Installing Oracle DB is pretty easy wrt other DB services. Here is a step by step process of downloading and installing Oracle DB.
You need to download Oracle DB from this link.
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Once you click on this File 1. It will ask you Login credentials. Fill in your credentials and click on SignIn and your download will start.
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Step 1: Extract the file and double click on setup file. A command prompt will pop-up, wait for a while to begin your installation.
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Step 2: Your Installation has started.
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You can leave this blank or fill in your E-mail id and uncheck the check box. Click on Next.
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Step 3: Use the default Oracle Support Hub and click on continue.
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Step 4: You can choose what type of installation you want. Here I am going with Create and Configure a Database. Click on Next.
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Select the type of System Class you need. Click on Next.
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You can create a new user, here I am going ahead with a Virtual User. Click on Next.
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Provide a password check the path details and click on Next.
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Your installation will take 3-5 minutes.
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Step 5: Click on Install.
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Step 6: Everything is installed click on Next.
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Step 7: All done, click on close.
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You have installed Oracle DB successfully. Let's start the DB. Navigate to Oracle DB and click on SQL Developer.
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It will take 2 min for the first time setup.
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Your interface is ready.
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Now, you can use Oracle DB.