Author: Alexander Chigrik

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Tips for using query hints in SQL Server 2017

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Tips for using query hints in SQL Server 2017 You can use the KEEP PLAN query hint if you want to reduce the estimated recompile threshold for a query. For example, using this hint reduces the number of recompiles when multiple table updates occur. This example shows how you can use the KEEP PLAN hint: SELECT * FROM authors OPTION...

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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 to work with SQL Server 2017 clustering

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Tips to work with SQL Server 2017 clustering You should proper configure the SQL Server 2017 service accounts. Ensure that each SQL Server 2017 service account is a domain account and a member of the Local Administrators group of each cluster node and a member of the Domain Users group. Set the SQL Server 2017 service accounts passwords to be...

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Tips for using User-Defined Functions in SQL Server 2017

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Tips for using User-Defined Functions in SQL Server 2017 Consider using user-defined table type as a parameter for user-defined function. SQL Server 2017 supports a user-defined table type that supports representing table structures for use as parameters in user-defined function. Using UDF type can simplify user-defined function’s programming and may increase UDF performance. Use TRY-CATCH logic to trap and handle...

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Tips for using Merge Replication in SQL Server 2017 (Part 2)

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Tips for using Merge Replication in SQL Server 2017 (Part 2) If you do not need continuous replication, do not configure the Merge Agent to run continuously. Try to schedule the Merge Agent to run at regular intervals instead of running continuously. Try to schedule it during CPU idle time and slow production periods. By using it, you can decrease...

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Tips for using Merge Replication in SQL Server 2017 (Part 1)

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Tips for using Merge Replication in SQL Server 2017 (Part 1) Avoid using join filters with five or more tables. Because join filters with five or more tables can significantly degrade merge replication performance, you should avoid join filter for the small lookup tables, or denormalize the database design instead of using join filters with five or more tables. Use...

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Tips for using Transactional Replication in SQL Server 2017 (Part 2)

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Tips for using Transactional Replication in SQL Server 2017 (Part 2) Consider using transactional replication to memory-optimized tables. In SQL Server 2017, tables acting as transactional replication subscribers, excluding peer-to-peer transactional replication, can be configured as memory-optimized tables. To configure the subscriber database for supporting replication to memory-optimized tables, you should set the @memory_optimized property to true by using sp_addsubscription...

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Tips for using Transactional Replication in SQL Server 2017 (Part 1)

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Tips for using Transactional Replication in SQL Server 2017 (Part 1) Avoid publishing unnecessary data. Try to restrict the amount of published data. This can results in good performance benefits, because SQL Server will publish only the amount of data required. This can reduce network traffic and boost the overall replication performance. Increase the -MaxBcpThreads parameter of the Distribution Agent....

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Tips for using Snapshot Replication in SQL Server 2017

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Tips for using Snapshot Replication in SQL Server 2017 Run the Snapshot Agent as infrequently as possible. The Snapshot Agent bulk copies data from the Publisher to the Distributor, which results in some performance degradation. So, try to schedule it during CPU idle time and slow production periods. Consider specifying a simple or bulk-logged recovery model for the subscription database....

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