Introduction to SQL

Description

Intro to SQL training course description

A hands on course focusing on the use of SQL. In particular this course does not concentrate on any particular version of SQL but rather enables delegates to recognise the differences found in SQL on different platforms.

What will you learn

• Explain the difference between standard SQL and different flavours.
• Use SQL statements to query databases.
• Use SQL statements to define databases.

Intro to SQL training course details

Intro to SQL training course contents

• What is SQL?

What is SQL? History, standards, What is SQL used for? Dialects, ANSI SQL, PL/SQL, Transact SQL, front ends.

• Database basics

RDBMS, Tables.
Hands on Investigating a database.

• Basic SQL commands

SQL Overview: SQL DML, SQL DDL, SQL queries. SELECT, WHERE and ORDER BY clauses. Combining conditions. IN, LIKE and BETWEEN.
Hands on Querying a database from existing tables.

• SQL data retrieval

Scalar functions.
Hands on Selecting data from an existing database.

• More SQL data retrieval

Scalar functions, variations. Aggregate functions, GROUP BY. HAVING.
Hands on Selecting data from an existing database.

• Table joins

Multiple tables, joins, keys, inner joins, left joins, right joins.
Hands on Selecting data from an existing database.

• SQL basic data manipulation

INSERT, UPDATE, MERGE, DELETE. Transaction controls: COMMIT, ROLLBACK.
Hands on Modifying data in tables.

• SQL Data Definition

USE, CREATE, DROP, TRUNCATE, ALTER.
Hands on Managing new tables and columns.

• Data control

GRANT, REVOKE.
Hands on Defining permissions.