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Full Discussion: bash mysql export to file
Top Forums Shell Programming and Scripting bash mysql export to file Post 302424522 by unclecameron on Tuesday 25th of May 2010 03:27:37 PM
Old 05-25-2010
bash mysql export to file

I'm trying to export a mysql query to a .csv file, right now I'm running a successful query like:
Code:
us_id=`mysql -u $USER_NAME --password=$PASSWORD -D "databasename" \
        -e "SELECT * \
        FROM databasename.table \
        WHERE somefield >0 AND otherfield ='$ctry' \
        ORDER BY users \
        DESC LIMIT 0,100";`

but I want to export it to a file, which I've tried by using:
Code:
us_id=`mysql -u $USER_NAME --password=$PASSWORD -D "databasename" \
        -e "SELECT * \
        FROM databasename.table \
        WHERE somefield >0 AND otherfield ='$ctry' \
        ORDER BY users \
        DESC LIMIT 0,100 TO OUTFILE 'somefile.csv' ";`

but then I get a db access denied error. I've also tried piping the output to sed ’s/\t/”,”/g;s/^/”/;s/$/”/;s/\n//g’, which also didn't work. If I could get TO OUTFILE to work I'd hopefully add this code to make the fields formatted:
Code:
FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"' ESCAPED BY ‘\\’ LINES TERMINATED BY '\n'

but I can't get the OUTFILE function to work. I could also use mysqldump I guess, but I don't know how to combine the query with a mysqldump. my output file exists and I chmod'ed it to 777 (for testing purposes).

---------- Post updated at 12:27 PM ---------- Previous update was at 10:10 AM ----------

got it, well really never got the TO OUTFILE working, but this worked:
Code:
echo "SELECT * \
        FROM somedb.sometable \
        WHERE field1 >0 AND field2 ='whatever' \
        ORDER BY field3 \
        DESC LIMIT 0,100 ;" > tmp
mysql -sN -u $USER_NAME --password=$PASSWORD -D "somedb" < tmp > temp_to_turn_into_csv_later.csv

now I have to parse the temp csv file into a csv using awk, there's probably an easier way though.
 

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MYSQLND_UH_SET_CONNECTION_PROXY(3)					 1					MYSQLND_UH_SET_CONNECTION_PROXY(3)

mysqlnd_uh_set_connection_proxy - Installs a proxy for mysqlnd connections

SYNOPSIS
bool mysqlnd_uh_set_connection_proxy (MysqlndUhConnection &$connection_proxy, [mysqli &$mysqli_connection]) DESCRIPTION
Installs a proxy object to hook mysqlnd's connection objects methods. Once installed, the proxy will be used for all MySQL connections opened with mysqli, mysql or PDO_MYSQL, assuming that the listed extensions are compiled to use the mysqlnd library. The function can be disabled with mysqlnd_uh.enable. If mysqlnd_uh.enable is set to FALSE the function will not install the proxy and always return TRUE. Additionally, an error of the type E_WARNING may be emitted. The error message may read like PHP Warning: mysqlnd_uh_set_connection_proxy(): (Mysqlnd User Handler) The plugin has been disabled by setting the configuration parameter mysqlnd_uh.enable = false. The proxy has not been installed [...]. PARAMETERS
o $connection_proxy - A proxy object of type MysqlndUhConnection. o $mysqli_connection - Object of type mysqli. If given, the proxy will be set for this particular connection only. RETURN VALUES
Returns TRUE on success. Otherwise, returns FALSE EXAMPLES
Example #1 mysqlnd_uh_set_connection_proxy(3) example <?php $mysqli = new mysqli("localhost", "root", "", "test"); $mysqli->query("SELECT 'No proxy installed, yet'"); class proxy extends MysqlndUhConnection { public function query($res, $query) { printf("%s(%s) ", __METHOD__, var_export(func_get_args(), true)); $ret = parent::query($res, $query); printf("%s returns %s ", __METHOD__, var_export($ret, true)); return $ret; } } mysqlnd_uh_set_connection_proxy(new proxy()); $mysqli->query("SELECT 'mysqlnd rocks!'"); $mysql = mysql_connect("localhost", "root", "", "test"); mysql_query("SELECT 'Ahoy Andrey!'", $mysql); $pdo = new PDO("mysql:host=localhost;dbname=test", "root", ""); $pdo->query("SELECT 'Moin Johannes!'"); ?> The above example will output: proxy::query(array ( 0 => NULL, 1 => 'SELECT 'mysqlnd rocks!'', )) proxy::query returns true proxy::query(array ( 0 => NULL, 1 => 'SELECT 'Ahoy Andrey!'', )) proxy::query returns true proxy::query(array ( 0 => NULL, 1 => 'SELECT 'Moin Johannes!'', )) proxy::query returns true SEE ALSO
mysqlnd_uh_set_statement_proxy(3), mysqlnd_uh.enable. PHP Documentation Group MYSQLND_UH_SET_CONNECTION_PROXY(3)
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