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| Section | Weight | Objectives |
|---|---|---|
| Using Set Operators | 5% | - Describe the order of precedence when the set operators are used - Use a set operator to combine multiple queries into a single query - Describe set operators |
| Using Single-Row Functions to Customize Output | 10% | - Describe the differences between single-row and multiple-row functions - Manipulate dates with the date functions - Perform arithmetic with date data - Manipulate numbers with the ROUND, TRUNC, and MOD functions - Manipulate strings with character function in the SELECT and WHERE clauses |
| Retrieving Data Using the SQL SELECT Statement | 5% | - Execute a basic SELECT statement - List the capabilities of SQL SELECT statements - Differentiate between SQL statements and SQL*Plus commands |
| Restricting and Sorting Data | 6% | - Use DEFINE and UNDEFINE commands - 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 |
| Manipulating Data | 14% | - Control transactions - Insert rows into a table - Delete rows from a table - Update rows in a table - Describe each data manipulation language (DML) statement |
| Creating Other Schema Objects | 10% | - Create and maintain indexes - Create, modify, and retrieve data from a view - Create synonyms for database objects - Create, maintain, and use sequences |
| Using Subqueries to Solve Queries | 15% | - Write single-row and multi-row subqueries - List the types of subqueries - Describe the types of problems that subqueries can solve - Define subqueries |
| 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 DDL Statements to Create and Manage Tables | 14% | - Categorize the main database objects - Review the table structure - Drop, rename, and truncate tables - Describe the data types that are available for columns - Alter table definitions - Create a simple table |
| Reporting Aggregated Data Using Group Functions | 15% | - 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 |
| Controlling User Access | 5% | - Differentiate system privileges from object privileges - Distinguish between granting privileges and roles - Grant privileges on tables and on a view |
| Displaying Data from Multiple Tables Using Joins | 15% | - 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 - View data that does not meet a join condition by using outer joins - Cross join tables |
| Using Conversion Functions and Conditional Expressions | 10% | - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions - Apply the NVL, NULLIF, and COALESCE functions to data - Describe implicit and explicit data type conversion - Use conditional IF THEN ELSE logic in a SELECT statement |
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問題 #362
Examine the description of the CUSTOMERStable:
You need to display last names and credit limits of all customers whose last name starts with A or B in lower or upper case, and whose credit limit is below 1000.
Examine this partial query:
Which two WHEREconditions give the required result?
答案：C,E
問題 #363
Which two are true about using constraints?
答案：E,F
問題 #364
Which three actions can you perform by using the ORACLE_DATAPUMP access driver?
(Choose three.)
答案：A,C,F
問題 #365
View the Exhibit and examine the structure of ORDER_ITEMS and ORDERS tables.
You need to remove from the ORDER_ITEMS table those rows that have an order status of 0 or 1 in the ORDERS table.
Which two DELETE statements are valid (Choose two.)
答案：C,D
問題 #366
View the Exhibit and examine the data in the PRODUCTStable.
Which statement would add a column called PRICE, which cannot contain NULL?
ALTER TABLE products
答案：B
解題說明：
Explanation
問題 #367
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