SQL Server Articles


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Monitoring Table Size Growth in SQL Server

General In this article I introduce a simple process that saves tables size information at points in time which latter allows for tracking down table growth over time. The process is useful in monitoring data growth over time and lets you see what tables are growing rapidly in what databases and can also help in […]

Monitor SQL Server Replication Jobs

The Replication infrastructure in SQL Server is implemented using SQL Server Agent to execute the various components involved in the form of a job (e.g. LogReader agent job, Distribution agent job, Merge agent job) SQL Server jobs execute a binary executable file which is basically C++ code. You can download all the scripts for this […]

SQL Server T-SQL Tuning – Temp Tables, Table Variables and Union

In this article series we will focus on the primary points of T-SQL performance tuning. In this first installment I will lopok at tuning temp tables, table variables and the Union command. Temp Tables and Table Variables Most database developers are used to breaking down code into small chunks using  temp tables or table variables  […]

Entity Framework Gotchas

Entity Framework is fast becoming the default data access method for small to medium sized apps in .NET. Whilst it offers a lot of benefits in terms of productivity and security, working with EF is often very different from working with the standard ADO.NET data-access objects and poses several common issues or ‘gotchas’: Using Different […]

Time Series Algorithms in SQL Server

This is the fourth article on data mining series. The below are the previous articles in this series. Shopping Basket Analysis in SQL Server Using Decision Trees in SQL Server Data Mining Cluster Analysis in SQL Server This article focuses Time Series Algorithms which are a forecasting technique. One of the most common algorithms used […]

Auditing with Microsoft Assessment and Planning (MAP) Toolkit 5.0 – Part 1

Auditing and inventorying is not something new in any IT environment. Depending on the purpose, it can take many forms. Sometimes the auditing is about security and data access. Sometimes it is about software usage and licensing. Often it is about consolidation and cost saving. Whatever the reason, the strategic direction typically comes from top […]

Using The System Monitor Tool For Measuring SQL Server Performance

System Monitor, a program to measure the performance of SQL Server allows you to view the objects of SQL Server and performance counters in addition to the behavior of other objects, including threads, processors, memory, and cache. These objects individually associate set of computers for measuring delays, device usage, and other counters indicating overall performance […]

Multiple Table Queries in SQL Server – UNION, EXCEPT, INTERSECT, Subqueries, and Joins

There are several for creating queries that return data from multiple tables. The one you choose depends on your data retrieval requirements and the underlying structure of the database. In this three part article series, I will demonstrate how to combine data from multiple tables by using UNION, INTERSECT, and EXCEPT. You’ll perform advanced queries […]

Techniques to Monitor SQL Server memory usage

Memory has a dramatic impact on SQL Server Performance. Fortunately, in SQL Server you can either use DMVs, , Extended Events, sp_server_diagnostics system procedure or SQL Profiler to server memory usage and track down root cause of SQL Server memory bottlenecks. In this article, I will provide you high-level overview of these memory-related tools. Dynamic […]

Physical Join Operators in SQL Server – Hash Operator

In second part of this series on physical join operators we looked at the Merge Operator. In the final part of the series we turn our attention to the Hash operator. For this article series I am using an analogy of two sets of standard playing cards. One set with a blue back and another […]

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