I need to execute SQL from MySQL command line with option "--execute=statement, -e statement" but I am afraid my SQL statement is too long which does not fit in option.
If my SQL statement exceeds, how can I set max number of characters of "execute" option?
The sql statement will only execute after the ; sign so you can wrap the statement to the next line.....there is no limit per se
if the statement is too large save in a file and save it as a .sql the give the path to the file on the console
mysql -e "source /path-to-backup/backup-file.sql" db_name
Related
Taking too much time when I run sql batch file through command line (e.g., mysql -h127.0.0.1 -uroot -proot testing_besql < D:/Apache2/htdocs/db.sql my batch file taking around 2 minutes 30 seconds) than when executing (importing) using SQL Yog (Only taking around 30 seconds). Any way to improve command line speed.
At the top of the sql file add
SET autocommit=0;
And at the bottom of the file add
COMMIT;
This will bring in the speed of SQL yog db import to the import through command line
i am trying to rewrite a script that is written in c-shell script to that uses sql plus command to get information from an oracle database but i am replacing it with mysql and i would like to replace all sqlplus syntax with mysql syntax. I am asking all the c-shell gurus to explain to me what this command means
set SQLPLUS=${ORACLE_HOME}/bin/sqlplus
set REPORT=${MYBD_HOME}/Scripts/report.sql
so somewhere along the line i invoke the sql plus command using the follwing
${SQLPLUS} ${MYDBUSER} # &{REPORT}
i am able to say i undertand what the right hand values mean ({ORACLE_HOME}/bin/sqlplus) is the path to where my sqplus command is located and thus i need it to invoke the command and the {REPORT=$(MYBD_HOME}/Scripts.report.sql) is the path where my sql script that is to be ran by invoking the sqplus command resides correct?
what i dont understand is what the set command is initializing this to. is SQLPLUS a variable so i dont have to type the path when i try to put it in my .csh script?
If so then all i need to do to run this script on a mysql database is simply set the SQLPLUS(problably change it to MYSQL) to point to the path where my msql exec is right
set MYSQL=${MYSQL_HOME}/bin/mysql
then just invoke mysql and run the sql statement
${MYSQL}${MYDBUSER}#${REPORT}
is this what i need to do ro tun the same .tsch script to get data from a mysql table?
You'll need something like this:
${MYSQL} -u $username -p$password -D $database < ${REPORT}
(The username and password are passed in differently to the mysql executable than they are passed to SQLPlus. You'll need to parse out the username and the password from ${MYDBUSER}. Likely, that contains a string such as "scott/tiger". The equivalent on the mysql command line client would be "-u scott -ptiger -D scott".
That # (at sign) is a SQLPlus thing; it tells SQLPLus to read input from the specified filename. The equivalent in mysql would be the source command, e.g.
${MYSQL} -u $username -p$password <_EOD!
use $database
source ${REPORT}
_EOD!
Also, your report.sql file likely includes spool and other SQLPLus specific commands. The mysql command line client is NOT ANYWHERE near as powerful a reporting tool as SQLPlus is.
Addendum:
Q: what exactly does the spool do?
The SQLPlus spool command directs output to a file. It's frequently used to create a log file from a SQLPLus session, and is also useful for creating report files.
set trimspool on
spool /tmp/file.lis
select 'foo' as foo from dual;
spool off
Q: Why can't i set the user name and passowrd to a variable and use that?
You could set a variable, the end result of the command line sent to the OS would be the same.
set MYDBUSER="-u username -ppassword -D database"
${MYSQL} ${MYDBUSER} <${REPORT}
Q:Seems like mysql is more verbose than sqlplus.
The mysql command line client takes unix-style options. These are equivalent:
mysql -u myusername -pmypassword -D mydatabase
mysql --user=myusername --password=mypassword --database=mydatabase
I have a sql file which contains over a million insert statements. The official tool for MySQL administration is not able to open it because of its size. Is it possible to insert records using a BASH script?
I tried this so far but it doesn't work.
while read line
do
mysql -u root --password=root << eof
use dip;
$line;
eof
done < $1
mysql -u root --password=root <mysqlfile.sql
Try this:
while read line
do
mysql -u root --password=root -c "$line"
done < $1
Notes:
If the sql contains double quotes ("), yo'll have to escape them
If the SQL statements go over multiple lines, you'll have to figure that out
The advantage of this method is each line gets its own transaction, whereas if you fire the whole file in, it could blow the logs being such a large change set
I have an SQL file with 30,000 UPDATE lines. When I upload it through phpmyadmin it freezes at a certain point and doesn't update everything.
Is there a way to execute all 30,000 lines, without problems, all at once? or do I have to go through and manually execute 200 lines at a time?
Line Example:
UPDATE `table` SET `value1`='Some text', `value2`=0 `value3`=1 WHERE id=500;
^ I have 30,000 lines like that.
PHPMyAdmin's query parsing is slow. It's much better to log into server via SSH and execute the command using mysql client:
$ mysql -uUsername -pPassword DatabaseName < script.sql
If you don't have SSH access, you can upload the sql script (via FTP, for example) and write a small PHP script that calls the command using system, exec or similar PHP function:
<?php
system('mysql -uUsername -pPassword DatabaseName < script.sql');
Then invoke the script via browser.
Make sure you use full paths to mysql (/usr/bin/mysql usually) and your script file.
If you use non-system character set, make sure you add the default_character_set option as well.
I am trying to create a batch script that would connect to a mySQL database and issue a delete command:
#echo off
echo Resetting all assessments...
mysql -hlocalhost -urdfdev -p%1 rdf_feedback
delete from competency_question_answer;
I will run this script providing the password as a command-line argument, but all this script does is, connects to the database, and the mysql> prompt will be shown. After I exit from mysql, the rest of the batch commands get to execute (and fail, no surprise).
How can I pass the SQL commands from the batch script to the mysql console? Is this even possible?
You need to use command line tools. I don't know if there exists any for MySQL but for SQL there is SQLCMD and for Oracle there is OSQL.
What you can also do is something like this.
mysql -uuser -ppass < foo.sql
Where foo.sql is the commands you want to execute.
You may need to connect multiple times:
#echo off
echo Resetting all assessments...
mysql -hlocalhost -urdfdev -p%1 rdf_feedback -e delete from competency_question_answer;
Alternatively, you should be able to put all your commands in a separate file such as input.sql and use:
mysql -hlocalhost -urdfdev -p%1 rdf_feedback <input.sql
echo "delete from competency_question_answer;" | mysql -hlocalhost -ur... etc.
Putting multiple sets of commands into .sql batch files works best, and you can execute multiples of these in the .bat file.