in sql The EMPLOYEE table contains these columns: EMP_ID NOT NULL, Primary Key SSNUM NOT NULL, Unique LAST_NAME VARCHAR2(25) FIRST_NAME VARCHAR2(25) DEPT_ID NUMBER Foreign Key to DEPT_ID column of the DEPARTMENT table SALARY NUMBER(8,2). You execute this statement:CREATE INDEX emp_name_idx ON employee(last_name, first_name); Which statement is true? Select one: a. The statement creates a composite non-unique index b. The statement creates a composite unique index. c. The statement creates a function-based index. d. The statement fails because of a syntax error.
in sql The EMPLOYEE table contains these columns: EMP_ID NOT NULL, Primary Key SSNUM NOT NULL, Unique LAST_NAME VARCHAR2(25) FIRST_NAME VARCHAR2(25) DEPT_ID NUMBER Foreign Key to DEPT_ID column of the DEPARTMENT table SALARY NUMBER(8,2). You execute this statement:CREATE INDEX emp_name_idx ON employee(last_name, first_name); Which statement is true? Select one: a. The statement creates a composite non-unique index b. The statement creates a composite unique index. c. The statement creates a function-based index. d. The statement fails because of a syntax error.
Chapter4: Constraints
Section: Chapter Questions
Problem 1HOA
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in sql
The EMPLOYEE table contains these columns: EMP_ID NOT NULL, Primary Key SSNUM NOT NULL, Unique LAST_NAME VARCHAR2(25) FIRST_NAME VARCHAR2(25) DEPT_ID NUMBER Foreign Key to DEPT_ID column of the DEPARTMENT table SALARY NUMBER(8,2).
You execute this statement:CREATE INDEX emp_name_idx ON employee(last_name, first_name); Which statement is true?
You execute this statement:CREATE INDEX emp_name_idx ON employee(last_name, first_name); Which statement is true?
Select one:
a. The statement creates a composite non-unique index
b. The statement creates a composite unique index.
c. The statement creates a function-based index.
d. The statement fails because of a syntax error.
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