Titlebook: Pro PowerShell for Database Developers; Bryan Cafferky Book 2015 Bryan P. Cafferky 2015

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Writing Reusable Code,ns. There are two types of . attributes: general attributes and parameter-specific attributes. The general attributes control how the overall function behaves. The parameter-specific attributes give us control over each parameter, including value validation. When a parameter is not provided, a defau

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Extending PowerShell,at we want to make available to our script? Do we need to dot source each function individually? Fortunately, the answer is no. PowerShell provides an elegant way to group a set of functions together into a module so they can be loaded in just one statement. We’ve already used this feature in previo

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Augmenting ETL Processes,ese files usually need to go through some preparation before they can be loaded. Perhaps they arrive via FTP from an external source. Such files may be compressed. Perhaps they need to be scrubbed of bad values or modified to make them easier to load. After being loaded, the business may want the fi

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Configurations, Best Practices, and Application Deployment,oyment. First, we will discuss how to configure PowerShell applications to so as maximize flexibility and ease of maintenance. A nice feature of SQL Server Integration Services (SSIS) is that it has a number of configuration methods. In this chapter, we will discuss how to achieve comparable functio

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PowerShell Jobs, ability to run a script as a background job. However, this requires that the PowerShell session that submitted the job remains active. To avoid this constraint, we can create a scheduled job. PowerShell has a number of cmdlets to support job scheduling. As we will see, these cmdlets are really an i

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PowerShell Workflows,s that can span a long period of time, can be stopped and restarted where they left off, support the parallel execution of tasks, and can be packaged into reusable components. Until PowerShell 3.0, workflows could only be created in Visual Studio using C# or VB.Net. PowerShell 3.0 added support for