Re: MyISAM vs InnoDB
Francis wrote: Question about MyISAM vs InnoDB ? What is the best to use, I have a large table contain around 10 millons of records. What is the best for me ? Use MyISAM or InnoDB ? Depends VERY much on your application. If any concurrency and/or durability is required then I would forget about MyISAM, as this is not ACID and integrity of the data is at risk. In fact, if the application is suitable for MyISAM and database could be embedded (runs on same machine as application) then I would probably consider SQLite as that is even faster. If concurrency and scaleability is required then I would go PostgreSQL rather tham MySQL, expecially if a large number of heavy users are on at the same time. For a web-based solution on a machine with a single processor/core then InnoDB is a strong contender. Eddy -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: MyISAM vs InnoDB
Francis wrote: Question about MyISAM vs InnoDB ? What is the best to use, I have a large table contain around 10 millons of records. What is the best for me ? Use MyISAM or InnoDB ? Depends VERY much on your application. If any concurrency and/or durability is required then I would forget about MyISAM, as this is not ACID and integrity of the data is at risk. In fact, if the application is suitable for MyISAM and database could be embedded (runs on same machine as application) then I would probably consider SQLite as that is even faster. If concurrency and scaleability is required then I would go PostgreSQL rather tham MySQL, expecially if a large number of heavy users are on at the same time. For a web-based solution on a machine with a single processor/core then InnoDB is a strong contender. Eddy -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: SUM in WHERE
Ahmad Al-Twaijiry wrote: Hi everyone snip SELECT * FROM tbl_name WHERE SUM(Total)=100 ORDER BY ID SELECT ID FROM tbl_name GROUP BY ID HAVING SUM(Total)=100 ORDER BY ID -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: ANNOUNCE: ShellSQL 0.7
Forgive me replying to my own post There is a bug in the MySQL engine of this suite (shmysql). This has been fixed in ShellSQL-0.7.1 at the below mentioned places. If you have downloaded 0.7 you should download 0.7.1 and re-install (only shmysql is effected here, all the other programs are the same). Thanks for your patience Eddy Edward Macnaghten wrote: Hi Announcing ShellSQL 0.7 to an unsuspecting world... ShellSQL is a utility to allow SQL to be intergrated easily into UNIX/LINUX shell scripts. The web page is at http://www.edlsystems.com/shellsql - and at sourceforge at http://sourceforge.net/projects/shellsql . Version 0.7 includes many bug fixes and tidy ups. A new utility to import a file into a table (or use it to update tables), more input/output formats (CSV, Tab delimited etc) and a new engine (freetds for MS-SQL/Sybase engines) - (The MySQL engine was one of the originals there). Enjoy Eddy Macnaghten -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: bash powered MySQL Queries
Forgive me for blowing my own trumpet here. The advantage with ShellSQL over this method is 1 - The output is not cluttered with headers, and a means exist to easily separate fields when there is more than one column or row in the query. 2 - The connection is persistant, whereas running mysql for each command will open and close a connection with all the overhead that comes with that. ShellSQL also enables you to do transactions begin and commit at the beginning and end of the script. Eddy andy thomas wrote: On Sun, 30 Jan 2005, Andy wrote: Hi all I just wanted to know what would be the easiest way to retrieve simple data from a MySQL database from a bash script. I do this a lot - just construct the query and dump it into a file from within the script, eg: echo select * from widgets where colour = 'red'; /tmp/query Then pipe the query into the mysql command line client and the result is echoed to stdin: $RESULT=`mysql -u user -ppassword widget_sales /tmp/query` and the variable $RESULT contains the result of your query. Andy -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
ANNOUNCE: ShellSQL 0.7
Hi Announcing ShellSQL 0.7 to an unsuspecting world... ShellSQL is a utility to allow SQL to be intergrated easily into UNIX/LINUX shell scripts. The web page is at http://www.edlsystems.com/shellsql - and at sourceforge at http://sourceforge.net/projects/shellsql . Version 0.7 includes many bug fixes and tidy ups. A new utility to import a file into a table (or use it to update tables), more input/output formats (CSV, Tab delimited etc) and a new engine (freetds for MS-SQL/Sybase engines) - (The MySQL engine was one of the originals there). Enjoy Eddy Macnaghten -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: bash powered MySQL Queries
Funny you should mention that May I guide you to my recent announcment of ShellSQL 0.7 - web page at http://www.edlsystems.com/shellsql - a utility to do just as you want (I think) released under GPL. It must be good - I wrote it myself :-) Yours Eddy Andy wrote: Hi all I just wanted to know what would be the easiest way to retrieve simple data from a MySQL database from a bash script. With kind regards Andy -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
