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Latest and Most Accurate Oracle 1z0-071 Dumps Exam Questions and Answers:
You want to display the date for the first Monday of the next month and issue the following command:
SQL>SELECT TO_CHAR(NEXT_DAY(LAST_DAY(SYSDATE),’MON’), ‘dd “is the first Monday for”fmmonth rrrr’) FROM DUAL;
What is the outcome?
A. It executes successfully and returns the correct result.
B. It executes successfully but does not return the correct result.
C. It generates an error because TO_CHAR should be replaced with TO_DATE.
D. It generates an error because rrrr should be replaced by rr in the format string.
E. It generates an error because fm and double quotation marks should not be used in the format string.
• NEXT_DAY(date, ‘char’): Finds the date of the next specified day of the week (‘char’) following date. The value of char may be a number representing a day or a character string.
• LAST_DAY(date): Finds the date of the last day of the month that contains date
The second innermost function is evaluated next. TO_CHAR(’28-OCT-2009′, ‘fmMonth’) converts the given date based on the Month format mask and returns the character string October. The fm modifier trims trailing blank spaces from the name of the month.
Which two statements are true regarding the GROUP BY clause in a SQL statement? (Choose two.)
A. You can use the column alias in the GROUP BY clause.
B. Using the WHERE clause after the GROUP BY clause excludes the rows after creating groups.
C. The GROUP BY clause is mandatory if you are using an aggregate function in the SELECT clause.
D. Using the WHERE clause before the GROUP BY clause excludes the rows before creating groups.
E. If the SELECT clause has an aggregate function, then those individual columns without an aggregate function in the SELECT clause should be included in the GROUP BY clause.
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Which statement is true regarding external tables?
A. The default REJECT LIMIT for external tables is UNLIMITED.
B. The data and metadata for an external table are stored outside the database.
C. ORACLE_LOADER and ORACLE_DATAPUMP have exactly the same functionality when used with an external table.
D. The CREATE TABLE AS SELECT statement can be used to unload data into the regular table in the database from an external table.
Which two statements are true about Data Manipulation Language (DML) statements?
A. AH INSERT INTO…VALUES… statement can add multiple rows per execution to a table.
B. An UPDATE…SET… statement can modify multiple rows based on multiple conditions on a table.
C. A DELETE FROM ….. statement can remove rows based on only a single condition on a table.
D. An INSERT INTO…VALUES….. statement can add a single row based on multiple conditions on a table.
E. A DELETE FROM….. statement can remove multiple rows based on multiple conditions on a table.
F. An UPDATE…SET…. statement can modify multiple rows based on only a single condition on a table.
Which two statements are true regarding roles? (Choose two.)
A. A role can be granted to itself.
B. A role can be granted to PUBLIC.
C. A user can be granted only one role at any point of time.
D. The REVOKE command can be used to remove privileges but not roles from other users.
E. Roles are named groups of related privileges that can be granted to users or other roles.
Which two statements are true regarding constraints? (Choose two.)
A. A foreign key cannot contain NULL values.
B. A column with the UNIQUE constraint can contain NULL.
C. A constraint is enforced only for the INSERT operation on a table.
D. A constraint can be disabled even if the constraint column contains data.
E. All the constraints can be defined at the column level as well as the table level