Update Query

Complex Query - UPDATE Within UPDATE?
Edit: Before anyone leaves this thread, don't be put off by the regular expressions! They are not the problem, so please stay and read.

OK, this query has got my head spinning. I am basically creating a query that goes through each product in a table to update the stock for that particular item with that particular size (i.e. I am talking about shoes - different models and each model has different sizes (uk kids 12 -> uk 11).

With each shoe it does (or is meant to do) the following:
1. The PHP script that runs the query is looping through every size outside of the query
2. So for each of these sizes it checks to see whether the product it is currently on matches the size it is on
3. When it finds the size it is on, it then deducts the correct number of units from the stock table
4. The final WHERE clause makes sure this subquery inside the UPDATE only happens when the StockUpdated field of the Product table equals 0 (in other words, the stock hasn't been counted before)

Basically what I need to do, is first to make sure what I currently have got does the above correctly but also I need the query to UPDATE the StockUpdated field to 1 only when it has been updated successfully. How could I do this? Unfortunately I cannot just add an extra update entry to the end of the query as this would update the StockUpdated field regardless of whether it has been properly counted or not.

Here is the query I have so far (with a little simple PHP around it doing the loop):


PHP

$shoesizes = array(1 => 'ukk12','ukk13','uk1','uk2','uk3','uk4','uk5','uk6','uk7','uk8','uk9','uk10','uk11');
    $numshoesizes = count($shoesizes);
    
    for($i = 1; $i < $numshoesizes; $i++) {
        $stockupdate = "
        UPDATE heelys_stock,items_ordered SET heelys_stock.size_".$shoesizes[$i]." =
            (SELECT
                CASE
                WHEN SUBSTRING_INDEX(items_ordered.Product,',',-1) REGEXP '( )?( )?(Kids)?( )?( )?(UK)?( )?( )?(Kids)?( )?( )?[^0-9]12( )?(' -- if UK Kids 12
                THEN heelys_stock.size_ukk12 - (items_ordered.Amount/items_ordered.Price)
                WHEN SUBSTRING_INDEX(items_ordered.Product,',',-1) REGEXP '( )?( )?(Kids)?( )?( )?(UK)?( )?( )?(Kids)?( )?( )?[^0-9]13( )?(' -- if UK Kids 13
                THEN heelys_stock.size_ukk13 - (items_ordered.Amount/items_ordered.Price)
                WHEN SUBSTRING_INDEX(items_ordered.Product,',',-1) REGEXP '( )?(UK)?( )?[^0-9]1( )?(' -- if UK 1
                THEN heelys_stock.size_uk1 - (items_ordered.Amount/items_ordered.Price)
                WHEN SUBSTRING_INDEX(items_ordered.Product,',',-1) REGEXP '( )?(UK)?( )?[^0-9]2( )?(' -- if UK 2
                THEN heelys_stock.size_uk2 - (items_ordered.Amount/items_ordered.Price)
                WHEN SUBSTRING_INDEX(items_ordered.Product,',',-1) REGEXP '( )?(UK)?( )?[^0-9]3( )?(' -- if UK 3
                THEN heelys_stock.size_uk3 - (items_ordered.Amount/items_ordered.Price)
                WHEN SUBSTRING_INDEX(items_ordered.Product,',',-1) REGEXP '( )?(UK)?( )?[^0-9]4( )?(' -- if UK 4
                THEN heelys_stock.size_uk4 - (items_ordered.Amount/items_ordered.Price)
                WHEN SUBSTRING_INDEX(items_ordered.Product,',',-1) REGEXP '( )?(UK)?( )?[^0-9]5( )?(' -- if UK 5
                THEN heelys_stock.size_uk5 - (items_ordered.Amount/items_ordered.Price)
                WHEN SUBSTRING_INDEX(items_ordered.Product,',',-1) REGEXP '( )?(UK)?( )?[^0-9]6( )?(' -- if UK 6
                THEN heelys_stock.size_uk6 - (items_ordered.Amount/items_ordered.Price)
                WHEN SUBSTRING_INDEX(items_ordered.Product,',',-1) REGEXP '( )?(UK)?( )?[^0-9]7( )?(' -- if UK 7
                THEN heelys_stock.size_uk7 - (items_ordered.Amount/items_ordered.Price)
                WHEN SUBSTRING_INDEX(items_ordered.Product,',',-1) REGEXP '( )?(UK)?( )?[^0-9]8( )?(' -- if UK 8
                THEN heelys_stock.size_uk8 - (items_ordered.Amount/items_ordered.Price)
                WHEN SUBSTRING_INDEX(items_ordered.Product,',',-1) REGEXP '( )?(UK)?( )?[^0-9]9( )?(' -- if UK 9
                THEN heelys_stock.size_uk9 - (items_ordered.Amount/items_ordered.Price)
                WHEN SUBSTRING_INDEX(items_ordered.Product,',',-1) REGEXP '( )?(UK)?( )?[^0-9]10( )?(' -- if UK 10
                THEN heelys_stock.size_uk10 - (items_ordered.Amount/items_ordered.Price)
                WHEN SUBSTRING_INDEX(items_ordered.Product,',',-1) REGEXP '( )?(UK)?( )?[^0-9]11( )?(' -- if UK 11
                THEN heelys_stock.size_uk11 - (items_ordered.Amount/items_ordered.Price)
            FROM items_ordered WHERE items_ordered.StockUpdated = 0)
                
            WHERE (heelys_stock.id = (SELECT heelys_stock.id FROM heelys_stock,heelys_shoe WHERE SUBSTRING_INDEX(items_ordered.Product,',',1) = heelys_shoe.full_shoe_name))
        , items_ordered.StockUpdated = 1" // at the moment this last update of the items_ordered table happens to every record!!! even if the other part of query fails

        
        // update stock for size $i
        mysql_query($stockupdate);
    }

Hope someone can see how I can do this? I've been working on this query for 2 or 3 hours now and I've been making reasonable progress but now I am really stumped.

---

Update Query
I have a query question. I want to update a database that contains ips like 90.30.100.xxx. I only want to modify the third numer (100). Does anybody know how can i do this?

ex: i want to modify all ips from 90.30.100.xxx to 90.30.101.xxx. Notice if i had 90.30.100.100 i'd like to become 90.30.101.100

---

Update Query
I'm selling tickets and I need to be able to reduce the total number of tickets when one is sold. I have a table with the total number of tickets stored in a field and and a field with the quantity sold in a particular purchase. I think this is a fairly simple update query can anybody help get me started?

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Update IN Query
Code:

UPDATE SET COUNT=COUNT+1 IN WHERE SELECT
sponsor,mstatus, count( username ) from customer Group by
sponsor DESC Having count( username ) = 2

---

Update Query
I am trying to do a custom sortup/sortdown function in php on a mySQL basis. Now I got that prob:

I got a table, that has a "sort"-field for each data like that:

data | sort
a | 1
b | 2
c | 3
d | 4
e | 5

The output of the data is ORDER BY sort ASC. Now I want the users allow to change the "ranking"/"sorting" themselves that way, that they click e.g. on sort entry d one up.

So the new table should look like that:

a | 1
b | 2
c | 4
d | 3
e | 5

Does anyone know how to do that in one or only a few mySQL queries? I mean I could read out the whole table and then do a php-loop giving new sort-numbers to each data and then update every single data, but I guess there should be an easier way in mySQL. My prob is that I suck big time at mySQL

---

UPDATE Query
Select TransType FROM TransTypeMapping WHERE vTransType=”CANCEL”, into array[0]

For each record from MainTable where TransactionCode = TransType.array[0],
Find record[1] where record[0].Category=
record[1].Category and record[0].Units1 = record[1].Units1

Action: Set fields in MainTable, record[0].vCancel = T; record[0].vMatchingTransID = record[1].vTransID
Set record[1].vCancel = T; record[1].vMatchingTransID = record[0].vTransID

---

Update Query
I am using phpMyAdmin to update table rows where the short_descr field (text) contains no characters.
I can execute this:
SELECT * FROM download WHERE short_descr='';
But this gives me an error:
UPDATE download SET delete=1 WHERE short_descr='';

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Update Query
Code:

UPDATE users_tickets SET dateResponse=NOW() and Response='sgdgdsgdsfdsfds' WHERE ticketID='1'

i query the same database earlier in the code and it works fine. in phpmyadmin i tried editing it and it worked fine. this is the code phpmyadmin returns when you do it there
Code:

UPDATE `users_tickets` SET `Response` = 'mommy' WHERE `ticketID` =1 LIMIT 1 ;

---

Update Query
i need a query to change my customers_id number from an example
1000549 to 500600 and i made this query that doesn'work :

UPDATE customers SET customers_id = '50%' WHERE customers_id = '100%'

i need to change the first 3 digits from 100 to 50 and the other numbers stays the same.

---

Update Query
Here's my table set up:Code:

USERS user_id,firstname,lastname,tel,institution,email,username,password
BOOKS book_id, user_id*,created,author,subject,title,description
BOOKCHAPTERS chapter_id, book_id *
CHAPTERS chapter_id *, chapter_name, chapter_location

Im trying to update the chapter_name and chapter_location in the chapters table. The parameters I pass in seem to be ok, so I think it's the SQL update query below.
Have I done the update query correctly?Code:

update chapters c, bookchapters bc, books b set c.chapter_name = ?, c.chapter_location=? where b.book_id = ? and bc.book_id = b.book_id and c.chapter_id=? and c.chapter_id = bc.chapter_id;

---

Update Query
Can we update row when there is an empty field?
here is an example (attached):

How can I update the x?
Let's say x = 6

Like:
UPDATE table
SET [all_empty_fields]='x'
WHERE [field_before_that] ='5';

---

Update Query.
I have 2 tables.

BOOKCHAPTERS (book_id,chapter_id)

CHAPTERS(chapter_id,chapter_name,chapter_location)

I want to be able to update the name (chapter_name) of chapters given a book_id. The chapter_id for each book is simply and auto-incremented column.

I currently have the following queery which doesnt seem to work.

Code:


update chapters c, bookchapters bc set c.chapter_name = ?, c.chapter_location=? where bc.book_id = ? and c.chapter_id=? and bc.chapter_id = c.chapter_id;


Now I know you're gonna say 'What's the value of all the prepared values' but I just want to know if the syntax for the query is ok.

---

Slow Update Query
I have about 2000 update queries to do, which takes about 1 hr on 250,000 rows.
My table is getting kinda slow here is the query i am using
UPDATE nametable SET
sectionname = replace(sectionname,'".$oldsec."','".$sec."'),
categoryname = replace(categoryname,'".$oldcat."','".$cat."'), published=&#391;'
where sectionname='".$oldsec."'
and categoryname='".$oldcat."' ;

I am wondering if the same thing is possible with an insert... on duplicate key statement?

I cant seem to get the insert statement to work, but not even sure whether it is appropriate.

With this query I am basically finding and replacing some columns based upon another table (within the php script I am using)

---

Update Query Question
I want to update the col 'type' in one of my tables. I want to change the value from 4 to 5 in that col but the query i use below is not correct. Can anyone point me in the right direction?

Quote:

UPDATE &#55613;&#56984;'
SET type = &#395;'
WHERE type = &#394;'

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Stuck On Update Query
I am struggling with a SQL statement and hoped someone would be able to help

customer_depots
contacts

Each table contain fields called 'customer_depot_id' and 'address_id'.

What I want to do is update the address_id in the contacts table, with the value of the address_id in the customer_depots table, only where the customer_id values match in each table, AND the address_id in the contacts table is equal to zero.

Does this make sense?

So, update address_id in contacts,
where address_id in contacts = address_id in customer_depots
and address id in contacts = zero.

This is because a number of address_id's are missing from the contacts table, and I want to replace them with the correspondingvalue from the other table.

I have figured out a SELECT statement as shown below, but I need an UPDATE statement as explained above.

SELECT cd.ADDRESS_ID FROM customer_depots cd, contacts con WHERE con.CUSTOMER_DEPOT_ID = cd.CUSTOMER_DEPOT_ID AND con.ADDRESS_ID = 0

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Select And Update In One Query
My remoteurl table has 3 columns: id, hits and url.

PHP

UPDATE remoteurl SET hits=hits+1 WHERE id=2

SELECT url FROM remoteurl WHERE id=2

Instead of using two queries I want to use one query which could select url and update hits column. Is it possible?

---

Help Optimizing UPDATE Query
I have 1 query in my script that is taking waaaaay too much time.

Is there a way that I can speed up or optimize this query?

Right now the query is taking about 600+ seconds to update 500 rows.

The Query

PHP

$update_from_sas_postmeta = "UPDATE wp_postmeta, sas_postmetaSET wp_postmeta.meta_value = sas_postmeta.meta_valueWHERE wp_postmeta.post_id = sas_postmeta.post_idAND wp_postmeta.meta_key = sas_postmeta.meta_key";$update_from_sas_postmeta_result = mysql_query($update_from_sas_postmeta) or die("MySQL ERROR (update_from_sas_postmeta_result): ".mysql_error());

The Tables

CREATE TABLE `wp_postmeta` (
`meta_id` bigint(20) NOT NULL auto_increment,
`post_id` bigint(20) NOT NULL default &#390;',
`meta_key` varchar(255) default NULL,
`meta_value` longtext,
PRIMARY KEY (`meta_id`),
KEY `post_id` (`post_id`),
KEY `meta_key` (`meta_key`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=294705 ;

CREATE TABLE `sas_postmeta` (
`meta_id` bigint(20) NOT NULL auto_increment,
`post_id` bigint(20) NOT NULL default &#390;',
`meta_key` varchar(255) default NULL,
`meta_value` longtext,
PRIMARY KEY (`meta_id`),
KEY `post_id` (`post_id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;
Sample Data
2, 2, 'page_template', 'default'
3, 3, 'merchant_id', ?'
4, 3, 'merchant', 'SomethingSomething'
5, 3, 'link', 'http://www.website.com/link.html'
6, 3, 'thumbnail', 'http://www.website.com/thumbnail.jpg'

More Details
When the UPDATE query begins to run, the sas_postmeta table will have 500 records in it and the wp_postmeta table will have about 250,000 records in it.

---

Help With Mass Update Query
I have a field in my table (1000 records) called company_number. I've just been informed that all records that start with "1" should actually start with "0". So, for a record where compnay_number = 1000400 the number should actually be 01000400. Can anyone suggest how I would approach updating each record via one SQL statement?

SELECT *
FROM `myTable`
WHERE `company_number` LIKE '%100%'
... then what?

---

Update Value Directly In The Same Query
Is it possible to update a value directly, adding text to it, without getting it first, adding the text in php and then do the update.

for example:
value in field users: ",45,"

and then adding ,34, to the field directly by doing something like:
update table set users='users,34,'

so the value in the field afterwards will be ",45,,34,"?

---

Embed Sum() Within Update Query
I'm currently rewriting my website to work with MySql rather than MSSQL and have stumbled across a bit of a problem. Can anyone help?

To create a simple example of what I'm trying to achieve - I have 2 tables. I wish to populate the SCORE in TABLEA with a sum of all SCORES in TABLEB where the CODE matches. TABLEA has a single row for each CODE but TABLEB may contain multiple rows (for different weeks).....

---

Maximum Query Update?
Is there a maximum amount of fields that you can update at once as run from php the following works:

UPDATE `members` SET
`firstname` = '$formfirstname',
`surname` = '$formsurname',
`usrlevel` = '$formusrlevel',
`usrname` = '$formusrname',
`grade` = '$formgrade',
`phone` = '$formphone',
`email` = '$formemail',
`comments` = '$formcomments'
WHERE `ID` = '1' LIMIT 1 ;


Yet the following does not and it only has one extra field to update:

UPDATE `members` SET
`firstname` = '$formfirstname',
`surname` = '$formsurname',
`usrlevel` = '$formusrlevel',
`usrname` = '$formusrname',
`grade` = '$formgrade',
`phone` = '$formphone',
`email` = '$formemail',
`drivingdate` = '$formdrivingdate'
`comments` = '$formcomments'
WHERE `ID` = '1' LIMIT 1 ;

---

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.

---

SELECT And UPDATE In One Query
Does there exist a way to do a SELECT and an UPDATE in one query?

What I am trying to do is building a shop that´s articles are saved in a mySQL db and I wanna count the impressions of each article that is shown by e.g. a search function.

would be something like that:

article no | text | category | impressions
1 | aaaa| 1 |1
2 | bdsd| 2 |1
3 | aaaa| 2 |1
4 | bdsd| 3 |1

and so on

now I want e.g. to search for all articles that are in category 2 AND add +1 to the impressions cell of those articles that are found.

I hope it´s understandable what I am trying to do. I guess it should be possible, but since I only so far used very simple queries I am not sure how to?

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Multiple Update In 1 Query
I am trying to do the following using PHP and Mysql:

$sql="
UPDATE records set appear_order='2' WHERE id='19';
UPDATE records set appear_order='3' WHERE id='17';
UPDATE records set appear_order='4' WHERE id='18';
UPDATE records set appear_order='5' WHERE id='20';
UPDATE records set appear_order='6' WHERE id='16';
";

I am getting the following error message:
" Cannot update records: 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 'UPDATE records set appear_order='2' WHERE id='19'; UPDATE recor"

I don't know why this isn't working.
when I paste this query to phpMyAdmin (I hope you guys know phpMyAdmin) - it works.
somehow using a PHP code it does'nt - I get that error message.
did anyone every come across this error and knows how to overcome it?

---

Msql Update Query
I am trying to tie a mySQL UPDATE query to a variable in php to determine whether or not the query updated any rows or not. All it returns is whether or not the query was successfully executed.
I have tried using the mysql_affected_rows() command, but as there are multiple users performing the same action this could lead to ambiguous results.

---

ON DUPLICATE KEY UPDATE And Query Cache
After bludgeoning my head against the table for a bit, I figures out what the problem was that had been plaguing me.

When using a INSERT INTO ... ON DUPLICATE KEY UPDATE ...
statemtent, it seemed like the update was not taking place.
After viewing the webpage in question, (and doing the manual select statement), the old data was being returned.

I couldn't figure out why, until FINALLY, I added 'RESET QUERY CACHE' manually after the statement. Then the correct updated info was returned.

Apparently the query cache is not flushed after using the above ON DUPLICATE KEY UPDATE statement, like it does with other insert or updates.

What do I do now. Just not use that statement? Id like to avoid locking tables if possible. And I cant have the website showing the outdated info.

---

Update Query Not Working: SQL Error
i'm trying to do an update such as ...

---

Slight Problem With Update Query, Please Help!
I have the following query, which I can't seem to make work. I want to count the values of one table and insert them into the mema table. How can I do this.
Here is the query:
Quote:
mysql_query("UPDATE mema set usalistings='(SELECT count(mem) FROM mema, articles WHERE mema.ided=articles.mem AND mem!=0 group by mem)'");

---

Quick And Easy Update Query? Or Not Possible?
I need to do a global change to a column in my database. I know this is poor planning on my part, but I recently made a change to all of my image extensions for speed purposes.

I have a column called thumbnail_path, and every value ends with .GIF. I would like to change them to all end in .JPG. How can I do this? Is this even possible to do in one update query? or will I need to select, parse w/ php and then update?

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URGENT: Please Help Me With My ON DUPLICATE KEY UPDATE Query
Could you please help me do this quickly.

I have a query:

Quote:

mysql_query("INSERT INTO products (id, title, brand) SELECT id, title, brand FROM prodse WHERE approved=1 ON DUPLICATE KEY UPDATE groupname=a")

What I need it to do is that whne title and brand matches, it is then a duplicate listing. I have set up the unique key for this. When a duplicate listing is found it will then change the groupname value from "1" and update it with "a".

When it then finds the next duplicate listing that has the same title and brand as the duplicate listing that had it's groupname changes to "a", I need it to be change to "b" this time.

So I now have two listings that have a groupname of "a" and "b".

Now when there is more duplicate listings that have the same title and brand as "a" and "b", I now need the groupname to be updated to the actual listings id and not use "a", "b", "c", etc...

How can I do that.

I know how I can do the first one so that it updates to 8, but then how would I do the 2nd and 3rd ones.

Please help, I have to do this urgent as my database is really slow and it is damaging my site as it is taking about a minute or so to do each query.

Also, I would prefer it if it could be done in one single query. I can also use variables in the query and if statements plus other php like

Quote:

mysql_query("INSERT INTO products (id, title, brand) SELECT id, title, brand FROM prodse WHERE approved=1 ON DUPLICATE KEY UPDATE groupname=$groupname")

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QUERY One Table And Update Another In ONE Statement?
ZIP_CODE:
zip_code
latitude
longitude

customers:
customer_id
...
zip_code
latitude
longitude

The lat and long in the customers table is blank. I want to lookup customers' zip code in the ZIP_CODE, get the related lat & long and update the customers table with that information. The result being that after this query is run, the customers table now has lat & long data.

---

How To Update Multiple Rows With One Query?
I am using PHP/MySQL and need to update 7 rows with one query. Can someone tell me how to do the following so it will update the row for each day of the week? (This obviously doesn't work)

$sql = "UPDATE business_hours SET hours='$sunday' WHERE id='$id' AND day='sunday' AND SET hours='$monday' WHERE id='$id' AND day='monday'";

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Optimize UPDATE Query With Subquery
Users(users_id,...,pictures_average_grade) - 5,000 rows
Pictures(..,average_grade,users_fk) - 50,000 rows

One User can have many pictures. Each picture have average_grade which is being continually changed. Once a day i would like to compute for each user average grade of his pictures and update column. users.pictures_average_grade. I wrote the following query:
UPDATE users AS u SET u.pictures_average_grade= (SELECT AVG(average_grade) FROM pictures WHERE users_fk=u.users_id).

The problem is that the query is being processing very long (after 15 minutes i resing and stop the query).

---

Update A Set Of Records In One Single Query
My records contain a position, from 1 to n. This position is not the primary key.
In normal conditions, the position of this records should be as follows:
1, 2, 3, 4, 5, 6, 7, 8, 9 . etc...

One of my utitities is meant to check the consistency of the table -
one of the things it has to do is scan the table as follows:

SELECT position FROM employe_records WHERE employe_id = ? ORDER BY position

From the result of this query I verify each entry (JDBC) one by one, looking for inconsistancies. In a for() loop I look at the value of position and check that they start from 1 and are incremented by one for each record.

At the first inconsistency I come accross I want to run a query to update the records so it is consistant again - it is something like this:

UPDATE employe_records SET position = updatedValue FROM
employe_records WHERE employe_id = ? ORDER BY position

This is not valid query of course - my question is what should my query look like?! How can I make 'updatedValue' incremented by one automatically so each of the records are updated from 1 to n.

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Convert UPDATE Query To INSERT
I have an SQL dump file of a sql database that was generated with the UPDATE export type. The file contains code for generating the various tables inside the database along with the UPDATE lines for the table data.

Is there a way to process the dump file such that all of the UPDATE instructions are converted to INSERT instructions? I have to restore the database from scratch so there are no existing table rows to update.

---

How Can I Update A Set Of Records In One Single Query
My records contain a position, from 1 to n. This position is not the primary key.
In normal conditions, the position of this records should be as follows:

1, 2, 3, 4, 5, 6, 7, 8, 9 .etc...

One of my utitities is meant to check the consistency of the table - one of the things it has to do is scan the table as follows:

SELECT position FROM employe_records WHERE employe_id = ? ORDER BY position

From the result of this query I verify each entry (JDBC) one by one, looking for inconsistancies. In a for() loop I look at the value of position and check that they start from 1 and are incremented by one for each record.

At the first inconsistency I come accross I want to run a query to update the records so it is consistant again - it is something like this:

UPDATE employe_records SET position = updatedValue FROM
employe_records WHERE employe_id = ? ORDER BY position

This is not valid query of course - my question is what should my query look like?! How can I make 'updatedValue' incremented by one automatically so each of the records are updated from 1 to n.

---

How Do I Update Multiple Rows In One Query?
How do I update multiple rows in 1 query? I try not to do a loop of update queries.

---

Insert And Update In The Same Query (mySQL-3.23.58)
I am using mySQL-3.23.58 at my school. Since triggers are not available is there a way to do an insert and an update in one query?

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Update Query Where Values Will Come From Other Table
I'm creating an update query which the value will come from another table.

I have here my current query which unfortunately makes the system hangs. Probably because of the query itself is not properly coded.

update boxes b inner join messages m
on b.ctnnumber = m.ctnno
set b.consigneerecv = m.CName,
b.consigneerecvdate = m.DateRcv,
b.phrecventered = "Y",
b.PhilStatus = "delivered",
b.prevreleasestatus = b.releasestatus,
b.releasestatus = "delivered",
b.PhilStatusDate = m.smsrecvdate,
b.phdelprice = "0.00",
b.phdelamt = "0.00",
b.recvrelation = m.Relation,
b.APRecventered = m.smsRecvDate
where b.consigneerecv = ''
or b.consigneerecv = 'NA'
or b.consigneerecv is null;

I'm thinking revising it so that it will not cause the system to hang but I don't know how. Guys please help me with this one. I also have this another idea which probably will not work. My idea was something like this:

Update table1 set table1.column1 = (select table2.column1 where table2.column1 = table1.column1),
table1.column2 = (select table2.column2 where table2.column1 = table1.column1), .....

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Update Query On 14000 Records
Haing moved a large site from asp and access to php and mysql, I would like to change the way of my fields is delimited.
Currently, the field contains user selection seperated by commas
e.g. selection1, selection2, selection3
I would like to update this field on every row in the table and change all commas to pipes
e.g. selection1|selection2|selection3
The table contains over 14000 records, and the field in question can contain anything up to 30 selections.
Is this possible to do?

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Slight Problem With Update Query
I have the following query, which I can't seem to make work. I want to count the values of one table and insert them into the mema table. How can I do this.

Here is the query:
Quote: mysql_query("UPDATE mema set usalistings='(SELECT count(mem) FROM mema, articles WHERE mema.ided=articles.mem AND mem!=0 group by mem)'")

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Update Query Fails In Previous MySQL Version
The following query runs fine on my development server (v4.0.17):

"update user inner join events on user.username = events.username
set user.LastMessageDate = '$current_time'
where events.text_sent=0 and events.to_mobile >0 and events.GMT_event_send_time<='$send_time'"

but fails on my production server running v3.23.56.

Anyone any ideas why it doesn't run and what I need to do to fix it?

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Running Multiple Update Querries In Query Browser
I am trying to run multiple update statements together from the MySQL Query Browser. For example:

update table1 set field1 = "123", field2 = '456' where rowid = 'abc'
update table1 set field1 = "321", field2 = '654' where rowid = 'efg'

I can run them one at a time, but I cannot run multiple updates at the same time. I have 1100 of them to run, so I don't want run them individually.

In M$ SQL I can just put a ; or GO at the end of each line to seperate it from the next. How can I do this in MySQL?

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Query (select/insert/update)Slows When Table Grows
I have a mysql database where tables are very simple. An example table will look like this:

create table myTable(
token varchar(255) not null primary key,
token_count int default 1,
frequency int
) type=INNODB;

A java program populates this table. The program reads from files (in batch mode) and inserts into myTable with following logic:

(1) See if the String to be inserted is present in myTable.(Uses SELECT)
(2) If not present the insert into myTable (uses INSERT)
(3) If yes update the table after adding the current frequency (USES UPDATE)

After processing each file issue COMMIT.

This goes on well for some time - but after the Table grows over 100,000 rows the process slows down considerably. The Strings I 'm handling is very large and I'm not sure how well Mysql behaves with very large String as primary Key.

My select and update statements are all based upon primary key(token in this case) - so question of setting index doesn't arise. Even then I have set index on token field - but it has degraded the performance. Also I have set the query_cache_size to 1MB even then it is not enhancing the performance.

A sample file has almost 30,00 to 50,000 lines. Each line having a string + blank + frequency.

After processing first few files - the Java program takes large time to process a single file - and subsequently the processing time increases exponentially.(as the tabel grows in size it slows down).

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&quot;update If Not Exit Insert&quot; Query?
is it possible to do query "update record. if not exist, do insert" in mysql?

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Update Replication, Force Update
Recently an error in the db on my master caused the slave to fail. I noticed this after a few days when I looked at the status and it said "Slave_SQL_Running: No". After looking further I saw what the error was on the master.

What is the best method of re-synching the databases?

Is there a command to force a re-replication or synch of the dbs? Would you delete the slave's db and update over? In this case, is there a command to pull the data down from the master?

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Unable To Update - Have Update Priveledge
I've been granded update priveledge to tables in a few databases on our server:

Select_priv ,Insert_priv, Update_priv, Delete_priv, Create_priv, Drop_priv, References_priv, Index_priv, Alter_priv, Create_tmp_table_priv, and Lock_tables_priv are all set to 'Y' for a selected database.

I can connnect and read the data and data definitions just fine.  I cannot insert, update, delete, create, or alter any table in this database.

Our admin worked for a couple of hours yesterday trying to resolve the issue, but no joy.  I've googled for this problem and the most relavent posts I've found were problems related with users not being able to connect. I can connect and I can read, I just can't do any of the other priviledges.

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ON DUPLICATE KEY UPDATE - Don't Have A Key But Want To Update
This may seem like more of a PHP question but I will come onto the MySQL part in a minute.

Basically I have a PHP script that lets users upload 2 different CSV files to different tables. The problem I have is that sometimes these CSV files are updated and then need to be reimported into the database through the script. I have made this script totally generic so that when you change the table that is being entered to the rest of the script will alter itself to import the correct CSV to that table. But a problem arises when I have a CSV file that contains each product sold and the shopper who bought the product (so the shopperID may appear in more than 1 row) - however this file does not have a unique id for each row meaning that when I use an INSERT INTO with a ON DUPLICATE KEY UPDATE... it will just insert more rows instead of updating rows because there is now key in the table.

The format of the table is like this (with some example data to show you more clearly):

+-----------+-------------+---------+------+--------+------+
| ShopperID | Product Code | Product | Price | Amount | Units |
+-----------+-------------+---------+------+--------+------+
546733 1315 prod 1 64.00 64.00 0
546733 1316 prod 2 43.99 43.99 0

OK just ignore the last 2 fields - that is a problem with the old system there was which does not add the units up right.

Anyway basically I might have the same shopper ordering 2 things which will come up on different rows - I have 3 things I cannot do:

1. I can't make the ShopperID field the PRIMARY KEY because I have many times where there are 2 rows with the same shopper
2. And I cannot just do an UPDATE when it gets to a duplicate entry because it will overwrite every time it gets to a shopper that already exists.
3. I don't want to add a unique primary key to the CSV as this will mean that the system I am creating loses its ability of being automatic because the person (an admin) that uploads the file will have to make sure that it has that extra field which is auto incrementing.

Does anyone have any ideas on how I can get round this?

Here is my PHP function which contains the query:
PHP

// this function for insert data to csv
function makeINSERTS($text, $table, $tablefields, $correctcsv){
    $insert = array(); //make array for hold data insert
    $i = 0;
    $success = true;
    
    while(list($key, $val) = each($text)){
        // Insert the data
        $insert[$i] = "INSERT INTO ".$table."  VALUES('";
        $insert[$i] .= implode("','", $val);
        $insert[$i] .= "') ON DUPLICATE KEY UPDATE ";
        foreach($tablefields as $k=>$field){
            $insert[$i] .= "`$field`='{$val[$k]}',";
        }
        $insert[$i] = substr($insert[$i],0,strlen($insert[$i])-1);
        // echo $insert[$i].'<p></p>'
        $result = mysql_query($insert[$i]);
        if(!$result) {
            echo 'FAILURE to insert/update any or all of the database form uploaded CSV!<br />'
            $success = false;
            die('Query failed: ' . mysql_error().'<br />');
        }
        $i++;
    }
    if($success == true && $correctcsv == true){
        echo 'SUCCESS in uploading the CSV file to the database!<br />'
    }
    else {
    }
return $insert;
}

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Update Queries Do Not Always Update
We are running a MySQL database using PHP to create html pages and forms to update and add information to the db. Sometimes the update query works, sometimes it doesn't - or at least, not permanently. A new record may be added, but five minutes later it has sometimes, but not always, mysteriously disappeared.

Where should I look for a solution? Is there a cache that MySQL creates that may be being accessed unwittingly?

We are using the standard php and MySQL versions that come as standard on a Mac OS X Tiger 10.4.7 server. The browser we are using is Firefox 2.0.4.

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