Oracle Database Associate (OCA)
Oracle Database SQL | 1Z0-071
Using Structured Query Language (SQL)
• Explain the relationship between a database and SQL
Using Data Manipulation Language (DML) and Transaction Control Language (TCL
• Describe the purpose of DML
• Use DML to manage data in tables
• Use TCL to manage transactions
Using Basic SELECT statements
• Build a SELECT statement to retrieve data from an Oracle Database table
• Use the WHERE clause to the SELECT statement to filter query results
Defining Table Joins
• Describe the different types of joins and their features
• Use joins to retrieve data from multiple tables
• Use self joins
Using Conversion Functions and Conditional Expressions
• Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions
• Apply general functions and conditional expressions in a SELECT statement
Displaying Data from Multiple Tables
• Use 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
Using the Set Operators
• Use a set operator to combine multiple queries into a single query
• Control the order of rows returned
Using DDL Statements to Create and Manage Tables
• Describe data types that are available for columns
• Create a simple table
• Create constraints for tables
• Describe how schema objects work
• Execute a basic SELECT statement
Managing Objects with Data Dictionary Views
• Use the data dictionary views to research data on objects
• Query various data dictionary views
Managing Schema Objects
• Manage constraints
• Create and maintain indexes including invisible indexes and multiple indexes on the same columns
• Drop columns and set column UNUSED
• Perform flashback operations
• Create and use external tables
Using Data Definition Language (DDL)
• Describe the purpose of DDL
• Use DDL to manage tables and their relationships
• Explain the theoretical and physical aspects of a relational database
Defining SELECT Statements
• Identify the connection between an ERD and a database using SQL SELECT statements
Restricting and Sorting Data
• Use the ORDER BY clause to sort SQL query results
• 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
• Use various types of functions available in SQL
• Use conversion functions
• Use character, number, and date and analytical (PERCENTILE_CONT, STDDEV, LAG, LEAD) functions in SELECT statements
Manipulating Data
• Insert rows into a table
• Update rows in a table
• Delete rows from a table
• Control transactions
Controlling User Access
• Differentiate system privileges from object privileges
• Grant privileges on tables and on a user
• Distinguish between privileges and roles
Manipulating Large Data Sets
• Describe the features of multitable INSERTs
• Merge rows in a table