大约有 35,000 项符合查询结果（耗时：0.0421秒） [XML]
How to create a backup of a single table in a postgres database?
... there a way to create a backup of a single table within a database using postgres? And how? Does this also work with the pg_dump command?
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How to create a file in memory for user to download, but not through server?
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This is not a cross browser solution but definitely something worth looking at. For example IE limits support to data uri. IE 8 limits size to 32KB and IE 7 and lower doesn't support at all.
– Darin Dimitrov
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filtering NSArray into a new NSArray in Objective-C
... answered Sep 21 '08 at 5:43
lajoslajos
24.4k1919 gold badges6161 silver badges7474 bronze badges
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Extract public/private key from PKCS12 file for later use in SSH-PK-Authentication
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This is possible with a bit of format conversion.
To extract the private key in a format openssh can use:
openssl pkcs12 -in pkcs12.pfx -nocerts -nodes | openssl rsa > id_rsa
To convert the private key to a public key:
openssl...
Best way to synchronize local HTML5 DB (WebSQL Storage, SQLite) with a server (2 way sync) [closed]
...er project from QuickConnect is a native SQLite synch (in Objective C for iOS or Mac OS and in Java for Android) :
http://www.quickconnectfamily.org/qcdbsync/
(I think it store also the history of all the SQL requests)
And i just found another promising JS library : persistenceJS
https://githu...
Asp.NET Web API - 405 - HTTP verb used to access this page is not allowed - how to set handler mappi
...ion that doesn't require you to uninstall WebDav.
– Joseph Woodward
Sep 17 '13 at 10:52
1
@B.Clay...
How to completely remove node.js from Windows
...rs when trying to add modules through npm. I've seen solutions to this for OSX and Linux, but couldn't find anything for Windows. I'm running Windows 7 64-bit.
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How can I find out the total physical memory (RAM) of my linux box suitable to be parsed by a shell
... It gives me this error # dmidecode 3.0 /sys/firmware/dmi/tables/smbios_entry_point: Permission denied Scanning /dev/mem for entry point. /dev/mem: Permission denied
– VVB
Sep 13 '17 at 12:57
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How to replace strings containing slashes with sed?
...nce you don't always know what characters are in a string to be able to choose something different. eg, this: echo / | sed s/\//a/g does not work: sed: -e expression #1, char 5: unknown option to `s'
– Max Waterman
Sep 3 '19 at 3:42
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How do you round a floating point number in Perl?
...iest
route.
printf("%.3f", 3.1415926535); # prints 3.142
The POSIX module (part of the standard Perl distribution) implements
ceil(), floor(), and a number of other mathematical and trigonometric
functions.
use POSIX;
$ceil = ceil(3.5); # 4
$floor ...