FluentSqlBuilder 1.0.0-alpha

This is a prerelease version of FluentSqlBuilder.
dotnet add package FluentSqlBuilder --version 1.0.0-alpha
NuGet\Install-Package FluentSqlBuilder -Version 1.0.0-alpha
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="FluentSqlBuilder" Version="1.0.0-alpha" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add FluentSqlBuilder --version 1.0.0-alpha
#r "nuget: FluentSqlBuilder, 1.0.0-alpha"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install FluentSqlBuilder as a Cake Addin
#addin nuget:?package=FluentSqlBuilder&version=1.0.0-alpha&prerelease

// Install FluentSqlBuilder as a Cake Tool
#tool nuget:?package=FluentSqlBuilder&version=1.0.0-alpha&prerelease

Sql Builder

Welcome to the readme of Sql Builder. This is a library that allows developers to build a Sql Command or Sql Statement with Parameters using a strongly typed system similiar to LINQ without the hassle of creating/maintaining a db context.

Example:

All values supplied will be transformed to parameters. Therefore you won't have to worry about SQL Injection.

using (var connection = new SqlConnection())
{
    var command = connection.Build()
                    .From<Person>()
                    .Join<Work>((person,work) => person.WorkId == work.WorkId)
                    .Join<Person>((person, work,person2)=> person.Id == person2.Id)
                    .Where((person, work, person2) => person2.Age.In(new int[] { 1, 2 }))
                    .Select((person, work, person2) => new { person.Id, person.Name })
                    .ToSqlCommand();
}

SELECT [Person].[Id], [Person].[Name] FROM [Person] JOIN [Work] AS [Work] ON [Person].[WorkId] = [Work].[WorkId] JOIN [Person] AS [Person1] ON [Person].[Id] = [Person1].[Id] WHERE [Person1].[Age] IN (@P1,@P2)

Currently it only supports SQL Server. All the functions can be concatenated with eachother to freely buld your own query.

You can install Sql Builder through nuget.

How to use Sql Builder?

Building a query always starts with the From<T>() function and ends with the Select() function similiar to LINQ.

Basic Select query.

using (var connection = new SqlConnection())
{
    var command = connection.Build()
                    .From<Person>()
                    .Select(person => new { person.Id })
                    .ToSqlCommand();
}

SELECT [Person].[Id] FROM [Person]

You can add more columns to the select function by simply expanding the anonymous object within the Select function.

using (var connection = new SqlConnection())
{
    var command = connection.Build()
                    .From<Person>()
                    .Select(person => new { person.Id, person.Name })
                    .ToSqlCommand();
}

SELECT [Person].[Id], [Person].[Name] FROM [Person]

Adding a Where Clause.

Parameters used within the where clause will automatically be added to the command with its appropriate value to prevent SQL Injection.

using (var connection = new SqlConnection())
{
    var command = connection.Build()
                    .From<Person>()
                    .Where((person) => person.Salary > 5000)
                    .Select(person => new { person.Id, person.Name })
                    .ToSqlCommand();
}

SELECT [Person].[Id], [Person].[Name] FROM [Person] WHERE [Person].[Salary] > @P1

There's also support for In, Not In, Like, Not Like, Between, Not Between

using (var connection = new SqlConnection())
{
    IEnumerable<int> ages = new int[] { 1, 2 };
    var command = connection.Build()
                    .From<Person>()
                    .Where((person) => person.Age.In(ages))
                    .Select(person => new { person.Id, person.Name })
                    .ToSqlCommand();
}

SELECT [Person].[Id], [Person].[Name] FROM [Person] WHERE [Person].[Age] IN (@P1,@P2)

using (var connection = new SqlConnection())
{
    var command = connection.Build()
                    .From<Person>()
                    .Where((person) => person.Name.Like("base%"))
                    .Select(person => new { person.Id, person.Name })
                    .ToSqlCommand();
}

SELECT [Person].[Id], [Person].[Name] FROM [Person] WHERE [Person].[Age] LIKE @P1

using (var connection = new SqlConnection())
{
    var command = connection.Build()
                    .From<Person>()
                    .Where((person) => person.Age.Between(1,2))
                    .Select(person => new { person.Id, person.Name })
                    .ToSqlCommand();
}

SELECT [Person].[Id], [Person].[Name] FROM [Person] WHERE [Person].[Age] BETWEEN @P1 AND @P2

Joining other tables

using (var connection = new SqlConnection())
{
    var command = connection.Build()
                    .From<Person>()
                    .Join<Work>((person,work) => person.WorkId == work.WorkId)
                    .Select((person, work) => new { person.Id, person.Name, work.Address })
                    .ToSqlCommand();
}

SELECT [Person].[Id], [Person].[Name], [Work].[Address] FROM [Person] JOIN [Work] AS [Work] ON [Person].[WorkId] = [Work].[WorkId]

There's also support for self-joining

using (var connection = new SqlConnection())
{
    var command = connection.Build()
                    .From<Person>()
                    .Join<Person>((person, person2) => person.WorkId == person2.WorkId)
                    .Select((person, person2) => new { person.Id, person2.Name })
                    .ToSqlCommand();
}

SELECT [Person].[Id], [Person1].[Name] FROM [Person] JOIN [Person] AS [Person1] ON [Person].[WorkId] = [Person1].[WorkId]

You can join multiple tables aswell by using the Join function over and over.

using (var connection = new SqlConnection())
{
    var command = connection.Build()
                    .From<Person>()
                    .Join<Person>((person, person2) => person.WorkId == person2.WorkId)
                    .Join<Person>((person, person2,person3) => person.Name == person3.Name)
                    .Select((person, person2, person3) => new { person.Id, person2.Name , person3.Age })
                    .ToSqlCommand();
}

SELECT [Person].[Id], [Person1].[Name], [Person2].[Age] FROM [Person] JOIN [Person] AS [Person1] ON [Person].[WorkId] = [Person1].[WorkId] JOIN [Person] AS [Person2] ON [Person].[Name] = [Person2].[Name]

Adding a Group By Clause

using (var connection = new SqlConnection())
{
    var command = connection.Build()
                    .From<Person>()
                    .GroupBy((person) => new { person.Age })
                    .Select(person => new { person.Id, person.Name })
                    .ToSqlCommand();
}

SELECT [Person].[Id], [Person].[Name] FROM [Person] GROUP BY [Person].[Age]

There's also support to do Group By on multiple columns.

using (var connection = new SqlConnection())
{
    var command = connection.Build()
                    .From<Person>()
                    .GroupBy((person) => new { person.Age , person.Name })
                    .Select(person => new { person.Id, person.Name })
                    .ToSqlCommand();
}

SELECT [Person].[Id], [Person].[Name] FROM [Person] GROUP BY [Person].[Age], [Person].[Name]

Adding an Order By Clause

using (var connection = new SqlConnection())
{
    var command = connection.Build()
                    .From<Person>()
                    .GroupBy((person) => new { person.Age , person.Name })
                    .Select(person => new { person.Id, person.Name })
                    .ToSqlCommand();
}

SELECT [Person].[Id], [Person].[Name] FROM [Person] ORDER BY [Person].[Age]

There's also support to do Order By on multiple columns.

using (var connection = new SqlConnection())
{
    var command = connection.Build()
                    .From<Person>()
                    .OrderBy((person) => new { person.Age , person.Salary })
                    .Select(person => new { person.Id, person.Name })
                    .ToSqlCommand();
}

SELECT [Person].[Id], [Person].[Name] FROM [Person] ORDER BY [Person].[Age], [Person].[Salary]

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
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Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
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Version Downloads Last updated
1.0.0-alpha 307 6/27/2020

Alpha release as a proof of concept.