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blagie [28]
4 years ago
15

What does it mean to compact and repair your database? What is the difference between a single

Computers and Technology
1 answer:
lara [203]4 years ago
3 0

Answer:

  The utility of the compact database decreases the size of the given database by making a definite copy of our database in the system while likewise free the given database by overabundance space created by erasing and modifying the information.

Compacting is one of the best way to diminish the physical size of the database. The compact is the process which compress the database and also precise the information of our database.

It basically makes our data small by eliminating some extra space in the system and repairing process mainly improve the performance of the database.

The main difference between the single compact and a compact on close means that the database will be automatically compact when we close the database and single compact means we select the particular database to make it compact.

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The program written in Python where comments are used to explain each line is as follows:

<em />

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Write a script that creates a user-defined database role named OrderEntry in the MyGuitarShop database. Give INSERT and UPDATE p
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Answer:

USE MyGuitarShop ;

CREATE ROLE OrderEntry ;

GRANT INSERT ON Orders ,OrderItems  TO OrderEntry ;

GRANT UPDATE ON Orders ,OrderItems TO OrderEntry ;

GRANT SELECT ON Orders ,OrderItems TO ALL;

Explanation:

USE MyGuitarShop ;

This statement is used to make MyGuitarShop  as the current database

CREATE ROLE OrderEntry ;

This statement creates new role called "OrderEntry".Roles are useful in database to grant permissions for users on particular objects of the database.

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