As your data volumes grow, your operations slow down.
Data-ingestion - extraction of all underlying data, transformation, and loading in a storage destination (such as a PostgreSQL or MySQL database) - becomes sluggish, impacting processes down the line. Affecting your data analytics and time to insights.
Change Data Capture (CDC) makes data available faster, more efficiently, and without sacrificing data accuracy.
Change Data Capture (CDC) is a process of identifying the changes in a database, data warehouse, or data lake and replicating those changes to another destination storage.
You could replicate the entire source database. In this design pattern called “bulk load updating”, you take a database dump and move all data to a new location - the replica database.
However, this method is not as efficient, since you replicate data that has already been replicated in the past. Bulk replication also doesn’t scale - as your data volumes increase your network latency and processing bottlenecks slow down database replication.
Detecting which table rows have been changed (added, deleted, altered), and replicating those changes makes the entire replication process orders of magnitude more efficient.
In modern data environments, where the volume of data keeps growing, CDC is the only viable data replication technique that scales with your data operations.
CDC has multiple advantages:
Dive deeper into how CDC achieves the multiple benefits for data operations with our in-depth guide.
One question remains unanswered, though. Why would you need a CDC tool to achieve CDC replication? Couldn’t you build it yourself?
Of course, you could build a CDC solution in-house. But there are several shortcomings to the homegrown approach:
Instead of diluting your limited engineering resources further, rely on a tool to do the heavy lifting for you.
Keboola is an end-to-end data operation platform offering out-of-the-box features for a variety of data ops:
Discover all Keboola has to offer with its always free tier. Yes, that is correct, Keboola does not offer just a free trial, it offers an always-free account for all your data needs.
Oracle GoldenGate uses CDC replication across multitudes of sources enabling real-time analysis.
Primarily it is designed to replicate Oracle Database with optimized high-speed data movement. But it can also be used to replicate a range of sources, such as Microsoft SQL Server, IBM DB2, Teradata, MongoDB, MySQL, PostgreSQL, HDFS, Kafka, Spark, and cloud object stores across cloud providers.
Alongside data replication, Oracle GoldenGate is also used for end-to-end monitoring of stream data processing solutions without the need to allocate or manage compute environments.
Qlik Replicate, formerly known as Attunity Replicate, is a data ingestion, replication, and streaming tool.
Qlik Replicate uses parallel threading to process Big Data loads, making it a viable candidate for Big Data analytics and integrations.
Qlik Replicate integrates data across the major data solutions: from RDBMS (PostgreSQL, MySQL, Oracle, DB2, …), data warehouses, to cloud vendors (AWS, GCP, Azure).
IBM InfoSphere Change Data Capture is a replication solution that uses CDC to replicate data across target databases, messages queues, or ETL solutions such as IBM InfoSphere DataStage.
Though IBM InfoSphere Change Data Capture connects to multiple data sources, it is best tailored to the suite of IBM data products, such as IBM Db2 databases, IBM Cognos, or IBM Informix databases.
HVR is a database integration software replicating data across 40 sources and targets.
It mainly focuses on SAP technologies but can be used for high-volume replication of more classic data products as well, offering data integration across cloud providers (AWS, Azure, GCP) and data warehouses/lakes such as Snowflake.
Hevo Data Platform offers CDC replication out of the box through no-code data pipelines. Its main purpose is to integrate data from a multitude of sources into your data warehouse.
Hevo’s user-friendliness is high, but it comes at the expense of inferior monitoring abilities, and fewer customization features - what you see is what you get.
Talend Data Integration is the enterprise-class open source CDC replication software. Talend offers connections and replications across a myriad of data source types within its easy-to-use interface.
Though Talend Data Integration is extremely powerful as a CDC tool, it lacks version control as one of the features and it is definitely geared more towards huge enterprises.
The ultimate tool decision will depend heavily on your specific use case.
Ask yourself these questions when choosing the best CDC tool for your company:
Go through the list of top CDC tools and mark them against these criteria.
Then compare it to Keboola: