Answer:
The Update statement in the DML is used for changing existing data in a table.
Explanation:
Their are following Sql statement in the DML.
Insert
This SQL statement is used for inserting data into the table.
select
This SQL statement is used for retrieving data from database
update
This SQL statement is used for updating data in a table.
delete
This SQL statement is used for delete data from database .
The "UPDATE" SQL statement in DML is used for Modify the data in the existing table .
Following are the syntax of Update SQL query
Update tablename
set column1=value1,column2=value2............column N=valueN
Where condition;
Example :Suppose we have student table and (rollno,name,age and add) are the field for that table we have to change the address of rollno 105
Then we use update query like that
UPDATE STUDENT
SET add='kalam nagar'
where rollno=105;
Answer:
Secure the personal information with complex multi-factor authentication and configure intrusion detection and prevention and a firewall.
Explanation:
Multi-factor authentication is a method of securing a client's personal information from the client's side to the data centre. It uses more than one security processes not policies. There key be three authentications process like a password, security token and biometrics or two authentications like password and biometrics or token.
The firewall and intrusion detection and prevention are vulnerability preventive method to detect and stop cyber attacks.
Answer:
Rearrange the order of slides
In the pane on the left, click the thumbnail of the slide that you want to move, and then drag it to the new location. Tip: To select multiple slides, press and hold Ctrl while you click each slide that you want to move, and then drag them as a group to the new location.
Explanation:
Answer: C. Data type
Explanation:
data types are defined as the data storage format that a variable can store a data to perform a specific operation. Data types are used to define a variable before its use in a program. Size of variable, constant and array are determined by data types.
