Converting data types from oracle to sql server in an asp net project


When working on an ASP.NET project, it is common to encounter situations where data needs to be converted from one data type to . This is especially true when dealing with databases, such as Oracle and SQL Server. In this article, we will explore how to convert data types from Oracle to SQL Server in an ASP.NET project, and provide examples to illustrate the .

Step 1: Understanding the Data Types

Before we dive into the conversion process, it is important to have a clear understanding of the data types used in both Oracle and SQL Server. While some data types may have similar , their underlying representations and behaviors can differ. Therefore, it is crucial to map the data types correctly to ensure accurate conversion.

Step 2: Oracle Data Types to SQL Server Data Types

Once we have a good understanding of the data types, we can proceed with mapping Oracle data types to their SQL Server data types. Here are some common mappings:

  • Oracle NUMBER -> SQL Server DECIMAL
  • Oracle VARCHAR2 -> SQL Server VARCHAR
  • Oracle DATE -> SQL Server DATETIME

It is important to note that this is not an exhaustive list, and there may be additional mappings depending on the specific data types used in your project.

Step 3: Converting Data Types in ASP.NET

Now that we have the mappings in place, let's see how we can convert data types in an ASP.NET project. Here's an :

// Oracle data type
decimal oracleNumber = 123.45;

// SQL Server data type
decimal sqlServerDecimal = Convert.ToDecimal(oracleNumber);

In the above example, we have an Oracle NUMBER data type stored in the variable “oracleNumber”. We can use the Convert.ToDecimal() method to convert it to a SQL Server DECIMAL data type and store the result in the variable “sqlServerDecimal”.

Step 4: Handling Data Type Conversion

While most data type conversions will work seamlessly, there may be cases where the conversion fails due to incompatible data or other issues. It is important to handle errors gracefully to prevent application crashes or data corruption.

One way to handle conversion errors is by using exception handling. Here's an example:

    decimal sqlServerDecimal = Convert.ToDecimal(oracleNumber);
catch (Exception ex)
    // Handle the conversion error
    Console.WriteLine("Error converting data type: " + ex.Message);

In the above example, we wrap the conversion code in a try-catch block. If an exception during the conversion, the catch block will be executed, allowing us to handle the error appropriately.


Converting data types from Oracle to SQL Server in an ASP.NET project is a common task that requires careful mapping and handling of potential conversion errors. By understanding the data types, mapping them correctly, and using appropriate conversion , we can ensure accurate and reliable data conversion. Remember to handle any conversion errors gracefully to maintain the stability and integrity of your application.

Rate this post

Leave a Reply

Your email address will not be published. Required fields are marked *

Table of Contents