Tag: performance

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Tips for using indexes in SQL Server 2016 (Part 2)

Tips for using indexes in SQL Server 2016 (Part 2) Drop indexes that are not used. Because each index take up disk space and slow down the adding, deleting, and updating of rows, you should drop indexes that are not used. You can use Database Engine Tuning Advisor to identify indexes that are not used in your queries. Keep your...

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SQL Server 2016 Transact-SQL Optimization Tips (Part 1)

SQL Server 2016 Transact-SQL Optimization Tips (Part 1) Consider using a new query hint NO_PERFORMANCE_SPOOL. This hint was first introduced in SQL Server 2016 and can prevent a spool operator from being added to query plans. This can improve performance when many concurrent queries are running with spool operations. Try to restrict the queries result set by using the WHERE...

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Tips for using SQL Server 2016 Integration Services (Part 3)

Tips for using SQL Server 2016 Integration Services (Part 3) Consider encrypting Integration Services packages. SQL Server 2016 Integration Services packages can be encrypted with various levels of encryption. By encrypting packages, you can protect sensitive data. If you need to modify column values, you can use the Data Conversion and Derived Column transformations. These transformations were first added in...

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Tips for using SQL Server 2016 Integration Services (Part 1)

Tips for using SQL Server 2016 Integration Services (Part 1) Integration Services (SSIS) were first introduced in SQL Server 2005 and replace the Data Transformation Services (DTS). By using the SSIS you can load data into or out from SQL Server relational databases or data warehousing. In this article, you can find some tips to boost the SQL Server 2016...

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Some tips for using linked servers in SQL Server 2016

Some tips for using linked servers in SQL Server 2016 Try to avoid the ad hoc queries that use the OPENROWSET or the OPENDATASOURCE functions to access remote data. Create a linked server and perform a linked server’s query instead of using an ad hoc query with OPENROWSET or OPENDATASOURCE functions. Using the linked server’s queries to access remote data...

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Tips for using Very Large Databases in SQL Server 2016

Tips for using Very Large Databases in SQL Server 2016 Try to create as many database files, as there are physical disk arrays so that you have one file per disk array. This will improve performance, because when a table is accessed sequentially, a separate thread is created for each file on each disk array in order to read the...

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Some tips for using SQL Server 2016 distributed queries

Some tips for using SQL Server 2016 distributed queries Try to avoid using distribution queries or minimize it using. Because distribution transactions incur more overhead than general transactions, avoid using distribution queries, whenever possible. The first steps to optimize distributed queries against a SQL Server 2016 linked server is rewriting queries so, that the most work will be performed on...

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SQL Server

Some tips for using User-Defined Functions in SQL Server 2016

Some tips for using User-Defined Functions in SQL Server 2016 Use scalar user-defined functions when you need to do the same mathematical calculations at multiple places in code. For example, if you need to calculate the factorial for the given number, you can write appropriate scalar user-defined function to encapsulate code for reuse. Consider using CLR user-defined functions. The CLR […]