Which of the following statements will execute successfully? [Choose any TWO]INSERT INTO Student(Id, Name, Gender, DOJ) VALUES(1, 'Alice', 'F', NULL);INSERT INTO Student(Id, Gender) VALUES( 1, 'F');INSERT INTO Student(Id, Name) VALUES(1, 'Alice');INSERT INTO Student(Id, Name, Gender, DOJ) VALUES (1,NULL, 'F', '20-JAN-15');
Question
Which of the following statements will execute successfully? [Choose any TWO]INSERT INTO Student(Id, Name, Gender, DOJ) VALUES(1, 'Alice', 'F', NULL);INSERT INTO Student(Id, Gender) VALUES( 1, 'F');INSERT INTO Student(Id, Name) VALUES(1, 'Alice');INSERT INTO Student(Id, Name, Gender, DOJ) VALUES (1,NULL, 'F', '20-JAN-15');
Solution
The successful execution of these statements depends on the structure of the "Student" table in your database and whether certain fields are set to NOT NULL.
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INSERT INTO Student(Id, Name, Gender, DOJ) VALUES(1, 'Alice', 'F', NULL);This statement will execute successfully if the DOJ (Date of Joining) column allows NULL values. -
INSERT INTO Student(Id, Gender) VALUES( 1, 'F');This statement will execute successfully only if the other columns (Name, DOJ) allow NULL values, as they are not being provided in this INSERT statement. -
INSERT INTO Student(Id, Name) VALUES(1, 'Alice');This statement will execute successfully only if the other columns (Gender, DOJ) allow NULL values, as they are not being provided in this INSERT statement. -
INSERT INTO Student(Id, Name, Gender, DOJ) VALUES (1,NULL, 'F', '20-JAN-15');This statement will execute successfully if the Name column allows NULL values.
Without knowing the exact structure and constraints of your "Student" table, it's impossible to definitively say which two statements will execute successfully. However, generally, the first and fourth statements are more likely to execute successfully, assuming the DOJ and Name columns respectively allow NULL values.
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