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How to get line count of a large file cheaply in Python?
..., and even better is doing this within a try-except block, where the and IOError exception is thrown if the file cannot be opened.
– BoltzmannBrain
May 20 '15 at 22:58
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libevent+protobuf轻松搭建tcpserver - C/C++ - 清泛网 - 专注C/C++及内核技术
...p_server(int port);
// client端socket流程:socket(),connect()，返回连接的sockfd
int create_io_channel(const char *ipaddr, int port);
2. 搭建TCP Server
下面以伪代码方式给出，错误处理省略
int main(int argc, char *argv[])
{
// 初始化
…
// event...
Must JDBC Resultsets and Statements be closed separately although the Connection is closed afterward
...he connection. If you don't close the ResultSet (cursor) it will throw an error like Maximum open cursors exceeded.
I think you may encounter with the same problem with other databases you use.
Here is tutorial Close ResultSet when finished:
Close ResultSet when finished
Close ResultSe...
Python - List of unique dictionaries
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Get the error TypeError: unorderable types: dict() > dict() when doing this in Python 3.5.
– Guillochon
Sep 16 '16 at 23:39
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Bash script to calculate time elapsed
... to execute the number in the ENDTIME as a command. You should also see an error like 1370306857: command not found. Instead use the arithmetic expansion:
echo "It takes $(($ENDTIME - $STARTTIME)) seconds to complete this task..."
You could also save the commands in a separate script, commands.sh...
Install shows error in console: INSTALL FAILED CONFLICTING PROVIDER
...use library in two project with the same provider name it could cause this error
– Mohammed Subhi Sheikh Quroush
Nov 19 '14 at 19:00
1
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How can I tell how many objects I've stored in an S3 bucket?
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Gives this error when I ran the above in cmd prompt - 'wc' is not recognized as an internal or external command, operable program or batch file. - I'm pretty new to this so can someone give a solution?
– Sandun
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MySQL: #126 - Incorrect key file for table
I got the following error from a MySQL query.
17 Answers
17
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AngularJS For Loop with Numbers & Ranges
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Interesting I don't see an error in the fiddle using Chrome. Which browser?
– Gloopy
May 14 '13 at 1:30
5
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PHP code to convert a MySQL query to CSV [closed]
...ELECT * FROM table_name";
$export = mysql_query ( $select ) or die ( "Sql error : " . mysql_error( ) );
$fields = mysql_num_fields ( $export );
for ( $i = 0; $i < $fields; $i++ )
{
$header .= mysql_field_name( $export , $i ) . "\t";
}
while( $row = mysql_fetch_row( $export ) )
{
$line...