大约有 42,000 项符合查询结果(耗时:0.0283秒) [XML]

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List of tables, db schema, dump etc using the Python sqlite3 API

... You can fetch the list of tables and schemata by querying the SQLITE_MASTER table: sqlite> .tab job snmptarget t1 t2 t3 sqlite> select name from sqlite_master where type = 'table'; job t1 t2 s...
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mysql_fetch_array()/mysql_fetch_assoc()/mysql_fetch_row()/mysql_num_rows etc… expects parameter 1 to

...been removed in php version 7. Check $result before passing it to mysql_fetch_array. You'll find that it's false because the query failed. See the mysql_query documentation for possible return values and suggestions for how to deal with them. $username = mysql_real_escape_string($_POST['username'...
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What's the difference between a file descriptor and file pointer?

...ngst other things such as end-of-file and error indicator, stream position etc. So using fopen() gives you a certain amount of abstraction compared to open(). In general you should be using fopen() since that is more portable and you can use all the other standard C functions that uses the FILE str...
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How to write multiple line string using Bash with variables?

...ng. Correct would be: #!/bin/bash kernel="2.6.39" distro="xyz" cat >/etc/myconfig.conf <<EOL line 1, ${kernel} line 2, line 3, ${distro} line 4 line ... EOL cat /etc/myconfig.conf This construction is referred to as a Here Document and can be found in the Bash man pages under man --...
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Where is Erlang used and why? [closed]

...ommon applications for Erlang as been covered (CouchDb, ejabberd, RabbitMQ etc) but I would like to contribute the following. The reason why it is used in these applications comes from the core strength of Erlang: managing application availability. Erlang was built from ground up for the telco env...
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Things possible in IntelliJ that aren't possible in Eclipse?

...ess { String getStreetAddress(); String getZipCode(); Country getCountry(); } interface Person { String getName(); Address getAddress(); int getAge(); } //--- Person p; Country c = p.<CTRL-SHIFT-SPACE> and it will silently autocomplete it to Country c = p.getAddress...
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C: Run a System Command and Get Output? [duplicate]

... want the "popen" function. Here's an example of running the command "ls /etc" and outputing to the console. #include <stdio.h> #include <stdlib.h> int main( int argc, char *argv[] ) { FILE *fp; char path[1035]; /* Open the command for reading. */ fp = popen("/bin/ls /etc/"...
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PHPMyAdmin Default login password [closed]

...y, coming to the solution, this is what I was required to do: su - gedit /etc/phpMyAdmin/config.inc.php if not found... try phpmyadmin - all small caps. gedit /etc/phpmyadmin/config.inc.php Locate $cfg['Servers'][$i]['AllowNoPassword'] and set it to: $cfg['Servers'][$i]['AllowNoPassword']...
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Android: Want to set custom fonts for whole application not runtime

...out anything (you could add another one for typefaceStyle -- bold, italic, etc.) but now let's see how to use it: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:custom="http://schemas.android.com/apk/res/com.you...
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Can you run GUI applications in a Docker container?

... echo "deb http://archive.ubuntu.com/ubuntu precise main universe" > /etc/apt/sources.list RUN apt-get update # Install vnc, xvfb in order to create a 'fake' display and firefox RUN apt-get install -y x11vnc xvfb firefox RUN mkdir ~/.vnc # Setup a password RUN x11vnc -storepass...