Tracking Forums, Newsgroups, Maling Lists
Home Scripts Tutorials Tracker Forums
  Advanced Search
  HOME    TRACKER    MYSQL


SuperbHosting.net have generously sponsored dedicated servers to ensure a reliable and scalable dedicated hosting solution for BigResource.com.





Import Large Amounts


My client has a large database in MS Access. I need to put a section of this (approximately 900 rows) into MySQL to be displayed on a website.
The thing is, every month I will be resupplied with updated data, which will need to replace the data that is currently in the SQL database.
I am operating on a Mac and they've given it to me as an EXCEL spreadsheet, which I am trying to import into MYSQL using phpMyADmin with no luck.
I've tried exporting from EXCEL to various formats, such as CSV, but I can't seem to get it to import into the MySQL database
Does anyone know what I can do? I need it to be relatively simple so that every month I can simply reimport the new data.
Is there some trick to importing the data from EXCEL, or should I ask the client to supply the data from MS Access in a different format.




View Complete Forum Thread with Replies

Related Forum Messages:
Handling Large Amounts Of Text
I am desiging a web store to hold and manage up to 150,000 to 200,000 items and have run into a problem which I believe can be fixed but I am not sure about the way to go about it.The problem is that every product has a rich text description that contains a lot of extra HTML code that goes into the database with the product description. I would estimate every product has an average of 10k of description and code.

Now instead of putting all of this into the database would it be possible to write this to a .txt file and keep it in a products_desc folder? Would this keep the database at a respectible size and optmize everything?Does anyone have any good examples or tutorials on going about this with PHP?

View Replies !
Inserting Large Amounts Of Data Into Mysql
I have a whole bunch of numbers and state, county, city, etc. data that i'm trying to load into a database for a demographics website. The data is all in excel currently so I could easily copy and paste it to a text file or another medium if necessary but I'm wondering what the quickest and most efficient way to get it all entered into mysql is.

View Replies !
A Large *.sql Import
I am trying to import a very large .sql file of about 165mb. When i try to import the file i use "source C:DB.sql" and it runs for a bit and then stops. When i try to query on this table it crashes. But when i do "show columns from DB;" is show me the information correctly. I did update my my.ini config file with:
innodb_data_file_path = cseibdata1:10M:autoextend
still not working.

View Replies !
Import Large Database
I saved my website databgase to my home computer. I am setting up a local
version of the site, and need to import the database. I have mysql and
everything set up.

But when I try to run the sql script that I exported from
my site's control panel, I get an out of memory error. What is the proper
way to import this database? Do I need to increase some memory setting?

View Replies !
Import Large Excel File
I have a large excel file, and some of the contents of it contain commas. I was wondering how I can import this information into mysql. I was thinking of using csv formant, but think the excess commas in the populated information will cause issues with this.

View Replies !
Large Phpmyadmin Import And Exports
I have now managed to develop a rather good site that's proving very sucessful. Resting back on my laurels I wasn't being thorough in my testing of the routines I'd put in place for backing up and restoring the databases. Initially all was well and the export routine in PHPMyAdmin was working wonderfully, all databases were being backed up and to reinstall them simply paste them into a SQL Query and it would create everything again.

Anyway cutting to the chase, a couple of days ago I was creating a mirror site and I exported the databases and to my surprise the file was truncating half way through the export. Actually it was more to my horror, as we'd been backing up the site's 11,000 members using this method and as we'd received no error messages we just assumed all was working well. Any failure and we'd be up the creek without a backup and a rather important business venture could have gone down the pan. Code:

View Replies !
Import Large Size CSV File Into Table
I need to import a large size CSV file, around 1 million records into a table, I found that the speed is very slow, it takes 1 minute to import 1400 records. If I import the whole file, it will takes more than 10 hours.

View Replies !
Large Text File Import/input With Some Twists
I have a large text file, delimited by '|', with over 2million records (yes 2 million). I need to import/input this file in to a new table. There a three date fields in the text file, but the date has been stored in the format: '2008/07/20'. The table I am trying to bring the data into has the fields defined as 'date' and when I try to load the data using 'load data local infile ... etc', the dates just come in as '0000-00-00'.

As I'm a bit of a newbie to this - what am I doing wrong? Is there a better way to import the data? (I can't use the bigdump utility as it is on a db where the admin's have even less skill than myself and they told me they don't know how to install/configure the utility).

View Replies !
Most Efficient Way To Import Large Data Dump From Phpmyadmin?
I have a large data dump (export) from phpmyadmin my client just gave me - 200k - .

What's the most efficient way to import that into a new database? The new db has not defined tables since that is part of the phpmyadmin export.



View Replies !
Mammoth Amounts Of Self Joins
I have a table that contains keywords (Varchars) each one mapped to a
product. so the database schema is just an id column, product column and
keyword column.

I want to select the products that contain x,y,z keywords. Now if this query
involves many keywords I end up with a massive amount of self joins on the
keywords table, is there a better way to do this than self joins? What would
work perhaps is multiple unions where I could discard non duplicated rows
but you can't seem to do that. Any ideas... ?

View Replies !
Adding Amounts Of Time
I am looking for a way, as the title suggests, to add a length of time to a time-type field.I needed to type something, and this is what I logically typed (of course, incorrect):

SET playtime=playtime + '$length'

Let's say playtime = 00:10:30, and $length = 00:04:30. What do I need to change the above statement to, so that the new value of playtime = 00:15:00 ?


View Replies !
SUM Of The Amounts And The Last Updated DATE
I got the following table details. I need the query to return the SUM of the amount column with the last updated DATE

I have written the following query to make this happen.. but ....

View Replies !
Getting The Sum Of Amounts For Each User - How To Join?
I have a simple table for transactions that will store information like a bank account.

To find the balance for a given user I want to sum all the amounts and display the result
How can I do this for more than one user at a time?

CREATE TABLE `transactions` (
`id` int(5) NOT NULL auto_increment,
`user_id` int(10) NOT NULL default Ɔ',
`created` datetime default NULL,
`modified` datetime default NULL,
`description` text character set latin1 collate latin1_general_cs NOT NULL,
`amount` decimal(10,0) NOT NULL,
PRIMARY KEY (`id`),
KEY `user_id` (`user_id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1

I'm hoping to get output like:

user_id | balance(sum of amounts)
------------------------------------------
1 | 70
2 | -70
3 | 10
4 | 5

View Replies !
How To Save Accounts Based On Variable Amounts Of Time
I'm currently building a website where users can signup for various accounts.
An account may last 30 days, 12 months or 24 months.
If a user's account is about to expire, an email notification is send, via a CRON Job.

I want to save the different account types in the database, but I'm not sure how to save the duration of an account. If it was all months, I could simply save ཈' or པ' as an INT, but it also has an account for 30 days, which is more flexible.

Edit:

It would also be nice if I could ORDER BY duration..


View Replies !
Large Db
i have some problem when trying make insert a lot of row in a large db.
I have to pharse a 10 file of 1 million of record and insert it into a
table ...
when arrive at around 1 million of record, every 1000 / 2000 records,
the query take 1 or 2 second to make 1 insert, then restart with a
normal fast inserting ...

in first i think was an hardware problem (like hd with bad sector or
similar) but i changed pc and the problem persist

the so is slackware 10.1 with recompiled mysql 5.1
the client program that made the insert is a vb application and the
odbc is 3.51

View Replies !
Large SQL
Just wondering if there is a better way to view SQL code. Reason I ask this is because I have downloaded a backup of my database onto my local machine (desktop) and the only way I can view the .sql file is in Note Pad but it takes ages to load.
Is there any software that allows me to view my msSQL backup?

View Replies !
Large Databases
We are in the process of building an application to front end a
database of about 2 million records. I would like to know if MYSQL can
handle this and if not, what would be a good database to go with. We
would like to use opensource as much as possible, but if MYSQL cannot
handle this kind of volume then we will have to go in for commercial
software.

View Replies !
Precaution For A Large Db
I have to handle a very big (~50 gigabyte) database (quite all in a
table), and I am going to use mysql.
Can mysql handle all that ammount of data?
What problems I am going to have?
Should I take any precaution?
Is some other database-engine more suitable for this work?
Posgresql maybe?

View Replies !
Large Tables
So i've got a table with 15 million rows. id is the primary key

SELECT COUNT(id) FROM listings WHERE id != 0;

Takes about a minute to load... which is insanely slow..
anyone know what could be causing this?

View Replies !
Importing A Very Large DB
I have a rather large .sql dump that I was given to work with thats about 3 gig. I cannot get a smaller .sql dump unfortunately.
I am using wamp server on my local machine and importing this database will take forever. I have two questions......

Can I optimize the amount of memory or processor dedicated to php or mysql to speed this up? Is there a way to add some sql parameters to the import to only import parts of the database I am working with? One of the columns is a unix timestamp which would also solve my problem.

View Replies !
Large Result Set
I have a question regarding working w/ an extremely large result set - or maybe better yet how I could possibly avoid it. I have a table w/ several million records and I need to loop thru and check each record against an entry in another table and if a match is found write most of the current row's fields out to a file. My problem is when I query for the first set the result set is too large and I blow my memory.

View Replies !
Very Large Tables
I am looking at using mysql to store some particle physics data. So the idea is (for example) I would have a table with a list of events, then a table with a list of particle types (one event can have many particles) and so on. The problem is that quite often I want to calculate something for every single event, but this table might run into 10s of millions of events and many GB. Obviously it would be mad to load the whole result set into memory then iterate over it. My question is: is there any way to have the db push results to the users one (or a few) at a time in an effiecent way? I was thinking of something like an iterator that pulls the data from the disk one (or few) at a time. An alternative (but much less useful) method might be to hand the function I want to calculate to mysql, for example:
select myfunc(x,y,z,a,b,c) from events where energy>3;
But as far as I know there is no way of defining your own functions in SQL

View Replies !
Very Large Bin Logs
We're getting several very large binary logs, reaching overall over 10GB which is a problem:

- When does mysql decide to purge the logs if at all
- Is there a way to control the number of bin logs created
- If the bin log size is set to a small number with max_binlog_size, will we get lots of small files ?

View Replies !
Large Table
I have a website with over 36,000 registered users. I have a table with 5 million+ records, each of which correspond to a particular user. Obviously some users are tied to a few of these records, others are tied to thousands.I am trying to decide:

-Keep everything in the one table, and allow it to grow infinitely large.
-Create an individual table for each of the 36,000 users and keep only their records in their respective table.

View Replies !
My Table's Name Seems Too Large :S
If I execute a query to a mysql datasource and select any table that has this name:

select * from 2006-catalogo-productos

.... gives me an error: 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 ��-catalogo-productos' at line 1

but, i don't have that effect if I select another table of the same datasource, eg:

select * from artistas

The only difference seems to be that one table's name is larger than the another. I can't change the table's name... ¿any idea?

View Replies !
VERY Large Database
I have such question - how I should split large data for the better performance?
Its seems to be old question, but can't find it in search

Lets say if I have 10000 items, each have 10000 records - at the start and much more later.
Main operations - INSERT/SELECT (search for the records on some item by key)
DELETE/UPDATE almost will not be used (because of the implementation)

I see few possible options
1. Create 100 databases, in each 100 tables, in each 10000 records (records for the 1 item).
2. Create 1 large table with internal index.

As I understand, main difference between 1 and 2, that in case 2 main load will be drived to the mysql and index, in case 1 main load will be drived to the FAT (or whatever else used at the server).

But before mysql will use index large file (or its index) will need to be loaded, so in case 2 FAT will be loaded too.

IMHO option 1 is better from performance side.

View Replies !
Large Queries
What would be the easiest way to split an sql file of 80mb into multiple smaller sql files?

View Replies !
Large DB Restore
I'm trying to restore a fairly large database in MySQL.
Either my wireless connection drops or in the last instance, the session stayed logged in, and it gave me a message that i lost connection to the MySQL server(which was local). The restore file is on the server, and the command I'm using is just "mysql < localhost.sql", but after several atmysqlts,

View Replies !
MySQL With Large Table.
I am using MySQL for a table which will have 100M+ records, avg length
of records being 130 bytes.

When the number of records reach approx. 25M (and the file size close
to 4GB), the rate of inserts falls drastically from 800 per second to
30-40 per second.

Details:
* MySQL 3.23.58 on Fedora Core 3
* Table has 4 indices.
* I have got rid of 4GB file size problem with MAX_ROWS=1000000000.
* File system : ext3 on single disk. ext3 could create 10G file
without much trouble. So I am convinced that ext3 is not the
bottleneck.
* Tried using InnoDB engine but it also doesn't meet the requirements.

Requirements of database:
* A single table in the database with 100M+ rows, each of size 130
bytes (approx).
* 500-600 inserts per second.
* 200 selects and 200 updates per second. (These statements will
affect only one row)
* 3-5 select statements per minute which can return 10k to 500k
records.
* No foreign keys/ACID transaction requirements.
* Fast recovery in case of crash.

Questions:
* Does MySQL performance drops when the table grows beyond 4G?
* Which are most important server variables which need to fine tuned?
Currently I am using only key_buffer = 512M.

View Replies !
Large Record Count
I have a client who wants me to take on a project wherein they have, on
another table in another DB, about 1.2 million records. I am going to have
to consider, in this project, a record length of about 200 bytes, and am
wondering if MYSQL (5.x, on a first-rate Windows server) can handle such
size. Does anyone have experience with something that large?

View Replies !
Migrating Large Db From One Server To Another
I am having huge problems migrating large db’s from one server to
another. I use phpmyadmin to dump the data into a file, and then
migrate it to my production server. Then I try to use this:
mysql dbname < filename
but if the tables are too large, it simply does not work.

So I tried the following two work-arounds, which work but are tedious.
Is there a nicer way to do it:

Solution A: Create a dump file with subset of all the tables, to
reduce size

Solution B: Take a zip of the table structure directly, and then copy
that. Problem here is that all the tables have to be individually
"repaired" so that mysql is in synch with its new data.

View Replies !
Large Test Table
How do I create a very large table, for testing? Can I download one somewhere? I've tried to search google, but couldn't find anything.

The contents dosn't need to mean anything, so a random function with a
loop or so should do it, but if I could download a large test table
somewhere with "meaning" that would be great.

View Replies !
Large Table Or Many Tables?
I posted a similar question about 6~12 months ago with no definate answer, so I will give it another go, as the choice has popped up again in my programming life:

If the number of entries is the same is it more efficient (better) to have a single table with many columns, or many tables with few columns? The obvious answer is a single table, because there is less closing and opening tables, but the reason why I ask is what about searching through a lot of columns being even more inefficient?

The situation is I need to record data for every week of the year. Say ~50 columns per week --> 2600 columns. Or, do I split it so it's 52 tables with 50 columns each? In each of these options the user (or user ID) will be the primary key.

The seemingly pointless other option is to insert new columns with every new user, and have the week-item as the primary key?

View Replies !
Reduce Large Sql Queries
I will be working on a project which i can see having quite large tables of data, particularly a transaction table which will store credit and debits from users accounts. Obviously to get a balance I would just need to sum all the transaction on the account and that would produce the current balance. My concern is that the table may become very large and displaying the account balance may end being a large query.
Is there a better may to approach this? I know i could have a balance field but I don't like the idea of that in case it become erroneous.

View Replies !
Breaking Up A Large Table
I'm working with a web-based project management app that stores task information for multiple users in a common 'tasks' table. The table has over 500K rows at this point and is accessed by around 1000 users. The queries are optimized and the table is indexed properly (I think) but as the db grows performance is starting to lag. I'm thinking that the quick fix would be to break up the tasks table into smaller ones by user. So ...
is that a good idea? All of a sudden I'm going to have 1000 more tables. Also the app code will be adding tables on the fly as new users come on board. (The existing tables are all of type MyISAM)

View Replies !
Large Number Of Queries
Ive currently got a loop on a php page which takes ~7000 rows from an sql table, parses information from it and does inserts/updates/deletes depending on the information.
At the moment, it does a new mysql_query for each of the inserts/updates/deletes so it ends up doing ~10k queries each time its run.
Im wondering if its better to use an array to store the queries and then put them all together (";" seperated) and run all the queries at once in the same mysql_query.
One thing to bear in mind is some of the data involved in the queries relies on previous data from queries in the loop, would this cause any problems with the combined query

View Replies !
Large Number Of Tables
I would like to ask whether it is feasible (or whether it makes sense) to run a PHP script that creates a number of tables for each user.
Basically, this script allows users to sign up for a free service, and for each user that signs up, the script creates 9 tables in the database to contain that user's details.
Is this a sensible way of containing user data, and what are the inherent problems this may cause especially when say are 1000 users signup?

View Replies !
Large DataBase Columns
I am developing, what i consider to be, an extremely large database, using mysql and php.
im concerned that one of my sql tables will be too large.
tonight, im running some tests, but i was hoping the forums
could toss me some good advise.
The table will be around 1500 columns long, and
about 500 rows on average.
each column will not be any larger than 20 varchars.
i've never created anything beyond 30 columns.
is this beyond what's recommended with using mysql ???
i know the queries may take a little bit to load, but is
this simply a bad idea anyway, or am i just getting nervous
for no reason at all.

View Replies !
Importing Large Statements
I have a large SQL Statement file(297Mb) on my FTP. I want to import it into MySQL.
What command line option would I use to import my .sql statement file?

View Replies !
Large Database Table
I am using MYSQL in order to develope a database table that currently has about 20 million records. The table grows on a daily basis and is expected to grow to a size of about 300 million records.I wanted to get some suggestions in order to handle such large database. What kind of indexes are best? When should splitting the table be considered? What are ways of achieving good performance of queries?

View Replies !
Large Join Query
I am at a loss. Right now I have a PHP script that needs to run a huge join query. They query joins two tables of approximately 200,000 records. I'm running mysql 3.x so I can't use a view... at this point indexes don't seem to help. I am thinking the only way to do this is with script processing

View Replies !
Large MySQL Database
There are many threads on here about large db designs etc but I'm looking for a little information I have been unable to find anywhere.
What sort of design to places like facebook/myspace use for their database(s).
Is it best to have a table for user info (id, username, email, etc) then have a table for every feature of your site (blogs, pictures, friends, comments etc etc) or do they have a table for every user.
I would assume the first as a table for every user would soon grow very very large and become inefficeint.

View Replies !
Large .sql File & Phpmyadmin
My ex-host recently gave me a backup of my ftp and database. The database consists of one massive .sql file. I've tried uploading the .sql as an SQL query via PhpMyAdmin, but the limit for files in PhpMyAdmin is set at 12mgb. The database is 32mb. Is there any way I can get the database up?

View Replies !
Large Query Times
SELECT distinct column1 FROM table1, table2 WHERE column1 <> column2 ....

View Replies !
Normalizing Large Pieces

Let's say I have a user's table that is very frequently used:
user
________________________________________
user_id(PK),user_username,user_password
-------------------------------------------------------
And a user_info table that is not so frequently used:
user_info
_____________________________________________________________
user_id(PK),user_info_fname,user_info_lname,user_info_address,
user_info_city,user_info_state,user_info_zip,user_info_email
-------------------------------------------------------------------------------------
Now what I was thinking is that the user_info table is much to large to be considered a normalized table. If so, how can I break it up efficiently?

View Replies !
One Large Call Or Several Smaller Ones
Say have 250,000 rows to play with, and I want to show the results for the last week, the last month, and then the previous 6 months - do I may a query for each month or do I retrieve the results for all 6 month and let PHP do the work for me?

Whats the best way? What are the arguments for and against?
Anybody got any good resources I can have a read of?

View Replies !
Large Data Sets
I'd like to store a large data set of the following form in MySQL: about 8000 replies (by unique institutions) to a questionnaire with 3000 fields at 120 different dates. Fields are either versions of int or char with lengths between 8 and 75. I need to do searches across all those dimensions (institutions, fields, dates).

I'm wondering what the best database design (in terms of query speed) would be (3Ghz Pentium, 1GB RAM, Linux 2.6, one hard disk).

View Replies !
Split Large Database
I made a backup from cpanel and install a forum and website in localhost, with easyphp. Everthing works fine, but i need to install using pypmyadmin my database.
But phpmyadmin only import files at 8 Mb. My database are larger, almost 20Mb. I would like to know how to split my database in small files, in order to import from phpmyadmin. Maybe exist a software with a grafic interface?

View Replies !
Copying A Large Table
I need to copy a large table without locking the database.

So at the moment i have

Insert into newtable select * from oldtable.

This locks the database for 10 seconds which although doesn't sound like a lot of time is 2 much for what i need the database for!.

I have looked at these commands

FOR UPDATE.
LOCK IN SHARE MODE.
SQL_BUFFER_RESULT

But I am not quite sure if any of these actually perform what i would like to do.

The other option is to update the table line by line or in chunks using limit i suppose. But im sure there must be a better way.

View Replies !
Merge Two Large Databases
I have a large table T, of over 100,000 records, each with 20 odd columns,
let's say where one column is named 'NR', a bigint. The value of NR is
unique in so far as it is !=0, but there are a number of records where
NR==0.

Now I have a second database (actually a csv text file, but let's call it
table F) of ca. 3,000 records, which consists of two columns: one contains
a NR (always !=0) exactly like NR in table T (but only a subset), and the
second column is actually a kind of tag or boolean value that applies to
NR, and would apply to a record with NR in the large table T. Code:

View Replies !
Large DB Should Use Multiple Tables?
I have a social networking site similar to myspace, currently my table which links who is who's friend on my site is 2 weeks old and is at 300,000 rows but is only at 15mb in size, this is the most accessed table of all my tables.

My question for performance, as this table grows should it eventually make a new table? If so here is my current select code

select userid,friendid,status from friend_friend where userid='$temp[auto_id]' and status='1'

Could someone give me an example of how o select this from multiple tables if I add more for this table in the future?

View Replies !

Copyright © 2005-08 www.BigResource.com, All rights reserved