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Convert varchar to uniqueidentifier in SQL Server
...n defined as varchar(50) which stores uniqueidentifiers in the format 'a89b1acd95016ae6b9c8aabb07da2010' (no hyphens)
6 Ans...
Add hover text without javascript like we hover on a user's reputation
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edited Dec 12 '18 at 20:52
Shubham Chaudhary
32.4k88 gold badges6464 silver badges7676 bronze badges
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How to check if field is null or empty in MySQL?
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194
Either use
SELECT IF(field1 IS NULL or field1 = '', 'empty', field1) as field1
from tablenam...
SQLite table constraint - unique on multiple columns
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edited May 18 at 7:31
Martin Tournoij
22.1k1717 gold badges8585 silver badges116116 bronze badges
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Rails auto-assigning id that already exists
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edited Jun 17 '12 at 5:07
answered Jun 17 '12 at 4:43
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Citing the author of a blockquote using Markdown syntax
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189
Markdown has no dedicated citation syntax.
Your best bet is something like this:
> Quote ...
Timing a command's execution in PowerShell
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Yup.
Measure-Command { .\do_something.ps1 }
Note that one minor downside of Measure-Command is that you see no stdout output.
[Update, thanks to @JasonMArcher] You can fix that by piping the command output to some commandlet that writes to the host, e.g. Out-D...
Unix command to prepend text to a file
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16 Answers
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