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jQuery set radio button

... Your selector looks for the descendant of a input:radio[name=cols] element that has the id of newcol (well the value of that variable). Try this instead (since you're selecting by ID anyway): $('#' + newcol).prop('checked',true)...
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Can I change the root EBS device of my amazon EC2 instance?

... I don't have enough rep to add a comment to the selected answer, but I do want to point out that for me, /dev/sda1 did not work (did not attach as root), but using /dev/xvda worked (attached as root). The instance is one of the newer t2.micro ones using HVM. ...
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libxml/tree.h no such file or directory

...n two ways: 1. Target settings Click on your target (not your project) and select Build Phases. Click on the reveal triangle titled Link Binary With Libraries. Click on the + to add a library. Scroll to the bottom of the list and select libxml2.dylib. That adds the libxml2 library to your project. 2...
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How to remove a column from an existing table?

...lete a column from an unexisting table ;-) BEGIN TRANSACTION IF exists (SELECT * FROM sys.columns c INNER JOIN sys.objects t ON (c.[object_id] = t.[object_id]) WHERE t.[object_id] = OBJECT_ID(N'[dbo].[MyTable]') AND c.[name] = 'ColumnName') BEGIN TRY ALTER TABLE [dbo].[MyTable] DRO...
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How to pull a random record using Django's ORM?

...on't know about other databases). order_by('?')[:N] will be translated to SELECT ... FROM ... WHERE ... ORDER BY RAND() LIMIT N query. It means that for every row in table the RAND() function will be executed, then the whole table will be sorted according to value of this function and then first N...
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How can I clone an SQL Server database on the same server in SQL Server 2008 Express?

...is optional. Click to clone database and open restore dialog (see image) Select Device and add the backup file from step 3. Change destination to test database Change location of database files, it must be different from the original. You can type directly into text box, just add postfix. (NOTE:...
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Get the last inserted row ID (with SQL statement) [duplicate]

...alue using: INSERT INTO dbo.YourTable(columns....) VALUES(..........) SELECT SCOPE_IDENTITY() This works as long as you haven't inserted another row - it just returns the last IDENTITY value handed out in this scope here. There are at least two more options - @@IDENTITY and IDENT_CURRENT - r...
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What is a good reason to use SQL views?

...one extra column active. If your system(s) have gazillion queries that do SELECT whatever FROM T_OLD WHERE whatever, you have two choices for the roll-out: 1) Cold Turkey - Change the DB, and at the same time, change, test and release numerous pieces of code which contained said query. VERY hard t...
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“Incorrect string value” when trying to insert UTF-8 into MySQL via JDBC?

... The second approach should be used selectively, i. e. never be applied to SELECT queries, as set names utf8mb4; select ... from ... will never produce a ResultSet and instead result in a ResultSet is from UPDATE. No Data. error. – Bass ...
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Installing Java 7 on Ubuntu

...ther JDK versions installed sudo update-alternatives --config java then select the Java 7 version. share | improve this answer | follow | ...