How to Retrieve SQL Count Values as Integers in C#?

Capturing Results from an SQL Query: Retrieving Count Values

To effortlessly retrieve the count value from an SQL query into an integer variable in C#, utilize the SqlCommand.ExecuteScalar() method. This method executes the specified query and returns the first column's first row value.

Implementation:

To employ this technique, follow these steps:

1. Create a SqlCommand object and set its CommandText property to the desired SQL query, such as SELECT COUNT(*) FROM table_name.
2. Call the ExecuteScalar() method on the SqlCommand object. This action executes the query and returns the first cell value of the result set.
3. Cast the returned value to an integer type using the (Int32) operator.

Example Code:

using System;
using System.Data;
using System.Data.SqlClient;

class Program
{
    static void Main()
    {
        string connectionString = @"Data Source=(local);Initial Catalog=myDatabase;Integrated Security=SSPI;";
        using (SqlConnection connection = new SqlConnection(connectionString))
        {
            SqlCommand cmd = new SqlCommand("SELECT COUNT(*) FROM table_name", connection);
            Int32 count = (Int32)cmd.ExecuteScalar();
            Console.WriteLine($"The count of records in table_name is {count}");
        }
    }
}

By leveraging this technique, you can conveniently capture and store count values from SQL queries in your C# code.

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