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The World’s Largest Community of SQL Server Professionals. Top 10 SSIS Best Practices. Tim Mitchell Artis Consulting. Session Objectives. Review and discuss common best practices Q&A. Tim Mitchell. Business Intelligence Consultant – Artis Consulting, Dallas TX
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The World’s Largest Communityof SQL Server Professionals Top 10 SSIS Best Practices Tim Mitchell ArtisConsulting
Session Objectives Review and discuss common best practices Q&A The World’s Largest Community of SQL Server Professionals
Tim Mitchell Business Intelligence Consultant – Artis Consulting, Dallas TX Contributing author, MVP Deep Dives 2 Coauthor, SSIS Design Patterns North Texas SQL Server User Group SQL Server MVP TimMitchell.net | Twitter.com/Tim_Mitchell The World’s Largest Community of SQL Server Professionals
Housekeeping Questions Surveys The World’s Largest Community of SQL Server Professionals
Disclaimer My best practices != the only way The World’s Largest Community of SQL Server Professionals
Best Practice #1: Configurations Externalize logic for packages Easier administration, maintenance Change once globally The World’s Largest Community of SQL Server Professionals
Best Practice #1: Configurations The World’s Largest Community of SQL Server Professionals
Best Practice #1: Configurations The World’s Largest Community of SQL Server Professionals
Best Practice #2: Package Protection Level • Never use EncryptSensitiveWithUserKey • When possible, use DontSaveSensitive • Previous tip • If you must encrypt, use EncryptSensitiveWithPasswordor EncryptAllWithPassword The World’s Largest Community of SQL Server Professionals
Best Practice #2: Package Protection Level The World’s Largest Community of SQL Server Professionals
Best Practice #3: Row Count Audit • In/out rowcount for proper package audit • Insure precise control over data pipeline • May help satisfy regulatory requirements The World’s Largest Community of SQL Server Professionals
Best Practice #3: Row Count Audit The World’s Largest Community of SQL Server Professionals
Best Practice #3: Row Count Audit The World’s Largest Community of SQL Server Professionals
Best Practice #4: Lookup Cache Modes • Default = Full Cache • Full Cache is case sensitive, other modes depend on database collation • UPPER() and LOWER() • Partial cache • No cache – avoid if possible The World’s Largest Community of SQL Server Professionals
Best Practice #4: Lookup Cache Modes The World’s Largest Community of SQL Server Professionals
Best Practice #5: Event Handlers • Handle various events, errors and otherwise • Address errors inline • Respond to other events The World’s Largest Community of SQL Server Professionals
Best Practice #5: Event Handlers The World’s Largest Community of SQL Server Professionals
Best Practice #6: Small SSIS Packages • One package = one logical unit of work • Load a fact table • Load a single dimension • Easier to debug • Faster validation • Reusability The World’s Largest Community of SQL Server Professionals
Best Practice #6: Small SSIS Packages The World’s Largest Community of SQL Server Professionals
Best Practice #7: Logging • Log errors, warnings • Capture other standard events • Custom logging (supplement) The World’s Largest Community of SQL Server Professionals
Best Practice #7: Logging The World’s Largest Community of SQL Server Professionals
Best Practice #8: Script instead of complex expression • Replace complex expressions with script task or script component • Easier to develop • Inline comments • Intellisense • Error handling The World’s Largest Community of SQL Server Professionals
Best Practice #8: Script instead of complex expression The World’s Largest Community of SQL Server Professionals
Best Practice #9: Naming Convention • Use descriptive names for containers, tasks, components • Use a standard naming convention for SSIS objects • No functional difference, but helps to quickly identify type • SSIS API The World’s Largest Community of SQL Server Professionals
Best Practice #10: MERGE • T-SQL MERGE statement usually outperforms SSIS SCD components (native or 3rd party) • Some limits on use • Staging The World’s Largest Community of SQL Server Professionals
Best Practice #11: Annotations • Document, document, document • Easy value add The World’s Largest Community of SQL Server Professionals
Best Practice #12: Variables • Naming convention • Package scope • Expressions The World’s Largest Community of SQL Server Professionals
Best Practice #13: ETL Frameworks • Managed execution of packages • Group packages according to function, dependency, and precedence • Unified logging and error handling • Free and commercial tools The World’s Largest Community of SQL Server Professionals
Best Practice #14: Custom Components • Repetitive use of the same logic in multiple packages • Custom component allows easy deployment The World’s Largest Community of SQL Server Professionals
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