Overview
This SQL training course is for people who want to gain the necessary skills to extract and analyse data using Microsoft Access. Course members will learn:
- how to write SQL queries
- what relational databases are and how we can use them
- what are relations and how to create them
- the structure of data
- differences between SQL dialects (Oracle, T-SQL, ANSI)
- practical skills for writing queries
This SQL course deals with Microsoft Access dialect of SQL.
Requirements
Basic computer skills.
Course Outline
RDBMS (Relational DataBase Management System)
Relational Operators
SQL as Declarative Language
SQL Syntax
SQL Sublanguages DQL, DML, DDL, DCL
DQL (Data Query Language) in Detail
- SELECT clause
- Column aliases
- Table aliases
- Date types and Date functions
- Group function
- Table joins
- JOIN clause
- UNION operator
- Nested queries
- Correlated subqueries
DML (Data Manipulation Language) Overview
- Inserting rows (INSERT)
- Inserting rows using subquery
- Updating rows (UPDATE)
- Deleting rows (DELETE)
DDL (Data Definition Language) Overview
- Creating, altering and dropping objects (CREATE, ALTER, DROP)
- Creating tables using subquery (CREATE TABLE …. AS SELECT…)
CONSTRAINTS Overview
- NULL i NOT NULL
- CONSTRAINT clause
- ENUM type
- SET type
- PRIMARY KEY
- UNIQUE
- FOREIGN KEY
- DEFAULT clause
Transactions Overview
- COMMIT
- ROLLBACK
- SAVEPOINT
- Implicit and explicit rollbacks and commits
SQL Dialects Overview
- MySQL
- Microsoft Access and SQL Server
- Oracle and PostgreSQL