Which of the following is not a DDL command in SQL?
Show Hint
DROP
CREATE
UPDATE
ALTER
The Correct Option is C
Solution and Explanation
UPDATE is a Data Manipulation Language (DML) command used to modify data in existing rows of a table. On the other hand, DROP, CREATE, and ALTER are Data Definition Language (DDL) commands, which are used to define and modify the structure of a database.
Top CBSE CLASS XII Computer Science Questions
- State True or False:
While defining a function in Python, the positional parameters in the function header must always be written after the default parameters. The SELECT statement when combined with \(\_\_\_\_\_\_\) clause, returns records without repetition.
- What will be the output of the following statement:
print(16 * 5 / 4 * 2 / 5 - 8)
- The slicing operations in the given code work as follows:
myStr[:4]extracts the first 4 characters, which are"MISS".myStr[-5:]extracts the last 5 characters, which are"SIPPI".- These two substrings are concatenated with a
"#"in between, resulting in"MISS#SIPPI".
In SQL, the aggregate function which will display the cardinality of the table is \(\_\_\_\_\_\).
Top CBSE CLASS XII Types of Functions Questions
The SELECT statement when combined with \(\_\_\_\_\_\_\) clause, returns records without repetition.
In SQL, the aggregate function which will display the cardinality of the table is \(\_\_\_\_\_\).
- Consider the statements given below and then choose the correct output from the given options:
myStr = "MISSISSIPPI" print(myStr[:4] + "#" + myStr[-5:]) - Which of the following options is the correct unit of measurement for network bandwidth?
Assertion (A): CSV file is a human-readable text file where each line has a number of fields, separated by a comma or some other delimiter.
Reason (R): writerow() method is used to write a single row in a CSV file.
Mark the correct choice:
Top CBSE CLASS XII Questions
- 2, b, c are in A.P. and the range of determinant $\begin{vmatrix}1&1&1\\ 2&b&c\\ 4&b^{2}&c^{2}\end{vmatrix}$ is [2, 16]. Then find range of c is
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