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wariber [46]
2 years ago
10

A(n) ____ value is not allowed in an index if the setting for the primary property is yes.

Social Studies
1 answer:
Elena-2011 [213]2 years ago
7 0

A(n) null value is not allowed in an index if the setting for the primary property is yes.

Null values ​​in relational databases are used when column values ​​are unknown or missing. null is neither an empty string (for character or datetime data types) nor a null value (for numeric data types).

A null value indicates a missing value. This is different from null values. For example, consider the question, "How many books does Adam have?" The answer is either "null" (I know he has none) or "null" (I don't know how many he has).

Learn more about null value here:brainly.com/question/17438457
#SPJ4

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30 POINTS HELP :(
hichkok12 [17]

Answer:

The correct answer is D) "Blacks have had to learn to protect themselves by being cynical but not cynical enough to slam the door on potential opportunities."

Explanation:

The detail that best supports the idea that Jackie Robinson is skeptical about change is "Blacks have had to learn to protect themselves by being cynical but not cynical enough to slam the door on potential opportunities."

Jackie Robinson was a great African American athlete. On April 15, 1947, he was the first black player in the Major League Baseball. This had some significance in the desegregation in professional sports in that his signing in MLB allowed other minorities athletes to be hired.  

Jackie wrote his autobiography called "I Never Had it Made," where the expert of the question is taken from.

Read more on Brainly.com - brainly.com/question/8305607#readmore

3 0
4 years ago
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The most unpredictable presentation aid a speaker could use is
irina1246 [14]
<span>The most unpredictable presentation aid a speaker could use is a person or an animal.
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4 0
3 years ago
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-BARSIC- [3]

Answer:

I think it is D

Explanation:

6 0
3 years ago
Each of the following was an effect of the climate change that occurred after the last Ice Age except __________. A. new grassla
lubasha [3.4K]

Answer: The correct answer is letter B.

Explanation:

The climate change does not interfere in the increasing population because it does not bring any positive conditions to that. Actually it brings more difficulty, considering that is harder get food or good conditions of live (rivers are low and the climate unstable). When have strong's climate change peoples are forced to start again your lives or change of city/country to looking for better conditions of live.

4 0
3 years ago
What is (2 1/2) × -8=
LenKa [72]
-20 because when you turn the fraction into a decimal which would be 2.5 then you multiply it by -8 it =-20
5 0
4 years ago
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