大约有 5,887 项符合查询结果（耗时：0.0228秒） [XML]
What's the difference between “ ” and “ ”?
...least (as far as I remember, IE7 has the same issue), if you have an empty table element, it will not apply styling, for example borders, to the element, if there is no content, or only white space. So the following will not be rendered with borders:
<td></td>
<td> <td>
Wh...
Create a .csv file with values from a Python list
...mns if each element is a list as well. This is pretty handy for outputting tables.
– whatnick
Oct 7 '14 at 5:22
6
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How to change a PG column to NULLABLE TRUE?
...
From the fine manual:
ALTER TABLE mytable ALTER COLUMN mycolumn DROP NOT NULL;
There's no need to specify the type when you're just changing the nullability.
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Styling HTML email for Gmail
...e block, like so:
<!--[if mso]>
<style type="text/css">
body, table, td, .mobile-text {
font-family: Arial, sans-serif !important;
}
</style>
<xml>
<o:OfficeDocumentSettings>
<o:AllowPNG/>
<o:PixelsPerInch>96</o:PixelsPerInch>
</o:Offic...
Exit single-user mode
... the utility in msdb.dbo.usp_who2. It saves the results of sp_who2 into a table in tempdb under your user id, filter by the database name. Post an image of the error to help us more. Good luck.
– CRAFTY DBA
Sep 23 '13 at 18:53
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'innerText' works in IE, but not in Firefox
...is specced to do the exact same work as the loop and then I remembered...: tables in (legacy-)IE... ericvasilik.com/2006/07/code-karma.html Might I suggest adding a short description of the 'hidden' and almost never documented 'side-effect' of createTextNode replacing amp lt and gt to their respec...
How to check the version before installing a package using apt-get?
...-server
redis-server:
Installed: (none)
Candidate: 2:2.8.4-2
Version table:
2:2.8.4-2 0
500 http://us.archive.ubuntu.com/ubuntu/ trusty/universe amd64 Packages
apt-get install -s <package-name>
$ apt-get install -s redis-server
NOTE: This is only a simulation!
apt-g...
Can't subtract offset-naive and offset-aware datetimes
...imezone aware timestamptz field in PostgreSQL. When I pull data from the table, I then want to subtract the time right now so I can get it's age.
...
Store pictures as files or in the database for a web app?
...ed images (and all kinds of binary documents) as image columns in database tables.
The advantage of having files stored in the database is obviously that you do not end up with unreferenced files on the harddisk if a record is deleted, since synchronization between database (= meta data) and harddi...
Yellow fade effect with JQuery
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I love this solution. Works great on table rows.
– Perry Tew
Dec 4 '12 at 19:29
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