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sqlalchemy: how to join several tables by one query?
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Ryabchenko Alexander
3,22711 gold badge1919 silver badges4545 bronze badges
answered May 18 '11 at 13:04
Abdul KaderAbdul Kader...
How to force 'cp' to overwrite directory instead of creating another one inside?
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125
You can do this using -T option in cp.
See Man page for cp.
-T, --no-target-directory
tre...
Is there a CSS selector by class prefix?
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It's not doable with CSS2.1, but it is possible with CSS3 attribute substring-matching selectors (which are supported in IE7+):
div[class^="status-"], div[class*=" status-"]
Notice the space character in the second attribute selector. This picks up...
Insert/Update Many to Many Entity Framework . How do I do it?
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141
In terms of entities (or objects) you have a Class object which has a collection of Students a...
How do I create directory if it doesn't exist to create a file?
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edited Nov 20 '18 at 9:59
BKSpurgeon
21.7k88 gold badges7777 silver badges6363 bronze badges
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What is the right way to check for a null string in Objective-C?
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edited Nov 5 '14 at 3:14
answered Jun 10 '09 at 7:45
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IntelliJ Split Window Navigation
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102
Ctrl+Tab and Ctrl+Shift+Tab for Window | Goto Next Splitter and Goto Previous Splitter. Howeve...
Use images instead of radio buttons
...ing the <i> element and the :after pseudo:
body{color:#444;font:100%/1.4 sans-serif;}
/* CUSTOM RADIO & CHECKBOXES
http://stackoverflow.com/a/17541916/383904 */
.rad,
.ckb{
cursor: pointer;
user-select: none;
-webkit-user-select: none;
-webkit-touch-callout: none;
}
.rad ...
SQL UPDATE all values in a field with appended string CONCAT not working
...; select * from t;
+------+-------+
| id | data |
+------+-------+
| 1 | max |
| 2 | linda |
| 3 | sam |
| 4 | henry |
+------+-------+
4 rows in set (0.02 sec)
mysql> update t set data=concat(data, 'a');
Query OK, 4 rows affected (0.01 sec)
Rows matched: 4 Changed: 4 Warnin...