Biml for Beginners - Generating SSIS Packages with BimlScript (SQLSaturday Exeter)
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The document presents an introduction to Business Intelligence Markup Language (BIML) for generating SQL Server Integration Services (SSIS) packages efficiently, addressing the tediousness of traditional package creation. It outlines how BIML allows developers to automate the generation of packages, manage metadata and schema changes more easily, and leverage reusable code to save time. Key features include BimlScript functionality and best practices for organizing and structuring BIML files for better maintainability.
Biml for Beginners - Generating SSIS Packages with BimlScript (SQLSaturday Exeter)
- 1. Biml for Beginners: Generating SSIS packages with BimlScript Cathrine Wilhelmsen April 25th 2015
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- 4. Session description SSIS is a powerful tool for extracting, transforming and loading data, but creating the actual SSIS packages can be both tedious and time- consuming. Even if you use templates and follow best practices you often have to repeat the same steps over and over again. There are no easy ways to handle metadata and schema changes, and if there are new requirements you might have to go through all the packages one more time. It's time to bring the Don't Repeat Yourself principle to SSIS development. In this session I will use the free BIDS Helper add-in to show you the basics of Biml and BimlScript, how to generate SSIS packages automatically from databases, how easy those packages can be changed, and how to move common code to separate files that can be included where needed. See why they say Biml allows you to complete in a day what once took more than a week!
- 5. @cathrinew cathrinewilhelmsen.net Data Warehouse Architect Business Intelligence Developer Cathrine Wilhelmsen
- 6. Who are you? (*) SSIS and ETL Developer? Easily bored? Tired of repetitive work? ( * Probably not a cat )
- 7. Why are you here? Long development time? Many SSIS packages? Slow GUI editor? (Drag, drop, drag, drop, connect, drag, drop, connect, resize, align, drag, drop, resize, connect, align…)
- 8. project done! new standards yay Have you ever experienced this?
- 9. How can Biml help you? Timesaving: Many SSIS Packages from one Biml file Reusable: Write once and run on any platform (2005 – 2014) Flexible: Start simple, expand as you learn (Of course I can create 200 packages! What do you need me to do after lunch?)
- 10. Business Intelligence Markup Language Easy to read and write XML dialect Specifies business intelligence objects Databases, schemas, tables, columns SSIS packages SSAS cubes, facts, dimensions (Mist only)
- 11. Highlights in Biml History founded by Scott Currie, is born Biml was extended with Biml compiler added to is launched founded is launched 2008: 2009: 2011: 2012: 2014: 2015:
- 12. How does it work?
- 13. Biml syntax <Biml xmlns="http://schemas.varigence.com/biml.xsd"> <Connections> <OleDbConnection Name="Source" ConnectionString="…" /> </Connections> <Packages> <Package Name="EmptyPackage"> </Package> </Packages> </Biml>
- 14. Biml syntax <Biml xmlns="http://schemas.varigence.com/biml.xsd"> <Connections> <OleDbConnection Name="Source" ConnectionString="…" /> </Connections> <Packages> <Package Name="EmptyPackage"> </Package> </Packages> </Biml> Biml Declaration = Root Element
- 15. Biml syntax <Biml xmlns="http://schemas.varigence.com/biml.xsd"> <Connections> <OleDbConnection Name="Source" ConnectionString="…" /> </Connections> <Packages> <Package Name="EmptyPackage"> </Package> </Packages> </Biml> Logical Objects = Elements
- 16. Biml syntax <Biml xmlns="http://schemas.varigence.com/biml.xsd"> <Connections> <OleDbConnection Name="Source" ConnectionString="…" /> </Connections> <Packages> <Package Name="EmptyPackage"> </Package> </Packages> </Biml> Child Elements
- 17. Biml syntax <Biml xmlns="http://schemas.varigence.com/biml.xsd"> <Connections> <OleDbConnection Name="Source" ConnectionString="…" /> </Connections> <Packages> <Package Name="EmptyPackage"> </Package> </Packages> </Biml> Empty Elements
- 18. Biml syntax <Biml xmlns="http://schemas.varigence.com/biml.xsd"> <Connections> <OleDbConnection Name="Source" ConnectionString="…" /> </Connections> <Packages> <Package Name="EmptyPackage"> </Package> </Packages> </Biml> Attributes
- 19. Demo – Biml
- 20. Getting started with Biml 1. Download and install BIDS Helper (http://bidshelper.codeplex.com) 2. Right-click on SSIS project and click Add New Biml File
- 21. Intellisense Intellisense while typing CTRL+Space to AutoComplete or show Intellisense
- 22. Errors Red squiggly line: Error Blue squiggly line: Missing attribute or child element Error spelling Missing attribute: ConstraintMode
- 23. Errors Hovering over errors will show descriptive text Missing attribute: ConstraintMode Error spelling
- 24. Right-click to Check Biml for Errors
- 25. Your first SSIS Package from Biml Right-click on Biml file and click Generate SSIS Packages Packages will appear under SSIS Packages
- 26. From Biml to SSIS
- 27. From Biml to SSIS
- 28. .biml vs .dtsx human-readable vs. ALL THE CODE!
- 29. I create SSIS packages faster than that
- 30. But wait!
- 31. The magic is in the Extend Biml with C# or VB.NET code blocks Import database structure and metadata Loop over tables and columns Add expressions to replace static values (And anything else you can do in C# or VB)
- 32. BimlScript code blocks <#@ … #> Directives <# … #> Control Blocks <#= … #> Expression Control Blocks
- 33. BimlScript syntax <#@ import namespace="Varigence.Biml.CoreLowerer.SchemaManagement" #> <Biml xmlns="http://schemas.varigence.com/biml.xsd"> <Packages> <# foreach (var table in RootNode.Tables) { #> <Package Name="Load<#=table.Name#>"> </Package> <# } #> </Packages> </Biml>
- 34. BimlScript syntax <#@ import namespace="Varigence.Biml.CoreLowerer.SchemaManagement" #> <Biml xmlns="http://schemas.varigence.com/biml.xsd"> <Packages> <# foreach (var table in RootNode.Tables) { #> <Package Name="Load<#=table.Name#>"> </Package> <# } #> </Packages> </Biml> Directive
- 35. BimlScript syntax <#@ import namespace="Varigence.Biml.CoreLowerer.SchemaManagement" #> <Biml xmlns="http://schemas.varigence.com/biml.xsd"> <Packages> <# foreach (var table in RootNode.Tables) { #> <Package Name="Load<#=table.Name#>"> </Package> <# } #> </Packages> </Biml> Control Blocks
- 36. BimlScript syntax <#@ import namespace="Varigence.Biml.CoreLowerer.SchemaManagement" #> <Biml xmlns="http://schemas.varigence.com/biml.xsd"> <Packages> <# foreach (var table in RootNode.Tables) { #> <Package Name="Load<#=table.Name#>"> </Package> <# } #> </Packages> </Biml> Expression Control block
- 38. Basic for loop <Packages> <# for (int count = 1; count <= 5; count++) { #> <Package Name="Load_Person_Person_<#=count#>"> </Package> <# } #> </Packages>
- 39. foreach (table in a database) loop <#@ import namespace="Varigence.Hadron.CoreLowerer.SchemaManagement" #> <# var conAW2014 = SchemaManager.CreateConnectionNode("AW2014", "Data Source..."); #> <# var AW2014DB = conAW2014.ImportDB("","", ImportOptions.ExcludeViews); #> <Packages> <# foreach (var table in AW2014DB.TableNodes) { #> <Package Name="Load_<#=table.Schema#>_<#=table.Name#>"> </Package> <# } #> </Packages>
- 40. Don't Repeat Yourself Move common code to separate files Centralize and reuse in many projects Update code once for all projects 1. Split and combine Biml files 2. Include files 3. CallBimlScript with parameters
- 41. Split and combine Biml files Multiple Biml files can be compiled together Control compile order by specifying tiers in files <#@ template tier="2" #> Files are compiled into RootNode from lowest to highest tier Higher tiers can use objects in RootNode from lower tiers
- 42. Behind the scenes: compile and load objects into RootNode RootNode <#@ template tier="0" #> <Connections> <Databases> <Schemas> <#@ template tier="1" #> <Tables> <Columns> <#@ template tier="2" #> <Packages>
- 43. <Connections> <Databases> <Schemas>RootNode <#@ template tier="0" #> <Connections> <Databases> <Schemas> <#@ template tier="1" #> <Tables> <Columns> <#@ template tier="2" #> <Packages> compile Behind the scenes: compile and load objects into RootNode
- 44. <Connections> <Databases> <Schemas>RootNode <#@ template tier="0" #> <Connections> <Databases> <Schemas> <#@ template tier="1" #> <Tables> <Columns> <#@ template tier="2" #> <Packages> use Behind the scenes: compile and load objects into RootNode
- 45. <Connections> <Databases> <Schemas> <Tables> <Columns> RootNode <#@ template tier="0" #> <Connections> <Databases> <Schemas> <#@ template tier="1" #> <Tables> <Columns> <#@ template tier="2" #> <Packages> compile Behind the scenes: compile and load objects into RootNode
- 46. <Connections> <Databases> <Schemas> <Tables> <Columns> RootNode <#@ template tier="0" #> <Connections> <Databases> <Schemas> <#@ template tier="1" #> <Tables> <Columns> <#@ template tier="2" #> <Packages> use Behind the scenes: compile and load objects into RootNode
- 47. <Connections> <Databases> <Schemas> <Tables> <Columns> <Packages> RootNode <#@ template tier="0" #> <Connections> <Databases> <Schemas> <#@ template tier="1" #> <Tables> <Columns> <#@ template tier="2" #> <Packages> compile Behind the scenes: compile and load objects into RootNode
- 48. <Connections> <Databases> <Schemas> <Tables> <Columns> <Packages> RootNode <#@ template tier="0" #> <Connections> <Databases> <Schemas> <#@ template tier="1" #> <Tables> <Columns> <#@ template tier="2" #> <Packages> generate Behind the scenes: compile and load objects into RootNode
- 49. RootNode <#@ template tier="0" #> <Connections> <Databases> <Schemas> <#@ template tier="1" #> <Tables> <Columns> <#@ template tier="2" #> <Packages> Behind the scenes: compile and load objects into RootNode
- 50. Demo – Split and combine Biml files
- 51. Split and combine multiple Biml files Create tiered files:
- 52. Split and combine multiple Biml files Select all the tiered files Right-click and click Generate SSIS Packages Behind the scenes: Objects will be compiled and loaded into RootNode from lowest to highest tier
- 53. Split and combine multiple Biml files All packages will be generated at the same time Load packages from 302LoadAllTables.biml Master package from 303MasterPackage.biml
- 54. Include files Include common code in multiple files and projects Use the include directive <#@ include file="CommonCode.biml" #> Include directive will be replaced by content of file Can include several file types: .biml .txt .sql .cs
- 55. Demo – Include files
- 56. CallBimlScript with parameters Works like a parameterized include File to be called (callee) specifies input parameters <#@ property name="Param" type="String" #> Callee can use parameter values as regular variables and to control logic File that calls (caller) provides input parameters <#=CallBimlScript("CommonCode.biml", Param)#> CallBimlScript code block is replaced by Biml returned by callee
- 57. Demo – CallBimlScript with Parameters
- 58. Demo – Don't Repeat Yourself
- 59. View compiled Biml Credits: Marco Schreuder (@in2bi) http://blog.in2bi.eu/biml/viewing-or-saving-the- compiled-biml-file-s/ Helper file with high tier (tier="100") Saves output of RootNode.GetBiml() to file
- 60. What do you do next? 1. Download BIDS Helper 2. Identify your SSIS patterns 3. Rewrite one SSIS package to Biml to learn the basics 4. Expand with BimlScript 5. Get involved in the Biml community
- 61. Biml on Monday... …BimlBreak the rest of the week
- 62. Become a Biml Buccaneer! Next session: Building a meta-driven near realtime ETL solution with BIML and SSIS