OpenLogReplicator – Delete row piece (OP 11.3) and Truncate table (OP 24.1)

The OpenLogReplicator has been a new release 0.0.8 with new functionality: Added rowid field to JSON (Kafka target) Support for OP code 11.3 – Delete Row Piece Support for OP code 24.1 – DDL: Truncate table (only Kafka target) Here is an example of usage. Let’s create a table: CREATE TABLE SYSTEM.ADAM3( A NUMERIC ); …

OpenLogReplicator – Delete row piece (OP 11.3) and Truncate table (OP 24.1) Read More »

OpenLogReplicator – Insert multiple rows (OP 11.11)

The OpenLogReplicator has been extended to support also OP code 11.11 – Insert Multiple Rows. This type of redo record is used when an INSERT is used with a set of rows to be inserted. For example with INSERT … SELECT … . Here is an example of usage. Let’s create a table: CREATE TABLE …

OpenLogReplicator – Insert multiple rows (OP 11.11) Read More »

OpenLogReplicator – CDC replication from Oracle to Redis

OpenLogReplicator – the first open-source transaction replicator (CDC) to Kafka now supports also Redis as a target. Check the new released version 0.0.3 (compiled for x86_64). It requires additionally the hiredis library To run: Testing with Redis: Redis: All transactions are replicated with consistency (MULTI/EXEC). Enjoy!

OpenLogReplicator – first log-based open source Oracle to Kafka CDC replication

I have figured out that writing about somebody else’s software is boring. Why not create your own. So here it is: All code GPL v.3 Just C++ code – absolutely no Java/Python or any other interpreted language Purely reading Oracle Redo Log from disk – zero additional load to the database instance High performance architecture …

OpenLogReplicator – first log-based open source Oracle to Kafka CDC replication Read More »

Oracle GoldenGate Parallel Integrated Replicat – DML rearrangement in transactions

While preparing my presentation for POUG 2018 conference I have found some different behavior in Parallel Intgrated Replicat. This is a new Replicat type available from version 12.3. According to Oracle internal tests Parallel Replicat can be up to 5 times faster than Integrated Replicat in the same test case. I have done a number …

Oracle GoldenGate Parallel Integrated Replicat – DML rearrangement in transactions Read More »

Oracle GoldenGate data filtering with WHERE and FILTER parameters the right way

One of the most trivial tasks for data replication is to define a replica of the table with just a subset of the rows from the source table. For example we would like just to replicate the ACCOUNTS table with some type (one column has some defined value). If you want to replicate that using …

Oracle GoldenGate data filtering with WHERE and FILTER parameters the right way Read More »

Oracle GoldenGate point in time source database recovery

Even though you would like to secure the database from any disaster with HA, still it might happen that the database gets corrupted and a recovery from backup is needed to recover the database. In a critical scenario you might need to use Point In Time Recovery (PITR). Let’s focus on a scenario when the …

Oracle GoldenGate point in time source database recovery Read More »