By Bryan P. Cafferky
Seasoned PowerShell for Database builders is a deep dive into specialist program improvement utilizing home windows PowerShell. builders of database-backed functions will locate no higher identify to assist them research and observe Microsoft’s strong scripting toolset in a database or firm atmosphere. You’ll discover ways to use PowerShell as a full-fledged improvement platform on which to construct client-facing functions and as an ETL platform. Many sensible examples are coated that may be pulled out and utilized instantly to unravel actual global problems.
Chapters gradually movement from the fundamentals of our environment via to writing easy scripts and finally directly to writing full-fledged, GUI-based functions in PowerShell. A spotlight of the e-book is its broad insurance on utilizing PowerShell as an ETL platform. Glue jointly the parts in an ETL workflow. enforce an ETL workflow fullyyt inside of PowerShell. hook up with disparate information assets comparable to SQL Server, Oracle Database (via ADO.NET), Microsoft entry, Microsoft Excel, and more.
PowerShell is excellent for scripting repetitive projects. It’s additionally very good for light-weight software improvement. professional PowerShell for Database builders is helping you create standalone purposes that you just may perhaps use for in-house deployment of software purposes and desk upkeep functions. The booklet exhibits how one can create graphical person interfaces from PowerShell utilizing home windows kinds. You’ll even learn how to turbocharge your purposes via parallelism and multi-threading performed via home windows Workflow.
Examines PowerShell as a improvement language, going over the professionals and cons whereas delving into the original positive factors to be had and the restrictions you should be conscious of.
Progressively expands your wisdom of PowerShell via a number of examples of utilising PowerShell to complete commonly-required tasks.
Covers technically deep functionali
ty similar to multi-threading, interfacing with SQL Server and different databases, and utilizing home windows kinds to run a GUI.
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Sample text
In the script pane, enter the script shown in Figure 1-10 and click on the green arrow which will run the script. Notice that the gray box in the toolbar turned red, as shown in Figure 1-11. 11 Chapter 1 ■ PowerShell Basics Figure 1-11. The PowerShell ISE —A running script The red box indicates that the script is running. Remember this, because sometimes you may not realize your script is still executing when you are testing it. Enter your name when prompted in the command pane. You should see a message come back greeting you and telling you the current date and time, as shown in Figure 1-12.
Let’s review two of them to contrast the different methods. First, let’s set up the text file as shown in Listing 2-1. 19 Chapter 2 ■ The PowerShell Language Listing 2-1. txt" The first line in Listing 2-1 sets the current folder to the user’s default. The second line uses a PowerShell feature called a here string to create the file. We will discuss what here strings are later, but for now just know this will create a text file with exactly what is in the quotes. Note: The following two code examples require the default location be set to $env:USERPROFILE.
Later, I will cover more sophisticated ways to maximize code reusability, but script blocks offer the simplest way to get some of the benefits. MessageBox]::Show($message , $title, $type) And you want to display message boxes from different places in your script. After all, it is a useful bit of code. MessageBox]::Show($message, $title, $type) is not very easy to remember, and it would be possible to mess up the format. What if we could code this statement in such a way as to make it easy to call wherever we need it?