It actually does matter because two on times without an...

If Member_MRN_lkupAllMBRNOs is a multi-statement table-valued user-defined function, that alone is going to cause pretty massive performance heads. Either switch it to being an in-line function, or eliminate the...

It doesn't matter if the 'on' is followed by 'on' or 'off', just add up all the 'on' times.

;WITH cte_switches_with_next_time AS (
    SELECT friendlyName,...

I provided the exact command to do that in my earlier code.

That's a lot of images at one time.  I suggest starting at 10K or even 5K and see how that goes first.

Btw, be sure to use sp_tableoption before UPDATEing the...

I kinda wondered why the column data needed to have 'MB' in it when the column name said 'MB'?!

STRING_AGG is not available in SQL Server 2016.

SQL will separately use each one in order as the previous one gets full.  That is, only one log file per db is ever used at one time.  Unlike data...

I'm not exactly sure what result you want, but if you want only a single result you need to add an ORDER BY to the query.  A TOP (1) without...

Using a sub-SELECT should help, even if the main "table" is actually a view.

SELECT job_op.seq, job_op.description, job_op.part, job_op.router, job_op.router_seq, 
    (SELECT /*TOP (1)*/ job_op_wc.workcenter...

Just off the top of my head, here's on way:

DROP TABLE IF EXISTS #RELATIONSHIP_FLATTENED;
SELECT TOP (0) [CASE], INDIVIDUALID AS ID
INTO #RELATIONSHIP_FLATTENED
FROM RELATIONSHIP
--
CREATE UNIQUE CLUSTERED INDEX [RELATIONSHIP_FLATTENED__CL] 
...

Did you pre-allocate enough log space to handle the entire insert?

I had a load task that took 4+ hours.  I noticed the initial log size was very small.  After I...

What "index maintenance" do you perform on the heap?!

I think a REBUILD should release unused space from a heap.  REBUILD is just:

ALTER TABLE <your_table_name_here> REBUILD;

That load query is fairly straightforward.  I think SQL should be able to write output as it is generated, reducing memory requirements.  Would have to see the query plan to...

I think this will help ( but maybe not?! 🙂 ).  What I sometimes do is rather than using fully dynamic SQL, I use placeholder column names and then rename...