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Anastasy [175]
3 years ago
5

Suppose that we have a ternaryrelationship R between entity sets A, B, and C such that (i) A has a key constraint; and (ii) Chas

a key constraintand total participation. These are the only constraints. A has attributes a1 and a2, with a1 being the key; B has attributes b1 and b2, with b1 being the key; and C has attributes c1and c2, with c1 being the key. R has no descriptive attributes. All of the above-mentioned attributes are to be stored as Strings of 10 characters. Write SQL statements that create tables corresponding to this information so as to capture as many of the constraints as possible. If you cannot capture some constraint, explain why.
Computers and Technology
1 answer:
lutik1710 [3]3 years ago
3 0
Lol i mean it could definitely be any of the choices lol i don’t have a clue lol
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Which method can be used to write data to a text file opened with the BufferedWriter object outfile?
maksim [4K]

Answer:

Option (d) outfile.write();

Explanation:

As the object created for the class BufferedWriter is outfile, outfile.write is the correct syntax for writing in a text file. Here, write is the method used for writing into a text file. The data present is written in the textfile. Here, the text file is opened before writing the text into the file. Option (d) is correct.

Option (a) outfile.newLine(); is used to separate the lines. This is used to break the existing lines into smaller lines. This can also be used to start a new line. Here, newLine() is the method.So, option (a) is not suitable.

Option (b) outfile.existLine(); This is not a valid syntax as there is no method called existLine() in the class BufferedWriter. So, this is a wrong option.

Option (c) Write(outfile); This is not a valid syntax for writing in a text file. This is a wrong option.

7 0
3 years ago
A storyboard is an example of an implementation tool.<br><br> A.<br> True<br><br> B.<br> False
Phantasy [73]
A True A storyboard is hardware installed directly onto the motherboard or using a <span>Peripheral device</span>
4 0
3 years ago
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What is an individual section machine?
irina1246 [14]
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3 years ago
Create a Python program in a file named loops1.py that does the following: a. Use a while loop to keep asking the user for input
Rashid [163]

Answer:

mystr = input("Enter a string ")

length = len(mystr)

while length<10:

   mystr = input("Enter a string ")

   length = len(mystr)

   if(length>=10):

       break

if len(mystr)%2==0:

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else:

   print(mystr.upper())

Explanation:

The variable mystr is used to save user's input which is received with the input function

A second variable length is used to save the length of the input string Using a while statement the user is continually prompted to enter a string while length is less than 10.

If length is greater or equal to 10. We check for even or odd using the modulo (%) operator.

We use lower() and upper() to change the case of the string

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krok68 [10]
The answer would be a C class fire extinguisher. 
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