MYSQL :: Update Based On Another Table

UPDATE Based On Value In Another Table
How do I update a table to remove orphaned references to a second table? I've deleted rows in the second table, which has a unique auto_increment key. The first table now has references to keys that no longer exist. I need to update the first table, setting the value to NULL where the referenced key no longer exists. Something like:

UPDATE table1 SET table2ID = NULL WHERE table1.table2ID NOT FOUND IN
table2.ID;

The NOT FOUND IN isn't SQL, of course, but I'm not sure what should go there.

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Update Based On Row Offset From Begining Of Table?
Is there a way to update a table row based on its offset from the begining of the table. I want to be able to update based on a rows position when its brought up when all rows in a table are selected. ie; select * from table.

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Update Column Data Based On Another Table
I've got 2 tables: 'city' that list over 2000000 rows and 'profile' where each row are associated to a city.

What I want to do is to update cities popularities based on profile without having to scan the hole 2000000 rows of 'city'.

So is it possible to make those 2 query in one so I do not need to do a php loop:

SELECT city, COUNT(city) FROM profile GROUP BY city;

then

UPDATE city SET popularity = COUNT(city) WHERE city.city_id = profile.city

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Update Table Based On Email In Another Table
I'm having trouble updating the entries from a table. The situation is as follows:

Customer table contains:
1) customer_email_address
2) customer_newsletter (value 0 or 1)

Visitor table contains:
1) email

The visitor table contains email addresses from customers that have signed up through another system.

I would like to update the customer table and set customer_newsletter to 1 where customer_email_address matches email from the visitor table.

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Update One Col From Another Col Based On Primary Key
I have a table which stores referral URLs in column 'ref' and primary key of the table is 'clid' I have added another column which will store the name of the search engine referral by the name 'SearchEngine'. Now what I want to do is to avoid PHP processing and write a mysql query as follow,

Code:

UPDATE clicks
SET SearchEngine=(
SELECT (
CASE WHEN (LOCATE('.google.',ref)!=0) THEN 'Google'
WHEN (LOCATE('.yahoo.',ref)!=0) THEN 'Yahoo'
WHEN (LOCATE('.msn.',ref)!=0) THEN 'Microsoft'
WHEN (LOCATE('.microsoft.',ref)!=0) THEN 'Microsoft')
WHEN (LOCATE('.live.',ref)!=0) THEN 'Microsoft')
ELSE 'Others' END
),
@tmpo:=clid
FROM clicks WHERE ref!=''
)
WHERE (clid=@tmpo);

but it gives me following error,

Code:

ERROR 1064 (42000): 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 ') WHEN (LOCATE('.live.',ref)!=0) THEN 'Microsoft') ELSE 'Others' END),clid:=@tm' at line 1

Basically i want to parse referral url, decide the search engine name and then store its name in the new column based on primary key so that correct values are stored in correct record.

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Update One Column Based On Another
I have two tables. One set up like this:

id item_id group_id userid outcome settled

The second is

userid yes no

I would like to look at the first table and find all rows that have a specific group_id, then update the userid yes/no based on the outcome on that row. Outcome Y then add 1 to the yes column of that userid, outcome N then add 1 to the no column of the userid. Is this possible in one SQL statement?

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How To Delete From 1 Table Some Rows Based On Match Results In 2nd Table?
How to delete from TABLE-1 all rows with indexes "i" that match to index j=2 from TABLE-2?

TABLE 1:
+---+------+
| i | name |
+---+------+
| 1 | item1 |
| 1 | item2 |
| 7 | item3 | <-- delete all rows with i=5,6,7
| 6 | item4 | <-- delete
| 5 | item5 | <-- delete
| 5 | item6 | <-- delete
| 7 | item7 | <-- delete
+---+------+

TABLE 2:
+---+---+------+
| j | i | name |
+---+---+------+
| 1 | 1 | item1 |
| 1 | 3 | item2 |
| 1 | 2 | item3 |
| 2 | 5 | item4 | <---- j=2 => i=5
| 2 | 6 | item5 | <---- j=2 => i=6
| 2 | 7 | item6 | <---- j=2 => i=7
| 3 | 8 | item7 |
+---+---+------+

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Selecting Data Form One Table That Is Based On An Entry In Another Table
This is the code I am using:

***********
SELECT co_name,city,country,logo_small FROM $info WHERE $info.co_name=$categories.co_name AND WHERE $categories.everyday_wear='y' ORDER BY co_name ASC
***********

I am using a while loop in php to loop through all of the records but no records are being displayed. What am I missing? Do I need to use a JOIN statement?

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Updating Rows In Table B Based On Related Field In Table A
Ver 4.1.8-standard for apple-darwin7.6.0 on powerpc (Official MySQL-standard binary)

I am trying to do some data migration based. I have several tables that contain our legacy pkey field and I want to update the tables with new ID's.
I need to do this several times and have tried it several ways to no avail.

Table A
---------
companyID int(10) pKey
legacyID int(10) old legacy pkey

Table B
---------
bAID int(10) pkey
companyID int(10)
legacyID int(10)

Table A has values for both companyID (unique key) and legacyID.
Table B has values for bAID (unique key) and legacyID but companyID is empty.

I need to update tableB.companyID with tableA.companyID based on tableb.cSerialID to tablea.cSerialID relationship.

I need a query that will update ALL rows.

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Updating Table Based Upon Matching Field In Second Table
I have a database of books that was originally created as a flat file.
Each record has a number of fields, including the authors name. I'm
trying to convert the database to something a little more efficient.
I've created a new table (called Authors) of unique authors names and
assigned each one a unique ID. I've added a new field in the original
table (called Books) for the author's ID. Now, I need to update the
original table with the author ID from the Author's table.

Something like this:

UPDATE Books SET AuthorID = Authors.AuthorID WHERE AuthorName =
Authors.AuthorName

This obviously doesn't work. Any assistance on how to forumulate this
query (or, if I'm headed down the wrong path, the correct way to do this
operation) greatly appreciated.

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Select Data From 1 Table Based On Criteria From Another Table
is it possible to select all the data in one table based on a criteria from another table?

for instance i want to select all the therapist from massage_therapist WHERE massage_schedule.finish > 0.
i don't want merged results. i just need to list all therapist based on the where criteria from a different table.

these two tables have the therapist_id in common.

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How Do I Generate Results Based On Totals Of Another Table But For 1st Table?
This is what I want to do:

1- I have Two tables: polls_created and votes

2- Table polls_created is like:

poll_id
owner
poll_subject

3- Table votes has the votes issued for a given poll, like this:

vote_id
poll_id
vote
vote_date

So what I need to do is to look at these 2 Tables and generate results based on values of these 2 tables.

How do I then generate this result:

MySQL Code:
SELECT poll_id, owner, poll_subject, COUNT(vote_id) AS number_of_votes FROM polls_created, votes
"sorted by polls that have gotten most number of Votes"

Of course "sorted by polls that have gotten most number of Votes" is not real MySQL

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Selecting From A Table Based On Info In Another Table
Essentially this is what i want to do. I have two Tables,

Table A- has the field "id" which is the primary key
Table B- has the field "id" which is the primary key

Select * from tableA where Table A.id is not in tableB.id

How can i form a statement that will accomplish the above.

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Selecting From One Table Based On Another?
I have a table for products

and another table for the type of product it is like this:

I need this is be in a seperate table because one product can be several different types like ring,band,wedding,three-stone,etc.

but how can I then select a product based on criteria from the types table

say I wanted to select all products that are type = "Band" and type != "Fancy" ?

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Table Based On Info In Another Table
Essentially this is what i want to do. I have two Tables,

Table A- has the field "id" which is the primary key
Table B- has the field "id" which is the primary key

Select * from tableA where Table A.id is not in tableB.id

How can i form a statement that will accomplish the above.

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Updating A Table Based On The Value In Another Table In Ver 3.23.54-Max
I am trying to update fields in table SOLAR_SYSTEM based on the values in RESEARCH_LEVEL table

This is a SQL that I am trying to use

UPDATE SOLAR_SYSTEM JOIN RESEARCH_LEVEL ON SOLAR_SYSTEM.USER_ID=RESEARCH_LEVEL.USER_ID SET
SOLAR_SYSTEM.CASH_METAL=SOLAR_SYSTEM.CASH_METAL+1000,
SOLAR_SYSTEM.CASH_CRISTAL=SOLAR_SYSTEM.CASH_CRISTAL+1000,
SOLAR_SYSTEM.CASH_ENERGY=SOLAR_SYSTEM.CASH_ENERGY+1000
WHERE RESEARCH_LEVEL.TYPE='M' AND RESEARCH_LEVEL.LEVEL=1;

I got error

"ERROR 1064: You have an error in your SQL syntax near 'JOIN RESEARCH_LEVEL ON SO
LAR_SYSTEM.USER_ID=RESEARCH_LEVEL.USER_ID SET
SOLAR_SY' at line 1"

I don't know what is wrong. Can I do such an update in Ver 3.23.54-Max in the first place ? IF yes, then what's wrong with my statement?

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Creating New Table Based On Old Table
I have a MySQL database with a user table will lots of DUPLICATE email.

I want to delete the rows completely having the duplicate email.

I found a way out is to use some thing like this:

Code:
insert into newtable (email)
select distinct email from oldtable
But this way, only the email column is populated in the new table. I want all the other columns as well.

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Join Table Based On Specified Condition
Is it possible to join two tables based on the specified condition in MySQL. For example, i have two tables t1,t2 and t3. The table t1 and t2 has field called name and the table t3 has field name class. I want to select the names from t1 or t2 based on the condition of class(t3). If class=4 then select name from t1, if class=10 then select name from t2.tell the query in mysql.

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Deleting From A Table Based On Record Id
I need to execute the following query:

delete from history where id=(select min(id) from history where user = username);

this query doesn't work and gives me an error "ERROR 1093 (HY000): You can't specify target table 'history' for update in FROM clause"

How do I rewrite this query? Ofcourse I can go for two queries, but I'd prefer to do it with a single query.

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Order By Based On Results From Another Table
I have a query that , and i need to order the result based on wheter or not the ID of my main table appears on another table, somewhat like this:

SELECT A.id AS Id, A.nome AS Nome
FROM main_table A
JOIN joined_table JT ON JT.id = A.id_cat
ORDER BY ("first whoever have a row in" another_table AT)

another_table stores the image paths related to main_table , i need to show all query results from main_table even if they don't have a image (row in another_table), but i need to show whoever have a image (a row in another_table) first...

I've tryied to join with another_table and even to use sobqueryes in ORDER B... but so far i got no results. it's even worst because this query is a monter with multiple lines (the sample is simplyfied...)

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ORDER Based On One Field But LIMIT Based On Another?
Say I have a table with students and their grades, and I want to get the students with the top 10 grades, but the result to be sorted based on their name. How would I do that?

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List Available Items Based On Prerequisite Table
I'm trying to develop such a scheme:

TABLE Prerequisites
PrerequsiteID (FK to Upgrades table; states a prerequisite for UpgradeID in the other column)
UpgradeID (FK to Upgrades table as well)

TABLE BuildingUpgrades
BuildingID (FK to Buildings table)
UpgradeID (FK to Upgrades table; states what Upgrade Building already has)

So it's a Building -> Building_Has_Upgrades -> Upgrades -> Upgrades_Have_Prerequisites thing (Building has 1..n Upgrades, Upgrade has 1..n prerequisites). In order for Building B to have an Upgrade U, that Building B has to have all the Upgrades which are required to have Upgrade U.

What I want to do is to list all buildings with all upgrades available for them. I've been trying for almost whole day to solve this issue with different inner, left and right joins, subqueries and what not but I can't really do it in a clean way.

The only working thing is a query, which I am ashamed of because it seems like a real waste of CPU time to me:

SELECT BUPG.BuildingID, PRE.UpgradeID, COUNT(PRE.PrerequisiteID)
FROM BuildingUpgrades BUPG
JOIN Prerequisites PRE ON BUPG.UpgradeID = PRE.PrerequisiteID
GROUP BY BUPG.BuildingID, BUPG.UpgradeID
HAVING COUNT(PRE.PrerequisiteID) =
(
SELECT COUNT(PrerequisiteID)
FROM Prerequisites
WHERE UpgradeID = PRE.UpgradeID
GROUP BY UpgradeID
)

What it basically does is takes all the available Upgrades, counts prerequisites that have been met by the building and checks if it's equal to the number of all prerequisites for that Upgrade. And it works but I still think there is a much better way to do it.

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Table Creation Based On User Login
I'm trying to build a website that will allow the addition of users (w/ username, password, etc.).

That seems simple enough.

But is it possible to set something up (in PHP, for example) that will create a new table in the database for each new user?

Ex. John Smith signs up, is verified, and a PHP script (or Java, or whatever) creates a table specifically for him.

I know I'll need a master table of usernames, passwords, etc. These new tables would store certain user-specific data, such as preferences and other data the user might want to restrict access to.

I know I could store all of this information in a master table, but I'm trying to think ahead. Worst case scenario, if there are millions of users (unlikely, but not impossible), I'd hate to have all that data in one table, but if I have to, I can.

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Counting Levels On Adjacency Based Table
Does anyone know a single query that could successfully count the number of levels in a table based on the adjacency model?

By "number of levels", I mean the number of LEFT OUTER JOIN that needs to be used in a query such like this one :

SELECT
level0.cat_ID AS level0_ID, level0.cat_parent_ID AS level0_parent_ID, level0.cat_name AS level0_name,
level1.cat_ID AS level1_ID, level1.cat_parent_ID AS level1_parent_ID, level1.cat_name AS level1_name,
level2.cat_ID AS level2_ID, level2.cat_parent_ID AS level2_parent_ID, level2.cat_name AS level2_name,
level3.cat_ID AS level3_ID, level3.cat_parent_ID AS level3_parent_ID, level3.cat_name AS level3_name
FROM ecom_categories AS level0
LEFT OUTER JOIN ecom_categories AS level1 ON level1.cat_parent_ID = level0.cat_ID
LEFT OUTER JOIN ecom_categories AS level2 ON level2.cat_parent_ID = level1.cat_ID
LEFT OUTER JOIN ecom_categories AS level3 ON level3.cat_parent_ID = level2.cat_ID
WHERE level0.cat_parent_ID IS NULL
ORDER BY level0_name, level1_name, level2_name, level3_name

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Detecting Duplicates Based On One Field In A Table?
I can't seem to find an answer anywhere for this as most people want to delete duplicate records.

I have a table, lots of fields, one of which is "title". I want mysql to return all the rows where "title" is the same. For instance if "title" was "Lord of the Rings" on id = 1 and id = 2, then the query would return both of the records, but ignore the others. It doesn't matter what the other field values are.

I have found some
SELECT COUNT( * ) AS num_entries, title
FROM title_table
WHERE title >1
GROUP BY title

But this doesn't seem to work, although looks like it's on the right sort of lines?

I'm not a Mysql expert, so my experience is mostly limited to the usual select, insert, update and delete queries!

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Select Based On Two Rows In Mapping Table
I have a many to many relationship between a resource and tag:

resource - 1:M - tagged_resource - M:1 - tag

So a resource can have many tags and a tag can belong to many resources. The data would look like this:

RESOURCE TABLE
id: 1
name: resource1

TAG TABLE
id: 1
tag: new
id: 2
tag: tested

TAGGED_RESOURCE
resourceID: 1
tagID: 1
resourceID: 1
tagID: 2

How can I select the single row from the RESOURCE TABLE which has the tags 'new' and 'tested' in the TAGGED_RESOURCE TABLE?

I have tried using 'IN' but it acts like an OR operator rather than AND.

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Multiple Table Search Based On User Input
I'm working on a database containing our research data. I know very little about PHP, MYSQL, or database structure (except keep like data together in different tables and have a key field in each).

I'm currently working with 3 tables (tbl_2006 and tbl_2007 structures are identical): ....

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Determining Which Table To Query Based On Data Within Tables
I have 2 tables:

default_categories
column 1: category_id
column 2: category_name
column 3: category_parent

custom_categories
column 1: custom_cat_id
column 2: custom_cat_name
column 3: custom_cat_parent

The custom_categories table won't necessarily have anything in it but if it does, I need to choose the data from the custom_categories table over the data from the default_categories table.

So if the default category has 3 rows with IDs | names:
123 | Dogs
456 | Cats
789 | Fish

And the custom category has 1 row with IDs | names:
456 | Very Cute Cats

I want my query of these 2 tables to produce the following IDs | names:
123 | Dogs
456 | Very Cute Cats
789 | Fish

I've tried joins like the one below but they aren't working because if there is no custom_cat_id, it won't give me the result for the default category_id.

MySQL
SELECT *
FROM default_categories
LEFT JOIN custom_categories ON category_id = custom_cat_id
WHERE category_parent = ''
AND custom_cat_parent = ''
ORDER BY $order_by $sort

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How Do I Replace Data In An Existing Table - Based On A Column With An Identifier
Each record in the table I want to update has a unique identifier: products_model. For a given model number, I want to replace its image, which is located in a field called products_image.

The file with the new data is a .txt file, a sample of which looks like this:

v_products_modelv_products_imageEOREOR
5361453614.jpgEOREOR
5361553615.jpgEOREOR
5372453724.jpgEOREOR

The beginning part of the table looks like this:
+----------------------------------+---------------+------+-----+---------------------+----------------+
| Field | Type | Null | Key | Default | Extra |
+----------------------------------+---------------+------+-----+---------------------+----------------+
| products_id | int(11) | NO | PRI | NULL auto_increment |
| products_type | int(11) | NO | | 1 | |
| products_quantity | float | NO | | 0 | |
| products_model | varchar(32) | YES | MUL | NULL | |
| products_image | varchar(64) | YES | | NULL | |
| products_price | decimal(15,4) | NO | | 0.0000 | |
| products_virtual | tinyint(1) | NO | | 0 | |

From what I've read over the past few days...I think I need to:
(a) delete the EOREOR column from the text file;
(b) use the LOAD DATA INFILE command somehow, telling it to ignore the first line of column headers in the text file.

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Returning Rows In Left Table Based On Mutliple Criteria In Right
This is starting to get to me. I'm sure there's a simple way of handling what i'm trying to do, but someone might be able to help out quicker than spending another hour searching and testing for this. Here's the problem:
Simplified tables:
ARCADES
=======
ID,
name
GAMES
======
ID,
name
ARCADES_GAMES
=============
ID,
arcade_iD
Games_ID
Straightforward enough so far right? I'm trying to get all arcades that have ALL games in a passed in set of game_id's. So for instance I might want all arcades that have the games 11 and 14, but it must have both those.
I can do soemthing like...

SELECT a.name
FROM arcades a
WHERE EXISTS(SELECT 1 FROM arcades_games
WHERE arcade_id=a.id AND game_id IN (11,14))
But that'll return all rows that match ANY of (11,14) rather than ALL of 11,14.

It all comes down to the simple thing of getting rows in a table where all criteria from a list is met, but any advice on how i would do something like this?

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INSERT Into New Table, SELECT From Old Table, UPDATE Old Table With New Key
Code:

INSERT INTO retailers
(retailername, retailerdesc, retailerwebsite, retailerurl, active)
SELECT
datasource_retailername,
datasource_retailerdesc,
datasource_retailerwebsite,
datasource_retailertrackurl,
1
FROM
datasources_retailers_idx AS i
LEFT OUTER JOIN
retailers AS r
ON
r.retailername NOT REGEXP REPLACE(i.datasource_retailername, ' ','.+')

UPDATE datasources_retailers_idx SET idretailers=last_insert_id();

Here's what I'm trying to do:

* Select from old table
* check if there is a matching retailer in the new table
* If not, insert retailers details into new table
* Update a reference column in the old table with the INSERTID primary key value of that row from the new table

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Update Table With Info In Other Table
i have a case like this:

table table1 (key, accumulator)

table table2 (key, counter)

i want to, for each table1.key = table2.key, update accumulator with the info in counter, something like this:

update table1 set accumulator=accumulator+table2.counter where (? counter is the value related with the same key as the one in table1)

how do you write a sentence like this one?

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Update A Table With Data From Another Table
I have two tables with similar data. The firs table contains data that is to be updated with data from the second table. The first table (tblA) has a unique key, but the second table (tblB) does not.

I have to use the 'lastname', 'firstname' and 'dept' fields that are in both tables and join the tables on those three fields.

I have tried:

update tblA, tblB
set tblA.empPty=tblB.empPty
where ((tblA.empLName=tblB.empLName)
and (tblA.empFName=tblB.empFName)
and (tblA.empDept=tblB.empDept));

with some test data where I know I have a match using the three fields, but nothing gets updated.

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Update One Table Value With Values From Another Table
I am trying to update one table value with values from another table, and I cannot get it to work. What am I doing wrong?

This is my SQL-command:
UPDATE tabel1 SET tabel1.name=tabel2.name WHERE tabel1.ID=tabel2.ID

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Update Table With API
I'm trying to develope a getway between matlab and mysql. I would like to
write the result of matlab routine into mysql table without "UPDATE
.....SET..." statement, because I've have to write a different value for each
row and I have to write a lot of row. I would like to write table row by row
sequentially.

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2-table UPDATE
I am running the following query through PHP's mysql_query:

UPDATE hotel, hotel_brand
SET hotel.hotel_brand_id=0, hotel_brand.hotel_brand_parent_id=0
WHERE hotel.hotel_brand_id=6 AND hotel_brand.hotel_brand_parent_id=6

In actuality, it's two queries combined into 1. I am deleting a value that rows in these 2 tables reference, and want to set the values to 0.
Of course, the problem is the values aren't changing to 0.

Is splitting these up the best solution?

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Update Table From TXT/CSV
I have a table With Field1(INT,8,PK), Field2(INT,6,PK), Field3(VARCHAR,255) and Field4(VARCHAR,255).

I have to update records from a FIXED LENGTH TXT that contains:
Field1(8 digits)Field2(8 digits)Field4(1-255 digits) or the same in CSV....

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UPDATE Table SET
Does anyone know how to implement this into a php form CORRECTLY? I have all the proper syntax but then the server gives me a message that says the mysql version may not go along with the syntax. How do I work around this then? I need to update query strings and such and nothing will work.

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UPDATE From One Table To Another
This should be so simple but I'm getting a very strange error??

I'm using MySQL version: 4.1.12-log

I've got an outdated country table that I'd like to update info from an ISO table. Pretty straight forward if you ask me.

Here's the query:
UPDATE country, isocountry SET country.un_numcode=isocountry.numcode
WHERE country.country_code=isocountry.iso;

I created a column called un_numcode and then I'd like to put the iso numcode info in my table where the country_code = iso code (same data, different field names in different tables).

It goes along really well for 38 rows out of 239 rows?? And then I start getting 127 in ALL the un_numcode fields even though that value does NOT exist in the country.numcode table!

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Update One Table
I have 2 tables one for the team standings one for the scores, this select statement will calculate win loss :

SELECT
SUM((homescore>awayscore and home=teamid)
OR (awayscore>homescore and away=teamid)
) as wins,
SUM((homescore>awayscore and away=teamid)
OR (awayscore>homescore and home=teamid)
) as losses
FROM scores, teams
order by teamID

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Table Update
How do I relate such a way that I update a column of the main table, another secondary table's column related to the main table gets updated automatically?

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UPDATE From A Linked Table
I wanna update the table COMPANY from a linked field. The following is not
accepted. Could anybody help me with what the command should be?
Thanks a lot.

UPDATE `COMPANY`
SET `COMPANY`.Region_ID =
(
SELECT `Area`.Region_ID
FROM `AREA`
WHERE `COMPANY`.Area_ID = `Area`.Area_ID
)

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Update A Table With Values In Another
I have the following table

tableA
column_a
column_x
column_y
column_z

tableB
column_x
column_y
column_z

How do I update the rows of tableA that match rows of tableB (all rows
of tableB are unique)

What I want to acheive is a check against tableA.column_x with
tableB.column_x, if they match, then update the row in tableA.column_y
with the value of tableB.column_y and tableA.column_z with
tableB.column_z

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Update Table By ID Ranges
How do i use the UPDATE statement to update a range of Primary Key id
numbers. (let say 100 through 1000).

Example,

UPDATE testTable set testField='9999' WHERE
test_id in (100:1000);

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Automatic Table Update
i have an database in which i need to update a status filed of an table with the date.

i,e those datas which gets expired are to be updated..

so need to run a command in mysql by default.,

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Multiple-table UPDATE.
I'm trying to update multiple-tables at the same time but I read somewhere that you could do it if you had mysql version 4.0.4. But currently, I have version 4.0.0 and I want to know how to do it with this version

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Update Table Problems
I'm trying to update a table where specific values are in another table. Here is the update statement I am using:

UPDATE Route_Detail,Routes SET Route_Detail.Trip_Calc='S'
WHERE Routes.Route_ID = Route_Detail.Route_ID
AND Routes.Project_Code = 'OSUT'
AND DATE_FORMAT( Route_Detail.R_Date, '%m%Y' ) = 072006

This statement runs but does not update any rows.

This select statement returns 11 rows:
SELECT RDetail_ID
FROM Route_Detail
INNER JOIN Routes ON Routes.Route_ID = Route_Detail.Route_ID
WHERE Routes.Project_Code = 'OSUT'
AND DATE_FORMAT( Route_Detail.R_Date, '%m%Y' ) = 072006

How do I get the UPDATE statement to update those 11 rows.

I'm using MySQL 4.1.21-standard version.

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