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Oracle 1z0-071 考試大綱：

主題 簡介
主題 1
  • lumns and set column UNUSED
  • Explain the theoretical and physical aspects of a relational database
  • Use DDL to manage tables and their relationships
主題 2
  • Build a SELECT statement to retrieve data from an Oracle Database table
  • Use the WHERE clause to the SELECT statement to filter query results
主題 3
  • Identify the connection between an ERD and a database using SQL SELECT statements
  • Use the ORDER BY clause to sort SQL query results
主題 4
  • Limit and Sort the rows that are retrieved by a query
  • Use ampersand substitution to restrict and sort output at runtime
  • Use various types of functions available in SQL
主題 5
  • Use character, number, and date and analytical (PERCENTILE_CONT, STDDEV, LAG, LEAD) functions in SELECT statements
  • Reporting Aggregated Data Using the Group Functions
主題 6
  • Managing Objects with Data Dictionary Views
  • Use the data dictionary views to research data on objects
  • Query various data dictionary views
主題 7
  • Using DDL Statements to Create and Manage Tables
  • Describe data types that are available for columns
  • Describe how schema objects work
主題 8
  • Use the EXISTS and NOT EXISTS operators
  • Use single-row and multiple-row subqueries
  • Create simple and complex views with visible
  • invisible columns
  • Create, maintain and use sequences
主題 9
  • Using Data Manipulation Language (DML) and Transaction Control Language (TCL)
  • Describe the purpose of DML

>> 1z0-071考題寶典 <<

看1z0-071考題寶典參考資料 - 擺脫Oracle Database SQL考試煩惱

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最新的 Oracle PL/SQL Developer Certified Associate 1z0-071 免費考試真題 (Q188-Q193):

問題 #188
Examine the description of the EMPLOYEEStable:

Examine this query:

Which line produces an error?

  • A. Line 5
  • B. Line 7
  • C. Line 8
  • D. Line 3

答案：D
問題 #189
You are designing the structure of a table in which two columns have the specifications:
COMPONENTID- must be able to contain a maximum of 12 alphanumeric characters and must uniquely identify the row EXECUTIONDATETIME- contains Century, Year, Month, Day, Hour, Minute, Second to the maximum precision and is used for calculations and comparisons between components.
Which two options define the data types that satisfy these requirements most efficiently? (Choose two.)

  • A. The EXECUTION_DATETIME must be of DATE data type.
  • B. The COMPONENT_IDmust be of VARCHAR2 data type.
  • C. The COMPONENT_IDmust be of ROWID data type.
  • D. The EXECUTION_DATETIME must be of INTERVAL DAY TO SECOND data type.
  • E. The COMPONENT_IDcolumn must be of CHAR data type.
  • F. The EXECUTION_DATETIME must be of TIMESTAMP data type.

答案：A,E
問題 #190
The EMPLOYEES table contains columns EMPIDof data type NUMBERand HIREDATEof data type DATE.
You want to display the date of the first Monday after the completion of six months since hiring.
The NLSTERRITORYparameter is set to AMERICAin the session and, therefore, Sunday is the first day of the week.
Which query can be used?
SELECT empid, NEXTDAY(MONTHSBETWEEN(hire_date, SYSDATE), 6) FROM employees;

  • A. SELECT empid, NEXTDAY(ADDMONTHS(hiredate, 6), 1) FROM employees;
  • B.
  • C. SELECT empid, NEXTDAY(ADDMONTHS(hiredate, 6), 'MONDAY') FROM employees;
  • D. SELECT empid, ADDMONTHS(hiredate, 6), NEXTDAY('MONDAY') FROM employees;

答案：D 解題說明：
Explanation/Reference: http://www.dba-oracle.com/taddmonths.htm
問題 #191
You and your colleague Andrew have these privileges on the EMPLOYEERECORDS table:
1. SELECT
2. INSERT
3. UPDATE
4. DELETE
You connect to the database instance an perform an update to some of the rows in
EMPLOYEERECORDS, but don't commit yet.
Andrew connects to the database instance and queries the table
No othet user are accessing the table
Which two statements ate true at this point?

  • A. Andrew will be able to see the changes you habe made
  • B. Andrew will be unable to perform any INSERT, UPDATE of DELETE on the teble
  • C. Andrew will be unable to see the changes you have made
  • D. Andrew will be able to SELECT from the table, but be unable to modify any existing rows.
  • E. Andrew will be able to modify any rows in the table that have not been modified by your transaction

答案：C,E
問題 #192
Examine the commands used to create DEPARTMENTDETAILSand COURSEDETAILS tables:

You want to generate a list of all department IDs that do not exist in the COURSE_DETAILStable.
You execute the SQL statement:

What is the outcome?

  • A. It fails because the join type used is incorrect.
  • B. It executes successfully and displays the required list.
  • C. It fails because the ON clause condition is not valid.
  • D. It executes successfully but displays an incorrect list.

答案：B
問題 #193
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