tsql.tar.gz

T-SQL-SPA

T-SQL is a dialect of SQL that is used in Microsoft SQL Server. The popularity of Microsoft's database management system sustains high market demand for people well versed in T-SQL. 

This course teaches the core concepts and syntax of T-SQL. First, you will learn how to create tables, insert data, update existing records, and create relationships between tables. Then, you will be exposed to more advanced constructs of T-SQL, like stored procedures, functions, and triggers. 

By the end of the course, you will be sufficiently adept with T-SQL and be able to perform your day-to-day tasks as software and database developers effectively.

Querying Databases Using Transact-SQL

There is no use in having data if we cannot view it and work with it. We can use the `SELECT` command to retrieve data from tables in a database. Just like with inserting, there are several ways we can use this command.

## Retrieve data from all columns

To retrieve all columns, we use this syntax:


```SQL
SELECT * FROM TableSchema.TableName;
```


Let's create the `dbo.Students` table, insert some data, and retrieve it afterward:

There is no use in having data if we cannot view it and work with it. We can use the `SELECT` command to retrieve data from tables in a database. Just like with inserting, there are several ways we can use this command.

# Retrieve data from all columns

To retrieve all columns, we use this syntax:


```SQL
SELECT * FROM TableSchema.TableName;
```


Let's create the `dbo.Students` table, insert some data, and retrieve it afterward:

Learn to extract data from database tables using SELECT.


Retrieving Data from Tables

Learn to extract data from database tables using SELECT.

Before We Start

T-SQL Basics

Querying Multiple Tables

Grouping and Aggregation

Subqueries

T-SQL Fundamentals Assessment

Built-in Functions

T-SQL Programming Basics

Additional Programming Constructs

Course Comprehension Assessment

Conclusion

Retrieving Data from Tables

Retrieve data from all columns