A. SELECT SYSDATE - SYSDATE FROM DUAL;
B. SELECT SYSDATE - (SYSDATE - 2) FROM DUAL;
C. SELECT SYSDATE - (SYSDATE + 2) FROM DUAL;
D. None of these
Answer: Option D
SELECT SYSDATE - SYSDATE FROM DUAL; outputs 0
SELECT SYSDATE - (SYSDATE - 2) FROM DUAL; outputs 2
SELECT SYSDATE - (SYSDATE + 2) FROM DUAL; outputs -2
This Question Belongs to SQL >> Sql Miscellaneous
A. Structured Query Language
B. Structured Query List
C. Simple Query Language
D. None of these
Which is the subset of SQL commands used to manipulate Oracle Database structures, including tables?
A. Data Definition Language(DDL)
B. Data Manipulation Language(DML)
C. Both of above
D. None
Which operator performs pattern matching?
A. BETWEEN operator
B. LIKE operator
C. EXISTS operator
D. None of these
What operator tests column for the absence of data?
A. EXISTS operator
B. NOT operator
C. IS NULL operator
D. None of these
How can a future date be subtracted from current date??