Explanation:
Both Primary Key and Candidate Key are the attributes that are used to access tuples from a table. These (Primary key and Candidate key) are also can be used to create a relationship between two tables.
- A Candidate Key can be any column or a combination of columns that can qualify as a unique key in the database. Each Candidate Key can qualify as a Primary Key.
- A Primary Key is a column or a combination of columns that uniquely identify a record. The primary key is a minimal super key, so there is one and only one primary key in any relationship.
<em> The main difference between them is that a primary key is unique but there can be many candidate keys. </em>
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Answer:
The correct answer is search parameters set to identify specific information during Internet searches.
Explanation:
A Boolean operator is used to connect words or symbols that allows setting search parameters to include or exclude items in a text search.
The booleans operators are:
Answer:
A then B
Explanation:
i got the qeshtoin wrong to get the anwser
Answer:
I think the above information will help you a lot.
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<span>In excel, by default, the text is Left-alligned in a cell.
Usually, the text really is in left-aligned even in word documents.
It's up to the user's preference to change the alignment of the text or do changes in any design.</span>
