Jun 8, 2012 · What is the best way to get a unique value in the employeeNum field (possibly based on an md5 hash of the userid field) on all the rows in which a value isn't already present.

May 14, 2016 · A hash doesn't generate a "next ID", so it's not a substitute for a numerical ID. Unless you meant a hash of something plus a numerical ID. Otherwise, a collision is likely. …

But from a technical point of view, there is no way to identify a hash; as it would be counter-productive to the goal of security :) (it would take up useless bits in the hash itself to do this …

When we execute any sql statement in Oracle, a hash value is being assigned to that sql statement and stored into the library cache. So, that later, if another user request the same …

Dec 2, 2017 · All hash functions are guaranteed to have collisions. While the chances of a collision are extremely low, there might be ways to guarantee that you will never have …

Sep 16, 2008 · What is the best way to generate a Unique ID from two (or more) short ints in C++? I am trying to uniquely identify vertices in a graph. The vertices contain two to four short …

Jun 4, 2009 · Get the hash for the current commit, and see if git status is "clean" or "dirty" I want to see 72361c8 or 72361c8-dirty for use in my build system version numbers injected into my …

Apr 23, 2019 · Is there a way of encryption that can take a string of any length and produce a sub-10-character hash? I want to produce reasonably unique ID's but based on message contents, …

Is there a cleaner way to get the short version hash of HEAD from Git? I want to see the same output as I get from: git log -n 1 | head -n 1 | sed -e 's/^commit //' | head -c 8 I originally used...

Jul 17, 2018 · Don't have to send the whole diff, just send the IDs. Third, and this is the genius, two commits with the same IDs have the same history. That's why the ID of the previous …