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Nastasia [14]
3 years ago
5

Each of the following is a benefit provided by using views except for one. Which one is it? Group of answer choices a) You can u

se views to restrict access to the tables in your database to certain rows. b) You can code views that join tables. c) Views can be used to hide the complexity of retrieval operations. d) Views can be used to update multiple tables with a single statement.
Computers and Technology
1 answer:
Dmitry_Shevchenko [17]3 years ago
8 0

Answer:

The answer to this question can be given as:

In this question the option b,c, and d are correct.

Explanation:

A (DBMS) stands for a database management system. The DBMS is a software package that is used for crate, update, and delete. The database uses the SQL which stands for the structured query language. It is a programming language that uses the queries. These queries are used to providing many operations in the database like crate table, update table, join table, create a view of the table, etc. In the database, we can view the code of the join table and is also used to hide the complexity of retrieval operations, it can help in the update the table in a single statement.

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Explanation:

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4 years ago
Write a Python function called readlinesmton that accepts the name of the file (i.e. filename), starting line number (i.e. m) an
KatRina [158]

Answer:

Following are the code to the given question:

def readlinesmton(filename, m ,n):#defining a method that holds three parameters

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   e=len(l)#defining e variable lengths of the file  

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       s=1#use s variable that holds a value that is 1

   if(n < e):#defining n variable that checks n less than e

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   for i in range(s-1, e, 1):#defining for loop that calculates lines  

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Output:

Please find the ouput in the attached file.

Explanation:

In this code, a method "readlinesmton" is declared that takes three-parameter and inside the method, it uses the open method to open the file, read method to read the file, and len to calculate the length of the file and use the conditional statement to check the file inputs and use the loop to prints its values.    

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