SQL Server Articles


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Guide to SQL Server Table Indexes – Part 3

In the first part of this article series, you learned about the basics of SQL Server database table’s indexes, the difference between the clustered and non-clustered indexes, and how the leaf nodes, non-leaf nodes, and heaps associated with data storage. In the second part, you learned about the different types of indexes available in SQL […]

Guide to SQL Server Table Indexes – Part 2

In the first part of this article series, you learned about the basics of SQL Server database table’s indexes, the difference between the clustered and non-clustered indexes, and how the leaf nodes, non-leaf nodes, and heaps associated with data storage. In this part and next part, you will learn about the different types of indexes […]

Guide to SQL Server Table Indexes – Part 1

Overview One of the most important tasks for every database administrator (DBA) is to ensure that query times are consistent with service-level agreement (SLAs) or within user expectations. One of the most effective techniques to achieve this objective is to create indexes on tables for your queries.  SQL Server uses indexes to sort and organize […]

Package and MSDTC Transaction Configuration

Introduction Once application development is complete, we need to move deployment packages to the production environment. To simplify the deployment process Microsoft has provides a utility tool called the deployment manifest which takes care of the package deployment. However, if your package utilizes transactions we need to take some measures in order to avoid connection […]

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 […]

Understanding SQL Server Query Optimization Statistics

In this article, you will learn what query optimisation statistics are and how SQL Server query optimizer uses statistics. You will also learn how to create and manage statistics, and what are the different ways to determine when statistics were last updated in SQL Server. What are Query Optimization Statistics? The term statistics refers specifically […]

Export to XML Using SSIS

Recently I was given a task to export data in XML format using SSIS. I initially thought it should be straight forward – just dump it in a flat file and give it a name xml type, however SSIS has no XML destination just an XML source. I had no luck dumping the XML in […]

Avoiding Parameter Sniffing in SQL Server

Parameter sniffing is when SQL Server compiles a stored procedure’s execution plan with the first parameter that has been used and then uses this plan for subsequent executions regardless of the parameters. First let’s look at a worked example. Assume we have table as below. CREATE Table TblData (ID INT IDENTITY PRIMARY KEY , Name […]

SQL Server Transactions and Locking – Part 2

In the first part of SQL Server Transactions and Locking article series, you learned the basics of SQL Server transactions, how they work and how to handle them, and how to write procedures that use transactions. In this part, I will give an overview of SQL Server locking and transaction isolation levels, how to set […]

Migrating SQL Server Databases – The DBA’s Checklist (Part 3)

Continuing from Part 2 of the Database Migration Checklist series: Step 10: Full-text catalogs and full-text indexing This is one area of SQL Server where people do not seem to take notice unless something goes wrong. Full-text functionality is a specialised area in database application development and is not usually implemented in your everyday OLTP […]
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