 Hey guys welcome to SSunitech, Sucingy side and today we are going to see about the link services in the ADF. Let's get started. What is the link services? Link services are very much like to connection string which defines the connection information needed for the service to connect the external resources. Those resources could be your Thicco server or your Blob storage. You can think on that way like you are having a data set and that represents the structure of the data. So data set actually contains the actual information of the data. And for getting the data into the data sets we are required to have a connection and that connection is called as a link service. So this is the link service and link services are very similar to the connection strings in the SSIS. So you can simply understand link services are connection strings. So go to on the Azure portal and we will try to create the connection string or link services there. So here I am and we can go inside the manage. So inside the manage we will see the option for the link services. So here you can see the option for the connections and here you can see the link services, integrations and runtimes. Today we are going to more focus on the link services. So here I have already created a link service so let me try to create a new link service. So you can see this new click on that. And after that you can see these are the options available on which we can create the link services. So first I want to create the link service with the Azure Blob storage. So let me go and try to type the blob. So you can see this Azure Blob storage. Let me click the continue. So go to on the second tab and here if you have remember we have created this storage account that is ssq testing and under that we have created this container. So if you haven't watched the videos inside the Azure tutorial so I have created all these there. So you can watch how we can create all these on those videos. So go to on this and here and here first we can rename this. So let me call this as blob storage. So this is the blob. You can define the description under this. And after that here we can see the connect via integration runtime. So we will be going to discuss about the integration runtime later in this video series. So as of now you can skip this and here we can see the authentication method. So the first option the account key and the other options are also available. So let me leave this with the default option that is account key. After that we have the connection string and Azure Key Vault. So for the Azure Key Vault I will record another station. So you can understand about the Azure Key Vault. Here I am going to select this connection string. After that we can see the from Azure subscription or enter everything manually. So I am going to choose the first option. Here we need to select under which subscription we want to create this link service. So we have only one subscription so we can select that. And after that it is asking the storage account. Like on which storage account we want to create the link service. So we can select this SSU testing that we can see here. So on this storage account we are going to create the link service. So once everything is done then we can test the connection from right bottom. So test connection succeed. So we can click on create. So it will create a new link service with this storage account that is SSU testing. So as you can see it is created successfully. So under this we can see the related option. So related we can see zero because we have created this link service. But we are not going to use this service anywhere inside the ADF pipelines. It is related to so in the ADF pipelines two places we are going to utilize this link service. Now let me click on new again. And this time I am going to create the link service with the Azure SQL database. Let me click on continue. Here let me call this with Azure SQL connection history. And after that everything we can leave as it is. Here we can see the select this inter manually. Here on which server we want to connect that is SSUniTech.database.net. So this is your server name. Go to the database name. So the database is SSU. If you have remember in the Azure tutorial playlist we have created the server and we have created the database. So on that server we are going to connect. Now in the username we need to specify PBI and under the password we need to enter the password. Now let me try to click on the test connection. So test connection succeed. We can click on create. So it will create a new link service with the Azure SQL connection that is created. And in that related you can see the zero. So once we will be going to use this connection string here under the related it will be going to increase one by one. So this is all about the link service. So thank you so much for watching this video. 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