If you see the image below, these are the different types of Splunk lookup which I will be explaining in detail below. It can translate fields into more meaningful information at search time.Splunk lookup command can accept multiple event fields and destfields.It enriches the data while comparing different event fields.Splunk Lookup helps you in adding a field from an external source based on the value that matches your field in the event data.A lookup table is a mapping of keys and values.Suppose you have product_id=2 and the name of the product is present in a different file, then Splunk lookup will create a new field – ‘product_name’ which has the ‘product_id’ associated with it. ![]() Lookup can help you to map the details of the product in a new field. For example, you have a product_id value which matches its definition in a different file, say a CSV file. You might be familiar with lookups in Excel. So, let’s get started with Splunk Lookup. ![]() I have also explained how these fields can be extracted in different ways. On the other hand, Splunk fields help in enriching your data by providing a specific value to an event. I will discuss why lookups are important and how you can associate data from an external source by matching the unique key value. In this blog, I am going to explain the following concept – Splunk lookup, fields and field extraction. In my previous blog, I explained Splunk Events, Event types and Tags that help in simplifying your searches.
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