sys.partition_parameters (Transact-SQL)
Contains a row for each parameter of a partition function.
Column name  | 
Data type  | 
Description  | 
|---|---|---|
function_id  | 
int  | 
ID of the partition function to which this parameter belongs.  | 
parameter_id  | 
int  | 
ID of the parameter. Is unique within the partition function, beginning with 1.  | 
system_type_id  | 
tinyint  | 
ID of the system type of the parameter. Corresponds to the system_type_id column of the sys.types catalog view.  | 
max_length  | 
smallint  | 
Maximum length of the parameter in bytes.  | 
precision  | 
tinyint  | 
Precision of the parameter if numeric-based; otherwise, 0.  | 
scale  | 
tinyint  | 
Scale of the parameter if numeric-based; otherwise, 0.  | 
collation_name  | 
sysname  | 
Name of the collation of the parameter if character-based; otherwise, NULL.  | 
user_type_id  | 
int  | 
ID of the type. Is unique within the database. For system data types, user_type_id = system_type_id.  | 
Permissions
In SQL Server 2005 and later versions, the visibility of the metadata in catalog views is limited to securables that a user either owns or on which the user has been granted some permission. For more information, see Metadata Visibility Configuration.