Alex Grinberg SQL Server Temporal Tables: How-To Recipes Tables that return the value of the data in the table at a particular point of time have been with... 10 February 2017 15 min read
Database Administration Robert Sheldon in Database Administration SQL Server Encryption: Always Encrypted Is 'Always Encrypted' SQL Server 2016's most widely important new feature? It is significant that 'Always Encrypted' in SQL Server... 10 February 2017 26 min read
Houri Oracle Partitioned Index Efficiency PartitionedIndexEfficiency Although it is generally true that rebuilding an index represents a waste of time and resources, there nevertheless exist... 09 February 2017 10 min read
Anju Garg Policy-Managed Oracle RAC One Node Databases Oracle RAC One Node, introduced in Oracle Database 11g Release 2 (11.2.0.2), is a single instance of an Oracle RAC-enabled... 09 February 2017 13 min read
.NET Sophia Segal in .NET User Acceptance Testing and the Application Lifecycle User Acceptance Testing (UAT) is an important part of the development process. If carried out as early as possible and... 03 February 2017 24 min read
Aman Sharma Understanding SQL Query Parsing: Part 4 – Understanding Bind Variable Peeking In the 3rd part of this series, I introduced you to the concept of the bind variables. We also learned... 03 February 2017 8 min read
David Njoku Oracle for Absolute Beginners: Date, Timestamp and Interval All databases stand on a tripod of datatypes: strings, numbers and dates. And though they might dress them in fancy... 02 February 2017 12 min read
David Njoku Oracle for Absolute Beginners: Other SQL Functions Here’s a simple trick you can play on your friends. Ask them to pick a number from 1 to 10,... 30 January 2017 8 min read
Database Administration Alex Grinberg in Database Administration Migrating a Disk-Based Table to a Memory-Optimized Table in SQL Server The feature formerly known as Hekaton, now In-Memory OLTP can provide very useful performance gains where you carefully select the... 26 January 2017 20 min read
Blogs Phil Factor in Blogs Kadane’s solution to the Maximum Subarray problem Sometimes, you can be asked an awkward question about data that doesn't quite fit with the SQL way of thinking.... 25 January 2017 8 min read
Anju Garg Duplicate Point-In-Time Recovered PDB Using Backup At times, we might need to duplicate a production pluggable database to a Past Point in Time without disturbing the production... 25 January 2017 9 min read
Jonathan Lewis Snapshots While looking at the results from a query against the dynamic performance view v$active_session_history during a recent trouble-shooting assignment I... 24 January 2017 11 min read
Jonathan Lewis Index Costing Threat In the previous post I described a problem with the strategy that the optimizer uses for costing an index fast... 24 January 2017 9 min read
T-SQL Programming Joe Celko in T-SQL Programming Handling Graphs in SQL Many practical database problems can be tackled more simply and intuitively by graphs or networks, which in this sense are... 20 January 2017 17 min read
Oracle Aman Sharma in Oracle Understanding SQL Query Parsing – Part 3: Bind Variables and Cursor Sharing In the first and the second parts of this series, we learned what query parsing is, how hard and soft... 20 January 2017 10 min read
Jonathan Lewis Problems with Indexes In my book “Cost Based Oracle – Fundamentals” (Apress 2005) I described a problem with the cost calculation for the... 20 January 2017 7 min read
T-SQL Programming Robert Sheldon in T-SQL Programming Core Database Source Control Concepts Sometimes, it isn't the technicalities or details of database source control that people find difficult, but the general concepts and... 13 January 2017 30 min read
T-SQL Programming Robert Sheldon in T-SQL Programming Encrypting SQL Server: Transparent Data Encryption (TDE) Transparent Data Encryption (TDE) encrypts the data within the physical files of the database, the 'data at rest'. Without the... 12 January 2017 16 min read
BI Nat Sundar in BI Deployment Automation for SQL Server Integration Services (SSIS) SSIS was not originally designed with automated deployment in mind. However, any database that uses SSIS projects and their packages... 12 January 2017 16 min read
Houri Oracle Data Type Implicit Conversion Hierarchy In Oracle, under certain circumstances, an implicit data type conversion precludes the use of indexes. Perhaps you have a vague... 09 January 2017 10 min read
