![]() The SQL where and the SPL where/search generally do the same thing, the only difference should be the syntax. Then modify the search to append the values from the a field to the values in the b and c fields. To understand how the selfjoin command joins the results together, remove the selfjoin joiner portion of the search. and will then overwrite the original lookup (it is always advisable to test the results before performing this overwrite as errors can be embarrassing to fix). you can see examples in the links I supplied. Use the selfjoin command to join the results on the joiner field. If all you want to do is read the contents of the lookup try the inputlookup command. The difference between where and search, in my opinion, is that search is best for field to value comparisons and where is better for field to field comparisons (or evaluating a field and comparing it to a value). Where can be used to eliminate fields that don't match certain criteria, as can the search command. To elaborate, i'll answer your second part: If the OUTPUTNEW clause is specified, the lookup is not performed for. OR can also be used in where and search statements. If the OUTPUT clause is specified, the output lookup fields overwrite existing fields. ![]() To learn more about the lookup command, see How the lookup command works. You can also use OR in eval statements, such as |eval newhost=if(host = x OR host = y,"xy",host) would create a field called newhost with values xy when the host is either x or y, otherwise the value would be any other host value. The following are examples for using the SPL2 lookup command. In host = x OR host = y you will retrieve data from both y and x hosts. There is also this doc that can help you understand a bit of the linguistics One I'd recommend is Power of SPL, the recording isn't up but the slides are. conf2017 that could help you learn some basic SPL Use at your own risk.There were some great sessions at. Syncing lookups between your development and production or Enterprise Security and Ad-hoc search heads is no longer a problem! Feel free to install the SA or simply copy and paste the SPL from the macro as needed. This output can then be piped to the outputlookup command and written to a local file.Īutomating this transfer is now as simple as creating a scheduled search. I created a macro with some SPL magic that retrieves the lookup and reformats the contents into a table. If you run this search, you will notice the contents of the lookup are merged into a single value. In most cases you can use the WHERE clause in the from command instead of using the where command separately. See Predicate expressions in the SPL2 Search Manual. | rest splunk_server=sh1 /services/search/jobs/export search="| inputlookup demo_assets.csv" output_mode=csv | fields value If an OUTPUT or OUTPUTNEW clause is not specified, all of the fields in the lookup table that are not the match field are used as output fields. The where command expects a predicate expression. Using the following search, I could retrieve the contents of the lookup file named “demo_assets.csv” from sh1: I then added SH1 as a search peer to SH2. ![]() I setup two search heads in my lab environment, sh1 with a “demo_assets.csv” lookup and sh2 without the lookup. I then realized I could do the same thing using rest command on a search head. I knew I could run a curl command from the operating system, execute any search, and retrieve the contents of a lookup using Splunk’s robust REST API. I then knew the solution, I needed to figure out a way to run the inputlookup command remotely. I began looking at existing REST endpoints and realized there was not one that would retrieve the contents of a lookup file. I was hoping the inputlookup command allowed for the use of splunk_server, but it didn’t. Knowing that Splunk can search a specific search peer using the splunk_server parameter, I added the source search head to the destination search head. However, I wanted to use pure SPL so this solution could be completely portable, and usable without installing additional apps. Since Splunk is a very open platform, I knew this could be accomplished using a custom REST endpoint. I was working with a customer a couple weeks ago who has several search heads and wanted a way to sync lookup files without relying on third party tools such as rsync. If you have seen my previous post “ Upgrading Linux Forwarders Using the Deployment Server”, you can see that I love figuring out how to do unconventional tasks using Splunk.
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