Created
May 28, 2020 08:12
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Generate C# class from database table
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| --from SO: http://stackoverflow.com/questions/5873170/generate-class-from-database-table | |
| declare @TableName sysname = 'TableName' | |
| 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 'char' | |
| 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 |
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