(@_msparam_0 nvarchar(4000))SELECT
SCHEMA_NAME(udf.schema_id) AS [Schema],
udf.name AS [Name],
udf.object_id AS [ID],
(case when 'FN' = udf.type then 1 when 'FS' = udf.type then 1 when 'IF' = udf.type then 3 when 'TF' = udf.type then 2 when 'FT' = udf.type then 2 else 0 end) AS [FunctionType],
CASE WHEN udf.type IN ('FN','IF','TF') THEN 1 WHEN udf.type IN ('FS','FT') THEN 2 ELSE 1 END AS [ImplementationType],
CAST(
 case
    when udf.is_ms_shipped = 1 then 1
    when (
        select
            major_id
        from
            sys.extended_properties
        where
            major_id = udf.object_id and
            minor_id = 0 and
            class = 1 and
            name = N'microsoft_database_tools_support')
        is not null then 1
    else 0
end         
             AS bit) AS [IsSystemObject],
CAST(CASE WHEN ISNULL(smudf.definition, ssmudf.definition) IS NULL THEN 1 ELSE 0 END AS bit) AS [IsEncrypted],
CAST(ISNULL(OBJECTPROPERTYEX(udf.object_id, N'IsSchemaBound'),0) AS bit) AS [IsSchemaBound],
usrt.name AS [DataType],
ISNULL(baset.name, N'') AS [SystemType],
CAST(CASE WHEN baset.name IN (N'nchar', N'nvarchar') AND ret_param.max_length <> -1 THEN ret_param.max_length/2 ELSE ret_param.max_length END AS int) AS [Length],
CAST(ret_param.precision AS int) AS [NumericPrecision],
CAST(ret_param.scale AS int) AS [NumericScale],
ISNULL(xscret_param.name, N'') AS [XmlSchemaNamespace],
ISNULL(s2ret_param.name, N'') AS [XmlSchemaNamespaceSchema],
ISNULL( (case ret_param.is_xml_document when 1 then 2 else 1 end), 0) AS [XmlDocumentConstraint],
s1ret_param.name AS [DataTypeSchema]
FROM
sys.all_objects AS udf
LEFT OUTER JOIN sys.sql_modules AS smudf ON smudf.object_id = udf.object_id
LEFT OUTER JOIN sys.system_sql_modules AS ssmudf ON ssmudf.object_id = udf.object_id
LEFT OUTER JOIN sys.all_parameters AS ret_param ON ret_param.object_id = udf.object_id and ret_param.is_output = @_msparam_0
LEFT OUTER JOIN sys.types AS usrt ON usrt.user_type_id = ret_param.user_type_id
LEFT OUTER JOIN sys.types AS baset ON (baset.user_type_id = ret_param.system_type_id and baset.user_type_id = baset.system_type_id) or ((baset.system_type_id = ret_param.system_type_id) and (baset.user_type_id = ret_param.user_type_id) and (baset.is_user_defined = 0) and (baset.is_assembly_type = 1))
LEFT OUTER JOIN sys.xml_schema_collections AS xscret_param ON xscret_param.xml_collection_id = ret_param.xml_collection_id
LEFT OUTER JOIN sys.schemas AS s2ret_param ON s2ret_param.schema_id = xscret_param.schema_id
LEFT OUTER JOIN sys.schemas AS s1ret_param ON s1ret_param.schema_id = usrt.schema_id
WHERE
(udf.type in ('TF', 'FN', 'IF', 'FS', 'FT'))
ORDER BY
[Schema] ASC,[Name] ASC

io높은 놈을 찾다보니깐 이런게 나왔는데 이거 정체가 뭔지 전혀 모르겠습니다. 제가 사용하는건 아닌데 시스템에서 사용하는건지

저녀석 정체가 뭔지 알려주실수 있을까요?

SELECT A.ID,A.class,isnull(d.uid,'') as uid  FROM tablea A with(nolock)   left JOIN (select nid,sajin,cr from tableb with(nolock) )  B  on a.nid=B.nid left join (select nid,uid from tablec with(nolock) where cnid='' and read_chk='1') d on d.uid=a.nid   where   A.edate > '20151220'   and (class = '01' or class='05') and (schk='1' )and (((cr='10') and ag<'1979') or B.cr='20')  and ( ar='ur' or ar='kn')  and ar<>'' order by A.edate desc offset 90 rows  fetch next 30 rows only

그리고 이런쿼리를 튜닝하려면 어떻게 해야 할수 있을지 궁금합니다.