SQL Server Articles


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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 […]

Migrating SQL Server Databases – The DBA’s Checklist (Part 2)

Continuing from Part 1  , our Migration Checklist continues: Step 5: Update statistics It is always a good idea to update the statistics of the database that you have just installed or migrated. To do this, run the following command against the target database: sp_updatestats The sp_updatestats system stored procedure runs the UPDATE STATISTICS command […]

Migrating SQL Server Databases – The DBA’s Checklist (Part 1)

It is a fact of life: SQL Server databases change homes. They move from one instance to another, from one version to the next, from old servers to new ones.  They move around as an organisation’s data grows, applications are enhanced or new versions of the database software are released. If not anything else, servers […]

SQL Server Transactions and Locking – Part 1

In many situations, data modification requires several steps. For example, you may need to change the values ​​in two separate tables. You can use transactions to complete these two operations as a unit, or if an error occurs, does not change any of the tables. Another key consideration is that most databases must be compatible […]

Auditing with Microsoft Assessment and Planning (MAP) Toolkit 5.0 – Part 3

Software Usage Tracker New to MAP 5.0 is another feature called the Software Usage Tracker. This is an audit mechanism that allows you to track the number of users or devices accessing your servers. The information from these audits can help people responsible for managing software licensing to get a better picture of Microsoft server […]
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