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 ( column1 datatype [NULL […]

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: DDL describes a bunch of commands that CREATE Data Structures, like […]

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 products whose average order quantities are less […]

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 […]

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 […]

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 […]