Tag: tips

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Tips for designing SQL Server 2017 tables (Part 1)

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Tips for designing SQL Server 2017 tables (Part 1) Avoid using CLR user-defined data types. SQL Server 2017 supports the CLR user-defined data types. These data types allow implement database data types in any of the languages supported by the .NET Framework CLR. Because using these data types usually provides worse performance than internal SQL Server data types, and you...

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Tips for using temporary tables in SQL Server 2017

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Tips for using temporary tables in SQL Server 2017 Consider creating indexes on the very large temporary tables. The temporary tables provides much more efficient way to access their data in comparison with general tables, but if you work with very large temporary tables, using indexes can greatly improve performance. Use Table data type instead of temporary tables whenever possible....

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Tips for using full-text search in SQL Server 2017

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Tips for using full-text search in SQL Server 2017 Make full-text index population during periods of low database access. Because full-text index population takes some time, these updates should be scheduled during CPU idle time and slow production periods. Reduce the full-text unique key size. To create a full-text index, the table to be indexed must have a unique index....

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Tips for using indexed views in SQL Server 2017

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Tips for using indexed views in SQL Server 2017 Keep the indexes on the views as narrow as possible. Because each index takes up disk space try to minimize the index key’s size to avoid using superfluous disk space. This reduces the number of reads required to read the index and boost overall index performance. Try to create indexes on...

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Tips for using bulk copy in SQL Server 2017

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Tips for using bulk copy in SQL Server 2017 Consider using BULK INSERT to insert data from files stored in Azure Blob storage. Beginning with SQL Server 2017 BULK INSERT command enable access data directly from a file specified as CSV format, and from files stored in Azure Blob storage through the new BLOB_STORAGE option of EXTERNAL DATA SOURCE. Use...

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

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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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Tips for using indexes in SQL Server 2016 (Part 1)

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Tips for using indexes in SQL Server 2016 (Part 1) Consider creating the columnstore indexes on the memory-optimized tables. Beginning with SQL Server 2016, you can create a memory-optimized table with a columnstore index. You can use the ALTER TABLE ADD INDEX statement to add the columnstore index after the memory-optimized table is created. Create a clustered index for each...

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Tips for using SQL Server 2016 configuration options

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Tips for using SQL Server 2016 configuration options In this article, you can find the description of some useful SQL Server 2016 configuration options with the examples how to make it by using the sp_configure system stored procedure. Note. Because setting up some SQL Server 2016 configuration options can degrade performance you should change these options very carefully and continue...

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SQL Server 2016 Transact-SQL Optimization Tips (Part 2)

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SQL Server 2016 Transact-SQL Optimization Tips (Part 2) Try to restrict the queries result set by returning only the particular columns from the table, not all table’s columns. This can results in good performance benefits, because SQL Server will return to client only particular columns, not all table’s columns. This can reduce network traffic and boost the overall performance of...

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

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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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