大约有 47,000 项符合查询结果（耗时：0.0518秒） [XML]
MySQL query String contains
...
Quite simple actually:
mysql_query("
SELECT *
FROM `table`
WHERE `column` LIKE '%{$needle}%'
");
The % is a wildcard for any characters set (none, one or many). Do note that this can get slow on very large datasets so if your database grows you'll need to use ...
What should I do if two libraries provide a function with the same name generating a conflict?
...
If you control one or both: edit one to change the name and recompile Or equivalently see Ben and unknown's answers which will work without access to the source code.
If you don't control either of them you can wrap one of them up. That is compile another (statically linked!) libr...
Is it true that one should not use NSLog() on production code?
...ions to control the defining (or lack of defining) the DEBUG_MODE.
If you select "Debug" active configuration, DEBUG_MODE will be defined, and the macro expands to the full NSLog definition.
Selecting the "Release" active configuration will not define DEBUG_MODE and your NSLogging is omitted from ...
Why is there no logical xor in JavaScript?
...
JavaScript traces its ancestry back to C, and C does not have a logical XOR operator. Mainly because it's not useful. Bitwise XOR is extremely useful, but in all my years of programming I have never needed a logical XOR.
If you have two boolean variables you can mim...
What is the difference between String.slice and String.substring?
...te #3:slice()==substring()
Using Negative Numbers as an Argument:
slice() selects characters starting from the end of the string
substr()selects characters starting from the end of the string
substring() Doesn't Perform
Note #3:slice()==substr()
if the First Argument is Greater than the Second:
sl...
Postgres - FATAL: database files are incompatible with server
...
If you recently upgraded to 11 or 12 from 10.x you can run the below command to upgrade your postgres data directory retaining all data:
brew postgresql-upgrade-database
The above command is taken from the output of brew info postgres
...
Set cookie and get cookie with JavaScript [duplicate]
...= c_name) {
return unescape(y);
}
}
}
function cssSelected() {
var cssSelected = $('#myList')[0].value;
if (cssSelected !== "select") {
setCookie("selectedCSS", cssSelected, 3);
}
}
$(document).ready(function() {
$('#myList')[0].value = getCookie("se...
SLF4J: Failed to load class “org.slf4j.impl.StaticLoggerBinder”. error
...ove error came after updating the m2e to version 1.1. By removing m2e 1.1 and rolling back to m2e 1.0 everything worked fine. I tried to repeat the problem in Windows and Ubuntu and it gave me the exact same error. Numerous configurations of the slf4j-api and logback were tested but none seem to w...
Splitting a string into chunks of a certain size
...unkSize)
{
return Enumerable.Range(0, str.Length / chunkSize)
.Select(i => str.Substring(i * chunkSize, chunkSize));
}
Please note that additional code might be required to gracefully handle edge cases (null or empty input string, chunkSize == 0, input string length not divisible by...
NullPointerException in Java with no StackTrace
...interException) occurs for the first time, the full stack trace is printed and the JVM remembers the stack trace (or maybe just the location of the code). When that exception occurs often enough, the stack trace is not printed anymore, both to achieve better performance and not to flood the log with...