Download Oracle Database 12c SQL Fundamentals.1z0-061.Pass4Sure.2015-04-04.84q.tqb
| Vendor: | Oracle |
| Exam Code: | 1z0-061 |
| Exam Name: | Oracle Database 12c SQL Fundamentals |
| Date: | Apr 04, 2015 |
| File Size: | 12 MB |
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Demo Questions
Question 1
Evaluate the following SQL statement:
Which statement is true regarding the outcome of the above query?
- It executes successfully and displays rows in the descending order of PROMO_CATEGORY.
- It produces an error because positional notation cannot be used in the order by clause with set operators.
- It executes successfully but ignores the order by clause because it is not located at the end of the compound statement.
- It produces an error because the order by clause should appear only at the end of a compound query-that is, with the last select statement.
Correct answer: D
Explanation:
fine asnwer. fine asnwer.
Question 2
Which three tasks can be performed using SQL functions built into Oracle Database?
- Displaying a date in a nondefault format
- Finding the number of characters in an expression
- Substituting a character string in a text expression with a specified string
- Combining more than two columns or expressions into a single column in the output
Correct answer: ABC
Question 3
View the Exhibit and examine the description of SALES and PROMOTIONS tables.
You want to delete rows from the sales table, where the PROMO_NAME column in the promotions table has either blowout sale of everyday low prices as values.
Which three delete statements are valid?
- Option A
- Option B
- Option C
- Option D
Correct answer: BCD
Question 4
Which three SQL statements would display the value 1890.55 as $1, 890.55?
- Option A
- Option B
- Option C
- Option D
- Option E
Correct answer: ADE
Explanation:
genuine answer. genuine answer.
Question 5
Evaluate the following SQL commands:
The command to create a table fails. Identify the two reasons for the SQL statement failure?
- You cannot use SYSDATE in the condition of a check constraint.
- You cannot use the BETWEEN clause in the condition of a check constraint.
- You cannot use the NEXTVAL sequence value as a default value for a column.
- You cannot use ORD_NO and ITEM_NO columns as a composite primary key because ORD_NO is also the foreign key.
Correct answer: AC
Explanation:
CHECK Constraint The CHECK constraint defines a condition that each row must satisfy. The condition can use the same constructs as the query conditions, with the following exceptions:References to the CURRVAL, NEXTVAL, LEVEL, and ROWNUM pseudocolumns Calls to SYSDATE, UID, USER, and USERENV functions Queries that refer to other values in other rows A single column can have multiple CHECK constraints that refer to the column in its definition. There is no limit to the number of CHECK constraints that you can define on a column. CHECK constraints can be defined at the column level or table level. CREATE TABLE employees (... Salary NUMBER(8, 2) CONSTRAINT emp_salary_min CHECK (salary > 0), CHECK Constraint
The CHECK constraint defines a condition that each row must satisfy. The condition can use the same constructs as the query conditions, with the following exceptions:
References to the CURRVAL, NEXTVAL, LEVEL, and ROWNUM pseudocolumns Calls to SYSDATE, UID, USER, and USERENV functions
Queries that refer to other values in other rows
A single column can have multiple CHECK constraints that refer to the column in its definition. There is no limit to the number of CHECK constraints that you can define on a column. CHECK constraints can be defined at the column level or table level.
CREATE TABLE employees
(...
Salary NUMBER(8, 2) CONSTRAINT emp_salary_min CHECK (salary > 0),
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