Viewing 15 posts - 2,011 through 2,025 (of 7,616 total)
No, the specific values are essentially the REPLACE equivalent of a binary search.
The initial code came from someone else. It performs really well overall, better than other methods, so I...
December 31, 2020 at 3:23 pm
Say you have a 10GB table with 1 clus and 14 nonclus indexes, each with 1 column. You "tell" SQL to rebuild ALL indexes. Would SQL scan the table 15...
December 31, 2020 at 5:03 am
Well, yeah, it won't cover everything, but then again nothing will. It prevents the most common thing where someone just leaves off the WHERE clause.
December 31, 2020 at 4:28 am
The SQL internals books are generally very good. Particularly those by Kalen Delaney. Sadly the last one was SQL 2012, I think. I'd pick up a new one by someone...
December 31, 2020 at 4:22 am
It's more involved, but you can also create a trigger(s) that insures that a WHERE clause was included on all DELETEs and UPDATEs. And add an override just in case...
December 31, 2020 at 4:19 am
In general you should always review the clustered indexes first, to make sure the single best clus index key(s) was(were) chosen for each table. In particular, that an identity was...
December 31, 2020 at 4:17 am
Many of us don't use SQL Sentry. Many of us don't use 7zip either. You might want to use a lower-common-denominator approach to all attachments so that more people can...
December 31, 2020 at 4:15 am
1 - Can you explain the difference between a LEFT JOIN, a RIGHT JOIN, and an INNER JOIN?
I'm curious as to why you left out FULL OUTER JOIN? I'm...
December 31, 2020 at 4:13 am
After the other REPLACEs, you might as well replace all multiple spaces with a single space, to avoid any possible issues with, for example, " AS ". The actual REPLACEs...
December 31, 2020 at 4:01 am
Even if the db is not normally in SIMPLE mode, you would certainly want it to be in SIMPLE for these rebuilds, to drastically reduce logging requirements.
If the...
December 31, 2020 at 3:55 am
With a table that large, say you have a total of 6 indexes, 1 clus and 5 nonclus.
I'd expect it to be faster to do a REBUILD...
December 31, 2020 at 3:54 am
ONLINE rebuilds must be fully logged. Make sure you have pre-allocated enough log space to handle the ONLINE rebuild before issuing the command.
Then, try an ONLINE rebuild on an index. ...
December 30, 2020 at 4:33 pm
Even if the db is not normally in SIMPLE mode, you would certainly want it to be in SIMPLE for these rebuilds, to drastically reduce logging requirements.
If the db is...
December 30, 2020 at 4:31 pm
Btw, I suggest not using the term "magical tables" in your interview. It sounds rather unknowledgeable about relational dbms's.
December 29, 2020 at 10:01 pm
Oh, virtual tables. Yeah, SQL has lots of virtual tables.
Yes, you could easily be asked about the inserted and deleted tables. You can treat these as regular (physical) tables in...
December 29, 2020 at 9:59 pm
Viewing 15 posts - 2,011 through 2,025 (of 7,616 total)