This website use cookies to help you have a superior and more admissible browsing experience on the website.
Share This Article：
What is the best real-time SQL Server Replication method?
I need to replicate data from a DB2 database into a SQL Server Database (along the lines of about 80 tables). I can create an SSIS package, to just flat copy the data from one to another pretty easy, but the amount of records is a couple million, so doing it once takes a while, but for the initial setup its fine. However, I need to do “almost” real time updates, so this method won’t be viable. What would be the best method, and how, to do just add change and delete replication from DB2 to SQL Server?
– Question from Stack Overflow
For decades, IBM DB2 has been a reliable workhorse for mission-critical operations. However, as organizations embrace digital transformation, cloud infrastructure, and advanced analytics, there’s a growing need to move this valuable data to more flexible and cost-effective platforms like Microsoft SQL Server.
If you want to replicate DB2 to SQL Server, you can refer to this article. We will provide a comprehensive guide and explore the exact tools and DB2 to SQL Server replication step-by-step methods.
What is DB2 to SQL Server Replication?
DB2 to SQL Server Replication is the process of copying data from a DB2 database to a Microsoft SQL Server database. This usually involves setting up a mechanism to initially transfer the data and then continually synchronize changes (like inserts, updates, and deletes) between the source DB2 database and the target SQL Server database.
Since DB2 and SQL Server are different database platforms, this process is known as heterogeneous replication and typically relies on specialized third-party tools or vendor-provided connectors, often leveraging Change Data Capture (CDC) technology. CDC reads the transaction logs of the DB2 source to identify, and extract committed changes with minimal impact on the production system.
Why people Need DB2 to SQL Server Replication?
Organizations replicate data from DB2 to SQL Server for several key business and technical reasons:
- Offload Reporting and Analytics: DB2 databases often handle massive, non-stop, transactional workloads. Running complex queries for reporting, Business Intelligence (BI), and analytics directly against the live operational DB2 system can significantly slow down mission-critical applications.
- Application Refactoring: Companies often want to develop new applications or refactor older ones using modern tools and platforms that integrate easily with SQL Server. Replication allows developers to work with an up-to-date copy of the data without needing to connect directly to the legacy DB2 system.
- Standby System: The SQL Server database can serve as an accessible, near-real-time Disaster Recovery (DR) site. If the primary DB2 system fails, applications can be quickly pointed to the replicated data on the SQL Server, minimizing downtime.
- Data Consolidation and Distribution: Companies may have a fragmented environment where the core transactional data resides in DB2, but other departmental or regional systems run on SQL Server. Replication helps consolidate data for a unified view or distribute data for local processing.
Method 1. Replicate DB2 to MS SQL Server using SSMA (for One-Time Migration)
SSMA is SQL Server Migration Assistant, which is a tool designed to migrate databases to SQL Server. This is useful for projects that require non-continuous, bulk migration. But if you want real-time and continuous replication, you can skip to method 2.
Step 1. Go to Microsoft SSMA for DB2 downloading page to download and install the tool.
Step 2. Go to IBM Fix Central and search for IBM Data Server Drive for OBDC and CLI. And download IBM Data Server Client Packages. This is a required driver to connect to DB2.
Step 3. Open SSMA for DB2. Go to “File” > “New Project”. Name your project and choose the target platform as SQL Server.
Step 4. Click “Connect to DB2”. Provide Server/Hostname, Port (usually 50000 for DB2), Database name, User ID & Password.
Step 5. And click “Connect to SQL Server”. Enter Server name, Authentication mode (SQL or Windows), Target database (or create a new one).
Step 6. In SSMA, Click “Tools” > “Assess Database”. Then SSMA generates an Assessment Report:
- Shows objects that can be migrated automatically.
- Lists issues like data types, stored procedures, or functions that need manual intervention.
Step 7. Review this report carefully to plan for any manual changes.
Step 8. Select “Convert Schema” in SSMA to convert tables, views, indexes, and relationships (primary/foreign keys). Review SQL Server compatible types and fix any conversion warnings.
Step 9. Click “Synchronize with Database” to apply the converted schema to SQL Server. It will create tables, keys, indexes, and views in the target SQL Server database.
Step 10. Then select the table you want to migrate and click “Migrate Data”.
Method 2. Continuous, Low-Latency DB2 to SQL Server Replication
SSMA is an effective way to migrate database to SQL Server at a time. However, if your business requires low-latency, transactional integrity, and continuous synchronization, you can turn to Information2’s i2Stream. This is a robust and professional database replication solution for SQL Server.
As an enterprise-grade replication platform, i2Stream synchronizes data from a source database to one or more target database in real time or at regular intervals for consistency on different databases. This is the ideal for database high availability, load balancing, disaster recovery, and so on.
Key features of i2Stream:
- Agentless replication: You don’t need to deploy software in the production system. So, it won’t affect the performance of the production database.
- Real-time replication: Copy data to SQL Server database instantaneously as the data is generated and updated with millisecond-level latency.
- Ensure Data integrity: Automatically identifies and handles character set differences and support transaction-level consistency.
- Comprehensive visualization: With a web-based management interface, administrators can have comprehensive monitoring of synchronization host resources.
FREE Trial for 60-Day
Secure Download
Conclusion
This article includes 2 methods of how to replicate DB2 to SQL Server database. This choice of method depends on your business requirements. SSMA (SQL Server Migration Assistant) is a effective tool to migrate schema and bulk data at a time easily.
If you want to continuous synchronization and ensure high data protection, you can turn to i2Stream. It provides a gentles way to replicate DB2 database to Microsoft SQL Server database.
{{ author_info.name }}
{{author_info.introduction || "No brief introduction for now"}}
More Related Articles
Table of Contents:
Stay Updated on Latest Tips
Subscribe to our newsletter for the latest insights, news, exclusive content. You can unsubscribe at any time.
Ready to Enhance Business Data Security?
Start a 60-day free trial or view demo to see how Info2Soft protects enterprise data.
Please fill out the form and submit it, our customer service representative will contact you soon.
By submitting this form, I confirm that I have read and agree to the Privacy Notice.
