Hi,
I'm new to mysql.
I have two big tables ,tableA>4GB and tableB>1GB.
both tables around 10 million rows,each.
tableA has following two cols.
user_id(varchar(255) PRIMARY KEY
user_data1(MEDIUMTEXT)
entries looks like
user1 xyz................
user2 x1..................
tableB has following cols
user_data2:varchar(50)
user_id(varchar(255)).
tableB is indexed on (user_data2,user_id) and on
user_id.
there is no primary key in tableB since,it can have
entries like
A user1
B user1
A user2
C user2.....
I NEED to SELECT data from both tables as follwoing
SELECT tableA.userid,tableA.user_data1 from
tabelA,tableB where tableB.user_data2="myinput" AND
tableB.user_id=tableA.user_id
It was good while the table size was small,but since
the table size is big and growing,the query is
becoming slow.
I'm using mysql_use_result().
to get the result.
Any suggestion either on client query or server tuning
will
be helpful.
thanks
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