A(n)<u> Instead Of trigger </u>is a pl/sql block that manages in place of a dml action on a database view.
<h3>Why instead of triggers are used?</h3>
INSTEAD OF triggers describe how to perform insert, update, and delete functions against complex views. INSTEAD OF triggers permit applications to use a view as the sole interface for all SQL operations.
<h3>What are the after triggers?</h3>
An after trigger runs after the connected insert, update, or delete changes are involved to the table. The WHEN condition can be used in an SQL trigger to specify a state. If the condition evaluates to true, the SQL views in the SQL trigger routine body are run.
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Answer:
a future date
Explanation:
Because most people when trying to guess a password, start with basic ones like: 1234,abcde, password,l and dates (like their birthday). whereas, the person would never guess it was a future date like when the person would be 30 or when they are going on a trip .
Answer:
def getChar():
while True:
in1 = input('Enter first char: ')
try:
if len(in1) != 1:
raise
else:
in2 = input('Enter second char: ')
if len(in2) != 1:
raise
else:
break
except:
print('Enter just one character')
return in1, in2
def chars2string(in1,in2):
print(in1*5 + in2*5)
def main():
ls = getChar()
in1 = ls[0]
in2 = ls[1]
chars2string(in1, in2)
if __name__ == '__main__':
main()
Explanation:
The programming language used is python 3.
The script first defines a function getChar and makes use of a while loop in combination with try and except blocks and IF statements, the code ensures that both inputs that are entered by the user after the prompt are 1 in length. i.e. Just one character. This function returns the two characters that were entered.
The second function that is defined is chars2string this function takes two arguments, It repeats each argument five times and returns a joined string.
Finally, the main function is defined and it calls the getChar function first, the values that are returned by this function is assigned to two variables, that is then passed on to the chars2string function. The main function is called and the Joined string is printed to the screen.
Three-phase electric power is a common method of alternating current electric power generation, transmission, and distribution. It is a type of polyphase system and is the most common method used by electrical grids worldwide to transfer power. It is also used to power large motors and other heavy loads.
A three-wire three-phase circuit is usually more economical than an equivalent two-wire single-phase circuit at the same line to ground voltage because it uses less conductor material to transmit a given amount of electrical power. Polyphase power systems were independently invented by Galileo Ferraris, Mikhail Dolivo-Dobrovolsky, Jonas Wenström, John Hopkinson and Nikola Tesla in the late 1880s.
Answer:
Computer hardware engineer
Systems analyst
Database administrator
