Answer:
Referencial Integrity Contraint
Explanation:
The referential integrity constraint states that the customer ID i.e (CustID) in the Order table must match a valid CustID in the Customer table. Most relational databases have declarative referential integrity. That is to say, when the tables are created the referential integrity constraints are set up so as to maintain the quality of information.
Respect others.
This means that it is important to make sure that your interactions with other internet users are based on respect for each other's resources. This includes time, bandwidth, and even emotions. Ensure that the information you are sharing is of value to the intended recipients and is sent in a timely manner. Treat other online users as you'd have them treat you.
Visualize your online conversations as you would real life conversations. Avoid being offensive and be accommodating of other peoples shortcomings. Also keep in mind who is part of the forum you are interacting with so as to use appropriate language.
Answer:
The great thing about a cruise holiday is that everyone in your party can please themselves yet still have a real holiday together. The kids can make new friends and take part in fun and educational activities during the day, while the adults unwind by the pool, learn a new skill or hit the casino.
Answer:
See explaination
Explanation:
def readFileFirstLast(filename):
# doc string
''' Function accept the filename and opens the fle
and reads all lines and strips new line character and
stores first and last in a string and return that string'''
#eception handle if file not found
try:
#opening the file
f = open(filename)
#reading the first line and striping the ne line
string = f.readline().strip()
#iterating until last line
for line in f:
pass
#concate the last line after strip the new line character to the string
string = string + " " + line.strip()
#return the string
return string
except:
#if file not found
return "File not found"
#taking the file name from user
filename = input("Enter a file name: ")
#printing the doc string in function
print("\ndoc_sting: \n"+ readFileFirstLast.__doc__+"\n")
#printing the returned string by calling the readFileFirstLast()
print("output string :")
print(readFileFirstLast(filename))
<span>A network with 6 bits remaining for the host portion will have 62 usable hosts. The netmask is </span><span>255.255.255.192/26, the shorthand is [6-bit] which is equal to the number of addresses as <span>= 62 hosts + 1 bcast + 1 net base</span></span>