To get information about transaction log, usually we use :
DBCC SQLPerf(LogSpace) = how much log space it’s used
DBCC LogInfo = information about vlf virtual log files
But there are new dmvs ,that can do the same things maybe more:
for DBCC SQLPerf , we can use sys.dm_db_log_space_usage
for DBCC LogInfo , we can use sys.dm_db_log_info
also can be used sys.dm_db_log_stats
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