Answer:
An operating system is a software that helps the any computers basic needs or functions. For example, the windows on a computer is a operating system.
Explanation:
Answer:
The correct answer for the given question is true .
Explanation:
SQL is an Structural query language that is used for accessing the database basically it is an query language which is used for communicating with database by executed the query .
The following are the function of SQL
SQL can insert the data into database
it can update the record into database
SQL can retrived the database.
We do not use SQL for writing application it is only used to accessing the database
For create application we can use programming language Like PHP,ASP,JAVA ,PYTHON.etc.
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;
Culture identifies who you are, what you value, and how you act.
