Querying Data with Transact-SQL

Unlock the power of data with SQL Server, a leading relational database management system (RDBMS) from Microsoft. This course dives into the fundamentals of SQL, the standard language for interacting with relational databases, and explores Transact-SQL (T-SQL), Microsoft's powerful implementation that adds unique features.

Understanding SQL: The Foundation of Database Interaction

SQL stands for Structured Query Language. It's the key to accessing and manipulating data stored in databases. Established as a standard by ANSI in 1986 and ISO in 1987, SQL provides a consistent way to communicate with various database systems.

What Can You Do with SQL?

With SQL, you can perform a wide range of operations on your data:

• Retrieve Data: Extract specific information from your database.
• Insert Data: Add new records to your tables.
• Update Data: Modify existing records.
• Delete Data: Remove records from your database.
• Database Management: Create new databases and tables.
• Stored Procedures: Develop reusable blocks of SQL code.
• Views: Create virtual tables based on queries.
• Permissions: Control access to tables, procedures, and views.

What We'll Explore in This Course

This course provides hands-on experience querying data from a sample database within Microsoft SQL Server using T-SQL. You'll learn essential SQL skills, including:

• Filtering Data: Select specific data based on defined criteria.
• Sorting Data: Arrange data in ascending or descending order.
• Aggregate Functions: Perform calculations on data sets (e.g., sum, average, count).

Mastering SQL Server and SQL is a crucial skill for anyone working with data. This course equips you with the knowledge to effectively manage and retrieve information from relational databases.