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The Oracle 1z1-071 exam is designed to test a candidate's ability to work with SQL in Oracle Database 12c. It is a valuable certification for individuals who want to enhance their skills and knowledge in SQL and Oracle Database administration. Oracle Database SQL certification is recognized globally and is highly valued by employers.

The Oracle 1z1-071 exam covers a range of topics such as SQL SELECT statements, data manipulation, data control language, data definition language, and transaction control statements. Candidates are required to have a good understanding of SQL syntax, database objects, data modeling, and normalization concepts. 1z1-071 Exam also tests the candidate's ability to write efficient and optimized SQL queries that can retrieve and manipulate data from the Oracle database. Candidates who pass the exam can demonstrate their ability to design, implement and manage Oracle databases, which can help them advance their careers in the field of database management.

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Oracle Database SQL Sample Questions (Q115-Q120):

NEW QUESTION # 115
Which two are true about creating tables in an Oracle database?

A. Creating an external table will automatically create a file using the specified directory and file name.
B. The same table name can be used for tables in different schemas.
C. A system privilege is required.
D. A primary key constraint is manadatory.
E. A create table statement can specify the maximum number of rows the table will contain.

Answer: B,E

NEW QUESTION # 116
View the exhibit and examine the ORDERS table.

The ORDERS table contains data and all orders have been assigned a customer ID. Which statement would add a NOT NULL constraint to the CUSTOMER_ID column?

A. ALTER TABLE ordersADD CONSTRAINT orders_cust_id_nn NOT NULL (customer_id);
B. ALTER TABLE ordersMODIFY customer_id CONSTRAINT orders_cust_nn NOT NULL (customer_id);
C. ALTER TABLE ordersMODIFY CONSTRAINT orders_cust_id_nn NOT NULL (customer_id);
D. ALTER TABLE ordersADD customer_id NUMBER(6)CONSTRAINT orders_cust_id_nn NOT NULL;

Answer: B

NEW QUESTION # 117
You want to write a query that prompts for two column names and the WHEREcondition each time it is executed in a session but only prompts for the table name the first time it is executed.
The variables used in your query are never undefined in your session.
Which query can be used?

Answer: D

NEW QUESTION # 118
Whith three statements are true about built in data types?

A. A VARCHAR2 blank pads column values only if the data stored is non numeric and contains no special characlers
B. A CHAR column definition does not require the length to be specified
C. A BFILE stores unstructured binary data in operating systerm files
D. A BLOB stores unstructured binary data within the database
E. A VARCHAR2 column definition does not require the length to be specified
F. The default length for a CHAR column is always one character

Answer: C,D,F

Explanation:
The true statements about built-in data types in Oracle are:
* B: A BFILE is a data type in Oracle that allows for a read-only link to binary files stored outside the database in the operating system. This is correct as per Oracle's documentation.
* D: The default length for a CHAR column, when not specified, is one character. This is according to the Oracle SQL standard.
* F: A BLOB is used for storing binary data within the Oracle database, allowing for storage of large amounts of unstructured binary data.
The incorrect options are:
* A: A VARCHAR2 column does not blank-pad values; it is CHAR that may blank-pad to the fixed length.
* C: A CHAR column requires a length specification, although if omitted, the default is one character.
* E: A VARCHAR2 column requires a length specification; without it, the statement will fail.
References:
* Oracle Documentation on Data Types: Data Types
* Oracle Documentation on LOBs: LOBs
* Oracle Documentation on Character Data Types: Character Data Types

NEW QUESTION # 119
Which two statements are true regarding operators used with subqueries (Choose two.)

A. The NOT INoperator is equivalent to IS NULL.
B. The INoperator cannot be used in single-row subqueries.
C. =ANYand =ALLoperators have the same functionality.
D. The NOToperator can be used with IN, ANYand ALLoperators.
E. The <ANYoperator means less than the maximum.

Answer: D,E

NEW QUESTION # 120
......

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