Sql Connect example

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2017-12-31 16:43:48 +00:00
parent d97260b7aa
commit 871d7a90bc
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using System;
using System.Data.SqlClient;
namespace SqlConnector
{
class Program
{
static void Main(string[] args)
{
// Annouce search
Console.WriteLine("Searching for all users in SQL database...");
// Open connection to SQL Server
using (var sqlConnection = new SqlConnection("Server=.;Database=test;User Id=testuser; Password = testuser;"))
{
// Log it
Console.WriteLine("Opening connection...");
// Attemp to open connection
sqlConnection.Open();
// Inject a user into the database
// NOTE: Command this out once it has run once if you don't want
// to re-adding users every time you run
using (var command = new SqlCommand($"INSERT INTO dbo.Users (Id, Username, FirstName, LastName, IsEnabled, CreatedDateUtc) VALUES ('{Guid.NewGuid().ToString("N")}', 'Username1', 'My first name', 'My last name', 1, '10/12/2025 12:32:10 +01:00')", sqlConnection))
{
// Log it
Console.WriteLine("Adding new user...");
// Execute INSERT command
var result = command.ExecuteNonQuery();
// Log what should be "1 user added"
Console.WriteLine($"{result} user added");
}
// Select all users from database
using (var command = new SqlCommand("SELECT * FROM dbo.Users", sqlConnection))
{
// Log it
Console.WriteLine("Selecting all users...");
// Execute selection as a reader to read each row...
using (var reader = command.ExecuteReader())
{
// While we have a result
while (reader.Read())
{
Console.WriteLine($"Username: {reader["Username"]}, First Name: {reader["FirstName"]}, LastName: {reader["LastName"]}, IsEnabled: {reader["IsEnabled"]}");
}
}
}
}
// Log it
Console.WriteLine("Done. Press any key to exit...");
// Keep window open
Console.Read();
}
}
}

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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>netcoreapp2.0</TargetFramework>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="System.Data.SqlClient" Version="4.4.2" />
</ItemGroup>
</Project>