Answer:
Explanation:
Duplicate tuples are not allowed in a relation because the specifications of the constraints of the regional integrity are violated, especially the main constraint that states that there can be no identical values for the attributes of two tuples at any database relation state.
Also, duplicate tuples are not allowed in a relation due to the fact that they lead to redundancy of the data base which in turn, slowing down the speed of the database when data processing such as inserting, querying, updating, deleting, etc are being performed.
Answer:
The question is a bit unclear. Are you asking how to add these values in this 2D array?
Explanation:
Answer:
Click the Home tab, click Format, click Rename Sheet, type the name, and press Enter
Explanation:
im not really sure but i think this is the answer
have a good day
Answer:
Click the Insert Table button on the Standard Toolbar. Drag over the grid that appears to select the number of rows and columns you want. To use automatic formatting, choose Table AutoFormat from the Table menu. Select several Formats from the menu on the left to see how the table will look.
Answer: An undirected graph is the graph that has the connection of the objects in the form of bidirectional edges.This graph is formed for by the attachment of the collection of the objects which get displayed in the form of network and thus, also known as the undirected graph.
The graph is formed by the nodes or objects getting connected and form edges or link(which is typically in the form of line).
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