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What is the string concatenation operator in Oracle?

... It is ||, for example: select 'Mr ' || ename from emp; The only "interesting" feature I can think of is that 'x' || null returns 'x', not null as you might perhaps expect. ...
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byte[] to hex string [duplicate]

...); } static string LinqConcat(byte[] data) { return string.Concat(data.Select(b => b.ToString("X2")).ToArray()); } static string LinqJoin(byte[] data) { return string.Join("", data.Select( bin => bin.ToString("X2") ).ToArray()); } static string LinqAgg(b...
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Errors: “INSERT EXEC statement cannot be nested.” and “Cannot use the ROLLBACK statement within an I

...our stored procedure data into it EXAMPLE: INSERT INTO #YOUR_TEMP_TABLE SELECT * FROM OPENROWSET ('SQLOLEDB','Server=(local);TRUSTED_CONNECTION=YES;','set fmtonly off EXEC [ServerName].dbo.[StoredProcedureName] 1,2,3') Note: You MUST use 'set fmtonly off', AND you CANNOT add dynamic sql to this...
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JUnit 4 Test Suites

...lipse: In the 'Package Explorer' view of the eclipse 'Java' perspective, select your unit test(s) in their package, inside the eclipse java project. Right-click on any one of the selected tests. In the pop-up menu, select New, Other… Open the ‘Java’ folder, then open the ‘JUnit’ folder...
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How to edit data in result grid in SQL Server Management Studio

... You can do something similar to what you want. Right click on a table and select "edit top 200 rows" (if you are on SQL Server 2008) or "open table" in SQL Server 2005. Once you get there, there is a button on the top that says "SQL"; when you click on it, it lets you write an SQL statement and you...
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how to convert a string to date in mysql?

I have a string column which acts as a date and I want to select it as a date . 5 Answers ...
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How do I compare two files using Eclipse? Is there any option provided by Eclipse?

... To compare two files in Eclipse, first select them in the Project Explorer / Package Explorer / Navigator with control-click. Now right-click on one of the files, and the following context menu will appear. Select Compare With / Each Other. ...
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iPhone app signing: A valid signing identity matching this profile could not be found in your keycha

... Open Xcode. Click WINDOW > ORGANIZER. Then click the Devices tab and select "Provisioning Profiles" on the left. That should bring up your provisioning profiles. Highlight one by one (if more than 1), right click and delete profile. Yes, just do it! Delete them all! (I kept making a new one a...
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How make Eclipse/EGit recognize existing repository information after update?

...ositories" dialogue, under Search criteria, enter the workspace directory, select "Look for nested repositores", and hit Search: Select the repositories you want to add and click OK "Share" each of the projects again using "use or create repository" Open you existing project in Eclipse's Projec...
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View HTTP headers in Google Chrome?

...you don't see any resources - look at tabs area (All | XHR JS and etc) and select All – Zanshin13 Jan 12 '17 at 10:05  |  show 4 more comments...