mysqldump

Mysqldump源码分析

元气小坏坏 提交于 2019-12-23 11:19:34
【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 版权声明:本文由王珏原创文章,转载请注明出处: 文章原文链接: https://www.qcloud.com/community/article/261 来源:腾云阁 https://www.qcloud.com/community Mysqldump源码分析 王珏 标签: MySQL 2016-12-13 15:41:13 21 本文对mysql5.6.24 mysqldump工具做了简要分析,流程调用序列如下图所示: 流程分析: get_options : 获取mysql参数 connect_to_db : 连接mysql write_header : 写入文件头,保存源数据库原始变量值:字符集、时区、SQL mode等 -- MySQL dump 10.13 Distrib 5.6.24, for Linux (x86_64) -- -- Host: localhost Database: test -- ------------------------------------------------------ -- Server version 5.6.24-log /*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */; /*

How to dump temporary MySQL table into a file?

谁都会走 提交于 2019-12-23 10:25:30
问题 Is there a way to create a dump/export/save a temporary MySQL table into a file on disk(.sql file that is, similar to one that is created by mysqldump)? 回答1: Sorry, I did not read the question properly the first time around... at any rate, the best I can think of is using the SELECT ... INTO OUTFILE statement, like this: SELECT * INTO OUTFILE 'result.csv' FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"' LINES TERMINATED BY '\n' FROM temp_table; This does have many limitations thought, for

Error Code 13 in Mysql on UNIX. Can anyone Help me?

我们两清 提交于 2019-12-23 07:02:59
问题 I'm Using MySQL Server on UNIX System, when i'm execute the below query SELECT * INTO '/home/krunal/backupData/myBackup1.txt' FROM tbl_Property; it shows the error ERROR 1 (HY000): Can't Create /Write to file >'/home/krunal/backupData/myBackup1.txt' (Errorcode : 13) Can anyone tell me that how can i solve this error **Note** : I have all the permission on dir backupData , Read , Write , Execute 回答1: You messed up with /home/krunal/backupData/ permissions. To fix: chown root:root /home/krunal

mysql password is messing up my dump

血红的双手。 提交于 2019-12-23 06:48:21
问题 ok so i need to do a mysqldump of a database and this is what i have mysqldump -uroot -psdfas@N$pr!nT --databases app_pro > /srv/DUMPFILE.SQL but i am getting this error -bash: !nT: event not found seems to be having a hard time with the password...any other way to mysql dump 回答1: Put -psdfas@N$pr!nT in single quotes: mysqldump -uroot '-psdfas@N$pr!nT' --databases app_pro > /srv/DUMPFILE.SQL The problem is that bash is interpreting the ! . Strings in single quotes aren't interpreted. 回答2: You

MySQLDump from executable on Windows 7

主宰稳场 提交于 2019-12-23 05:42:10
问题 I tried to dump a mysql database with calling a wsh jscript file, but it doesn't work. I have this code, called with git shell, and it works perfectly: # If something fails, exit with status other than 0 set -e # select dump directory cd "$(git rev-parse --show-toplevel)" # first, remove our original schema rm -f "WebShop\DataBase\backup.sql" # generate a new schema exec "C:\Program Files\MySQL\MySQL Server 5.5\bin\mysqldump.exe" --skip-comments -u root --password=root webshopdb |sed 's$),($)

dumping DB in mysql

北慕城南 提交于 2019-12-23 04:56:51
问题 when I run below statement, mysql is complaining having error. mysqldump --triggers --routines -u root -p mydb > mydb_20120924.dmp; mysql version: 5.1.34 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'mysqldump --triggers --routines -u root -p mydb > mydb_20120924.dmp' at line 1 回答1: It looks like you are trying to run the mysqldump command from inside the mysql command line interpreter. Does the prompt

Copying a mysql database generates “ERROR: unknown command” when importing

百般思念 提交于 2019-12-23 04:15:08
问题 I'm on a japanese system using xampp. This is the line I use to dump my database. c:\xampp\mysql\bin>mysqldump.exe -uroot wp_newsja > dump.sql Then I create a database on another server. c:\xampp\mysql\bin>mysqladmin -uroot create db But when I try to execute the sql... c:\xampp\mysql\bin>mysql -uroot db < dump.sql ... I get the following error. ERROR at line 145: Unknown command '¥''. On a japanese computer windows path slashes / are represented with "¥". Which leads me to believe this is an

How to prevent mysqldump from splitting dumps into 1MB increments?

a 夏天 提交于 2019-12-23 03:06:21
问题 I have a fairly large MySQL table (11.5 million rows). In terms of data size, the table is ~2GB. My max_allowed_packet is 64MB. I'm backing up the table using mysqldump by creating a batch of inserts (500,000 values each), because the resulting sql file produced using the mysqldump option --skip-extended-insert just takes too long to re-insert. This is what I'm running (from a perl script): `mysqldump -u root -pmypassword --no-data mydb mytable > mybackup.sql` my $offset = 0; while ($offset <

mysqldump doing a partial backup - incomplete table dump

☆樱花仙子☆ 提交于 2019-12-23 02:53:26
问题 I have a database of about 6GB in size and it has a table with 12.6 million rows. I tried to export the database into a SQL dump by: mysqldump -u root -p db_name > db_name.sql When the command finishes, the exported SQL dump file is just about 2GB and the primary table got exported only about 1 million rows. What could possibly be wrong? 回答1: There is a 2GB filesize limit for some reason, the easiest way to get around this is using split : mysqldump ... | split -b 250m - filename.sql- You can

mysqldump doing a partial backup - incomplete table dump

老子叫甜甜 提交于 2019-12-23 02:53:02
问题 I have a database of about 6GB in size and it has a table with 12.6 million rows. I tried to export the database into a SQL dump by: mysqldump -u root -p db_name > db_name.sql When the command finishes, the exported SQL dump file is just about 2GB and the primary table got exported only about 1 million rows. What could possibly be wrong? 回答1: There is a 2GB filesize limit for some reason, the easiest way to get around this is using split : mysqldump ... | split -b 250m - filename.sql- You can