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Leno4ka [110]
2 years ago
9

Which statements are true about a database?

Computers and Technology
2 answers:
anzhelika [568]2 years ago
6 0

Answer:

you cannot leave a field empty

you can enter data based on the defined data type

OverLord2011 [107]2 years ago
5 0

Answer:

You can enter data based on the defined data type.

A primary key uniquely identifies a record.

Explanation:

In a database, you can only enter data that matches the data type you have specified for that field. Therefore, you can enter text in fields with the text data type; numbers in fields with the number data type; or images in fields with the BLOb data type. You can have fields where data entry is optional. A primary key eliminates the chance of duplicate entries of the same record in a table.

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Given the following declaration, what is the value of b[ 1 ][ 0 ]? int b[ 2 ][ 2 ] = { { 1 }, { 3 , 4 } };
slavikrds [6]

Based on the declaration "int b[ 2 ][ 2 ] = { { 1 }, { 3 , 4 } };" given, the value of b[ 1 ][ 0 ] is equal to 3.

<h3>What is Python?</h3>

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Based on the declaration "int b[ 2 ][ 2 ] = { { 1 }, { 3 , 4 } };" given, we can infer and logically deduce that the value of b[ 1 ][ 0 ] is equal to 3.

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Dynamic addressing: __________.
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3 years ago
Write a program that prints the Grade based on the given data. 95-100: A+ 90-94: A 80-89: B+ 70-79: B 60-69: C+ 50-59: C &lt;49
mr Goodwill [35]

Answer:

The program to this question as follows:

Program:

score=int(input("Enter your percentage: ")) #input grade by user

#using conditional statement for match condition  

if 95<=score <= 100: #if value in between 95 to 100

   grade = 'A+' #assign grade

elif 90 <=score <= 94: #elif value in between 90 to 94

   grade = 'A' #assign grade

elif 80 <=score <= 89:  #elif value in between 80 to 89

   grade = 'B+' #assign grade

elif 70 <=score <= 79:  #elif value in between 70 to 79

   grade = 'B' #assign grade

elif 60 <=score <= 69:  #elif value in between 60 to 69

   grade = 'C+' #assign grade

elif 50 <=score <= 59:  #elif value in between 50 to 59

   grade = 'C' #assign grade

elif score<49 :  #elif value is less then 49

   grade = 'F' #assign grade

print (grade) #print grade

Output:

Enter your percentage: 50

C

 Explanation:

In the above python code, a variable "score" is defined, this variable is used for taking value from the user end. In the next step if-elif-else conditional statement is used, this statement is used when a group of statements is given in which one is true. The if block check score value is between 95-100 if this is true it will print A+.

In elif block if the above condition is not true, then this condition will execute, in this block, there are multiple elif block is used that can be described as follows:

  • In the first block, if the value in between 90-94. It will print A.
  • In the second block, if the value in between 80-89. It will print B+.
  • In the third block, if value in between 70-79. It will print B.
  • In the fourth block, if value in between 60-69. It will print C+.
  • In the fifth block, if value in between 50-59. It will print C.
  • In the last, if the value of the score is less then 49. It will print F.
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3 years ago
Roark has just joined a company and in his role as a lead analyst, he will be responsible for determining which systems developm
hram777 [196]

Answer:

Agile/adaptive methods.

Explanation:

The user has just decided to join a firm and will also be accountable to determine whether that system development technique that group uses to establish the latest software for a significant medical distributor to his position as just a lead analyst.

After that, he consumes a week for the purpose to understand his group members for reason to know their strengths and weakness and how would they work under pressure.

So, the following method is required for him to understand about the disadvantages of each of them.

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3 years ago
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