ORACLE 1Z1-071 VALID CRAM MATERIALS - 1Z1-071 TRUSTED EXAM RESOURCE

Oracle 1z1-071 Valid Cram Materials - 1z1-071 Trusted Exam Resource

Oracle 1z1-071 Valid Cram Materials - 1z1-071 Trusted Exam Resource

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Oracle 1z1-071 exam, also known as the Oracle Database SQL exam, is a certification test that validates the knowledge and skills of individuals in using SQL to interact with Oracle Database. Passing 1z1-071 Exam demonstrates that an individual has a strong foundation in SQL and is capable of performing basic database operations.

Oracle Database SQL Sample Questions (Q243-Q248):

NEW QUESTION # 243
View the Exhibit and examine the structure of the EMP table which is not partitioned and not an index-organized table. (Choose two.)

Evaluate this SQL statement:
ALTER TABLE emp
DROP COLUMN first_name;
Which two statements are true?

  • A. The FIRST_NAME column would be dropped provided at least one column remains in the table.
  • B. The drop of the FIRST_NAME column can be rolled back provided the SET UNUSED option is added to the SQL statement.
  • C. The FIRST_NAME column would be dropped provided it does not contain any data.
  • D. The FIRST_NAME column can be dropped even if it is part of a composite PRIMARY KEY provided the CASCADE option is added to the SQL statement.

Answer: A


NEW QUESTION # 244
You execute this command:

Which two are true?

  • A. A FLASHBACK TABLE statement can be used to retrieve the deleted data.
  • B. A ROLLBACK statement can be used to retrieve the deleted data.
  • C. It always retains the space used by the removed rows.
  • D. It drops any triggers defined on the table.
  • E. It retains the indexes defined on the table.
  • F. It retains the integrity constraints defined on the table.

Answer: E,F


NEW QUESTION # 245
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 column.
  • B. A SELECT statement using the COUNT function with a DISTINCT keyword cannot have a WHERE clause.
  • C. COUNT(DISTINCT inv_amt) returns the number of rows excluding rows containing duplicates and NULLs in the INV_AMT column.
  • D. The COUNT function can be used only for CHAR, VARCHAR2, and NUMBER data types.
  • E. COUNT(cust_id) returns the number of rows including rows with duplicate customer IDs and NULLs in the CUST_ID column.

Answer: A,C


NEW QUESTION # 246
Which three; statements are true about built-in data types?

  • A. A varchar2 column definition does not require the length to be specified.
  • B. The default length for a char column Is always one character.
  • C. A BFILE stores unstructured binary data In operating system files.
  • D. A char column definition does not require the length to be specified.
  • E. A blob stores unstructured binary data within the database.
  • F. A varchar2 blank pads column values only if the data stored Is non-numeric and contains no Special characters.

Answer: B,C,E


NEW QUESTION # 247
Which three statements are true regarding single row subqueries?

  • A. They must be placed on the left side of the comparison operator or condition.
  • B. They must be placed on the right side of the comparison operator or condition.
  • C. They can be used in the having clause.
  • D. They must return a row to prevent errors in the SQL statement.
  • E. They can be used in the where clause.
  • F. A SQL statement may have multiple single row subquery blocks.

Answer: C,E,F


NEW QUESTION # 248
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