Power Pivot. Here is a basic and simple concept about it. Data Analysis Expressions (DAX) is a collection of functions, operators, and constants that can be used in a formula, or expression, to calculate and return one...

3 – Microsoft Access using Star Schema

To consolidate the knowledge during the journey to learn data warehouse I spent time learning about Microsoft Access using Star Schema, an essential point is to create a database by yourself, create relationship between tables, connect to Power Pivot and see what could happen....

2 – Connecting to external database

An important step when you are learning Data Warehouse is connecting to external database. You can import data from many data sources, including relational databases, multidimensional sources, data feeds, and text files. The real power of this broad data-source support is that...
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