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How do I check if an index exists on a table field in MySQL?

...TABLES as x JOIN information_schema.INNODB_SYS_INDEXES as y on x.TABLE_ID = y.TABLE_ID WHERE x.name = 'your_schema' and y.name = 'your_column') d on concat(a.table_schema, '/', a.table_name, '/', a.column_name) = d.full_path_schema where a.table_schema = 'your_schema' and a.column_na...
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Is there a predefined enumeration for Month in the .NET library?

... I agree about the culture specific issue, but why then did microsoft create DayOfWeek, that's culture-specific. Funny, huh? – Mark Rogers May 22 '09 at 19:33 12 ...
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Fade In Fade Out Android Animation in Java

...r each, could you use something like this ? I tried but it's not really fluid. The aim was to simulate for example a bulb that would not work properly, and twinkle. – Chayy Aug 12 '11 at 16:36 ...
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Xcode is not currently available from the Software Update server

... This worked for me. I signed in with my Apple ID. I'm not 100% sure I even have an active Apple Developer license, but I did in the past. You may need an existing developer account to get in, but the link and the installer did work for me. – Jim Ste...
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CSS horizontal centering of a fixed div?

...creen, even if the page is scrolled it should always stay CENTERED in the middle of the screen! 8 Answers ...
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Store boolean value in SQLite

...ase specific values e.g. CREATE TABLE IF NOT EXISTS "boolean_test" ( "id" INTEGER PRIMARY KEY AUTOINCREMENT , "boolean" TEXT NOT NULL CHECK( typeof("boolean") = "text" AND "boolean" IN ("TRUE","FALSE") ) ); INSERT INTO "boolean_test" ("boolean") VALUES ("TRUE"...
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Secure random token in Node.js

... 0. Using nanoid third party library [NEW!] A tiny, secure, URL-friendly, unique string ID generator for JavaScript https://github.com/ai/nanoid import { nanoid } from "nanoid"; const id = nanoid(48); 1. Base 64 Encoding with UR...
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How do I scale a stubborn SVG embedded with the tag?

I have some SVG files that specifies width and height as well as viewbox like this: 9 Answers ...
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Is it possible to hide the cursor in a webpage using CSS or Javascript?

I want to hide the cursor when showing a webpage that is meant to display information in a building hall. It doesn't have to be interactive at all. I tried with the cursor property and a transparent cursor image but I didn't make it work. ...
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How to grey out a button?

... You have to provide 3 or 4 states in your btn_defaut.xml as a selector. Pressed state Default state Focus state Enabled state (Disable state with false indication; see comments) You will provide effect and background for the states acco...