When inserting a row into a table,how can you indicate that a row contains a NULL value?
A) In the VALUES clause,substitute two single quotation marks for the NULL value.
B) In the VALUES clause,include the keyword NULL in the position where the value should be listed.
C) In the VALUES clause,include a blank space in the position where the value should be listed.
D) both a and b

Question

When inserting a row into a table,how can you indicate that a row contains a NULL value?​
A) ​In the VALUES clause,substitute two single quotation marks for the NULL value.
B) ​In the VALUES clause,include the keyword NULL in the position where the value should be listed.
C) ​In the VALUES clause,include a blank space in the position where the value should be listed.
D) ​both a and b

Quizplus · Accepted Answer

In the VALUES clause, you can indicate that a row contains a NULL value by either substituting two single quotation marks or including the keyword NULL in the position where the value should be listed. Therefore, both options A and B are correct. Option C is incorrect as including a blank space would simply insert an empty string value, not a NULL value.

When Inserting a Row into a Table,how Can You Indicate