How to get stored procedure parameters details?

Question

Where can I find information about stored procedure parameters? In my situation I need to know only the input parameters of given store procedure.

In the sys.o

Answer 1

select  
   'Parameter_name' = name,  
   'Type'   = type_name(user_type_id),  
   'Length'   = max_length,  
   'Prec'   = case when type_name(system_type_id) = 'uniqueidentifier' 
              then precision  
              else OdbcPrec(system_type_id, max_length, precision) end,  
   'Scale'   = OdbcScale(system_type_id, scale),  
   'Param_order'  = parameter_id,  
   'Collation'   = convert(sysname, 
                   case when system_type_id in (35, 99, 167, 175, 231, 239)  
                   then ServerProperty('collation') end)  

  from sys.parameters where object_id = object_id('MySchema.MyProcedure')

Answer 2

There are the system tables, like sys.objects or sys.sysobjects.

Or you could also look at INFORMATION_SCHEMA, specifically INFORMATION_SCHEMA.ROUTINES and INFORMATION_SCHEMA.ROUTINE_COLUMNS.

Because it is in the ANSI-standard INFORMATION_SCHEMA, there are less SQL Server specific quirks. IMHO it is easier to understand for most things.

Answer 3

It Contains a row for each parameter of an object that accepts parameters. If the object is a scalar function, there is also a single row describing the return value. That row will have a parameter_id value of 0.

SELECT *  
FROM sys.parameters  
WHERE object_id = object_id('SchemaName.ProcedureName')

Reference: https://docs.microsoft.com/en-us/sql/relational-databases/system-catalog-views/sys-parameters-transact-sql?view=sql-server-2017

Answer 4

SELECT *  
FROM INFORMATION_SCHEMA.PARAMETERS 
WHERE SPECIFIC_NAME='proc_name' 
ORDER BY ORDINAL_POSITION 

(tested with MSSQL 2014)

Answer 5

select t1.[name] as [SP_name],t2.[name] as [Parameter_name],
t3.[name] as [Type],t2.[Length],t2.colorder as [Param_order]
from sysobjects t1
inner join syscolumns t2 on t1.[id]=t2.[id]
inner join systypes t3 on t2.xtype=t3.xtype
where t1.[name]='My_StoredProc_Name'
order by [Param_order]

Answer 6

The following Query worked for me:

SELECT * FROM sys.parameters sp1, sys.procedures sp2 WHERE sp1.object_id = sp2.object_id

For more specific result with parameter order:

SELECT * FROM sys.parameters sp1, sys.procedures sp2, sys.types st WHERE sp1.object_id = sp2.object_id AND sp2.name = 'usp_nameofstoredprocedure' AND sp1.user_type_id = st.user_type_id ORDER BY sp1.parameter_id asc;