GGSCI Commands : History and Command (!) recall

Ever get tired of typing commands?  Ever wish there was a way to recall commands from GGSCI?  Well, you are in luck!  There are two ways this can be done (listed below).

1. History
2. ! (command)

The first option, History, is a command that allows you to view a list of the most recent commands executed in the GGSCI interface since the session started.  


GGSCI> history


GGSCI Command History


Setup Streams Performance Advisor (UTL_SPADV) for #GoldenGate

With Oracle “merging” Oracle GoldenGate into Oracle Streams (or vise-versa), capturing statitics on the intergrated extract (capture) or integrated replicat (happy) will be needed.  In order to do this, the Streams Performance Advisor (UTL_SPADV) can be used.  Before using the Stream Performance Advisor, it needs to be configured under the Streams Administrator, i.e. Oracle GoldenGate user.  In my test lab, I use a user named GGATE for all my Oracle GoldenGate work.

Configure user (more...)

Oracle GoldenGate Processes – Part 4 – Replicat

The replicat process is the apply process within the Oracle GoldenGate environment.  The replicat is responsible for reading the remote trail files and applying the data found in cronilogical order.  This ensures that the data is applied in the same order it was captured.  

Until recently there was only one version of a replicat, that version was the classic version.  As of, there are now three distinct versions of a (more...)

Oracle GoldenGate Processes – Part 3 – Data Pump

The Data Pump group is an secondary extract group that is used to help send data over a network.  Although a data pump is another extract group, don’t confuse it with the primary extrat group. The main purpose of the data pump extract is to write the captured data over the network to the remote trail files on the target system.  

Note: if the data pump is not confgured then the primary extract group (more...)

Oracle GoldenGate Processes – Part 2 – Extract

The extract process of Oracle GoldenGate is used to perform change data capture from the source database.  The extract can be used to read the online transaction log (in Oracle the online redo logs) or the associated archive logs.  The data that is extracted from the source database is then placed into an trail file (another topic for a post) for shipping to the apply sided. 

To configure an extract process there needs to (more...)

Oracle GoldenGate Processes – Part 1 – Manager

Oracle GoldenGate is made up of processes that are used to ensure replication.  These processes include a manager process, an extract and a replicat process. The primise of this post is to focus on the manager process.

In order to configure and run an Oracle GoldenGate enviornment, a manager process must be running on all the source, target, and intermediary servers in the configuration.  This is due to the manager process being the controller process (more...)

Access Oracle GoldenGate JAgent XML from browser

There are many different ways of monitoirng Oracle GoldenGate; I have posted about many of these in earlier blog posts.  Additionally, I have talked about the different ways of monitoring Oracle GoldenGate at a few conferences as well.  (The slides can be found on my slideshare site if wanted).  In both my blog and presentations I highlight many different approaches; yet I forgot one that I think is really cool!  This one was shown to (more...)

Upgrade Oracle GoldenGate to

Recently, I’ve been engaged in a conversation on the OTN community pages about upgrading Oracle GoldenGate 12c from to the  During the discussion I mentioned that you can upgrade using the Oracle Universal Installer (OUI) that is now available with Oracle GoldenGate 12c.  The upgrade process I’m going to show you here is an in-place upgrade of Oracle GoldenGate 12c for Oracle Database 12c.

Note: (more...)

Repair Replicat after mount point name change

Working on Oracle GoldenGate can be an interesting adventure. In such a case, I have been doing some migration work for a client. Half way though the migration, the target system ran out of resources need to create the tablespaces and store files export and trail files (i.e. disk space and a story for another time). The impact to the migration was that everything had to stop until resources were allocated.

Part of the (more...)

ECO 2014 and Slides

Last week I attended the East Coast Oracle User Group conference, also known as ECO, in Raleigh, NC.  This being my first time at ECO, it was a good event for being a two day conference.  The low-key environment provided a nice, comfortable environment for interaction between the speakers and those in attendance.  If you ever have the chance to catch this conference, it would be a good one to attend.

What you can expect (more...)

Upgrade Oracle Enterprise Manager 12c ( to

| Sep 15, 2013

In order to upgrade out OEM environment from to we need to download the latest version of OEM from either or from Once we have the files needed to upgrade, we need to stage them in (more…)