Skip to main content

How do you connect remote MySQL in R?

Connecting to MySQL is made very easy with the RMySQL package. To connect to a MySQL database simply install the package and load the library.

install.packages("RMySQL")
library(RMySQL)

Connecting to MySQL:
Once the RMySQL library is installed create a database connection object.

You need to create a user on the remote MySQL and GRANT ALL PRIVILEGES ON to that database. And in place of host put remote machine IP.


mydb = dbConnect(MySQL(), user='user', password='password', dbname='database_name', host='host')

Comments

Popular posts from this blog

Code for Mail in PHP

PHP mail function and mail configuration in  XAMPP  and sending mail is done from sendmail through localhost. I hope it will help you. mail() function <? php $to = 'dubeynitish22@hotmail.com' ; $subject = 'Test' ; $message = 'Hello' ; $headers = 'From: webmaster@example.com' . "\r\n" . 'Reply-To: webmaster@example.com' . "\r\n" . 'X-Mailer: PHP/' . phpversion ();   if (! mail ( $to , $subject , $message , $headers )){ echo "Error !!" ; } else { echo "Email Sent !!" ; } ?> 2. php.ini configuration (For SEND-MAIL) [ mail function ] ; For Win32 only . ; http : //php.net/smtp ; SMTP = localhost ; http : //php.net/smtp-port ; smtp_port = 25   ; For Win32 only . ; http : //php.net/sendmail-from ; sendmail_from = me@example . com   ; For Unix only . You may supply arguments as well ( default : "sendmail -t -i&q

PHP function for checking IMEI

Luhn algorithm for IMEI Check public function __checkIMEI($imei){ if(strlen($imei)==15){ $imeia=($imei[1]*2); if(strlen($imeia)==2){$imeia=str_split($imeia,1); $imeia=$imeia[0]+$imeia[1]; } $imeib=($imei[3]*2); if(strlen($imeib)==2){$imeib=str_split($imeib,1); $imeib=$imeib[0]+$imeib[1]; } $imeic=($imei[5]*2); if(strlen($imeic)==2){$imeic=str_split($imeic,1); $imeic=$imeic[0]+$imeic[1]; } $imeid=($imei[7]*2); if(strlen($imeid)==2){$imeid=str_split($imeid,1); $imeid=$imeid[0]+$imeid[1];} $imeie=($imei[9]*2); if(strlen($imeie)==2){$imeie=str_split($imeie,1); $imeie=$imeie[0]+$imeie[1]; } $imeif=($imei[11]*2); if(strlen($imeif)==2){$imeif=str_split($imeif,1); $imeif=$imeif[0]+$imeif[1]; } $imeig=($imei[13]*2); if(strlen($imeig)==2){$imeig=str_split($imeig,1); $imeig=$imeig[0]+$imeig[1]; } $IMEI= ($ime

PHP code for finding distinct elements common to all rows of a matrix in O(n) time complexity

<?php class Matrix{ /** •@param 2D array $matrix • •Prints distinct elements common to all rows of the matrix */ public static function getDistinctElementsCommonToAllRows($matrix){ // A hash map to store count of elements $hashmap = array(); $selectedHash = array(); $rows = count($matrix); $cols = count($matrix[0]); for ($i = 0; $i < $rows; $i++) { // Increment the count of first // element of the row if(array_key_exists($matrix[$i][0],$hashmap)){ $hashmap[$matrix[$i][0]] = $i+1; } // Starting from the second element // of the current row for ($j = 1; $j < $cols; $j++) { // If current ele