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Ad libitum [116K]
3 years ago
5

. Briefly describe an SQL DML statement for changing existing data in a table.

Computers and Technology
1 answer:
bearhunter [10]3 years ago
8 0

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;

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Answer:

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2 years ago
End users have complained that when they click a link on your company's Website, the wrong client loads. You review the page wit
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Answer:

4. A Web server has been specified.

Explanation:

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2 years ago
Java IntelliJ
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Your solution is ready.

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3 years ago
Write statements that output variable numComputers as follows. End with a newline
gavmur [86]

Complete Question:

Write statements that output variable numComputers as follows. End with a newline. There are 10 computers.

#include <iostream>

using namespace std;

int main()

{

int numComputers;

cin >> numComputers; // Program will be tested with values: 10.

...

return 0;

}

Answer:

cout << "There are ";

cout << numComputers;

cout << " computers." << "\n";

Explanation:

Using three cout statements the string "There are 10 computers." is printed out, notice that the variable numComputers is entered by the user when the program is run. Another way of concatenating an integer variable and string for printout is by the use of the + (plus) operator.

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2 years ago
द्विआधार जोड गर (Binary<br>addition):<br>-<br>(i) 1012 + 1112<br>(ii) 1112 + 100​
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Answer:

1.2124

2.1212 is the correct answer right

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