when indexes are useless | The Backend Engine...

Page tables provide the mapping between virtual memory and physical memory for each process. This means it needs to be as efficient and as fast as possible. I explore the inner workings of page tables in this episode.0:00 Intro2:00 Virtual Memory ⁃ ⁃ 8:00 MMU10:00 Page Tables ⁃ ⁃ ...  عرض المزيد

Page faults occurs when the process tries to access a memory that isn’t backed by a physical page kernel raises a fault which loads a page. It happens on first access, stack expansion, COW, swap and much more. However it comes with a cost. 

In this episode o ...

Erik Darling joins Kendra Little to rate different SQL Server Performance Tuning Techniques in episode 81 of the Dear SQL DBA podcast. We share our opinions of... (deep breath)   Recompile hints, Query Store hints and plan forcing, CTEs, Resource Governor, the legacy cardinality ...  عرض المزيد

Halfway through this series and we're only just getting to 'buying your first stock'.What have we been talking about... The theme of this episode is all about 'just getting started'. In the spirit of this we are introducing the concept of an index. An index is the perfect opportu ...  عرض المزيد

For investors, tracking an index has allowed them to target exposure within specific sectors and industries. And the advent of ETF or exchange traded fund investing has made this readily accessible to investors. But, imagine if you could invest in the what you think are the be ...

In this episode, we talk about database architectures and some of their use cases, with Kyle Bernhardy, CTO of HarperDB. Kyle talks about what a database is, different types of databases, and when you might want to use one type of database over another. Show Links DevDiscuss (spo ...  عرض المزيد