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SQL Server dynamic PIVOT query?

... @cols AS NVARCHAR(MAX), @query AS NVARCHAR(MAX); SET @cols = STUFF((SELECT distinct ',' + QUOTENAME(c.category) FROM temp c FOR XML PATH(''), TYPE ).value('.', 'NVARCHAR(MAX)') ,1,1,'') set @query = 'SELECT date, ' + @cols + ' from (...
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resizes wrong; appears to have unremovable `min-width: min-content`

I have a <select> where one of its <option> ’s text values is very long. I want the <select> to resize so it is never wider than its parent, even if it has to cut off its displayed text. max-width: 100% should do that. ...
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How do you check what version of SQL Server for a database using TSQL?

... Try SELECT @@VERSION or for SQL Server 2000 and above the following is easier to parse :) SELECT SERVERPROPERTY('productversion') , SERVERPROPERTY('productlevel') , SERVERPROPERTY('edition') From: http://support....
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SSH to Elastic Beanstalk instance

... region. Configure Security Group In the AWS console, open the EC2 tab. Select the relevant region and click on Security Group. You should have an elasticbeanstalk-default security group if you have launched an Elastic Beanstalk instance in that region. Edit the security group to add a rule for S...
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DISTINCT for only one column

... If you are using SQL Server 2005 or above use this: SELECT * FROM ( SELECT ID, Email, ProductName, ProductModel, ROW_NUMBER() OVER(PARTITION BY Email ORDER BY ...
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MySQL: Fastest way to count number of rows

...s. The solution is SQL_CALC_FOUND_ROWS. This is usually used when you are selecting rows but still need to know the total row count (for example, for paging). When you select data rows, just append the SQL_CALC_FOUND_ROWS keyword after SELECT: SELECT SQL_CALC_FOUND_ROWS [needed fields or *] FROM t...
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How do I change an HTML selected option using JavaScript?

... document.getElementById('personlist').getElementsByTagName('option')[11].selected = 'selected' to document.getElementById('personlist').value=Person_ID; share | improve this answer | ...
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Include headers when using SELECT INTO OUTFILE?

... You'd have to hard code those headers yourself. Something like: SELECT 'ColName1', 'ColName2', 'ColName3' UNION ALL SELECT ColName1, ColName2, ColName3 FROM YourTable INTO OUTFILE '/path/outfile' share ...
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How to concatenate text from multiple rows into a single text string in SQL server?

...y, John, Sam 2 Alaina, Edward I used the following T-SQL: SELECT Main.SubjectID, LEFT(Main.Students,Len(Main.Students)-1) As "Students" FROM ( SELECT DISTINCT ST2.SubjectID, ( SELECT ST1.StudentName + ',' AS [text()] FR...
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What are the differences between poll and select?

I am referring to the POSIX standard select and poll system C API calls. 3 Answers ...