Modified original GIST to accommodate c# nullable types (?).

TSQL-to-POCO.sql

declare @tableName varchar(200)
declare @columnName varchar(200)
declare @nullable varchar(50)
declare @datatype varchar(50)
declare @maxlen int

declare @sType varchar(50)
declare @sProperty varchar(200)

DECLARE table_cursor CURSOR FOR 
SELECT TABLE_NAME
FROM [INFORMATION_SCHEMA].[TABLES] where table_name = 'TABLE NAME'

OPEN table_cursor

FETCH NEXT FROM table_cursor 
INTO @tableName

WHILE @@FETCH_STATUS = 0
BEGIN

PRINT 'public class ' + @tableName + ' {'

    DECLARE column_cursor CURSOR FOR 
    SELECT COLUMN_NAME, IS_NULLABLE, DATA_TYPE, isnull(CHARACTER_MAXIMUM_LENGTH,'-1') 
  from [INFORMATION_SCHEMA].[COLUMNS] 
	WHERE [TABLE_NAME] = @tableName
	order by [ORDINAL_POSITION]

    OPEN column_cursor
    FETCH NEXT FROM column_cursor INTO @columnName, @nullable, @datatype, @maxlen

    WHILE @@FETCH_STATUS = 0
    BEGIN

	-- datatype
	select @sType = case @datatype
	when 'int' then
		case when @nullable = 'YES' then 'int?'
		else 'int'
		END
	when 'smallint' then
		case when @nullable = 'YES' then 'Int16?'
		else 'Int16'
		END
	when 'decimal' then
		case when @nullable = 'YES' then 'decimal?'
		else 'decimal'
		END
	when 'money' then
		case when @nullable = 'YES' then 'decimal?'
		else 'decimal'
		END
	when 'char' then 'string'
	when 'nchar' then 'string'
	when 'varchar' then 'string'
	when 'nvarchar' then 'string'
	when 'uniqueidentifier' then 
		case when @nullable = 'YES' then 'Guid?'
		else 'Guid'
		END
	when 'datetime' then
		case when @nullable = 'YES' then 'DateTime?'
		else 'DateTime'
		END
	when 'bit' then
		case when @nullable = 'YES' then 'bool?'
		else 'bool'
		END
	else 'string'
	END

		If (@nullable = 'NO')
			PRINT '[Required]'
		if (@sType = 'String' and @maxLen <> '-1')
			Print '[MaxLength(' +  convert(varchar(4),@maxLen) + ')]'
		SELECT @sProperty = 'public ' + @sType + ' ' + @columnName + ' { get; set;}'
		PRINT @sProperty

		print ''
		FETCH NEXT FROM column_cursor INTO @columnName, @nullable, @datatype, @maxlen
	END
    CLOSE column_cursor
    DEALLOCATE column_cursor

	print '}'
	print ''
    FETCH NEXT FROM table_cursor 
    INTO @tableName
END
CLOSE table_cursor
DEALLOCATE table_cursor