Get C# class Declaration from SQL Table structure

Get C# class Declaration from SQL Table structure

------------ CODE ---------- to be executed in SQL ---------

declare @TableName sysname = 'Transaction_document'

declare @Result varchar(max) = 'public class ' + @TableName + '

{'

select @Result = @Result + '

    public ' + ColumnType + NullableSign + ' ' + ColumnName + ' { get; set; }

'

from

(

    select

        replace(col.name, ' ', '_') ColumnName,

        column_id ColumnId,

        case typ.name

            when 'bigint' then 'long'

            when 'binary' then 'byte[]'

            when 'bit' then 'bool'

            when 'char' then 'string'

            when 'date' then 'DateTime'

            when 'datetime' then 'DateTime'

            when 'datetime2' then 'DateTime'

            when 'datetimeoffset' then 'DateTimeOffset'

            when 'decimal' then 'decimal'

            when 'float' then 'float'

            when 'image' then 'byte[]'

            when 'int' then 'int'

            when 'money' then 'decimal'

            when 'nchar' then 'string'

            when 'ntext' then 'string'

            when 'numeric' then 'decimal'

            when 'nvarchar' then 'string'

            when 'real' then 'double'

            when 'smalldatetime' then 'DateTime'

            when 'smallint' then 'short'

            when 'smallmoney' then 'decimal'

            when 'text' then 'string'

            when 'time' then 'TimeSpan'

            when 'timestamp' then 'DateTime'

            when 'tinyint' then 'byte'

            when 'uniqueidentifier' then 'Guid'

            when 'varbinary' then 'byte[]'

            when 'varchar' then 'string'

            else 'UNKNOWN_' + typ.name

        end ColumnType,

        case

            when col.is_nullable = 1 and typ.name in ('bigint', 'bit', 'date', 'datetime', 'datetime2', 'datetimeoffset', 'decimal', 'float', 'int', 'money', 'numeric', 'real', 'smalldatetime', 'smallint', 'smallmoney', 'time', 'tinyint', 'uniqueidentifier')

            then '?'

            else ''

        end NullableSign

    from sys.columns col

        join sys.types typ on

            col.system_type_id = typ.system_type_id AND col.user_type_id = typ.user_type_id

    where object_id = object_id(@TableName)

) t

order by ColumnId

set @Result = @Result  + '

}'

print @Result

  

-------------------- RESULT --------------

public class proration_log

{

    public Guid Proration_Log_Key { get; set; }

    public string Text { get; set; }

    public DateTime? Create_Date { get; set; }

}