public override void AddForeignKey(string name, string primaryTable, string[] primaryColumns, string refTable,
		                                   string[] refColumns, ForeignKeyConstraint constraint)
		{
			GuardAgainstMaximumIdentifierLengthForOracle(name);

			if (ConstraintExists(primaryTable, name))
			{
				Logger.Warn("Constraint {0} already exists", name);
				return;
			}

			primaryTable = QuoteTableNameIfRequired(primaryTable);
			refTable = QuoteTableNameIfRequired(refTable);
			string primaryColumnsSql = String.Join(",", primaryColumns.Select(col => QuoteColumnNameIfRequired(col)).ToArray());
			string refColumnsSql = String.Join(",", refColumns.Select(col => QuoteColumnNameIfRequired(col)).ToArray());

			ExecuteNonQuery(String.Format("ALTER TABLE {0} ADD CONSTRAINT {1} FOREIGN KEY ({2}) REFERENCES {3} ({4})", primaryTable, name, primaryColumnsSql, refTable, refColumnsSql));
		}

			GenerateForeignKey(primaryTable, refTable, ForeignKeyConstraint.NoAction);
		}

		public void GenerateForeignKey(string primaryTable, string refTable, ForeignKeyConstraint constraint)

		public virtual void AddForeignKey(string name, string primaryTable, string[] primaryColumns, string refTable,
                                          string[] refColumns, ForeignKeyConstraint constraint)
		{
			if (ConstraintExists(primaryTable, name))
			{
				Logger.Warn("Constraint {0} already exists", name);
				return;
			}

			string constraintResolved = constraintMapper.SqlForConstraint(constraint);
			ExecuteNonQuery(
				String.Format(
					"ALTER TABLE {0} ADD CONSTRAINT {1} FOREIGN KEY ({2}) REFERENCES {3} ({4}) ON UPDATE {5} ON DELETE {6}",
					primaryTable, name, String.Join(",", primaryColumns),
					refTable, String.Join(",", refColumns), constraintResolved, constraintResolved));
		}

		public void GenerateForeignKey(string primaryTable, string refTable, ForeignKeyConstraint constraint)
		{
			// No Op
		}

		public void AddForeignKey(string name, string primaryTable, string[] primaryColumns, string refTable,
		                          string[] refColumns, ForeignKeyConstraint constraint)
		{
			// No Op
		}

		public override void AddForeignKey(string name, string primaryTable, string[] primaryColumns, string refTable,
		                                   string[] refColumns, ForeignKeyConstraint constraint)
		{
			// NOOP Because SQLite doesn't support foreign keys
		}

 public void GenerateForeignKey(string foreignTable, string primaryTable, ForeignKeyConstraint constraint)
 {
     _sqlServerTransformationProvider.GenerateForeignKey(foreignTable, primaryTable, constraint);
 }

 public void AddForeignKey(string name, string foreignTable, string foreignColumn, string primaryTable, string primaryColumn, ForeignKeyConstraint constraint)
 {
     _sqlServerTransformationProvider.AddForeignKey(name, foreignTable, foreignColumn, primaryTable, primaryColumn, constraint);
 }