SQL Server stored procedures and commands
     The items in this section can be used to return information related
      to performance. 
  
    Note: This topic applies only to on-premises
      environments. 
    - sp_whoand- sp_who2: The stored procedure- sp_whoshows what SPID is blocked.- sp_who2shows who is blocking.
- sp_helpindex (table_name): Gives index information for a table.
- DBCC OPENTRAN: Determines whether an open transaction exists within the log.
- DBCC INPUTBUFFER (SPID): Displays the last statement sent from a client to SQL Server.
- DBCC Trace On: Enables specified trace flags.