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Full Discussion: Mysqldump certain tables
Top Forums UNIX for Dummies Questions & Answers Mysqldump certain tables Post 302743073 by timgolding on Wednesday 12th of December 2012 05:40:47 AM
Old 12-12-2012
Thanks, i wondered while i was in bed do i really need to create a smaller version of the database on the development server before i upload or would it be better to just dump remotely from the live server. i want the upload to be smooth to reduce any downtime when i do the upload. So i came up with this (ignore the drop database i will change it when i reverse engineer your script)

Code:
# I'll alter this once i understand your script.

mysqladmin -u root --password='mypassword' --socket=/tmp/mysql.sock drop DATABASE_TEMP
mysqladmin -u root --password='mypassword' --socket=/tmp/mysql.sock create DATABASE_TEMP

# Dump a smaller version of the database with compression

mysqldump -u MOVE1 --password='mypassword' -h '107.701.107.701' --opt --compress DATABASE TABLE1 TABLE2 TABLE3 | mysql --socket=/tmp/mysql.sock -u root --password='mypassword' DATABASE_TEMP
echo "temporary database successfully created"

# copy contents of temp database to the live version. Happens quickly and reduces downtime
for table in TABLE1 TABLE2 TABLE3
do
echo "moving data from $table"
mysql --socket=/tmp/mysql.sock -u root --password='mypassword' <<QUERY_INPUT
use DATABASE;
TRUNCATE TABLE $table;
INSERT INTO DATABASE.$table SELECT * FROM DATABASE_TEMP.$table;
QUERY_INPUT
done

If you see i added the tables to the dump like suggested. I will try to remove the dropping database from root now

---------- Post updated at 02:40 AM ---------- Previous update was at 01:33 AM ----------

Ok i get what your script does and have altered my script to drop the tables i want to drop rather than using show tables and dropping them all

Code:
tbl_names='TABLE1 TABLE2 TABLE3 TABLE4 TABLE5'

echo "dropping tables from temp database"
for table in $tbl_names
do
mysql --socket=/tmp/mysql.sock -u LOCAL_DROP --password='mypassword' <<QUERY_INPUT
use DATABASE_TEMP;
DROP TABLE $table;
QUERY_INPUT
done

mysqldump -u MOVE1 --password='mypassword' -h '107.701.107.701' --opt --compress DATABASE $tbl_names | mysql --socket=/tmp/mysql.sock -u root --password='mypassword' DATABASE_TEMP
echo "temporary database successfully created"

# copy contents of temp database to the live version. Happens quickly and reduces downtime
for table in $tbl_names
do
echo "moving data from $table"
mysql --socket=/tmp/mysql.sock -u root --password='mypassword' <<QUERY_INPUT
use DATABASE;
TRUNCATE TABLE $table;
INSERT INTO DATABASE.$table SELECT * FROM DATABASE_TEMP.$table;
QUERY_INPUT
done

Does that seem alright?

Last edited by timgolding; 12-12-2012 at 05:48 AM..
 

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MYSQLACCESS(1)						      General Commands Manual						    MYSQLACCESS(1)

NAME
mysqlaccess - Create new users to mysql. USAGE
mysqlaccess [host [user [db]]] OPTIONS SYNOPSIS
mysqlaccess [-?|--help] [-v|--version] [-p|--password=#] [-h|--host=#] [-d|--db=#] [-U|--superuser=#] [-P|--spassword=#] [-H|--rhost=#] [--old_server] [-b|--brief] [-t|--table] [--relnotes] [--plan] [--howto] [--debug=N] [--copy] [--preview] [--commit] [--rollback] DESCRIPTION
-?|--help display this helpscreen and exit -v|--version print information on the program `mysqlaccess' -u|--user=# username for logging in to the db -p|--password=# validate password for user -h|--host=# name or IP-number of the host -d|--db=# name of the database -U|--superuser=# connect as superuser -P|--spassword=# password for superuser -H|--rhost=# remote MySQL-server to connect to --old_server connect to old MySQL-server (before v3.21) which does not yet know how to handle full where clauses. -b|--brief single-line tabular report -t|--table report in table-format --relnotes print release-notes --plan print suggestions/ideas for future releases --howto some examples of how to run `mysqlaccess' --debug=N enter debuglevel N (0..3) --copy reload temporary grant-tables from original ones --preview show differences in privileges after making changes in (temporary) grant-tables --commit copy grant-rules from temporary tables to grant-tables (!don't forget to do an mysqladmin reload) --rollback undo the last changes to the grant-tables. NOTE
+ At least the user and the db must be given (even with wildcards) + If no host is given, `localhost' is assumed + Wilcards (*,?,%,_) are allowed for host, user and db, but be sure to escape them from your shell!! (ie type * or '*') SEE ALSO
isamchk (1), isamlog (1), mysqlaccess (1), mysqladmin (1), mysqlbug (1), mysqld (1), mysqldump (1), mysqlshow (1), msql2mysql (1), perror (1), replace (1), safe_mysqld (1), which1 (1), zap (1), AUTHOR
Ver 1.0, distribution 3.23.29a Michael (Monty) Widenius (monty@tcx.se), TCX Datakonsult AB (http://www.tcx.se). This software comes with no warranty. Manual page by L. (Kill-9) Pedersen (kill-9@kill-9.dk), Mercurmedia Data Model Architect / system developer (http://www.mer- curmedia.com) 19 December 2000 MYSQLACCESS(1)
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