Answer:
Are there supposed to be answer choices with this question?
Child labor laws are basically laws placing restrictions and regulations on the work of minors.
Answer: A. Validation rule
Explanation:
Validation rules can be used to ensure that fields are populated because they can verify if the data being inputted meet the requirements of the administrators by returning a 'True' or 'False' response after testing. If the result is false, the user will be unable to move on until they adjust the field.
For example, Field length checks on websites are a Validation rule where you are only allowed to input a set number of characters and anything less or more will be denied, such as in the case of inputting phone numbers.
By including a Validation Rule that the LeadSource field of the Lead record be populated when a Lead is converted, the developer will be able to make sure that a user populates the Lead Source field prior to converting a Lead.
Answer:
b. foreign key
Explanation:
In the database world, a foreign key is a field on one table and a primary key for another table. The purpose of a foreign key is to provide linkages between two or more tables. Given two tables A and B, and making A the point of reference, a primary key is a field that is unique in A while a foreign key is unique in B.
On another hand, a composite primary key is a combination of two or more fields/columns on database table that can be used to uniquely identify each row in the table.
In the database lingua, what we have is a unique key not a distinct key, though the two words are similar in meaning.
A duplicate key is used when an information may be repeatedly entered on a table.
So the correct option is a foreign key.
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Answer:
no
Explanation:
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