Featured Database Articles
Transitioning to the Platform-as-a-Service model typically implies relinquishing certain degree of control over your computing environment. One of the primary concerns related to this transition is diminished level of transparency providing insights into performance of cloud-resident workloads. Fortunately, with Azure SQL Database, you have a wide range of options that address this concern, allowing you to identify and remediate overwhelming majority of performance-related issues.
Explore the Azure Data Studio dashboards and see how to customize one of these dashboards to include a new widget.
On September 24th Microsoft released the first Community Technical Preview for SQL Server 2019, which was CTP2.0. At the same time Microsoft pushed out a new preview for SQL Server Management Studio (SSMS) known as version 18. Now is the time to download this new preview!
Standby databases are used in most, if not all, Data Recovery configurations, and init.ora files and control file creation scripts are usually generated on the primary. Read on to see why, when using Oracle Managed Files, they need to be created on the standby.
Oracle provides two ways to create an index that can reliably be used with nulls; a bitmap index and a function-based index. In this article, you will learn when each is applicable and see them in action!
Occasionally a join using primary key columns in a query can be eliminated because of the data involved. In Oracle 12.2 and later, multi-column primary keys can be used to do this; however, there are cases where the join elimination is not complete . In this article, you'll see an example that illustrates these points.
The IT enterprise has grown, databases are bigger, companies have more product lines, more services, more customers and more transactions. Business analysts used to be satisfied with subsets of only certain data elements for their queries, and now they want it all. Now they want more....
As big data solutions grow in size and complexity, concerns can rise about future performance. One way to assess the potential effects is to measure your big data application’s health.
Until recently, business analytics against big data and the enterprise data warehouse had to come from sophisticated software packages. This was because many statistical functions such as medians and quartiles were not available in basic SQL, forcing the packages to retrieve large result sets and perform aggregations and statistics locally. Today, many database management systems have incorporated these functions into SQL, including IBM's flagship product, Db2.