In my previous post, I told you about what it meant for an index in SQL Server to be ‘clustered’. Usually, when we talk about SQL Server indexes, we are talking about indexes organized as B-trees (or technically, B+-trees, but we won’t go into the difference here.) For these indexes there are two basic properties that set clustered indexes apart from nonclustered. First, the index leaf level IS the data. It is not a copy of the data or pointers […]
Talks on Managing Data and Applications Anywhere
A leading provider of business management solutions currently hosts many of their workloads using SQL Server databases on Azure. They faced a number of SQL Server database performance issues and needed an efficient solution to resolve them. We analyzed the customer’s system and delivered instructions with detailed descriptions. They covered all discovered issues and described the possible approaches to fix them. With our instructions, our customer achieved more than three times better overall query performance.
When you tell SQL Server to create a regular clustered index on a table, it will completely rebuild your table. SQL Server will take your data rows and rearrange them on new pages. Your table’s pages become the leaf level of the clustered index, so sometimes we call the table a clustered table. People usually think of clustered as meaning ‘sorted’, and for the most part I’ll go along with this. But sorting can be logical or physical, and there […]
One of our regular customers wanted to add video streaming functions to their existing web and mobile applications. As the developers of their original applications, we proposed to re-architect the application and move it to the Amazon cloud. The customer agreed, and we delivered a cost-effective solution for in-house video streaming, based on Amazon Web Services. Watch the following video to learn more about our technical approach to the upgrade and development of this application.
Amazon introduced the data extraction agents in the previous release of AWS Schema Conversion Tool (SCT). They allowed for migrating all the data from your on-premises data warehouse platforms to Amazon Redshift. Wait, what if you don’t need to move all those terabytes of data, and just want to settle for the data generated in the past couple of years? Starting from the version 1.0.603, SCT allows filtering the data before uploading it to Redshift. In addition, the latest SCT […]
Our customer has been supporting Oracle based online transaction processing (OLTP) system. They decided to take advantage of the modern data analysis capabilities of SQL Server’s data warehouse features including columnstore for greater value over an Oracle based data warehouse solution. We came up with a comprehensive solution on extracting and transforming their source data and loading it into the target database. As a result, our customer benefited from obtaining a highly standardized and easily manageable solution within a short […]
What makes a feature useless? I might agree that if absolutely NO ONE uses it, or has ever used it, then it is useless, by obvious definition. But if some people use it, but not everyone, is that useless? What if only 1% of product users employ a feature in production? Is that useless? What if those 1% base their entire production system around the feature? Is that more or less useless than another feature used by 80% of the […]
A major American provider of global eCommerce solutions was looking for a way to upgrade their extensive data processing system. We provided them with visibility into their system and built cost-effective and highly optimized modernization roadmap using our DBMSys platform. Using our detailed instructions they can substantially cut the upgrade expenses and take advantage of their workloads migration to Azure along with benefits from virtualization and consolidation options.
One of the major United States universities has been migrating their complex data managing system from Sybase to SQL Server. They used SQL Server Migration Assistant for Sybase to automate the migration process. However, SSMA tool could not deal with 100% of their source code, and their development team required some assistance with a manual conversion. So they asked us to provide technical support in resolving these conversion errors. With our guidance and extensive support, our customer was able to complete the migration within the short […]
One of the world’s largest information technology companies decided to migrate their Oracle database to SQL Server. They leveraged SQL Server Migration Assistant (SSMA) for Oracle to automate the major part of their migration effort. However, their source database code included over 400 hierarchical queries that SSMA could not convert. Neither could the customer’s technical staff. So, they turned to DB Best asking for assistance in converting a number of Oracle database schemas. We helped our customer to solve this […]