oracle_sql_12c.md

Exam Structure

Introduction

1. Describe the features of Oracle Database 12c
2. Describe the salient features of Oracle Cloud 12c
3. Explain the theoretical and physical aspects of a relational database
4. Describe Oracle server’s implementation of RDBMS and object relational database management system (ORDBMS)

Retrieving Data using the SQL SELECT Statement

1. Explain the capabilities of SQL SELECT statements
2. Execute a basic SELECT statement

Restricting and Sorting Data

1. Limit the rows that are retrieved by a query
2. Sort the rows that are retrieved by a query
3. Use ampersand substitution to restrict and sort output at runtime

Using Single-Row Functions to Customize Output

1. Describe various types of functions available in SQL
2. Use character, number, and date functions in SELECT statements

Using Conversion Functions and Conditional Expressions

1. Describe various types of conversion functions that are available in SQL
2. Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions
3. Apply conditional expressions in a SELECT statement

Reporting Aggregated Data Using the Group Functions

1. Identify the available group functions
2. Describe the use of group functions
3. Group data by using the GROUP BY clause
4. Include or exclude grouped rows by using the HAVING clause

Displaying Data From Multiple Tables Using Joins

1. Write SELECT statements to access data from more than one table using equijoins and nonequijoins
2. Join a table to itself by using a self-join
3. View data that generally does not meet a join condition by using OUTER joins
4. Generate a Cartesian product of all rows from two or more tables

Using Subqueries to Solve Queries

1. Define subqueries
2. Describe the types of problems that the subqueries can solve
3. Describe the types of subqueries
4. Write single-row and multiple-row subqueries
5. Using the SET Operators
6. Describe set operators
7. Use a set operator to combine multiple queries into a single query
8. Control the order of rows returned

Managing Tables using DML statements

1. Truncate data
2. Insert rows into a table
3. Update rows in a table
4. Delete rows from a table
5. Control transactions

Introduction to Data Definition Language

1. Categorize the main database objects
2. Explain the table structure
3. Describe the data types that are available for columns
4. Create a simple table
5. Explain how constraints are created at the time of table creation
6. Describe how schema objects work