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May 10, 2018 configuration / database / parallelism / sql server

Understanding parallelism on SQL Server

Parallelism refers to multiple processors cooperating to execute a single query at the same time. Parallel execution involves the overhead

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May 9, 2018 database / sql server / storage / tempdb

TempDB summary

  Tempdb is a special database available as a resource to all users of a SQL Server instance, you use

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April 11, 2018 locks / sql server / storage

Difference between Lock and Latch

Locks everywhere is a good start to understand how SQL Server provides logical consistency. Every operation has a lock and

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April 9, 2018 AWS / powershell

Sending files to AWS S3 using Powershell

Amazon has a Powershell module to manage the the principal services available. I’ve been working with EC2, RDS and S3

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April 5, 2018 cpu / index / sql server

SQL Server threads architecture

SQL Server retrieves threads from Windows. The SQL Server configuration setting max worker threads (set at instance level) determines how

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April 4, 2018 b-tree / database / sql server / storage

How SQL Server stores data?

SQL Server stores data in heaps or b-tree structures. Heaps are unordered set and balanced trees are ordered by their

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April 3, 2018 sql server / statistics / wait

Wait Statistics

The first post about waits on SQL Server was regarding what SQL Server Wait means, a brief explanation and the

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March 24, 2018 database / locks / sql server / transaction log

Locks everywhere

In this post I’m going to talk about locks on SQL Server. Locks are necessary, they are used in all

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March 20, 2018 database / sql server / transaction log

Simple way to understand transaction isolation levels

I was talking with a friend about how a database works and she asked me to explain transaction isolation levels

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March 18, 2018 database / sql server / storage / transaction log

Memory-optimized Logging

In a previous post I talked about transaction log works, and what about using a memory-optimized table? SQL Server has

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