mysqldump : MySQL's Standard Dump/Backup Utility

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Make MySQL dump from parts of each table

I need to export some data from different tables. I tried this query select * into outfile 'C:\Users\\User\\Desktop\\ololo.sql' from db.users where id % 2 = 1; After this query, the SQL file was ...
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SQL Error while restoring big database in Mysql

I have successfully created a MYSQL dump on RHEL 6 machine. The dump file is having 40 GB. When I try to restore it in an UBUNTU machine I got this error.
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231 views

mysqldump with automatically generated export name

When I do database dumps through MySQL WorkBench it picks a filename for me which is the current date (YYYMMDD). Now, I want to do this in a batch file since I want to make weekly dumps automatically ...
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2k views

mysqldump: Does --lock-tables=false work with MyISAM tables?

So, I have to check and come with a backup solution for a very busy mysql server (with tables over 5 GB). Due to resources constraints, they choose to set all tables with the MyISAM engine. Currently, ...
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66 views

MySQL backup breakes a table every time

I've a MySQL Server 5.1.58-1ubuntu1 installed on an Ubuntu 12.04 LTS. Every night we do a backup of all the databases with this script: rm -rf /var/backup/mysql/ * for i in $(echo 'SHOW DATABASES;' ...
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2k views

Verify mysqldump backup is corruption free

We've got a cron task backing up our Database using mysqldump - my main concern is corruption, short of manually importing and checking the backups each time whats the best way to check / verify a ...
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2k views

Extremely slow mySql restores

Please bear with me as I ask this question, which looks similar to questions already on DBA@SE. In the current configuration, we have a server (a Linux quadcore box with 4 GB RAM) - Both the Database ...
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47 views

mysqldump confusion

I must be missing something. The line I keep seeing everywhere for a consistent backup is: mysqldump --single-transaction --all-databases > alldbs.sql Yet the MySQL docs indicate --opt is on by ...
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295 views

XML dump of MySQL database don't include foreign key constraints. What can be the reason? sqldump(.sql) file list it

I am accessing schema information of databases in XML format. I am taking dump of the database in XML format using the command below. mysqldump --no-data --xml -u root -p bakerydb > bakerydb.xml ...
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833 views

Getting 0KB of size file while backup mysql database using mysql dump [closed]

I am using below code to backup my database using php script but I am getting 0KB size file. How can I backup my full database with all routines and functions? $dbhost = 'localhost'; $dbuser = ...
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271 views

Issues with mysqldump after upgrade 5.5 -> 5.6

A few months ago I updated a MySQL setup from 5.5 to 5.6. Since then I've been having problems with a script that I use to dump the various databases so that I can back them up. The script is a short ...
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1k views

How can I backup/dump MYSQL database with foreign key constraints?

I wanted to take the dump of the MySQL database with all the constraints on that database. The dump (.sql file) I am having right now don't show any reference key(foreign key) relationship. I am ...
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178 views

restore using mysqlbinlog failing

While doing restore from a MySQL binary log file, it is failing with the following error . mysqlbinlog mysql-bin.000036 | mysql -u root -p asdb ERROR 1032 (HY000) at line 48: Can't find record in ...
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mysqlbinlog failing with “ ERROR 1032 (HY000) at line 48: Can't find record in `` ” Error

I am facing some issue with PITR restore using mysqlbinlog . It is failing with the following error . # mysqlbinlog mysql-bin.000035 | mysql -u root -p db Enter password: ERROR 1032 (HY000) at ...
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75 views

Backup live MySQL database

I have a single MySQL database Server version: 5.5.35-cll MySQL Community Server (GPL) ENGINE is MyISAM I use 'mysqldump' to backup and restore the database. Size of the dumpfile is 3GB+ Once a ...
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350 views

Upgrading mysql myisam 5.1 to mysql 5.6: force innodb on restore?

I inherited a DB using myisam on mysql 5.1 because of the need for fulltext search. I now read that fulltext search is available on mysql 5.6 innodb. Doing this would solve a lot of problems, as long ...
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251 views

mysqldump dump file size

I have used mysql-administrator to back up my mediawiki and bugzilla database. Now there is an issue with charsets I can't fix. So I deciced to try mysqldump with -single-transaction --routines ...
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mysqldump issues with DreamHost

Background: I sought to rename a database on Dreamhost web hosting VPS account. I also wanted to rename a database user for the database to be created above. I followed the approached detailed at ...
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1k views

Incorrect definition of table mysql.event after migrating database to mariadb

I did a mysqldump to dump all databases into a .sql file, then installed a mariadb server. There are no errors after the installation. But after restoring the databases, I started to observe the ...
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129 views

Mysql replication dump without down time? empty sql file

I try to create dump as replication master data and use followed command to create dump, but sql file only contains paramters and there is no data and structure. The command is : mysqldump ...
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634 views

Which are the minimum privileges required to get a backup of a MySQL database schema?

Which are the minimum privileges required to get a backup of a MySQL database schema? I am interested only on the schema, not on the data. Are SELECT privileges required?
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318 views

Is there a Successor or an Alternative to mk-parallel-dump?

Just read about mk-parallel-dump in a possibly-outdated version of High Performance MySQL. Sounded great, but when I went to download it I found out that it's deprecated with no equivalent command in ...
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274 views

Why does importing a MySQL dump cause so many I/O?

I imported 100 SQL-format dump files. The total size was 20 GB. The resulting .ibd files after the import had a total size of 40 GB. mysqld.exe wrote 1.1 TB and read 120 GB on the disk. Why so many ...
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450 views

MySQLdump on specific db date

I'm new in here and i don't really know where to start but here is my concern. I need to backyp a MySQL DB running under windows once a week. For e.g every friday i need to backup and transfer to ...
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203 views

Backup everything except one record

I want to backup my database except t1 table's one record (where option='siteurl'). I'm trying mysqldump's --where command. mysqldump -u root --skip-extended-insert --where "option='siteurl'" ...
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Can't restore mysqldump database backup in Ubuntu 12.04

I'm trying to restore a database backup created using mysqldump. If I do: $ mysqldump -u ROOT -p DATABASE_NAME < DATABASE.SQL the database remains empty, even though I get some screen output ...
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965 views

Converting live MyISAM table to InnoDB

I have a table that tracks web traffic. The table is constantly written and read from. Since table is pretty big in size I have to make sure the application will not "freeze" in the process of ...
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mysqldump & upload to mysql speed impact due to SSD and innoDb?

I am testing an AWS Medium Instance with CentOS (AWS AMI) and comparing it with Hetzner's EX40-SSD (http://www.hetzner.de/hosting/produkte_rootserver/ex40ssd). Software setup on both is comparable( ...
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2k views

Restoring a single database from mysql enterprise full backup

I am having command to restore all databases from full dump taken by enterprise full backup .Can anyone help me how to restore single database from full dump .
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synchronizing local and server database

I am developing a billing system software. For this I have created a database it contains many tables database and this is in local system all transactions data will be stored in local systems ...
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3k views

How can I synchronize data between two RDS MySQL databases

I have 2 Amazon RDS MySQL instances, one is MySql v5.5 and the new one is 5.6. I want to upgrade the 5.5 to the 5.6 but you cannot do upgrades at this time, so we are trying to migrate the data. I ...
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Best practices for backing up a MySQL DB

I've recently discovered that our production web servers that run off MySQL are not being backed up regularly (or at all). I'm used to backing up SQL Server DB's but don't have a ton of experience ...
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Where Mysqldump gets data from

How mysqldump is processing backup? From which all files is it reads data for creating dump? Is the process differs if storage engines are different?
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ERROR 1166 (42000) at line 65203: Incorrect column name ''

I have a big snapshot database size is about 44GB in mydata.sql. When I run it overnight, it show this error message: $ mysql -u root < mydata.sql ERROR 1166 (42000) at line 65203: Incorrect ...
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64 views

How can I move one table from one database to other database [closed]

I want to move one table in one database to other database using mysql dump on linux terminal How can I go about it ?
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390 views

Deadlock from mysqldump --single-transaction, is it possible?

Is it possible to get a deadlock if you ran mysqldump with the argument --single-transaction ? or any other complication ? If it is used to backup a live site with many other querys running at the ...
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359 views

mysqldump―output details

I am about to write a little program to process database dump files created by mysqldump and I would like to make sure that my expectations about the »anatomy« of mysqldump's output are right. So ...
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Backup / Export data from MySQL 5.5 attachments table keeps failing!

Can anyone please help! - I have a large table in a MySQL 5.5 database. It is a table which holds a mixture of blobs/binary data and just data rows with links to file paths. It has just over a million ...
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116 views

MySQL data retained after OS reinstall

Something strange happened today. I reinstalled my OS and then when I reinstalled MySQL workbench some of my old data was still there. I think the actual local db is empty, but all the connections, ...
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101 views

Optimizing and maintaining test databases for a web development team

Right now when we test, we mysqldump from the production database, load it into the test database server, and then use scripts to scrub sensitive data. As the database is getting bigger, this process ...
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677 views

How to speed up a mysql restore from large dump file

I have a 350MB msyql dump file that takes over 3 minutes to load. I'd like to speed it up. I've tried using --opt with mysqldump (shaved off 30 seconds). The best I can achieve is 42 seconds faster. ...
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169 views

mysql: how to copy database and required dependencies

I need to set up an automated copy of a single mysql database (not the whole DBMS). If I use mysqldump to dump and recreate a DB, the copy may be unusable because the user accounts need to also be ...
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1k views

mysqldump: replace drop table in output with delete?

I am using mysqldump to dump some records in a table: mysqldump mydatabase mytable --where="field=value" this emits script that includes drop table mytable statement. Since I use the --where ...
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258 views

Moving large databases

I have a centos server and /var/lib/mysql/ is 125GB (disk has 1GB free space). Ordinarily I would use mysqldump to backup the databases, but I don't normally work with such large databases, so I need ...
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485 views

Export just rows modified in last month (date defined by user)

I'm asking if it's possible in MySQL to export just rows modified in a period of time for example in the past month, if it is possible, how?
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How can we check for data integrity when we upgrade from MySQL 4.1 to MySQL 5.5?

By data integrity, I mean: Schema integrity Data (record level) integrity Checksum was an option, but since the storage format for some data types in MySQL 5.5 has been changed, it won't be ...
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How do I safely import MySQL data in a directory to a running MariaDB server?

We're integrating another office into ours. That includes some of their data. I have a new installed MariaDB 5.5 server. The data dir = /home/data/MariaDB. I've done a new/fresh install into that ...
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mysql works, mysqldump doesn't

I have mysql 5.5 on my ubuntu 12.04 server. This command: mysql -u root -p works perfectly, but this gives me error: mysqldump -u root -p mydb_name > a.sql mysqldump: Got error: 2002: Can't ...
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Does mysqldump -all-databases include all objects

Does mysqldump -all-databases include all objects ? I have to migrate all databases to new server.
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458 views

Trouble converting MySql Database to SQL Server

I have an mysql database that contains 38 tables. I used "SQL Server Migration Assistant for Mysql" tool to convert this database to SQL server Database. I successfully converted 37 tables. Only one ...