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| Section | Weight | Objectives |
|---|---|---|
| Using Conversion Functions and Conditional Expressions | 10% | - Apply the NVL, NULLIF, and COALESCE functions to data - Use conditional IF THEN ELSE logic in a SELECT statement - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions - Describe implicit and explicit data type conversion |
| Using Subqueries to Solve Queries | 15% | - Describe the types of problems that subqueries can solve - List the types of subqueries - Define subqueries - Write single-row and multi-row subqueries |
| Displaying Data from Multiple Tables Using Joins | 15% | - Cross join tables - View data that does not meet a join condition by using outer joins - Join a table to itself by using a self-join - Write SELECT statements to access data from more than one table using equijoins and non-equijoins |
| Manipulating Data | 14% | - Describe each data manipulation language (DML) statement - Delete rows from a table - Insert rows into a table - Update rows in a table - Control transactions |
| Creating Other Schema Objects | 10% | - Create synonyms for database objects - Create and maintain indexes - Create, maintain, and use sequences - Create, modify, and retrieve data from a view |
| Restricting and Sorting Data | 6% | - Use ampersand substitution to restrict and sort output at runtime - Limit the rows that are retrieved by a query - Sort the rows that are retrieved by a query - Use DEFINE and UNDEFINE commands |
| Retrieving Data Using the SQL SELECT Statement | 5% | - List the capabilities of SQL SELECT statements - Execute a basic SELECT statement - Differentiate between SQL statements and SQL*Plus commands |
| Reporting Aggregated Data Using Group Functions | 15% | - Identify the available group functions - Include or exclude grouped rows by using the HAVING clause - Group data by using the GROUP BY clause - Describe the use of group functions |
| Using DDL Statements to Create and Manage Tables | 14% | - Categorize the main database objects - Drop, rename, and truncate tables - Describe the data types that are available for columns - Alter table definitions - Create a simple table - Review the table structure |
| Using Set Operators | 5% | - Use a set operator to combine multiple queries into a single query - Describe the order of precedence when the set operators are used - Describe set operators |
| Working with Oracle Database SQL | 8% | - Create a container database - Start up and shut down a database - Describe the Oracle Database architecture - Explain the installation of Oracle Database software |
| Using Single-Row Functions to Customize Output | 10% | - Perform arithmetic with date data - Manipulate dates with the date functions - Manipulate numbers with the ROUND, TRUNC, and MOD functions - Describe the differences between single-row and multiple-row functions - Manipulate strings with character function in the SELECT and WHERE clauses |
| Controlling User Access | 5% | - Differentiate system privileges from object privileges - Distinguish between granting privileges and roles - Grant privileges on tables and on a view |
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NEW QUESTION # 337
Examine the description of the countries table:
Examine the description of the departments table:
Examine the description of the locations table:
Which two queries will return a list of countries with no departments?
Answer: B,C
NEW QUESTION # 338
Examine the structure of the PROMOTIONS table: (Choose the best answer.)
Management requires a report of unique promotion costs in each promotion category.
Which query would satisfy this requirement?
Answer: D
NEW QUESTION # 339
What is the primary difference between the relational database (RDB) and object-oriented database (OODB) models?
Answer: D
NEW QUESTION # 340
You have the privileges to create any type of synonym.
Which statement will create a synonym called EMPfor the HCM.EMPLOYEE_RECORDS table that is accessible to all users?
Answer: D
Explanation:
CREATE PUBLIC SYNONYM emp_table
Reference: https://docs.oracle.com/database/121/SQLRF/statements_7001.htm#SQLRF01401
NEW QUESTION # 341
In which three situations does a new transaction always start?
Answer: B,C,F
NEW QUESTION # 342
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