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Extract Mysql table output to a log file

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# 1  
Old 10-24-2010
Extract Mysql table output to a log file

I need to compare the 2 mysql database tables. there are around 50 tables in each DB.
my idea is
in DB1
extract result select * from table1; to alog file1
in DB2
extract result select * from table1; to alog file2

now compare log file 1 file 2

pls help me out ...
thanks in advance
# 2  
Old 10-24-2010
diff file1 file2

comm -3 file1 file2

# 3  
Old 10-24-2010
thanks for ur responce
i first need to extract the table1 output(mysql) to a log file
ex: mysql> select * from table; >> /tmp/logfile
# 4  
Old 10-24-2010
Pls use the thanks button when a post helps

mysql> spool /tmp/logfile
mysql> select * from table;
mysql> spool off


by the way you might want to remove header before creating the spool ?
mysql> set head off

You also might want to sort your extraction so this would make further comparison easier
you could use the clause
 ... order by ... asc|desc

in your sql statement

Last edited by ctsgnb; 10-24-2010 at 07:30 AM..
# 5  
Old 10-24-2010
i think u can try this

sqlplus -s DATABASE << EOF > log_file_1
select * from table1

sqlplus -s DATABASE << EOF > log_file_2
select * from table2

diff log_file1 log_file2

Last edited by Scott; 10-24-2010 at 08:53 AM.. Reason: Code tags, please...
# 6  
Old 10-24-2010
Originally Posted by aishsimplesweet
i think u can try this

sqlplus -s DATABASE << EOF > log_file_1
select * from table1

sqlplus -s DATABASE << EOF > log_file_2
select * from table2

diff log_file1 log_file2
Most people would not use a tool designed to work for an Oracle DB on MySQL.

SQL*Plus is an interactive and batch query tool that is installed with every Oracle Database Server or Client installation. It has a command-line user interface, a Windows Graphical User Interface (GUI) and the iSQL*Plus web-based user interface.

SQL*Plus has its own commands and environment, and it provides access to the Oracle Database.
For MySQL you should use MySQL tools.

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