1z0-071認證題庫 - 1z0-071考題

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Oracle 1z0-071 Exam Syllabus Topics:

SectionObjectives
SQL Retrieval- Joins and set operations
  • 1. INNER, OUTER, CROSS joins
    • 2. UNION, INTERSECT, MINUS
      - SELECT statements and filtering data
      • 1. WHERE clause and conditions
        • 2. ORDER BY and row limiting
          Relational Database Concepts- Tables, rows, columns, and relational model basics
          - Data types and database objects overview
          Data Manipulation and Schema Objects- DML operations
          • 1. INSERT, UPDATE, DELETE, MERGE
            - DDL operations
            • 1. CREATE, ALTER, DROP tables and constraints
              SQL Functions- Single-row functions
              • 1. Character, numeric, date functions
                - Conversion and conditional functions
                • 1. TO_CHAR, TO_NUMBER, CASE expressions
                  Subqueries and Advanced SQL- Single-row and multi-row subqueries
                  - Correlated subqueries and nested queries

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                  1z0-071考題 - 1z0-071考試資訊

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                  最新的 Oracle PL/SQL Developer Certified Associate 1z0-071 免費考試真題 (Q243-Q248):

                  問題 #243
                  You execute these commands:
                  CREATE TABLE customers (customer id INTEGER, customer name VARCHAR2 (20)); INSERT INTO customers VALUES (1'Custmoer1 '); SAVEPOINT post insert; INSERT INTO customers VALUES (2, 'Customer2 ');
                  <TODO>
                  SELECTCOUNT (*) FROM customers;
                  Which two, used independently, can replace <TODO> so the query retums 1?

                  答案：A,C


                  問題 #244
                  Examine the data in the PRODUCTS table:

                  Examine these queries:
                  1. SELECT prod name, prod list
                  FROM products
                  WHERE prod 1ist NOT IN(1020) AND category _id=1;
                  2. SELECT prod name, | prod _ list
                  FROM products
                  WHERE prod list < > ANY (1020) AND category _id= 1;
                  SELECT prod name, prod _ list
                  FROM products
                  WHERE prod_ list <> ALL (10 20) AND category _ id= 1;
                  Which queries generate the same output?

                  答案：B


                  問題 #245
                  The first DROPoperation is performed on PRODUCTStable using the following command:
                  DROP TABLE products PURGE;
                  Then you performed the FLASHBACKoperation by using the following command:
                  FLASHBACK TABLE products TO BEFORE DROP;
                  Which statement describes the outcome of the FLASHBACKcommand?

                  答案：A

                  解題說明：
                  Explanation/Reference:
                  References:
                  https://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_9003.htm


                  問題 #246
                  Examine these statements which execute successfully:
                  ALTER SESSION SET NLS_DATE_FORMAT = 'DD-MON-YYY HH24 :MT:SS;'
                  ALTER SESSION SET TIME-ZONE = '-5:00;:
                  Examine the result:

                  If LOCALTIMESTAMP was selected at the same time, what would it return?

                  答案：B


                  問題 #247
                  View the Exhibit and examine the structure of the ORDERS table. The columns ORDER_MODE and ORDER_TOTAL have the default values 'direct' and 0 respectively.

                  Which two INSERT statements are valid? (Choose two.)

                  答案：B,D


                  問題 #248
                  ......

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