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Generate C# Classes from table or Views
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create or ALTER procedure [dbo].[GenerateClass] (@TableName sysname = null, @GenerateProperties bit = 1, @PlainTextClass bit = 0) | |
as | |
BEGIN | |
declare @Result varchar(max) = 'namespace ' + replace(replace(replace(DB_NAME(),' ','_'),'.','_'),'~','_') + ' | |
{' | |
DECLARE the_cursor CURSOR FAST_FORWARD | |
FOR SELECT TABLE_NAME | |
FROM INFORMATION_SCHEMA.TABLES | |
WHERE (TABLE_TYPE = 'BASE TABLE' or TABLE_TYPE = 'VIEW') and isnull(@TableName,TABLE_NAME) = TABLE_NAME | |
order by TABLE_TYPE, TABLE_NAME | |
OPEN the_cursor | |
FETCH NEXT FROM the_cursor INTO @TableName | |
WHILE @@FETCH_STATUS = 0 | |
BEGIN | |
set @Result = @Result + ' | |
///<summary> | |
///Class for '+@TableName+' | |
///</summary> | |
public partial class ' + replace(replace(replace(@TableName,' ','_'),'.','_'),'~','_') + ' | |
{ | |
///<summary> | |
///Table Name | |
///</summary> | |
public const string SQLTableName = "['+@TableName+']"; | |
///<summary> | |
///DataBase Name | |
///</summary> | |
public const string SQLDataBaseName = "['+DB_NAME()+']"; | |
///<summary> | |
///Return a SELECT Query for '+@TableName+' | |
///</summary> | |
public static string GetQuery() { return "SELECT * FROM " + SQLDataBaseName + "." + SQLTableName; } | |
///<summary> | |
///Return a SELECT Query for '+@TableName+' | |
///</summary> | |
public override string ToString() { return GetQuery(); } | |
' | |
select @Result = @Result + ' | |
///<summary> | |
///Name: [' + ColumnName + '] | Type: '+ColumnType+' | Scale: '+cast(scale as varchar)+' | Precision: '+cast(precision as varchar)+' | Max Length: '+cast(max_length as varchar)+' | Allow Null: '+iif(is_nullable=1,'Yes','No')+' | |
///</summary> | |
public ' + case @PlainTextClass when 1 then 'string' else ColumnType end + NullableSign + ' ' + ColumnName + case @GenerateProperties when 1 then ' { get; set; }' else ';' end + ' | |
' | |
from | |
( | |
select | |
replace(replace(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 'double' | |
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 'float' | |
when 'smalldatetime' then 'DateTime' | |
when 'smallint' then 'short' | |
when 'smallmoney' then 'decimal' | |
when 'text' then 'string' | |
when 'time' then 'TimeSpan' | |
when 'timestamp' then 'long' | |
when 'tinyint' then 'byte' | |
when 'uniqueidentifier' then 'Guid' | |
when 'varbinary' then 'byte[]' | |
when 'varchar' then 'string' | |
else 'object' | |
end ColumnType, | |
case | |
when col.is_nullable = 1 | |
then '?' | |
else '' | |
end NullableSign, | |
col.scale, | |
col.precision, | |
col.is_nullable, | |
col.max_length | |
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 + ' }' | |
FETCH NEXT FROM the_cursor INTO @TableName | |
END | |
CLOSE the_cursor | |
DEALLOCATE the_cursor | |
set @Result = @Result + ' | |
}' | |
print @result | |
select @Result | |
END |
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