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SQL Query Not Outputing All Rows.

My query doesn't seem to output all 6 rows in the database only two queries and i'm unsure why. I do know it is the query as when i do
SELECT * FROM case_studies
It outputs all rows.
The query i am usign is:
select programs.program_title,
programs.id, case_studies.id,
case_studies.title, case_studies.author,
case_studies.timestamp from case_studies,
programs WHERE programs.id
= case_studies.id
Any ideas?

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I would like to be able to output the difference between twostable that look
like the following:

Table1 Table 2
-------- --------
item1 item1
item2 item2
item3 item3
item4 item4
item5
item6

I would like to output:

Result
--------
item5
item6

Zero Rows Or One Rows Returned, Same Data And Same Query
I have a query that produces a single row (as I expect) when I run it from the mysql client (mysql 4.0.18-Max/linux, also 5.0.19-standard/OSX-intel), or from sqlgrinder (osx, uses jdbc).

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Why do I get inconsistent results? Here's the query:

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I've this sql-query...

$sql = "INSERT INTO database (some_kind_of_id, names) VALUES $xxx, $_POST['xxx2']";

The thing is that my post xxx2 are several values that I want inserted on several rows with the values xxx in front...

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SELECT expensive query ORDER BY field LIMIT 10 OFFSET rows()-10
We're using MySQL 4.0. Is there a way to achieve the above without using a temporary table?

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Suppose I have the following data:

+----+----------+-----+-----+-----+-----+-----+-----+-----+
| Id | Time | Sun | Mon | Tue | Wed | Thu | Fri | Sat |
+----+----------+-----+-----+-----+-----+-----+-----+-----+
| 11 | 11:20:00 | F | T | T | T | F | F | F |
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| 17 | 13:00:00 | F | T | T | T | T | T | T |
| 18 | 13:25:00 | F | T | T | T | T | T | T |
| 19 | 13:50:00 | F | T | T | T | T | T | T |
| 20 | 11:28:00 | F | T | T | T | T | T | F |
| 21 | 11:53:00 | F | T | T | T | T | T | F |
| 22 | 12:18:00 | F | T | T | T | T | T | F |
+----+----------+-----+-----+-----+-----+-----+-----+-----+
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SELECT cas.id,cas.noCas,cas.nomFictif,cas.prenom,cas.naissance FROM cas WHERE LEFT(noCas, 3)<'300' AND cas.id<>53 AND cas.id<>61 AND cas.id<>173 AND cas.id<>174 AND cas.id<>178 AND cas.id<>185 AND cas.id<>598 ORDER BY noCas

There must be a more efficeint way to find what i want than this :

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tried to find the answer with search but didn't return any answers.

OK, here is the table

table test
------------------------
| test_id | test_order |
------------------------
| 1 | 1 |
------------------------
| 2 | 2 |
------------------------
| 3 | 3 |
------------------------
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Quote:

$sql =
'UPDATE `test` SET `test_order` = ƈ' WHERE `test_id` = 1;'
'UPDATE `test` SET `test_order` = Ɖ' WHERE `test_id` = 2;'
'UPDATE `test` SET `test_order` = Ƈ' WHERE `test_id` = 3;'
. ' '

I'v tried that but got a syntax error.

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SQL
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set rsminmax = con.execute("SELECT * FROM `minirules_minmax` where RuleId = '" & contractId & "'")
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Average Query With 2 Rows From Same Table
My table:
"answer"
answerID
answer(int)
questionID(int)
userID(int)

answer1 is questionID = 1
answer2 is questionID = 2
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I have 2 tables here

table categories

+--------------------------------------- +
| cat_id | cat_name | cat_total_articles |
+----------------------------------------+
| 1 | PHP | 23 |
+----------------------------------------+
| 2 | MySQL | 17 |
+----------------------------------------+
table articles

+---------------------------- +
| article_id | article_cat_id |
+-----------------------------+
| 1 | 1 |
+-----------------------------+
| 2 | 2 |
+-----------------------------+
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Is it possible to combine the following queries into one statement?

PHP

mysql_query("UPDATE categories
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WHERE cat_id = 2");

PHP

mysql_query("UPDATE categories
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Help With Updating Duplicate Rows In Mysql Query.
Quote:

SELECT id, count(*) AS numlist FROM products GROUP BY category, name, brands HAVING numlist > 1 ORDER BY id ASC

What it does is find the duplicates. I also have a column called "app" which has a default set to "1". So now what I want to do is that when duplicates are found, I want the first duplicate row in each group to stay as a "1" and the others in the same group to be updated to a "2". I need this done for every group.

How can I do this. I have looked high and low accrossed the web, but can't seem to find any solution.

I have managed to find out how to group them and count the number of listings in each group, but I can't seem to figure out how to do the rest.

Also, if possible, I would like it to be done with one query.

Query To Display The Rows As Colums Is Not Working!!
I want a select query to get two columns. but i need to get these columns one below the other that is consider that i have a table student in that i have 2 columns name mark.
Now i want the result as

Name Raj Rina Tina
Marks 80 90 70

I tried the --vertical option of mysql and G option in the query.

for example when i tried

select *from studentsG

it displayed

*********** 1. row ***********
name: Raj
marks : 80
********** 2. row ************
name: Rina
marks : 90
********** 3. row ************
name: Tina
marks : 70

but i want to display

Name Raj Rina Tina
Marks 80 90 70

Query Which Gets Rows Based On A Radius, Lon And Lat Doesn't Work?
I have found this query which gets rows based on a radius. I need this for zip codes based on lon and lat's.

$sql2 = "SELECT * FROM table as z WHERE (SQRT( (69.1 * (".$userLat." - z.lat)) * (69.1 * (".$userLat." - z.lat)) + (53.0 *(".$userLong." - z.lon)) * (53.0 *(".$userLong." - z.lon))) <= ".$userRadius." )";
return $sql2;
$res = mysql_query($sql2, $connDB) or die(mysql_error());
$row = mysql_fetch_assoc($res);
based on a test zip code gives a result like

SELECT * FROM table as z WHERE (SQRT( (69.1 * (52.399834 - z.lat)) * (69.1 * (52.399834 - z.lat)) + (53.0 *(4.840762 - z.lon)) * (53.0 *(4.840762 - z.lon))) <= 100 )
the lat and lon of the test zip code are right. As you can see z.lat and z.lon don't get any value. And these would be every lat and lon in table.

In my db table lon and lat are decimal(10,6) type with a default value of 0.000000

Use Where In Query So It Returns Rows That Has Less Than 10 Characters In The Word
I want to return rows that has less than 10 characters in the word that is used in the where clause sort of thing.

I can't really explain so I will give you an example, which is obviously wrong.

Quote:

mysql_query("select games from gaming where gamename < 10 characters");

Why Does The Slow Query Log Show More Rows Than Exist?
# Time: 070528 17:14:57
# User@Host: counter[counter] @ localhost []
# Query_time: 3 Lock_time: 0 Rows_sent: 7 Rows_examined: 120647
SELECT SQL_CACHE `webpageUrl`, `webpageName`, COUNT(*) AS `count`, (COUNT(*) / (SELECT COUNT(*) FROM _1_log)) AS `pct` FROM _1_log GROUP BY `webpageUrl` ORDER BY `count` DESC LIMIT 7;

mysql> select count(*) from _1_log;
+----------+
| count(*) |
+----------+
| 111824 |
+----------+
1 row in set (0.00 sec)

Trying To Count The Number Of Rows In A Result Set After Query
The user fills out this form to sign up to the website, the form checks the database to see if the username has already been taken with the code:

$conn = mysql_connect("localhost:3306", "root", "********")
                                    or die ("Error With Connection");
        echo("connected<br><br>");
        $db_sel = mysql_select_db("game",$conn)
                                    or die ("Error With Database");
        $check = "select * from users where 'username' = '$username'";
        $db_sel = mysql_query($check,$conn)
                or die (mysql_error());

Creating Non-existent Rows In Query With Join
I want to make report using PivotTable/CrossTab and I used an application to create it.
The problem is, I want to so show NULL value to the temp table that will be the source of my report.

I'm using this query:

What Query To Check If Any Rows Exist Satisfying WHERE Clause?
I'm looking for a query that will check if any rows exists in a table according to a WHERE condition. I know I can use COUNT(*) but then mysql will do unnecessary task of counting all the rows whereas I just need true or false. So far I did this:

SELECT COUNT(*) AS exists FROM mytable WHERE ...
Sometimes I just select the first row and check later in php how many rows have been returned:

SELECT some_col FROM mytable WHERE ... LIMIT 1
But I cannot do this check (or can I?) in sql alone and I have problems when I want to use this in a subquery, for example:

SELECT id,
name,
(SELECT COUNT(*) FROM mytable WHERE ...) AS exists
FROM othertable
WHERE surname='xxx'
Can I do the same without using COUNT(*)? I would like a query that returns 0 or NULL if no rows were found, or 1 (or some other value) if 1 or more rows were found.

Count One Table's Rows From Multi Table Query
here are my tables (condensed)

FEEDS
feed_id
site_id

SITE
site_id
site_name

ARTICLES
article_id
feed_id
link

I want to create a query that returns the total number of articles for every site_id (which is unique in the SITE table). I have this:

PHP

$gsite = mysql_query("SELECT site.site_id, feeds.feed_id, COUNT(articles.article_id) AS acont FROM site,feeds,articles
WHERE feeds.site_id = site.site_id AND articles.feed_id = feeds.feed_id group by site.site_id", $connection)
or die(mysql_error());

The query does not use JOIN, ON and all that good stuff.

I just need the following variables to run through a loop:

site_id
the number of articles rows per site_id

What's Wrong With My Query To Filter Double Entries And Skip Empty Rows?
I am trying to get filter a database table.
- skip empty rows (i.e. ecardNameSender is empty)
- filter double entries

$sql = "SELECT COUNT(*) as total FROM tblEcards WHERE ecardNameSender != '' GROUP BY ecardEmailFriend";
$result = @mysql_query($sql, $connDB);
$row = mysql_fetch_assoc($result);
$totalPics = $row['total'];
echo $totalPics;
What's wrong with my query?

Using A Limit Clause, But Return The Number Of Rows Of The Query Without The Limit
I have heard of a cool feature that mysql provides a way to return the number of rows of an sql statement that contains a LIMIT as if the LIMIT had not been there.

I search the mysql manual, but could not find anything.

How To Get The Total Number Of Rows With A Query "limit" ?
I would like to paginate the results of a query on several pages. So I
use a query with a limit X offset Y to display X results on a page,
ok.

But for the first page, I need to run the same query with a count(*)
to know how many pages I will get (number total of rows/ X).

The problem is my query is very slow (maybe 5s) because there is much
worch to do, and on the first page, I need to run this query twice
(not exactly, but ...) so the page is very very slow to load.

My question is : is there a function to get the total number of rows
even on a query with "limit" ? Or what could I do else?

How To Insert Multiple Rows With 1 Insert Query
I am having a form on the front end which has for example 3 rows each with 3 columns. The user enters data in all the 3 rows. When he hits the add button these should get in the database. What insert query would I write to add all of them together to the database? Do I need to use some procedure?

Help With 3 Table Query & Counting Rows In Third Table
I have three tables, a members, a vendors and a products. I'm using a query to grab all of the rows from the first two tables, matching on a primary key. This is easy and works fine. However, I'm trying to pull the number of products from the third table and it's giving me trouble. Basically, I can count the products for each vendor if products exist, but if there are no products, instead of returning 0, no rows are returning.

current query looks like this:

SELECT t1.*, t2.*, count(*) AS count FROM vendors as t1, members AS t2, products AS t3 WHERE t2.mem_id = t1.mem_id AND t3.vendors_id = t1.vendors_id GROUP BY t1.vendors_id;

So, all of the vendors that have zero products are being left out of the results. Does anyone know if it's possible to achieve this without using a temp table?

Query To Retrieve The Last "X" Rows
I need create a query to retrieve the last 10 rows of my table.....

Searching For Rows That Depend On Other Rows In Some Fashion...
Maybe this is a very stupid question. I'll try anayway. I'm using
MySQL 3.23.52 on RedHat 8.0.

I have a very big table (several millions of rows). Each entry
actually constitute a word in a big text. Among other fields we have
an ID for each word which represents the postition in the text. Now I
want to search for short phrases.

For example "welcome to sweden". This means i want to find all
occurences of the word "welcome" with ID x, where we have the word
"to" with ID x+1 and the word "sweden" with ID x+2. I've tried doing
this recursively with temporary tables - but a find myself hitting a
wall as i'm not allowed to refer to 2 different temporary tables in
the same query...

Resorting to another type of data strucutre, full text index etc.. is
unfortunately not an option. We only need this as an add on feature if
we can do it. We believe that indexes, data structures etc.. are near
optimal as is.

Please use my email for further conversion since I'm not a frequent
usenet reader.

Insert New Rows With Qty Values From Existing Rows
I am trying to make all my products unique in my db.
Lets say I have a row with an id, it also has all relevant details about the product and it has a quantity value of 4.
What I would like to do is take the entire row and duplicate it by the number of the quantity field.
This would result in the same product 4 times instead of one product with qty of 4.
Reason, I am going to serialise all the products so that they each have unique barcode from the id field.
I will encounter the reverse issue when running an insert statement for inputting new data, i.e. insert a new row for each item depending on its qty value??

Rows In T1 Not In Both T2 And T3 (was "Query Help...")
Scenario: 3 Tables

Table1:
-t1id
-t1machine

where: t1machine contains:
mach01
mach02
mach03
mach04
mach05
mach06
mach07
mach08
mach09
mach10

Table2:
-t2id
-t2machines

where: t2machines contains:
mach01,mach03
mach02,mach05

Table3:
-t3id
-t3machines

where: t3machines contains:
mach06,mach07
mach08,mach10

Problem:
Need to get machine in Table1 where it doesn't exist yet in both table2 and table3...
Tried using NOT IN as part of a WHERE clause but doesn't bring result as I intended, in the example I should be getting
mach04 and mach09.

Two Table Query: Grab Rows From One Table Even If No Related Row In Other Table
PHP

$gettray = mysql_query("SELECT trailers.title,
trailers.link,
trailers.movie,
movie.title AS mtitle
FROM trailers,movie
WHERE trailers.movie=movie.word
ORDER BY trailerid
DESC LIMIT 6",$connm);

It works great, but there is one problem. It will not grab any rows from the 'trailers' table if a corresponding movie row does not exist in the 'movies' table.

I want it to pull ALL rows from the 'trailers' table, even if the corresponding row in the 'movies' table does not exist yet.

If the row does not exist in 'movies', the program than uses the entire trailer title like so

PHP

if($ttray['mtitle']) {
$newttitle = explode("-",$ttray['title']);
$newttitle = array_reverse($newttitle);
$ttitle = $newttitle[0];
$ttitle = $ttray['mtitle'] ."- ". $ttitle;
} else {
$ttitle = $ttray['title'];
}

Thanks
Ryan

Getting Rows That Are Related To Other Rows In The Same Table
I use a table to save a map using the following structure:

id, x, y, owner

Every occupied map filed has an owner id != 0. The owner id is = 0 for vacant fields.

now the problem:

New registered users need a vacant field on the map. Moreover the mapfields around this field need to be vacant as well! (sqrt((t1.x-t2.x)*(t1.x-t2.x)+(t1.y-t2.y)*(t1.y-t2.y)) <= 5.25)

What I need is a query that gets those fields that have vacant fields around them.

So far, all my tries to solve this problem with Joins/Suvqueries failed.

How Can I Make A Query Like Microsoft Access, And A Query From A Query
I am new to MYSQL and am trying to understand how to make queries... I am moving from Microsoft Access where it is GUI driven and easy!

I can make a simple single query using MYSQL Query Browser, say:

qry1: SELECT ID, Area FROM data GROUP BY Area

How can I store this as a query inside MYSQL, rather than having to code it each time?

In Microsoft Access I could enter a variable ($VARIABLE) and then pass by code to the query:

qry2: SELECT ID, $VARIABLE FROM data GROUP BY $VARIABLE

How can I store this as a query and then pass the variable from code?

In Microsoft Access I could base a query on the results of another query, so following example above:

qry3: SELECT qry1.Area, data.ID FROM qry1 INNER JOIN data ON qry1.Area = data.Area;

How can I store this as a query in MYSQL.

Match Rows In Table B With Rows In Table A
How do I structure a query to match rows in table B with rows in table A where column in B contains strings that contain data from column in A..

Example:

B.part = "abcdefg" matches A.part ="cde"

I cannot put literal in query.. it must be from column data..

It's easy to match rows where columns are equal, but I can't figure out how to get a match with "substring" as shown.

Converting From Many Columns/few Rows To Few Columns/many Rows
So I have a table that looks like:

Code:

char_id1234(...up to 30)
582NULL416
25739NULL12
391NULLNULLNULL

Each char_id is the primary key in another table, each numerical column value is the primary key (skill_id) in a third table, and each data value is the primay key (rank_id) in a fourth table.

I am attempting to join all four tables into a single query, but it seems impossible without converting the table to something like this:

Code:

char_idskil_idrank_id
5812
5834
58416
2517
25239
25412

Don't Select Rows That Match Both Columns But DO Select Rows That Don't Match Both
I suppose it is because it is 2:30 AM but I'm having a bit of trouble figuring out the SQL I need to write. I am usually pretty good at this. Here's what I'm having trouble with.

My app includes a Poll system built from scratch. Each question will run for one month. the month that the poll will run is kept in 2 columns in my table... runMonth and runYear.

What i'm having trouble doing is selecting the rows that don't match both the current runMonth and current runYear.

My Table...

id.............Question...........runMonth...........runYear
1..............QA...................1......................2007
2..............QB...................2......................2007
3..............QC...................3......................2007
4..............QD...................4......................2007 (current month and year)
5..............QE...................5......................2007
6..............QF...................6......................2007

I can simply get the question for the current month...

SELECT * FROM table WHERE runMonth = 4 AND runYear = 2007;
but if I try to get all others using

SELECT * FROM table WHERE runMonth != 4 AND runYear != 2007
I get an empty result set. As I should because there is nothing there that the runYear != 2007 doesn't knock out. The result set I am looking for is

id.............Question...........runMonth...........runYear
1..............QA...................1......................2007
2..............QB...................2......................2007
3..............QC...................3......................2007
*********************(remove runMonth4 and runYear 2007)
5..............QE...................5......................2007
6..............QF...................6......................2007

What am I missing?

How To Create Efficient MySQL Query From A Pseudo Query
I'm trying to build a webapplication where users can search for a person having a particular preference for color and material. To store this information I use the following structure (a MySQL dump can be found at the end of this post):
*table person with fields:
-persid: autoincrement id
-name: name of the person
*table material with fields:
-materialid: autoincrement id
-material: name of the material eg "wood"
*table color with fields:
-colorid: autoincrement id
-color: name of the color eg "green"
*table persmaterial with fields:
-persmatid: autoincrement id
-persid: link to table person
-materialid: link to table material
*table perscolor with fields:
-perscolorid: autoincrement id
-persid: link to table person
-colorid: link to table color

In the webapplication the search can be entered by the users as a kind of pseudo query:
(color=red OR color=blue) AND color=green AND material=iron

My question is: how can I automatically transform this pseudo query into an efficient MySQL query?
I have tried out some different options:

Option 1:
(SELECT p.persid FROM person p, perscolor pc, persmaterial pm WHERE p.persid=pc.persid AND (pc.colorid=1 OR pc.colorid=2) AND p.persid=pm.persid AND pm.materialid=2 GROUP BY p.persid HAVING (count(DISTINCT pc.colorid)=2 AND count(DISTINCT pm.materialid)=1)) UNION
(SELECT p.persid FROM person p, perscolor pc, persmaterial pm WHERE p.persid=pc.persid AND (pc.colorid=2 OR pc.colorid=3) AND p.persid=pm.persid AND pm.materialid=2 GROUP BY p.persid HAVING (count(DISTINCT pc.colorid)=2 AND count(DISTINCT pm.materialid)=1))
Remarks:
*I do not see how to turn a general pseudo query into a query like the one in option 1, except for turning the pseudo query into a sum of products form where the sulms would correspond to the UNIONs. IS there a clever way to obtain such a sum of products form from an arbitrary pseudo query?

Option 2:
SELECT persid FROM person p WHERE
(EXISTS(SELECT * FROM perscolor pc WHERE pc.colorid=1 AND p.persid=pc.persid)
OR
EXISTS(SELECT * FROM perscolor pc WHERE pc.colorid=3 AND p.persid=pc.persid))
AND
EXISTS(SELECT * FROM perscolor pc WHERE pc.colorid=2 AND p.persid=pc.persid)
AND
EXISTS(SELECT * FROM persmaterial pm WHERE pm.materialid=2 AND p.persid=pm.persid)
Remarks:
*very easy to get from pseudo query to MySQL query but what about performance?

Option 3:
SELECT p.persid FROM person p, perscolor pc, persmaterial pm WHERE
p.persid=pc.persid
AND
(pc.colorid=1 OR pc.colorid=2 OR pc.colorid=3)
AND p.persid=pm.persid
AND pm.materialid=2
GROUP BY p.persid HAVING
sum(case when pc.colorid in (Ƈ',Ɖ') then 1 else 0 end) >= 1
AND
sum(case when pc.colorid=ƈ' then 1 else 0 end)>=1
AND
sum(case when pm.materialid=ƈ' then 1 else 0 end)>=1
Remarks:
*this option requires the pseudo query to be turned into a product of sums form; again is their a clever way to obtain such a form;

Option 4
SELECT DISTINCT pc1.persid FROM perscolor pc1
INNER JOIN perscolor pc2
ON pc1.persid=pc2.persid AND pc2.colorid=2
INNER JOIN persmaterial pm1
ON pc1.persid=pm1.persid AND pm1.materialid=2
LEFT OUTER JOIN perscolor pc3
ON pc1.persid=pc3.persid AND pc3.colorid=1
LEFT OUTER JOIN perscolor pc4
ON pc1.persid=pc4.persid AND pc4.colorid=3
WHERE COALESCE(pc3.persid,pc4.persid) IS NOT NULL
Remarks:
*this option requires the pseudo query to be turned into a product of sums form

Option 5:
SELECT p.persid FROM person p, persmaterial pm,perscolor pc1,perscolor pc2,perscolor pc3 WHERE p.persid=pm.persid AND p.persid=pc1.persid AND p.persid=pc2.persid AND p.persid=pc3.persid AND (pc1.colorid=1 OR pc2.colorid=3) AND pc3.colorid=2 AND pm.materialid=2 GROUP BY p.persid
Remarks:
*very easy to get from pseudo query to MySQL query but what about performance?

-- phpMyAdmin SQL Dump
-- version 2.6.1
-- http://www.phpmyadmin.net
--
-- Host: localhost
-- Generation Time: Oct 19, 2006 at 01:13 PM
-- Server version: 4.1.9
-- PHP Version: 4.3.10
--
-- Database: `aston`
--

-- --------------------------------------------------------

--
-- Table structure for table `color`
--

CREATE TABLE `color` (
`colorid` int(11) NOT NULL auto_increment,
`color` varchar(30) NOT NULL default '',
PRIMARY KEY (`colorid`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=5 ;

--
-- Dumping data for table `color`
--

INSERT INTO `color` VALUES (1, 'red');
INSERT INTO `color` VALUES (2, 'green');
INSERT INTO `color` VALUES (3, 'blue');
INSERT INTO `color` VALUES (4, 'yellow');

-- --------------------------------------------------------

--
-- Table structure for table `material`
--

CREATE TABLE `material` (
`materialid` int(11) NOT NULL auto_increment,
`material` varchar(30) NOT NULL default '',
PRIMARY KEY (`materialid`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=3 ;

--
-- Dumping data for table `material`
--

INSERT INTO `material` VALUES (1, 'wood');
INSERT INTO `material` VALUES (2, 'iron');

-- --------------------------------------------------------

--
-- Table structure for table `perscolor`
--

CREATE TABLE `perscolor` (
`perscolorid` int(11) NOT NULL auto_increment,
`persid` int(11) NOT NULL default Ɔ',
`colorid` int(11) NOT NULL default Ɔ',
PRIMARY KEY (`perscolorid`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=7 ;

--
-- Dumping data for table `perscolor`
--

INSERT INTO `perscolor` VALUES (1, 1, 1);
INSERT INTO `perscolor` VALUES (2, 1, 2);
INSERT INTO `perscolor` VALUES (3, 2, 1);
INSERT INTO `perscolor` VALUES (5, 3, 3);
INSERT INTO `perscolor` VALUES (6, 3, 2);

-- --------------------------------------------------------

--
-- Table structure for table `persmaterial`
--

CREATE TABLE `persmaterial` (
`persmatid` int(11) NOT NULL auto_increment,
`persid` int(11) NOT NULL default Ɔ',
`materialid` int(11) NOT NULL default Ɔ',
PRIMARY KEY (`persmatid`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=6 ;

--
-- Dumping data for table `persmaterial`
--

INSERT INTO `persmaterial` VALUES (1, 1, 1);
INSERT INTO `persmaterial` VALUES (2, 1, 2);
INSERT INTO `persmaterial` VALUES (3, 2, 1);
INSERT INTO `persmaterial` VALUES (5, 3, 2);

-- --------------------------------------------------------

--
-- Table structure for table `person`
--

CREATE TABLE `person` (
`persid` int(11) NOT NULL auto_increment,
`name` varchar(30) NOT NULL default '',
PRIMARY KEY (`persid`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=4 ;

--
-- Dumping data for table `person`
--

INSERT INTO `person` VALUES (1, 'john');
INSERT INTO `person` VALUES (2, 'emily');
INSERT INTO `person` VALUES (3, 'liz');

Simple Sql Question: Using A Query Result As A Query Variable
EDIT: it works now, I had an error in my code, not my method.

I have a very simple question.

I have 2 tables: 'users' and 'posts' with the following structure:

users: id, username, email_address
posts: id, user_id, post_title, post_text

in a my own mind's mysql, I would like to:

SELECT posts.id, posts.user_id, posts.post_title, posts.post_text users.username FROM users, posts WHERE posts.user_id = users.id

I usually do one query for the post data, and then, based on the use_id record, do another of the users table, but today, I'm being forced to do them in one swoop.

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Select * from audio left join video on (audio_sid=video_sid and audio_prgm_num=video_prgm_num) left join
pcr_info p on (audio_sid=pcr_sid and audio_prgm_num=pcr_prgm_num) right join stream s on (stream_id=audio_sid) where audio_type =
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