Skip to content

read-only

Oracle 12cR2 : Partitioning improvements – multi-column list partitioning & read-only partitions

In my last blog post I presented auto-list partitioning, a new partitioning functionality coming with 12cR2. In this one I will introduce two others : multi-column list partitioning and read-only partitions. Multi-column list partitioning Image : “Oracle Partitioning in Oracle Database 12c Release 2” – Hermann Bär With the first release of 12c it wasn’t possible to create list partitioned… 

Availability groups : readable secondary replicas and impact on the storage layer

Do read-only capabilities of an availability group have a performance impact for databases? The quick response is yes but let’s see why in this blog post. First of all, when we want to use our secondary replicas as read-only, we enable and we use implicitly the SNAPSHOT isolation level regardless either the transaction isolation level or the hint used in… 

SQL Server 2016 : availability groups and load balancing features

Let’s continue with this third post about SQL Server AlwaysOn and availability groups. Others studies are available here: New database issue level detection for automatic failover Potential features in standard edition Automatic failover enhancements This time I’ll talk about read-only secondaries and the new load-balancing support that will be introduced by SQL Server 2016. First of all, SQL Server 2014…