What does the ALTER TABLE Statement do?
By deleting the stored data, this SQL statement deletes the database.
Columns in the SQL database can be created, deleted, or modified with this SQL statement.
A new table in SQL is created using this SQL statement.
The table, its structure, views, permissions, and triggers will also be deleted or removed with this SQL statement.
Correct Answer :
B. Columns in the SQL database can be created, deleted, or modified with this SQL statement.
Columns in the SQL database can be created, deleted, or modified with ALTER TABLE SQL statement.
Related Questions
Which statement is correct to remove an Index from MySQL Database?
DROP INDEX Index_Name;
ALTER TABLE Table_Name DROP INDEX Index_Name;
DROP INDEX Index_Name ON Table_Name;
DROP INDEX Table_Name.Index_Name;
Which statement is not true about SQL?
Using SQL in relational databases is all about inserting, updating, and deleting data.
Sample data can also be described with the aid of this tool.
It helps develop relational database functions, events, and views.
A SQL user can also set restrictions and permissions for a table column, a view, and a stored procedure.
Which function is used to obtain the month from the entire data stored in a table's column?
DATE
TIME
MONTH
DATE & TIME
What is TRUE about DEFAULT constraint?
The value will first be checked for certain conditions before inserting it into the column when a DEFAULT constraint applies to a column in the table.
In the event of a DEFAULT constraint being applied to a table's column without a user specifying the value to be inserted when that constraint was applied, the default value that was specified when the constraint was applied will be put into that column.
An index can be created on the table using the DEFAULT constraint.
None of the above
What does the CREATE INDEX Statement do?
An index is created in a SQL database table with this SQL statement.
Changes made in the SQL database transaction are permanently saved using this SQL statement.
By running this SQL statement, the transaction will be undone and the operations not yet saved to the SQL database will be undone.
The SQL database table's index is deleted using this SQL statement.
Read in CRUD Operator means
To retrieve data
To fetch data
Both A. and B.
None of the above
SQL contains which component in its process?
Optimization Engines
SQL Query Engines
Query Dispatchers
All of the above
In order to start the transaction, the command used is
Mysql > START COMMIT;
Mysql > START TRANSACTION;
Mysql > START ROLLBACK;
None of the above
ROUND function consists of ___ parameters?
One
Two
Three
Four
A Sub query is an SQL expression that is placed ____ another SQL statement.
Before
After
Inside
Outside
Using which clause, can SQL EXCEPT be used in single table?
TO
AS
WHERE
IN
Savepoint command is used with _____ command.
Commit
Transaction
Rollback
None of the above
The SQL Modulus Operator returns the,
Quotient
Percentage
Sum
Reminder
In case to prevent the endless loop in CTE, ____ is added.
MAXLINEAR
MAXROUND
MAXRECURSION
None of the above
The SELECT TOP statement shows the limited number of:
Rows
Columns
Tables
None of the above
Which of the following statement is TRUE for SQL Additional Operator?
SELECT operand1-operand2;
SELECT operand1*operand2;
SELECT operand1+operand2;
SELECT operand1>operand2;
What is the full form of BLOB?
Binary Long Objects
Binary Least Objects
Binary Large Objects
Binary Large Orientation
In case of ____Rule, the primary key value, table name, and column name are characteristics that allow us to access the precise data (atomic value) logically from a relational database.
Systematic Treatment of Null Values
Guaranteed Access
View Updating
Physical Data Independence
It is possible to retrieve time in a more readable format, using which function?
TIME
TIME_FORM
TIME_FORMAT
TIME & DATE
SELECT INTO statement -
Select the content from a table.
Rename the content in a table.
Copy the content from one table into another existing table.
None of the above
A database does not need to be created in ____. A direct table creation option is provided in ____.
MySQL
Oracle
Both A and B
None of the above
Which of the following is the feature(s) of SQL Auto Increment?
In some cases you may not have any unique identifying characteristics in data; therefore, it makes sense to create a Primary Key.
Explicitly initializing and modifying the auto-increment value is possible at any time.
Record identifiers can easily be created that are unique to each record.
All of the above
Which of the following is TRUE about UNIQUE constraint?
In columns that are subject to the UNIQUE constraint, duplicate values are not allowed.
Unique values will always be present in the column containing the unique constraint.
A single table can have more than one unique constraint, since it can be applied to more than one column.
All of the above
What is the work of SELECT command?
Database objects such as tables, table views, and other objects can be deleted using this command.
Database objects such as tables, table views, and other objects can be deleted using this command.
One or more rows from one or more tables of the database can be accessed with this command. Using the WHERE clause with this command is also possible.
It enables you to create new databases, tables, table views, and other objects using this command.
What does the ROLLBACK Statement do?
Specify the columns of the table in this SQL statement to return distinct values.
Changes made in the SQL database transaction are permanently saved using this SQL statement.
By running this SQL statement, the transaction will be undone and the operations not yet saved to the SQL database will be undone.
An index is created in a SQL database table with this SQL statement.
Select the correct rule of SQL EXCEPT.
There must be the same number of columns in each table and the same order in every select statement.
It is desirable that the columns have similar or compatible data types.
Both SELECT statements must have the same fields in their respective columns.
All of the above
What does AVG() function returns?
First value of the column
Last value of the column
Sum of rows of the table
Average value of the column
Which keyword is used in SQL Server to implement the auto increment?
UNIQUE
IDENTITY
INCREMENT
ADD
What is Export Script by default?
Workspace_name_size/sql
Workspace_number_script/sql
Workspace_name_script/sql
Workspace_name_script/spl
Which of the following statement is TRUE?
At run time, temporary tables can be created.
Temporary table can do similar operations to normal table.
Both A) and B)
None of the above