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Unpivot with column name
I have a table StudentMarks with columns Name, Maths, Science, English .
Data is like
4 Answers
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How do you manage databases in development, test, and production?
...and have your CI server run those scripts on the database. Have a version table to keep track of the current database version, and only execute the scripts if they are for a newer version.
Use a migration solution. These solutions vary by language, but for .NET I use Migrator.NET. This allows you...
How to count instances of character in SQL Column
...LESCE(NULLIF(LEN(@StringToFind), 0), 1) --protect division from zero
FROM [Table To Search]
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SQL Server 2008: how do I grant privileges to a username?
I need to be able to establish an ODBC connection through SQL Server authentication.
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How to see full query from SHOW PROCESSLIST
...ck on the "Full texts" option ("← T →" on top left corner of a results table) to see untruncated results.
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Filter data.frame rows by a logical condition
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we can use data.table library
library(data.table)
expr <- data.table(expr)
expr[cell_type == "hesc"]
expr[cell_type %in% c("hesc","fibroblast")]
or filter using %like% operator for pattern matching
expr[cell_type %like% "hesc...
How to return only the Date from a SQL Server DateTime datatype
...PU time taken to perform all the pieces. If both queries are run against a table with millions of rows, the CPU time using DateDiff can be close to 1/3rd of the Convert CPU time!
To see execution plans for queries:
set showplan_text on
GO
Both DATEADD and DATEDIFF will execute a CONVERT_IMPLICI...
How can I horizontally align my divs?
... align just one div horizontally you could do this:
#MyDIV
{
display: table;
margin: 0 auto;
}
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Markdown `native` text alignment
...ky but if you're using GFM or some other MD syntax which supports building tables with pipes you can use the column alignment features:
|| <!-- empty table header -->
|:--:| <!-- table header/body separator with center formatting -->
| I'm centered! | <!-- cell gets column's alignmen...
How to align a div to the top of its parent but keeping its inline-block behaviour?
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Or you could just add some content to the div and use inline-table
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