Code First Migrations and Stored Procedures

Question

I have just created a database and done my first migration (just a simple table add). Now I want to add some stored procedures which I have just added by writing the sql an

Answer 1

I am using EF6 and the DbMigration class provides methods to Create/Alter/Delete stored procedures

• Create a new stored procedure

  public partial class MyFirstMigration : DbMigration
  {
      public override void Up()
      {
          // Create a new store procedure
          CreateStoredProcedure("dbo.DequeueMessages"
          // These are stored procedure parameters
          , c => new{                
              MessageCount = c.Int()
          },
          // Here is the stored procedure body
          @"
          SET NOCOUNT ON;
          SELECT TOP (@MessageCount)
              *
          FROM
              dbo.MyTable;
          ");
      }
  
      public override void Down()
      {
          // Delete the stored procedure
          DropStoredProcedure("dbo.DequeueMessages");                
      }
  }
  

• Modify a stored procedure

  public partial class MySecondMigration : DbMigration
  {
      public override void Up()
      {
          // Modify an existing stored procedure
          AlterStoredProcedure("dbo.DequeueMessages"
          // These are new stored procedure parameters
          , c => new{                
              MessageCount = c.Int(),
              StatusId = c.Int()
          },
          // Here is the new stored procedure body
          @"
          SET NOCOUNT ON;
          SELECT TOP (@MessageCount)
              *
          FROM
              dbo.MyTable
          WHERE
              StatusId = @StatusId;
          ");
      }
  
      public override void Down()
      {
          // Rollback to the previous stored procedure
          // Modify an existing stored procedure
          AlterStoredProcedure("dbo.DequeueMessages"
          // These are old stored procedure parameters
          , c => new{                
              MessageCount = c.Int()
          },
          // Here is the old stored procedure body
          @"
          SET NOCOUNT ON;
          SELECT TOP (@MessageCount)
              *
          FROM
              dbo.MyTable;
          ");              
      }
  }