Answer:
UPDATE COMPANY
SET COMM=COMM + 500
WHERE SALES> 20000;
Explanation:
The update command is used for alter the record in the database management system in the table .The update command command modify the record on the some condition in the table in the database management system.
Following are syntax for using the update command .
UPDATE table-name
SET column name 1,column name 2 .........
Where condition
- In the given question table -name is "COMPANY" the condition is on the sales column and it update the table only when sales is more than 20000 and set the column COMM by 500.
Answer:
The correct answer to the following question will be "True".
Explanation:
SCADA is a hardware and software elements program that permits industrial enterprises to:
- Agricultural processes are regulated locally or globally.
- The human-machine interaction program specifically interfaces with equipment such as cameras, switches, generators, motors and much more.
- Track, store, and process the data in real-time.
Therefore, the given statement is true.
Answer:
Speakers.
Explanation: Cause they only output sound, and are devices, further more they are not used to output images, like how could speakers output images using sound? They can't.
