Using php and sql:  Create a PDO object to connect to your database for running select queries. Write a database query to output all the messages in the messages table.

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A: The correct answer is given below with explanation

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A: The answer for the above question is given in the following steps for your reference.

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A: The answer is

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A: Coded using C language.

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A: The question is to define abstract class.

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A: Solution:

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A: ANSWER:-

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Q: What is open source in computer science?

A: please check the solution below

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A: The above question is solved in step 2 :-

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A: To define Failover-Clustering.

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Single Table

In a database management system, a single table is designed to obtain data of heterogeneous items. A single-table design with DynamoDB resolves the issue of raising multiple requests for the relevant data of an entity.