Converting SQL Server Connections to Oracle Database Connections in ASP.NET Core MVC

A guide to modifying ASP.NET Core MVC methods for seamless integration with Oracle databases, focusing on connection adjustments and query execution.
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Converting SQL Server Connection to Oracle Database Connection (ASP.NET Core MVC & C# )

In the world of software development, it’s not uncommon to encounter the necessity of migrating databases from one system to another. For developers working with ASP.NET Core MVC applications, this can mean transitioning from a SQL Server connection to an Oracle Database connection. If you've found yourself in a similar situation, tackling the modifications required for your methods can be a daunting task. In this guide, we’ll explore how to effectively carry out this conversion, focusing specifically on your Get and Create methods.

Understanding the Problem

Your primary goal is to convert two methods into a format that is compatible with an Oracle Database. Your current methods are designed to interact with SQL Server, which employs specific commands and connection strings that are not directly applicable when working with Oracle. Below, we'll delve into the necessary changes you will need to make.

Existing SQL Server Methods

To clarify, here’s a brief overview of your existing methods:

CreateRow Method - This inserts a new row into the database.

GetPersonList Method - This retrieves a list of persons from the database.

Both methods currently utilize SqlConnection and SqlCommand, which need to be updated to their Oracle counterparts.

Modifying the Connection to Oracle

Change Your Connection String

The first step is to update your connection string for the Oracle database. The format differs significantly from SQL Server.

Here’s the connection string you’ve modified for Oracle:

[[See Video to Reveal this Text or Code Snippet]]

Use Oracle Data Access Classes

Replace the SQL Server data access classes with their Oracle equivalents:

SqlConnection becomes OracleConnection

SqlCommand becomes OracleCommand

SqlDataReader becomes OracleDataReader

Updated Create Method

Let’s now refactor your CreateRow method to work with Oracle databases:

[[See Video to Reveal this Text or Code Snippet]]

Updated Get Method

Now, let’s refine your GetPersonList method to retrieve data from Oracle:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

With these adjustments, your methods are now configured to interact with an Oracle database effectively. Remember that the primary focus during this transition is ensuring that you replace SQL Server specific classes and commands with those of Oracle.

Key Takeaways:

Update your connection string to reflect Oracle’s format.

Change your commands and data reader to their Oracle counterparts.

Make sure to use appropriate command types (e.g., CommandType.Text for standard queries).

Maintain consistent error handling and connection management practices.

By following these steps, you should be able to successfully convert your ASP.NET Core MVC application’s database connections from SQL Server to Oracle with ease. Happy coding!