Msg 195: STRING_SPLIT Is Not a Recognized Built-In Function Name

Yesterday, I was writing some Transact SQL to dust off the cobwebs. I got confused when I was playing around with the STRING_SPLIT function, and kept getting the error:

Msg 195, Level 15, State 10, Line 2
'STRING_SPLIT' is not a recognized built-in function name.

I checked my database compatibility level, which must be 130 or higher for the function to be available. My database compatibility level was 160, so that was fine.

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Fix My Functions: Speeding Up Scalar and Table Valued UDFs (video)

Last week, I presented on the topic of TSQL User Defined Functions (UDFs) in SQL Server at the PASS Summit.

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CROSS APPLY in T-SQL: Why to APPLY

Michelle asked a great question:

In your own words, why would one want to use a cross apply operator rather than a join operator? I’m old school, and I’m just not getting why a cross apply would be so much better to use than a join.

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Adaptive Queries in Standard Edition: Interleaved Exec for Multi-Statement TVFs

It’s tough to keep track of which features work in each version of SQL Server, and which Editions support them.

My memory told me that the new Adaptive Joins feature in SQL Server 2017 was Enterprise Edition only…  and that’s correct, but I didn’t realize that the fancy new feature to make Multi-Statement TVFs smarter has much wider licensing.

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Why Is My Function Missing From sys.dm_exec_query_stats and Query Store?

I just spent 90 minutes of my life figuring out a detail about sys.dm_exec_query_stats which I’m pretty sure I figured out five years ago, but didn’t write a blog post about.

Time to write a blog post, so I can save time when I go searching for this in a couple years.

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