Active Dataguard vs Goldengate.

Few days back i have provided Recommendation on what should use for DR. 

Active Data Guard or Oracle Goldengate. 

Primary Functional Comparison .

Oprations	Active Data Guard	GoldenGate V11.2
Suitable	Disaster recovery /  Read-only Reporting.	Fine-grain Replication / Object Transformation
Security	User  grant/privileges are same on Target & Source	User access can restricted as per requirement.
Data type support	All data-type supported by Primary	*  (Attached separately)
Replication	·      Physical block-to-block copy of whole DB on Target.  (Carried out by Redo logs).  ·      Target will be read only  (Can be Open temporary for read/write) ·      Support Parallel DML on RAC span on Multiple instances. ·      No object-Transformation allowed ·      Support compression.	·      Only Required Table are subject for Replication  (More controlled). (carried out by Trailfiles)  ·      Target will be in read/write all Time. ·      Does Not support Parallel DML on RAC  spawn from Multiple instances ·      Object-Transformation Allowed. ·      Not-support Compression.
Maintenance.	Automatic Outage Gap resolution. Low-Maintenance	Manual Invention needed for Troubleshoot. Moderate - Maintenance.
Clustered DB	Only One instance will Perform recovery  on Target.	All instance will perform recovery on Target side.  (Load balance)

Other things to look for . 

·         Do you need Copy of source database or  Set of tables required to be Replicate

·         SLA for lag/latency.

·         Amount of Archive log Generated / day by database  ( Per Instance for RAC )

·         Is source & target are in different Time-zone.

·         No of tables with LOB/CLOB data to be replicate.

·         Network bandwidth.