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Is the NOLOCK (Sql Server hint) bad practice?
...pdate then moves onto updating the covering index. UPDATE reaches an index range locked by the SELECT and becomes blocked. SPID 1) still seeking through the covering index, finds a range locked by the UPDATE and becomes blocked. DEADLOCK. Nothing can solve that deadlock (except catching SQL Server e...
Convert char to int in C and C++
... unsigned, and char) is more delicate than it first appears. Values in the range 0 to SCHAR_MAX (which is 127 for an 8-bit char) are easy:
char c = somevalue;
signed char sc = c;
unsigned char uc = c;
int n = c;
But, when somevalue is outside of that range, only going through unsigned char gives ...
Storing Images in DB - Yea or Nay?
...many databases beat many files systems, even when we're only talking about raw speed.
The correct course of action is to make the right decision for your precise scenario, and to do that, you'll need some numbers and some use case estimates.
...
Why doesn't C have unsigned floats?
I know, the question seems to be strange. Programmers sometimes think too much. Please read on...
12 Answers
...
How to compare if two structs, slices or maps are equal?
...) != len(b.Z) || len(a.M) != len(b.M) {
return false
}
for i, v := range a.Z {
if b.Z[i] != v {
return false
}
}
for k, v := range a.M {
if b.M[k] != v {
return false
}
}
return true
}
...
Missing Push Notification Entitlement
...entitlements file you made, right click in the empty file and select "Show Raw Keys/Values"
Add a new entry to the entitlements file called "aps-environment" and set it's value to "production"
One key note, if you were previously using the keychain-access-groups entitlement, you'll want to add that ...
Count work days between two dates
...king days is to use a WHILE loop which basically iterates through a date range and increment it by 1 whenever days are found to be within Monday – Friday. The complete script for calculating working days using the WHILE loop is shown below:
CREATE FUNCTION [dbo].[fn_GetTotalWorkingDaysUsingLo...
How to show math equations in general github's markdown(not github's blog)
...wer and this answer.
GitHub support only somtimes worked using the above raw html syntax for readable LaTeX for me. If the above does not work for you another option is to instead choose URL Encoded rendering and use that output to manually create a link like:
![\Large x=\frac{-b\pm\sqrt{b^2-4...
How can I increment a char?
...eturn chlist[0]
# Increment
inc = ''
over = False
for i in range(1, len(text)+1):
lchar = text[-i]
pos = chlist.find(lchar) + 1
if pos < chlen:
inc = chlist[pos] + inc
over = False
break
else:
inc = ch...
What is the difference between instanceof and Class.isAssignableFrom(…)?
...Note
Originally this post was doing its own benchmark using a for loop in raw JAVA, which gave unreliable results as some optimization like Just In Time can eliminate the loop. So it was mostly measuring how long did the JIT compiler take to optimize the loop: see Performance test independent of th...