it is called an attribute
Answer:
Four types of errors program should test for user input are given in explanation
Explanation:
1. Program should test that extension contains exactly three letters
2. Program should test that extension doesn't contain any number or special character
3. Program should test that extension doesn't contain any white space
4. Program should test that extension doesn't contain any punctuation mark
Answer:
Follows are the matching to this question:
Explanation:
While time-consuming or prone to errors mechanical adjustments to both the referential, databases could be configured with four measures to engine violations. The restricted action causes the insert, update, and removes to only be denied. Set Null to NULL sets the invalid external key, whereas Set Default to a specific core consideration specified in SQL sets a default foreign key. Its Cascade operation spreads the main changes in external keys.
Answer:
2 conductors.
Explanation:
A dimmer switch is an electrical switching or control device used to control the power or voltage to a compatible dimmer bulb.
It reduces the ambience if light bulbs by uniformly increasing the resistance of the switch when the knob is rotated to a lesser point. It is a circuit breaker as two conductors are connected to its terminals and a variable voltage resistor determines the flow of current between them.
