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PostgreSQL LIKE query performance variations
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This only works if the pattern doesn't start with a wildcard - in this case the first two sample queries both start with a wildcard.
– cbz
Jul 25 '19 at 15:15
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How to SSH to a VirtualBox guest externally through a host? [closed]
...VM's Settings > Network. First adapter should be Nat, second Host-only.
Start cmd.exe and run ipconfig /all. You should see lines:
Ethernet adapter VirtualBox Host-Only Network:
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IPv4 Address. . . . . . . . . . . : 192.168.59.1
Second adapter in guest should also be in 192.168.59.*.
S...
How does the compilation/linking process work?
...or whatever that form the instructions and literals and any data. We just start allocating memory and building the values that will create the program as we go, and note down anyplace we need to go back and fix an address. In that place we put a dummy to just pad the location so we can continue to...
What is TypeScript and why would I use it in place of JavaScript? [closed]
...erset of JavaScript. You can almost rename your .js files to .ts files and start using TypeScript (see "JavaScript interoperability" below). TypeScript files are compiled to readable JavaScript, so that migration back is possible and understanding the compiled TypeScript is not hard at all. TypeScri...
Python Regex instantly replace groups
...he groups. Groups are counted the same as by the group(...) function, i.e. starting from 1, from left to right, by opening parentheses.
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how to create a Java Date object of midnight today and midnight tomorrow?
...ght is deprecated, so use this:
DateTime today = new DateTime().withTimeAtStartOfDay();
DateTime tomorrow = today.plusDays(1).withTimeAtStartOfDay();
Pass a time zone if you don't want the JVM’s current default time zone.
DateTimeZone timeZone = DateTimeZone.forID("America/Montreal");
DateTime...
Programmer-friendly search engine? [closed]
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Cannot help you, but can at least provide you with a vision (maybe same startup will go an realize it).
Assieme is the research prototype of a dedicated search engines for software documentation. The idea is that searching software documentation is a specialized task, that needs specialized sear...
Difference between LoadFile and LoadFrom with .NET Assemblies?
...or those who really,
really want exactly what is requested.
(*However, starting in v2, policy will
be applied to both LoadFrom() and
LoadFile(), so LoadFile() won't
necessarily be exactly what was
requested. Also, starting in v2, if an
assembly with its identity is in the
GAC, the GA...
get NSDate today, yesterday, this Week, last Week, this Month, last Month… variables
...WILL suffer some very nasty and hard to debug issues when your date stamps start mismatching.
– Kendall Helmstetter Gelner
Dec 11 '09 at 21:22
11
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remove None value from a list without removing the 0 value
This was my source I started with.
10 Answers
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