SapMicroOrm

Retrieve data from SAP tables using LINQ-like syntax.

• It's simple compact and easy to use.
• Performance in mind, it uses FastMember to map to POCOs at lightning speed.
• No limit in terms on how big the table is, if you have used RFC_READ_TABLE you probably know that rows larger than 512 bytes will result in an exception, with this library forget about this limitation.
• Works out of the box; No need to modify your SAP instance.
• Convention over configuration

Prerequisites

Have the following SAP .dlls installed in your project:

1. sapnco.dll
2. sapnco_utils.dll

To comply with SAP licensing terms, these .dlls aren’t included in this library, you need to manually download them from SAP portal and install them. Remember to configure your build options to use x86 or x64 depending on the SAP .dlls architecture.

Installing

Use Nuget to download and install this library, there are 2 ways.

• 1st option: In Visual Studio right click your project -> Manage Nuget packages -> Browse. Search and install SapMicroOrm package.

• 2nd option: In Visual Studio -> Tools -> Nuget Package Manager -> Package Manager Console. Execute the following command:

Install-Package SapMicroOrm

Getting started

First reference SapMicroOrm in your code:

using SapMicroOrm;

A table is mapped to a POCO, for this example lets create our POCO for MARA table:

public class MARA
{
    public string MATNR { get; set; }
    public string MTART { get; set; }
    public string MATKL { get; set; }

    //Omitted the rest of the columns for simplicity
}

Alternatively, a more readable version:

[Alias("MARA")]
public class Material
{
    [Alias("MATNR")]
    public string Id { get; set; }

    [Alias("MTART")]
    public string Type { get; set; }

    [Alias("MATKL")]
    public string Group { get; set; }

    //Omitted the rest of the columns for simplicity
}

Now lets create our usual RfcDestination and retrieve some records:

var sapConn = RfcDestinationManager.GetDestination(...);
            
List<MARA> materials = sapConn
    .From<MARA>()
    .Where("MATNR = '33916'")
    .SelectAllColumns();

That's it! As you can see the name of the table was taken from the name of the Class (MARA) and the name of the columns were taken from the name of the properties. If Alias is set the name ist taken from there.

Having trouble setting up your project? Refer to this working solution example.

More examples

Retrieve all columns (SELECT * ...)

List<MARA> materials = sapConn
    .From<MARA>()
    .SelectAllColumns();

Retrieve specific columns

List<MARA> materials = sapConn
    .From<MARA>()
    .Select("MATNR, MTART"); //You can pass an array of strings too

Note: Properties not included in the select will have the initial value in the POCO.

Add conditions (WHERE ...)

List<MARA> materials = sapConn
    .From<MARA>()
    .Where("MATNR = '33916' OR MATNR LIKE '%abc%'")
    .SelectAllColumns();

Joins

Unfortunately, SAP doesn’t provide a way to natively execute joins from a remote client. We can simulate it in the following way:

List<MARA> materialHeaders = sapConn
    .From<MARA>()
    .SelectAllColumns();

List<MARC> materials = sapConn
    .From<MARC>()
    .Where(materialHeaders.Select(mh => $"MATNR = '{mh.MATNR}'")) // <- Join here
    .SelectAllColumns();

Order by

var materials = sapConn
    .From<MARA>()
    .SelectAllColumns()
    .OrderBy(m => m.MTART); // <- Standard LINQ OrderBy

Group by

var materials = sapConn
    .From<MARA>()
    .SelectAllColumns()
    .GroupBy(m => m.MTART); // <- Standard LINQ GroupBy

Table and column alias

If you want to have different names in your POCOs use Alias:

[Alias("MARA")]
public class Material
{
    [Alias("MATNR")]
    public string Id { get; set; }

    [Alias("MTART")]
    public string Type { get; set; }

    [Alias("MATKL")]
    public string Group { get; set; }

    //Omitted the rest of the columns for simplicity
}

Next steps

1. Add support to call arbitrary RFCs
2. Add support to call queries
3. Add tests

Changelog

1.1.2 Initial version

License

This project is licensed under the MIT License - see the license for details