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How to get all connected DBLINK information -SP_LINKEDSERVERS

I am working several remote server those are connected with DB link. I need create a DB link (remote server oracle db) with my SQL Server, but don't know the required server is connected or not.  at this moment used SQL server default procedure
  
 EXEC SP_LINKEDSERVERS

Found below results: all link server name, provider name, DataSource IP those are connected with DBLINK








MSDN

Column name
Data type
Description
SRV_NAME
sysname
Name of the linked server.
SRV_PROVIDERNAME
nvarchar(128)
Friendly name of the OLE DB provider managing access to the specified linked server.
SRV_PRODUCT
nvarchar(128)
Product name of the linked server.
SRV_DATASOURCE
nvarchar(4000)
OLE DB data source property corresponding to the specified linked server.
SRV_PROVIDERSTRING
nvarchar(4000)
OLE DB provider string property corresponding to the linked server.
SRV_LOCATION
nvarchar(4000)
OLE DB location property corresponding to the specified linked server.
SRV_CAT
sysname
OLE DB catalog property corresponding to the specified linked server.
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