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@ruant
Last active June 16, 2020 07:34
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A simple TSQL script to quickly generate c# POCO classes from SQL Server tables and views. (Copied from https://gist.github.com/joey-qc/6710702)
declare @tableName varchar(200)
declare @columnName varchar(200)
declare @nullable varchar(50)
declare @datatype varchar(50)
declare @maxlen int
declare @pos int
declare @Stype varchar(50)
declare @isnullable varchar(1)
declare @Sproperty varchar(200)
DECLARE table_cursor CURSOR FOR
SELECT TABLE_NAME
FROM [INFORMATION_SCHEMA].[TABLES]
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'), ORDINAL_POSITION
, CASE WHEN (IS_NULLABLE = 'NO') THEN ''
ELSE
CASE WHEN (DATA_TYPE IN ('char','nchar','varchar','nvarchar')) THEN '' ELSE '?' END
END
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, @pos, @isNullable
WHILE @@FETCH_STATUS = 0
BEGIN
-- datatype
select @sType = case @datatype
when 'int' then 'int'
when 'smallint' then 'short'
when 'bigint' then 'long'
when 'decimal' then 'Decimal'
when 'money' then 'Decimal'
when 'char' then 'string'
when 'nchar' then 'string'
when 'smallint' then 'short'
when 'varchar' then 'string'
when 'nvarchar' then 'string'
when 'uniqueidentifier' then 'Guid'
when 'datetime' then 'DateTime'
when 'bit' then 'bool'
else 'string'
END
If (@pos = 1)
PRINT ' [Key]'
If (@nullable = 'NO' AND @pos > 1)
PRINT ' [Required]'
if (@sType = 'string' and @maxLen <> '-1')
PRINT ' [MaxLength(' + convert(varchar(4),@maxLen) + ')]'
if (@sType = 'datetime')
PRINT ' [Column(TypeName = "datetime")]'
SELECT @sProperty = ' public ' + @sType + @isNullable + ' ' + @columnName + ' { get; set; }'
PRINT @sProperty
--print ''
FETCH NEXT FROM column_cursor INTO @columnName, @nullable, @datatype, @maxlen, @pos, @isNullable
END
CLOSE column_cursor
DEALLOCATE column_cursor
print '}'
print ''
FETCH NEXT FROM table_cursor
INTO @tableName
END
CLOSE table_cursor
DEALLOCATE table_cursor
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