text: 
  -- Name: example-cd26ae6d-1490-4219-9f66-414a6c96a0a4
  -- Date: 5/3/2018 2:38:06 PM
  -- Author: BaoChau
  ----------------------------
  -- Migration up goes here.
  ----------------------------
  ALTER TABLE [core_entities] ADD [SourceViewName] NVARCHAR(60);
  ALTER TABLE [core_entities] ADD [OldValueTableName] NVARCHAR(60);
  ALTER TABLE [core_entities] ADD [NewValueTableName] NVARCHAR(60);
  ALTER TABLE [core_entities] ADD [ValueTableName] NVARCHAR(60);
  
  ALTER TABLE [core_attributes] ADD [SourceViewName] NVARCHAR(60);
  ALTER TABLE [core_attributes] ADD [OldValueTableName] NVARCHAR(60);
  ALTER TABLE [core_attributes] ADD [NewValueTableName] NVARCHAR(60);
  ALTER TABLE [core_attributes] ADD [ValueTableName] NVARCHAR(60);
  --Down--
  ----------------------------
  -- Migration down goes here.
  ----------------------------
  ALTER TABLE [core_entities] DROP COLUMN [SourceViewName];
  ALTER TABLE [core_entities] DROP COLUMN [OldValueTableName];
  ALTER TABLE [core_entities] DROP COLUMN [NewValueTableName];
  ALTER TABLE [core_entities] DROP COLUMN [ValueTableName];
  
  ALTER TABLE [core_attributes] DROP COLUMN [SourceViewName];
  ALTER TABLE [core_attributes] DROP COLUMN [OldValueTableName];
  ALTER TABLE [core_attributes] DROP COLUMN [NewValueTableName];
  ALTER TABLE [core_attributes] DROP COLUMN [ValueTableName];