Exam 1Z0-051: Oracle Database 11g – SQL Fundamentals I

Retrieving Data Using the SQL SELECT Statement

• List the capabilities of SQL SELECT statements
• Execute a basic SELECT statement

Restricting and Sorting Data

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

Using Single-Row Functions to Customize Output

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

Using Conversion Functions and Conditional Expressions

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

Reporting Aggregated Data Using the Group Functions

• Identify the available group functions
• Describe the use of group functions
• Group data by using the GROUP BY clause
• Include or exclude grouped rows by using the HAVING clause

Displaying Data from Multiple Tables

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

Using Subqueries to Solve Queries

• Define subqueries
• Describe the types of problems that the subqueries can solve
• List the types of subqueries
• Write single-row and multiple-row subqueries

Using the Set Operators

• Describe set operators
• Use a set operator to combine multiple queries into a single query
• Control the order of rows returned

Manipulating Data

• Describe each data manipulation language (DML) statement
• Insert rows into a table
• Update rows in a table
• Delete rows from a table
• Control transactions

Using DDL Statements to Create and Manage Tables

• Categorize the main database objects
• Review the table structure
• List the data types that are available for columns
• Create a simple table
• Explain how constraints are created at the time of table creation
• Describe how schema objects work

Creating Other Schema Objects

• Create simple and complex views
• Retrieve data from views
• Create, maintain, and use sequences
• Create and maintain indexes
• Create private and public synonyms