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| Section | Weight | Objectives |
|---|---|---|
| Using Conversion Functions and Conditional Expressions | 10% | - Use conditional IF THEN ELSE logic in a SELECT statement - Apply the NVL, NULLIF, and COALESCE functions to data - Describe implicit and explicit data type conversion - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions |
| Restricting and Sorting Data | 6% | - Use DEFINE and UNDEFINE commands - Limit the rows that are retrieved by a query - Use ampersand substitution to restrict and sort output at runtime - Sort the rows that are retrieved by a query |
| Using Subqueries to Solve Queries | 15% | - List the types of subqueries - Describe the types of problems that subqueries can solve - Write single-row and multi-row subqueries - Define subqueries |
| Creating Other Schema Objects | 10% | - Create, maintain, and use sequences - Create and maintain indexes - Create, modify, and retrieve data from a view - Create synonyms for database objects |
| Reporting Aggregated Data Using Group Functions | 15% | - Identify the available group functions - Group data by using the GROUP BY clause - Include or exclude grouped rows by using the HAVING clause - Describe the use of group functions |
| 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 |
| Working with Oracle Database SQL | 8% | - Create a container database - Describe the Oracle Database architecture - Start up and shut down a database - Explain the installation of Oracle Database software |
| Controlling User Access | 5% | - Grant privileges on tables and on a view - Distinguish between granting privileges and roles - Differentiate system privileges from object privileges |
| Displaying Data from Multiple Tables Using Joins | 15% | - Join a table to itself by using a self-join - View data that does not meet a join condition by using outer joins - Cross join tables - Write SELECT statements to access data from more than one table using equijoins and non-equijoins |
| Using Set Operators | 5% | - Use a set operator to combine multiple queries into a single query - Describe set operators - Describe the order of precedence when the set operators are used |
| Using DDL Statements to Create and Manage Tables | 14% | - Describe the data types that are available for columns - Create a simple table - Categorize the main database objects - Drop, rename, and truncate tables - Alter table definitions - Review the table structure |
| Manipulating Data | 14% | - Describe each data manipulation language (DML) statement - Insert rows into a table - Delete rows from a table - Control transactions - Update rows in a table |
| Using Single-Row Functions to Customize Output | 10% | - Manipulate dates with the date functions - Perform arithmetic with date data - Describe the differences between single-row and multiple-row functions - Manipulate numbers with the ROUND, TRUNC, and MOD functions - Manipulate strings with character function in the SELECT and WHERE clauses |
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NEW QUESTION # 378
Examine the structure of the EMPLOYEES table.
You must display the maximum and minimum salaries of employees hired 1 year ago.
Which two statements would provide the correct output? (Choose two.)
Answer: B,C
NEW QUESTION # 379
You must find the number of employees whose salary is lower than employee 110.
Which statement fails to do this?
Answer: B
NEW QUESTION # 380
Which three statements about roles are true? (Choose three.)
Answer: D,E,G
Explanation:
Use the GRANT statement to assign access privileges and roles.
http://archive.dnnsoftware.com/docs/85/administrators/security/roles/assign-multiple-users-to-role.html
https://www.dnnsoftware.com/docs/administrators/user-accounts/assign-user-to-multiple-roles.html
https://www.ibm.com/support/knowledgecenter/en/SSGU8G_11.70.0/com.ibm.sqls.doc/ids_sqs_0
828.htm
NEW QUESTION # 381
Examine the structure of the CUSTOMERS table: (Choose two.)
CUSTNO is the PRIMARY KEY.
You must determine if any customers' details have been entered more than once using a different CUSTNO, by listing all duplicate names.
Which two methods can you use to get the required result?
Answer: A,B
NEW QUESTION # 382
Which two are true about unused columns?
Answer: A,F
NEW QUESTION # 383
......
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