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Passleader 1z0-051 Questions Answers

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Passleader 1z0-051 Questions Answers

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  1. Oracle 1z0-051 exam in just 24HOURS! REAL EXAM QUESTIONSANSWERS Oracle1z0-051 Buy Complete Questions Answers Filefrom http://www.passleaders.com/1z0-051-exam.html 100% Exam Passing Guarantee & Money Back Assurance

  2. QUESTION1: Evaluate the SQLstatement: TRUNCATE TABLEDEPT; Which three are true about the SQL statement? (Choosethree.) It releases the storage space used by thetable. It does not release the storage space used by thetable. You can roll back the deletion of rows after the statementexecutes. You can NOT roll back the deletion of rows after the statementexecutes. An attempt to use DESCRIBE on the DEPT table after the TRUNCATE statement executes will display anerror. You must be the owner of the table or have DELETE ANY TABLE system privileges to truncate the DEPTtable Answer: A, D,F QUESTION2: Where can sub queries be used? (Choose all thatapply) field names in the SELECTstatement the FROM clause in the SELECTstatement the HAVING clause in the SELECTstatement the GROUP BY clause in the SELECTstatement the WHERE clause in only the SELECTstatement the WHERE clause in SELECT as well as all DMLstatements Answer: A, B, C,F QUESTION3: Which three SQL statements would display the value 1890.55 (Choosethree.) A. SELECT TO_CHAR(1890.55,'$99G999D00') FROMDUAL; as$1,890.55?

  3. B. SELECTTO_CHAR(1890.55,'$9,999V99') FROMDUAL; C. SELECTTO_CHAR(1890.55,'$0G000D00') FROMDUAL; Real8 Oracle 1z0-051Exam D. SELECTTO_CHAR(1890.55,'$99G999D99') FROMDUAL; E. SELECT TO_CHAR(1890.55,'$9,999D99') FROMDUAL; Answer: A, C,D QUESTION4: Which two statements are true regarding constraints? (Choosetwo.) A constraint can be disabled even if the constraint column containsdata A constraint is enforced only for the INSERT operation on atable A foreign key cannot contain NULLvalues All constraints can be defined at the column level as well as the tablelevel A columns with the UNIQUE constraint can contain NULLvalues Answer: A,E QUESTION5: Which two statements are true about sequences created in a single instance database? (Choosetwo.) CURRVAL is used to refer to the last sequence number that has beengenerated DELETE <sequencename> would remove a sequence from thedatabase The numbers generated by a sequence can be used only for onetable When the MAXVALUE limit for a sequence is reached, you can increase the MAXVALUE limit by using the ALTER SEQUENCE statement

  4. E. When a database instance shuts down abnormally, the sequence numbers that have been cached but not used would be available once again when the database instance isrestarted Answer: A,D QUESTION6: Evaluate this SQL statement: SELECT e.emp_name, d.dept_name FROM employeese JOIN departments d USING(department_id) WHERE d.department_id NOT IN (10,40) ORDER BYdept_name; The statement fails when executed. Which change fixes theerror? remove the ORDER BYclause remove the table alias prefix from the WHEREclause remove the table alias from the SELECTclause prefix the column in the USING clause with the tablealias prefix the column in the ORDER BY clause with the tablealias replace the condition "d.department_id NOT IN (10,40)" in the WHERE clause with "d.department_id <> 10 AND d.department_id <>40" Answer:B QUESTION7: Which two statements are true regarding single row functions? (Choosetwo.) They can be nested only to twolevels They always return a single result row for every row of a queried table Arguments can only be column values orconstant They can return a data type value different from the one that isreferenced

  5. E. They accept only a singleargument Answer: B,D QUESTION8: Which two statements are true regarding working with dates? (Choosetwo.) The default internal storage of dates is in the numericformat the RR date format automatically calculates the century from the SYSDATE function but allows the user to enter the century ifrequired The default internal storage of dates is in the characterformat the RR date format automatically calculates the century from the SYSDATE function and does not allow the user to enter thecentury Answer: A,B QUESTION9: Examine thestatement: Create synonym emp for hr.employees; What happens when you issue the statement? An error isgenerated. You will have two identical tables in the HR schema with differentnames. You create a table called employees in the HR schema based on you EMPtable. You create an alternative name for the employees table in the HR schema in your ownschema. Answer:D

  6. QUESTION10: • Which are /SQL*Plus commands? (Choose all thatapply.) • INSERT • UPDATE • SELECT • DESCRIBE • DELETE • RENAME • Answer:D • Buy Complete Questions Answers Filefrom • PDF Version + Test Engine Software Version • 90 Days Free UpdatesService • Valid for AllCountries http://www.passleaders.com/1z0-051-exam.html

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