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Tips for using SQL Server 2017 Integration Services (Part 3)

Tips for using SQL Server 2017 Integration Services (Part 3) Use breakpoints when you debug the packages. SQL Server 2017 Integration Services provide the ability to set breakpoints on packages, containers, and task events. Using breakpoints can help you debug your packages and find potential problems during the testing before transferring to production environments. Consider deploying a cache file together...

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Tips for using SQL Server 2017 Integration Services (Part 2)

Tips for using SQL Server 2017 Integration Services (Part 2) Try to eliminate logging. Use logging during debugging and troubleshooting and eliminate unneeded logging when deploying completed packages to production. Use checkpoints to restart the package from the failed task instead of having to rerun the whole package. In SQL Server 2017 Integration Services a package that fails during execution...

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Tips for using SQL Server 2017 Integration Services (Part 1)

Tips for using SQL Server 2017 Integration Services (Part 1) If you need to distribute data rows to multiple downstream data flow components, you can use the Conditional Split and Multicast transformation. This transformation was first added in SQL Server 2005 Integration Services and make easy for developers to build packages with complex data flow without writing any code. Try...

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Some useful SQL Server 2017 Transact-SQL optimization tips (Part 2)

Some useful SQL Server 2017 Transact-SQL optimization tips (Part 2) Try to avoid using the DISTINCT clause, whenever possible. The DISTINCT clause should only be used if you know that duplicate returned rows are a possibility. Because using the DISTINCT clause will result in some performance degradation, you should use this clause only when it is necessary. Use table variables...

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Some useful SQL Server 2017 Transact-SQL optimization tips (Part 1)

Some useful SQL Server 2017 Transact-SQL optimization tips (Part 1) Try to avoid using SQL Server cursors, whenever possible. SQL Server cursors can result in some performance degradation in comparison with select statements. Try to use correlated subquery or derived tables, if you need to perform row-by-row operations. Encapsulate your Transact-SQL code inside a transaction when you modify database, not...

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Tips for designing SQL Server 2017 tables (Part 1)

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

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

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

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

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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