Category: Powershell

Joey D’Antoni needs a good IP address:

I had a client ask me to write a PowerShell script (for an Azure Automation runbook) to automate the creation of firewall rules for an Azure SQL Database. As part of this process, I was planning on having to validate the IP addresses (a valid IP address is of the format x.x.x.x where x is an integer between 0 and 255) by having to write some code to split the IP address string into individual octets and figuring out if each value was a valid number. However, in doing research (searching Stack Overflow), I discovered PowerShell has a built-in IP address data type, which made my life way easier.

Read on to see how you can use this to your advantage.

Kenneth Fisher avoids overloading:

In SQL Server both the set and equality functions are handled by the equals sign (=). 

[…]

However, in some other languages that’s not how it works. In PowerShell for example the equals sign is always a set operation. 

Click through to learn the difference, as well as what Powershell uses for equality operations. I think my favorite language for this is Scala, where I jokingly say = means “is equal to,” == means “is really equal to,” and === means “is equal to and I totally mean it.”

Jack Vamvas wants us to remember who we are:

Question: I’m executing a Powershell Script . When I started the Powershell console , it was the “different user” option.

Within the powershell script – I want to check\confirm the current user executing the script.

Read on to learn how.

Emanuele Meazzo was in a bind:

If you read my previous article on how to configure a Linked server to Oracle , you know that I feel like someone is plotting to keep the topic of how to get our precious data outside of the Oracle ecosystem as obscure as possible out of the oracle circle
Fear not! I’m here to get you all the info in order to get data from Oracle Database via Powershell, in a native high-performance way, allowing you to create a multithreaded, reliable and connected ETL flow to feed a data warehouse from Oracle data, like the owner of this blog, or just move quickly some data from one place to another, programmatically, whatever it’s your need.

I support any effort to get data away from Oracle. Click through for the script and an explanation of each step.

Jeffrey Hicks follows up on a prior post:

Last week I shared a little nugget about making PowerShell life easier by using the built-in variable, $PSDefaultParameterValues. This is a special hashtable where you can define default parameter values for any PowerShell command. This means any PowerShell script or function that has defined parameters AND uses [cmdletbinding()]. If you have a simple function that only uses a Param() block, $PSDefaultParameterValues won’t work for that function. I recommend that all PowerShell functions use [cmdletbinding()] so hopefully, this won’t be an issue. Since I received some positive feedback and a few questions on the previous post, I thought a quick follow-up might be in order.

Read on for additional useful information regarding $PSDefaultParameterValues.