Gain insights into T-SQL syntax, table creation, data manipulation, and relationships. Delve into advanced constructs like stored procedures, functions, and triggers to enhance your database development skills.

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

In T-SQL, a `SELECT` query can be reused multiple times without having to write it down on every occasion. We can save a `SELECT` query for future use as a view.

**Views** can be thought of as virtual tables. But unlike tables, when we select from a view, a `SELECT` query that was saved as the view is executed to retrieve the data dynamically.

## Syntax

To create a view, we use the `CREATE VIEW` command:

```SQL
CREATE VIEW ViewName
AS
[SELECT query];
```

We use a view like we would use a regular table:

```SQL
SELECT * FROM ViewName;
```

As soon as we select from a view, the inner `SELECT` query is executed, and data is retrieved.

## Using a view

Let’s consider this table with student names and grades.

In T-SQL, a `SELECT` query can be reused multiple times without having to write it down on every occasion. We can save a `SELECT` query for future use as a view.

**Views** can be thought of as virtual tables. But unlike tables, when we select from a view, a `SELECT` query that was saved as the view is executed to retrieve the data dynamically.

# Syntax

To create a view, we use the `CREATE VIEW` command:

```SQL
CREATE VIEW ViewName
AS
[SELECT query];
```

We use a view like we would use a regular table:

```SQL
SELECT * FROM ViewName;
```

As soon as we select from a view, the inner `SELECT` query is executed, and data is retrieved.

# Using a view

Let’s consider this table with student names and grades.

Learn how to create and use views in T-SQL.

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

Views

Syntax