Oracle Database 19c: Introduction to SQL Training

This course teaches you how to write subqueries, combine multiple queries using SET operators, and report aggregated data with group functions. Gain these skills and more through practical, hands-on exercises.

 What You Will Learn:

– Grasp the fundamentals of relational databases to help developers write optimized code.

– Create reports from sorted and filtered data.

– Execute Data Manipulation Language (DML) statements.

– Control database access to specific objects.

– Manage and modify schema objects using data dictionary views.

– Retrieve row and column data from tables efficiently.

– Control privileges at both object and system levels.

– Create indexes and constraints, and alter schema objects as needed.

– Create and query external tables.

 Benefits to You:

This course will equip you with the skills to ensure fast, reliable, secure, and easily manageable database performance. You’ll be able to optimize database workloads, reduce IT costs, and enhance service quality through consolidation onto database clouds.

 Learn Advanced SQL Features:

Delve into advanced SQL features, including how to query and manipulate data, retrieve metadata using dictionary views, and generate reports on schema objects. You’ll also learn to work with date-time functions and use regular expressions in SQL.

 Development Tools:

The course primarily uses Oracle SQL Developer as the development tool, with SQL*Plus available as an optional tool. This training is suitable for users of Oracle 10g, 11g, and 12c,18c,19c,23ai.

Course Curriculum:

Introduction

• Course Objectives, Course Agenda and Appendixes Used in this Course
• Overview of Oracle Database 12c and Related Products
• Overview of relational database management concepts and terminologies
• Introduction to SQL and its development environments
• What is Oracle SQL Developer?
• Starting SQL*Plus from Oracle SQL Developer
• The Human Resource (HR) Schema
• Tables used in the Course

Retrieving Data using the SQL SELECT Statement

• Capabilities of the SELECT statement
• Arithmetic expressions and NULL values in the SELECT statement
• Column aliases
• Use of concatenation operator, literal character strings, alternative quote operator, and the DISTINCT keyword
• Use of the DESCRIBE command

Restricting and Sorting Data

• Limiting the Rows
• Rules of precedence for operators in an expression
• Substitution Variables
• Using the DEFINE and VERIFY command

Using Single-Row Functions to Customize Output

• Describe the differences between single row and multiple row functions
• Manipulate strings with character function in the SELECT and WHERE clauses
• Manipulate numbers with the ROUND, TRUNC and MOD functions
• Perform arithmetic with date data
• Manipulate dates with the date functions

Using Conversion Functions and Conditional Expressions

• Describe implicit and explicit data type conversion
• Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions
• Nest multiple functions
• Apply the NVL, NULLIF, and COALESCE functions to data
• Use conditional IF THEN ELSE logic in a SELECT statement

Reporting Aggregated Data Using the Group Functions

• Group Functions
• Creating Groups of Data
• Restricting Group Results

Displaying Data from Multiple Tables Using Joins

• Introduction to JOINS
• Types of Joins
• Natural join
• Self-join
• Non equijoins
• OUTER join

Using Subqueries to Solve Queries

• Introduction to Subqueries
• Single Row Subqueries
• Multiple Row Subqueries

Using the SET Operators

• Set Operators
• UNION and UNION ALL operator
• INTERSECT operator
• MINUS operator
• Matching the SELECT statements
• Using ORDER BY clause in set operations

Managing Tables using DML statements

• Data Manipulation Language
• Database Transactions

Introduction to Data Definition Language

• Data Definition Language

Introduction to Data Dictionary Views

• Introduction to Data Dictionary
• Describe the Data Dictionary Structure
• Using the Data Dictionary views
• Querying the Data Dictionary Views

Creating Sequences, Synonyms, Indexes

• Overview of sequences
• Overview of synonyms
• Overview of indexes

Creating Views

• Overview of views

Managing Schema Objects

• Managing constraints
• Creating and using temporary tables
• Creating and using external tables

Retrieving Data by Using Subqueries

• Retrieving Data by Using a Subquery as Source
• Working with Multiple-Column subqueries
• Using Scalar subqueries in SQL
• Correlated Subqueries
• Working with the WITH clause

Manipulating Data by Using Subqueries

• Using Subqueries to Manipulate Data
• Inserting by Using a Subquery as a Target
• Using the WITH CHECK OPTION Keyword on DML Statements
• Using Correlated Subqueries to Update and Delete rows

Controlling User Access

• System privileges
• Creating a role
• Object privileges
• Revoking object privileges

Manipulating Data

• Overview of the Explicit Default Feature
• Using multitable INSERTs
• Using the MERGE statement
• Performing flashback operations
• Tracking Changes in Data

Managing Data in Different Time Zones

• Working with CURRENT_DATE, CURRENT_TIMESTAMP,and LOCALTIMESTAMP
• Working with INTERVAL data types