Are you still worrying about the high difficulty to pass Oracle certification 1Z0-071 exam? Are you still sleeplessly endeavoring to review the book in order to pass Oracle 1Z0-071 exam certification? Do you want to pass Oracle 1Z0-071 exam certification faster? Be quick to select our Certqueen Oracle Database SQL 1Z0-071 dumps! Having it can quickly fulfill your dreams. With Certqueen Oracle Database SQL 1Z0-071 dumps, you can get the latest Oracle 1Z0-071 exam questions and answers.
Share some Oracle Database 1Z0-071 exam questions and answers below.
Which two statements are true regarding the GROUP BY clause in a SQL statement? (Choose two.)
A. You can use 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.
Which two tasks can be performed by using Oracle SQL statements?
A. changing the password for an existing database
B. connecting to a database instance
C. querying data from tables across databases
D. starting up a database instance
E. executing operating system (OS) commands in a session
Which two statements are true about sequences created in a single instance database? (Choose two.)
A. CURRVAL is used to refer to the last sequence number that has been generated
B. DELETE would remove a sequence from the database
C. The numbers generated by a sequence can be used only for one table
D. When the MAXVALUE limit for a sequence is reached, you can increase the MAXVALUE limit by using the ALTER SEQUENCE statement
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 is restarted
Which two statements are true regarding the COUNT function? (Choose two.)
A. COUNT(*) returns the number of rows including duplicate rows and rows containing NULL value in any of the columns
B. COUNT(cust_id) returns the number of rows including rows with duplicate customer IDs and NULL value in the CUST_ID column
C. COUNT(DISTINCT inv_amt) returns the number of rows excluding rows containing duplicates and NULL values in the INV_AMT column
D. A SELECT statement using COUNT function with a DISTINCT keyword cannot have a WHERE clause
E. The COUNT function can be used only for CHAR, VARCHAR2 and NUMBER data types
Which two statements are true regarding multiple-row subqueries? (Choose two.)
A. They can contain group functions.
B. They always contain a subquery within a subquery.
C. They use the < ALL operator to imply less than the maximum.
D. They can be used to retrieve multiple rows from a single table only.
E. They should not be used with the NOT IN operator in the main query if NULL is likely to be a part of the result of the subquery.
The attention to the Oracle certificate and 1Z0-071 exam testing of Oracle are risen in recent years. IT professionals with Oracle Certification achieve not only a technical upgrade, but also gain a higher payment the enterprise has paied. At Certqueen Oracle Database SQL 1Z0-071 dumps page you will find the best possible certification preparation materials. Certqueen Software coule give you confidence in the process of preparing 1Z0-071 certification.
This number is proved by candidates through practice. Because Certqueen has a strong IT team of experts, they are committed to study exam questions and answers, and serve the vital interests of the majority of candidates. They use their own professional mind and experience to meet the needs of the candidates. According to the needs of the candidate, they consider the issue from all angles, and manufacturing applicability Oracle Database SQL 1Z0-071 dumps.