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How to create a new (and empty!) “root” branch?
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230
Use the --orphan when creating the branch:
git checkout --orphan YourBranchName
This will cre...
How can I convert a string to upper- or lower-case with XSLT?
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In XSLT 1.0 the upper-case() and lower-case() functions are not available.
If you're using a 1.0 stylesheet the common method of case conversion is translate():
<xsl:variable name="lowercase" select="'abcdefghijklmnopqrstuvwxyz'"...
How to rotate the background image in the container?
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#myelement:before
{
content: "";
position: absolute;
width: 200%;
height: 200%;
top: -50%;
left: -50%;
z-index: -1;
background: url(background.png) 0 0 repeat;
-webkit-transform: rotate(30deg);
-moz-transform: rotate(30deg);
-ms-transform: rotate(30deg);...
How to exit if a command failed?
...&.
cmd1 && cmd2
will run cmd2 when cmd1 succeeds(exit value 0). Where as
cmd1 || cmd2
will run cmd2 when cmd1 fails(exit value non-zero).
Using ( ) makes the command inside them run in a sub-shell and calling a exit from there causes you to exit the sub-shell and not your original...
SQL order string as number
...h forces a conversion to number
select col from yourtable
order by col + 0
BTW MySQL converts strings from left to right. Examples:
string value | integer value after conversion
--------------+--------------------------------
'1' | 1
'ABC' | 0 /* the string does not cont...
Regex for numbers only
...$" if you need to match more than one digit.
Note that "\d" will match [0-9] and other digit characters like the Eastern Arabic numerals ٠١٢٣٤٥٦٧٨٩. Use "^[0-9]+$" to restrict matches to just the Arabic numerals 0 - 9.
If you need to include any numeric representations other than ju...
Delete a closed pull request from GitHub
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edited May 27 at 16:07
Community♦
111 silver badge
answered Aug 19 '13 at 16:16
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alternatives to REPLACE on a text or ntext datatype
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IF your data won't overflow 4000 characters AND you're on SQL Server 2000 or compatibility level of 8 or SQL Server 2000:
UPDATE [CMS_DB_test].[dbo].[cms_HtmlText]
SET Content = CAST(REPLACE(CAST(Content as NVarchar(4000)),'ABC','DEF') AS NText)
WHERE ...
Postgres: Distinct but only for one column
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Jun 4 '13 at 12:36
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Why can I create a class named “var”?
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101
var is not a keyword according to this list.
it is a contextual keyword, so from the context t...