What is a Function?
What is a SQL Function and how to use a function in a T-SQL statement? We use the GetDate() and LEFT() functions as examples.
MCT
Using Aggregate Functions
How to use the COUNT, MAX, AVG, and SUM Aggregate Functions in a T-SQL statement.
NULL Values and Aggregate Functions
How to work with NULL values in Aggregate Functions in a T-SQL statement. How to fix issues with NULL values with the AVG() and COUNT() functions.
SQL COALESCE Function
The SQL Coalesce function is used when you want to combine values from a series of columns or expressions when they might contain NULL values.
Working with Batches
Working with Batches in SQL Server, What are the differences between batches and transactions?
Data Manipulation Language (DML)
What is the data manipulation language (DML)? How to write the INSERT, UPDATE, and DELETE statements in T-SQL.
Using the INSERT Statement
How to use an INSERT statement to add records to a table in SQL Server. We will begin with just a simple INSERT statement that will add one row into the table.
Delete vs Truncate vs Drop
What is the difference between the DELETE, TRUNCATE, and DROP statements in T-SQL?
DML Triggers
Working with Triggers in SQL Server. How to use triggers for data manipulation statements (DML) like INSERT, UPDATE, and DELETE.
The OUTPUT Clause
How to use the output clause with Data Manipulation Language (DML) statements like INSERT, UPDATE, and DELETE.