group user assignment apis

src/Sql/dbo/Stored Procedures/GroupUser_ReadGroupIdsByOrganizationUserId.sql

@@ -0,0 +1,13 @@
+CREATE PROCEDURE [dbo].[GroupUser_ReadGroupIdsByOrganizationUserId]
+    @OrganizationUserId UNIQUEIDENTIFIER
+AS
+BEGIN
+    SET NOCOUNT ON
+
+    SELECT
+        [GroupId]
+    FROM
+        [dbo].[GroupUser]
+    WHERE
+        [OrganizationUserId] = @OrganizationUserId
+END