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How to check for file lock? [duplicate]
...OLATION || errorCode == ERROR_LOCK_VIOLATION;
– taiji123
Jul 15 '19 at 14:40
...
SET NOCOUNT ON usage
... text "SET NOCOUNT ON" itself is a whopping 14 bytes. I used to think that 123 row(s) affected was returned from server in plain text in a separate network packet but that's not the case. It's in fact a small structure called DONE_IN_PROC embedded in the response. It's not a separate network packet ...
Why are only final variables accessible in anonymous class?
...s = new int[1];
Runnable r = new Runnable() { public void run() { res[0] = 123; } };
r.run();
System.out.println(res[0]);
// ...
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C# code to validate email address
...e all perfectly valid forms:
cog@wheel
"cogwheel the orange"@example.com
123@$.xyz
For most use cases, a false "invalid" is much worse for your users and future proofing than a false "valid". Here's an article that used to be the accepted answer to this question (that answer has since been delet...
Scaling Node.js
... with hiredis.
PING: 20000 ops 46189.38 ops/sec 1/4/1.082
SET: 20000 ops 41237.11 ops/sec 0/6/1.210
GET: 20000 ops 39682.54 ops/sec 1/7/1.257
INCR: 20000 ops 40080.16 ops/sec 0/8/1.242
LPUSH: 20000 ops 41152.26 ops/sec 0/3/1.212
LRANGE (10 elements): 20000 ops 36563.07 ops/sec 1/8/1.363
LRANGE (100...
Showing commits made directly to a branch, ignoring merges in Git
...
123
--no-merges
Both parents have equal weight in many contexts in git. If you've always been con...
MySQL - why not index every field?
...
123
Indexes take up space in memory (RAM); Too many or too large of indexes and the DB is going to...
How do I add custom field to Python log format string?
...getLogger('Test')
if __name__=='__main__':
logger.logMessage('ERROR','123','This is an error')
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How to debug stream().map(…) with lambda expressions?
...ring[] args) {
List<Integer> naturals = Arrays.asList(3247,92837,123);
List<Integer> result =
naturals.stream()
.map(DebugLambda::timesTwo)
.collect(toList());
}
This might make it easier to see what's going on while you're debugging. In addition...
Explanation of JSONB introduced by PostgreSQL
...esentation, why jsonb doesn't support this? UPDATE test SET data->'a' = 123 WHERE id = 1; from CREATE TABLE test(id SERIAL PRIMARY KEY, data JSONB);
– Kokizzu
Nov 28 '14 at 4:46
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