MYSQL :: UPDATE Linking Other Tables

Linking Tables
In my database, I have two tables. The main table has a field named 'category'. The second table has a field named 'webcategory'. The main table is the table I use for all my queries as it holds all of the stock details. However, the category field is not suitable for web use, so someone (not me!) has created the second table which takes all categories and provides a web category.

I need to somehow link the 'category' field to the 'webcategory' field so that when displayed on a web page the 'category' changes to display the relevant 'webcategory'.

Linking Three Tables Together
I have used MySQL to create a DB to keep track of baseball stats and player profiles. I have created one table to keep track of player details (name, age, ht. wt., etc.). I have created a 2nd table which holds stats for 2004 (ab, h, 2b, 3b, hr, etc.). I thought that I could link the tables together based on id which is the primary key.

I will have a 3rd table which will hold 2005 stats etc, etc, etc. Can I do this?? When I am making a query can I link the tables together? I am not sure how to do this. I have read a couple tutorials, but they are slightly different then the way I would like to use my data.

Linking Tables?
I have a table which stores user information...

User:
User_ID
Name

and i have a table the stores Contest Results

Contest_Results:
User_ID
Contest_ID
Votes

i have done this query

SELECT * FROM Contest_Results WHERE Contest_ID = $Contest_ID ORDER BY $Votes Asc

Now i want to list all the users Names Who have entered the contest which i just queryed... How do i do this? Code:

Linking Tables
i have two databases set up, one is called test and contains phpbb2 data from my forums. the other is called chat and contains data for voodoo chat. What i would like to do is link or synchronise the tables that contain user data.

There is one in test called phpbb_users, i have imported this to the chat database for testing purposes. there are around 4 fields that i want to link which are:

DB from: Table From: DB to: Table To:
test phpbb2_users chat voc_users

Fields to match:

test: chat:
user_id id
user_name nick
user_sig user_info
user_lastvisit last_visit
user_email registration_email

Linking Two Tables
I need to join two tables, one is already popluated and distinguished by the listing ID. How do I link my reviews table to it. I know it will be by the listing ID, but how?

Linking Tables
If you have a number of linked tables is there some way to return just one row where fields with many values are put in an array? When I do my JOIN query I get a matrix of results showing every possible combo of the linked tables i.e.:
maintbl---tbl1---tbl2---tbl3
1-----------1------1------1
1-----------1------1------2
1-----------1------1------3
1-----------1------2------1
1-----------1------2------2
1-----------1------2------3
What I would like is:
maintbl---tbl1---tbl2---tbl3
1-----------1-----1,2---1,2,3

Linking Two Tables
I need to link two existing tables. One that is already popluated is ListingsDB and has a unique ID, the other is a review script that I want linked to the listings. How do i do that. I know it will be through the ID field

Linking Tables
Does linking tables with JOIN offer any significant performance
advantage or does it just make things more simple from a programming
standpoint?

Linking Tables Nightmare
I'm developing a site in mysql/dreamwever. Could anyone suggest why the query below is not working. 'colname' and 'colname1' are the result of a drop down which passes via URL - i.e. type1, type2. Its bassically suppost to query a bunch of fields in the table 'inst' - then link it to the members table it via the members field the in the 'inst' table - then the ID fields in the 'type1' table and 'type2' should link to the set of numbers in the 'inst' table.
You might get more of an idea by visiting on www.therecital.co.uk. Basically each member can have up to 5 instruments or specialities which are split up into sub categories (type1, type2). Please help
SELECT *
FROM members, type1, type2, inst
WHERE ((type1.ID1 = inst.type1a) AND (type1.ID1 = inst.type1b) AND (type1.ID1 = inst.type1c) AND (type1.ID1 = inst.type1d) AND (type1.ID1 = inst.type1e)) AND ((type2.ID2 = inst.type2a) AND (type2.ID2 = inst.type2b) AND (type2.ID2 = inst.type2c) AND (type2.ID2 = inst.type2d) AND (type2.ID2 = inst.type2e)) AND ((inst.type1a LIKE 'colname' AND inst.type2a LIKE 'colname1') OR (inst.type1b LIKE 'colname' AND inst.type2b LIKE 'colname1') OR (inst.type1c LIKE 'colname' AND inst.type2c LIKE 'colname1') OR (inst.type1d LIKE 'colname' AND inst.type2d LIKE 'colname1') OR (inst.type1e LIKE 'colname' AND inst.type2e LIKE 'colname1')) AND (inst.member = members.ID)

Linking MySQL Tables
I have a Providex database that has a ODBC driver and I can import tables or queries into excel fine. The problem is I have to MANUALLY refresh the excel file DAILY so that the end of day report items are updated from the database into the excel sheet.

What I would like to do is link the necessary tables in Providex to a MySQL table and then run the queries on the MySQL table. In doing so, I would need the MySQL table to constantly refresh with the Providex database or at least make it where I could refresh it periodically throughout the day.

I know that it is possible to link tables in Access to automatically update when the source is changed, is there some of the same functionality in MySQL? I really don't have any experience with MySQL but have some experience with SQL queries from Microsoft Query and ASP webpages. Any examples or webpages that may outline the process would be great as well.

Linking Columns/tables
I have a series of tables setup, some of which contain columns named the same, such as 'clientid'. The first clientid value is generated by auto_increment in the 'clientaddr' table and when I add a client contact, this value is passed using a query string and inserted using a form field into the 'clientcontacts' table which also has a clientid column.

Linking Two MySql Members Tables To = One
I have set up a forum as well as user auth into the heart of my site - however - I am still new to creating systems such as I have been working on and did not consider a repetitive user authentication system - I have two login forms - one for the forum on one database (in its own table) and one for the site itself on another database (in its own table) - Is there a way I can link the main site's user auth - to that of the forum auth and use only one members login and registration database for the whole site - instead of having multiple logins through out the site???

MSAccess And ODBC Problem Linking Tables
my environment is:
- windows2000 pro.
- Access2000
- mysql 4.1
- MySQL ODBC 3.5.1

When i try to link tables that exist on the mysql db to the access project,
through odbc, the dialog that asks me which tables to link does not appear.
The odbc window vanishes after i select the odbc driver.

Best Way To Deal With Linking Tables And Foreign Keys When InnoDB Is Not An Option.
Title covers most of it.

On database insertion I suffer from a lack of transactions, which means I can enter the data into the primary database, then have the database fail with exactingly bad timing and fail when I am making my entries in other tables or the linking table.

On data deletion I suffer from a lack of foreign key constraints so again the database can fail after I delete my entry from my main table, but before I enter the data for my linking tables.

My biggest conern is that I end up with data in the linking tables but not in the main table. Then if I tried to re-enter that main entry with those linking table entries I would get an error due to duplication of the primary key (concacted id of the two foreign keys) in my linking table.

I am considering elaborate if loops in my php to try and catch errors and delete the whole entry if the errors occur. The problem being that the errors will occur when the database is misbehaving so my odds that the delete will work might be somewhat low.

Has anyone else had to work withou InnoDB much in scenarios like this?

Update All Tables
Is it possible to update all tables in my DB on one query

Update Multiple Tables?
situation:
a user wants to change their username on my site and their username is littered accross many tables in the DB. If in every one of those tables i've got a static "user_id" column as well as the "username" column, what is the best way to update all of the different tables with the most efficiency?

Update - Mult Tables
Early experimentail stages with Databases. I have this little faq sys running on my dev server BUT just uiploaded to my host and what yer know it aint working..

two tables question and answers
two "Poted vars" $an and $id

I am trying to update the answer to a qu....

UPDATE answers,questions SET anstext = '$an' WHERE questions.ans_id = answers.id AND questions.id= '$id'
I read that multiple tables was only suppoerted on later vers on Mysql...OR is my syntax just wrong

How To Update Two Or More Tables Simultaneously
How can I update two or more tables simultaneously with single update query ?

Update 3 Tables At A Time
i have 3 tables namely--- artist, journalist and songs.
i try to update the flags in artist and journalist and try to update few fields from songs by firing foloowing qurries.

update songs set sname='lala', sname2='my baby' where artistid=6;
update artist set statusartist='new',flag1='updated' where artistid=6;
update journalist set statusjourn='new',flag1='updated' where journid=4;

when i fire the above querries individually they are excuted without any error.
when i try to run these querries through my JSP application only the songs data is updated and the rest 2 tables are not.

i tried to write 1 combined query including all 3 tables for this,but still it didnt work.
can u please tell me a solution for this.

Best Way To Update Multiple Tables At Once
I need to update a few tables at once. I have a form, were I fill in some information about a concert, which updates thez concert-table. Next to this, I need to update the bands-table, the statistics-table, and some others. What would be the safest, and fastest way to achieve this?

Update Query Between Two Tables
I am having a problem with getting an update query to work. here's what I am using:
Update stck Set vendor = 'items.vendor' where prtn = 'items.prtn'

I am getting a items table not found error. I thought this is what I needed to do to update many records from one table to another.

UPDATE With Related Tables?
I have a forum structure stored in a MySQL database and recent changes I made to a web site using it made it stop incrementing the "replycount" for threads (yup, pretty silly :-)) anyways, I am working on a stored procedure (or just an SQL statement) that I can call to recalculate the reply counts.

The two tables are structured like so:

mysql> describe thread;
+------------+-------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+------------+-------------+------+-----+---------+----------------+
| tid | int(11) | NO | PRI | NULL | auto_increment |
| title | varchar(50) | YES | | NULL | |
| lastpost | datetime | YES | | NULL | |
| viewcount | int(11) | YES | | NULL | |
| replycount | int(11) | YES | | NULL | |
| author | int(11) | YES | | NULL | |
+------------+-------------+------+-----+---------+----------------+
6 rows in set (0.01 sec)

mysql> describe post;
+----------+---------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+----------+---------+------+-----+---------+----------------+
| tid | int(11) | YES | | NULL | |
| pid | int(11) | NO | PRI | NULL | auto_increment |
| authorid | int(11) | YES | | NULL | |
| body | text | YES | | NULL | |
+----------+---------+------+-----+---------+----------------+
4 rows in set (0.00 sec)

Is there a way to do an update query that will link the two tables, then group on the 'tid' field, then use the count result from the 'tid' field to inset into 'replycount'? Also, this is an example showing how the info is related, just in case I dont make it clear enough to understand:

SELECT thread.tid, thread.title, count(thread.tid)
FROM thread, post
WHERE thread.tid=post.tid
GROUP BY thread.tid

How Do I Automatically Update Tables?
I need some very basic information and ,being new to mysql, am not sure what keywords to use to search for an answer. Would someone please tell me either where I can find the info I seek or what they keywords would be?

I have created three tables and added foreign keys from tables 1 and 2 to table 3.

Example:
#1
person table
person_id pr key

#2
location table
loc_id pr key

#3
event table
event_id pr key
foreign keys: person_id & loc_id

Please note that these table examples have more columns than what is being shown.

When updating the event table, how do I get the foreign key colums to choose the correct person_id and loc_id and automatically update? So far, the mysql tutorial book does not address this in their examples so I must assume that the foreign key columns were updated manually.

Others have told me that this can be done using forms and subforms. If this is so, how?. And, can it not be done also in mysql using the command line?

If forms is part of the answer, I am familiar with them, having used them in my website. I am learning php and have created test forms to update my tables. So far, I can't get the tables to actually update although the php code states that I have connected to both the database and table but that is another issue. My point is that I have some knowledge of forms and php.

I just can not find any info telling me how the forms, subforms, php and mysql may work together to automatically update the tables.

How To Update Tables Automatic?
I have a table with all FOREIGN KEYS pointing to tables with PRIMARY KEYS. But when i add data to base table(Primary Key) it should auto update the dereived(Foreign key) table

Live Update Of Tables
I do have the following problem:
A local server running MySql includes the database A, another server in another region (connected to the internet) includes a mirror database of A. What I need is to live update the tables of the mirror database via a secure connection. Both networks have an internet connection.

Using Form To Update 2 Tables
how to change ths script below so it can update the same cells in another table aswell the current table. in other words updates two tables at the same time.

<?php
if ($submit) {

require("db.php");
$con = mysql_connect("$db_host", "$db_user", "$db_pass");
$db = @mysql_select_db("$db_name",$con);
$sql = "INSERT INTO support (prod_code,prod_name) VALUES ('$prod_code','$prod_name')";
$result = mysql_query($sql);
echo "Thank you! Information entered. <a href=admin.php>Click Here</a>
";

} else{

?>

<form method="post" action="<?php echo $PHP_SELF?>">
Product Code:<input type="Text" name="prod_code"><br>
Product Name:<input type="Text" name="prod_name"><br>
<input type="Submit" name="submit" value="Enter information">
</form>

<?php
}
?>

UPDATE Multiple Tables Difficulties
I've been creating a stock update system that needs to be integrated with an existing database. To update the stock I need 2 tables updated in the same query (unless there is better way).

In one table, items_ordered, holds every single product that has been sold and has a field StockUpdated which holds a 1 or 0 depending on whether they have been stock counted already. This will stop future queries counting stock that has already been counted. i.e. the query will look and update each record that has a 0. So far the query is able to update this table successfully.....

Compare 2 Tables And Update One If A Match.
I have two tables "contact_tbl" and "address_tbl". I have a query that compares the email addresses between the two. If a match is found I need to update a specific field in "contact_tbl" with a value of 'yes'. My query is:

SELECT * FROM contact_tbl
INNER JOIN address_tbl
ON contact_tbl.email = address_tbl.email;

This works and I get a nice result set showing records where the email addresses match. I now need to update a field "status" in contact_tbl when there is a match. Have been tinkering with this for a while but not sure of the syntax and placement for the UPDATE code.

PROGRAM TO UPDATE DATA TABLES
I need to be able to DELETE selected record & LOAD DATA from a text file or Foxpro table, from a program that can run continuously.

I've tried Foxpro, but FoxPro views are too slow. I have also tried issuing these command from Foxpro with an ODBC connection established, but that does not work at all.

The object is to remove all records for a member and replace these records with records from a new file.

Each transaction will be up to 50,000 records.

I need to execute 2 commands:
DELETE FROM parts WHERE parts.member_id="xxx"
and
LOAD DATA INFILE 'd:/xxx.txt' INTO TABLE parts

Can't Update Records When Using Linked Tables In Access
I have a linked table to MySQL 5.0 through MS Access 2003 that utilizes a timestamp field in order to prevent the #Deleted signature happening everytime I create a new record. However, when I attempt to update a previous record I receive the error message: "Reserved error (-7776)" and am subsequently prevented from updating any records. Please note, there are no errors when creating new records, only when I attempt to update an existing one. However, if I remove the timestamp field, updates occur without error. Has anyone else encountered this issue? How might I rectify it?

Linking Asp.net And Mysql
has anyone used both odbc and .net providers such as ByteFX and
MySQLDriverCS? Is there a great difference in speed?

Linking With SQLBase
As a company, we are currently looking inot replacing our current Paradox (Yes some people do still use it) with MySQL and a Visual Basic 6/NET front-end.

However, we also use a rather large database run on Gupta SQLBase. Does anyone know if it is relatively easy and pain free to link MySQL with SQLBase?

Linking MySQL To MS SQL
I have a table in a Microsoft SQL Server database that I need to access from a MySQL database. Can I make a symbolic link between the two? I can't just import the data because it's something that gets regularly updated, but I need to work with it in MySQL.

Linking Databases
is it possible to link databases within mysql? I have a access =
database that I need to import into mysql this db consists of 4 other =
dbs linked together sharing a common switchboard. Can I link the tables =
in one db to tables in another db?

Linking To Other Databases
In Access i can link across multiple databases.

I can link to an Oracle database and run queries and local make tables.

Can I do this in MySQL?

Linking Databases
is it possible to link databases within mysql? I have a access = database that I need to import into mysql this db consists of 4 other = dbs linked together sharing a common switchboard. Can I link the tables = in one db to tables in another db?

Linking To Access
Is there a way to create a database which will link and stay linked to an Access database?

Linking Databases
is it possible to link databases within mysql? I have a access database
that I need to import into mysql this db consists of 4 other dbs linked
together sharing a common switchboard. Can I link the tables in one db to
tables in another db?

Linking Indexes
I have two tables...

tbl_one
id two_id info_a info_b
tbl_two
id info_c

And what I want to do is link `two_id`, an index to the `id` field in `tbl_two`. Then I basically want to be able to display data (specifically `info_c`) by referring to the `two_id` field. What would be the easiest way to achieve this?

Linking An Echo
i have this messaging script that i use on a site and i added on the front page when the user logs in a box that says the last message received was on and i got an echo date.is there a way to link that date in the echo tag to the message?

Linking Telecom
I would like to know what technology(s) would enable a user to dial a phone number, then dial an "extension" number that retrieves data from a database and speaks the data back to the caller. An example of what I am describing is when you call an airline, dial the flight number, and you get a real-time update of that plane's progress.

Linking To A Database
Newbie question: I want to link to table versus doing an import of that table. Is there a way to do this? I find that I can only do an import of data using the Import/Export Wizard

Linking Data
I have two tables that I am trying to link/join. One is a simple names table with each row identified by an id number the other is a functions table that contains id numbers related to certain functions as follows: nChairmanId, nSecretaryId, nTreasuretId, etc. and each of the values in the row are from the names table . What I want to do is join or link the two tables. I want to select all the rows from the function table and associate the value that is associated with a function with the actual name of the person (not the id number).

Linking Access To MySQL
Is there a way to link my Access database on my home computer to the MySQL database on my remote website, so that when I change something in Access, it changes it on the remote MySQL database automatically?

Linking To External Database.
Can anyone point me in the right direction.

I am looking to have one single database to manage nothing but User ID, Password and Permissions - we will call this database A.

I then have 6 (B - G)different databases which all have a Users table for ID's and Passwords. I want to have the database look to the A database for login information by somehow linking the backend of the database to DB A. rather than its own local table Users.

I have read that foreign keys come into place, however my 6 databases B - G are all MyISAM table structure rather than InnoDB.

Is there a good read somewhere that covers this? I tried doing some searches but as I am new to MySQL I think I am looking up the wrong terms. Screach.....the sound of your world coming to an end at the sight of the dreaded BSOD!

DYNAMIC TABLE LINKING
I have two tables;

CREATE TABLE `s1` (
`product_id` int(11) NOT NULL default '0',
`product_sku` varchar(25) NOT NULL default '',
PRIMARY KEY (`product_id`)
) TYPE=MyISAM

CREATE TABLE `s2` (
`product_sku` varchar(25) NOT NULL default '',
`product_price` decimal(8,2) NOT NULL default '0.00',
PRIMARY KEY (`product_sku`)
) TYPE=MyISAM

I need to create a third table that links the product_price to product_id and dynamically updates when table s2 changes.

I tried the following but got errors.

CREATE VIEW s3 AS
SELECT product_id,
product_sku,
product_price
FROM s1, s2 WHERE s1.product_sku = s2.product_sku

Is it possible to link product_price to product_id?