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Foreign key constraints: When to use ON UPDATE and ON DELETE
...ations requesting it (or just one application but with a direct mode and a batch mode using different sources).
With MySQL you do not have advanced constraints like you would have in postgreSQL but at least the foreign key constraints are quite advanced.
We'll take an example, a company table with...
RESTful Alternatives to DELETE Request Body
...te without optimistic concurrency and a delete that doesn't have an atomic batch operation isn't practical in real-life situations. This is a serious deficiency with the REST pattern.
– Quarkly
Oct 9 '19 at 11:19
...
How to remove/delete a large file from commit history in Git repository?
... minute.
The Base Script
git rev-list --objects --all \
| git cat-file --batch-check='%(objecttype) %(objectname) %(objectsize) %(rest)' \
| awk '/^blob/ {print substr($0,6)}' \
| sort --numeric-sort --key=2 \
| cut --complement --characters=13-40 \
| numfmt --field=2 --to=iec-i --suffix=B --paddi...
When to use actors instead of messaging solutions such as WebSphere MQ or Tibco Rendezvous?
... concurrency model than Actors
Example system: A scheduled transactional batch processing system
EDIT based on concerned comments
I made an assumption that the OP was concerned with distributed processing which both Akka and Message Queues can handle. That is I assumed he was talking about distr...
Big-O for Eight Year Olds? [duplicate]
...ithout changing your architecture around (eg by moving things to overnight batch computations, or not doing things per-frame). It's ok if the input size increases a little bit, though; just watch out for multiples.
O(n^2) "quadratic" - it's really only going to work up to a certain size of your inpu...
Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?
...ors, Intel's "micro-ops fusion" that try to group instructions into larger batches of simultaneous work (kind of like the VLIW/Itanium titanic). There are even cache boundaries that could make the code run faster for god-knows-why if it's bigger (maybe the cache controller slots it more intelligentl...
What are the big differences between TFVC (TFS Version Control) and Git for source control when usin
...rent Beta release doesn't have it yet, I expect it will drop with the next batch :).
– jessehouwing
May 6 '14 at 21:27
8
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Why does Java switch on contiguous ints appear to run faster with added cases?
...9: 289;
100: 300;
110: 311;
120: 322;
130: 333;
140: 344;
150: 355;
160: 366;
170: 377;
180: 388;
190: 399;
200: 410;
210: 421;
220: 432;
default: 443 }
In the first case, with narrow ra...
WiX tricks and tips
...see my answer on multiple versions of the same product). For example, this batch file automatically harvests RoboHelp output.
@echo off
robocopy ..\WebHelp "%TEMP%\WebHelpTemp\WebHelp" /E /NP /PURGE /XD .svn
"%WIX%bin\heat" dir "%TEMP%\WebHelp" -nologo -sfrag -suid -ag -srd -dir WebHelp -out We...
What does .SD stand for in data.table in R
...h among character/factor/numeric are common. We can use .SD and .SDcols to batch-convert groups of such columns.
We notice that the following columns are stored as character in the Teams data set:
# see ?Teams for explanation; these are various IDs
# used to identify the multitude of teams from
...