Query Based On Results Of A Previous Query
So far I have managed to construct one query which gives me all individuals that have one of three titles.
based on this I now want to find all the individuals that are affiliated to those listed in the first query ....
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Conditional Select Based On Query Results
I want to print a different message on the database, if a query returns an empty set and a different if the query returns any records. How can i accomplish that? I looked at the case statement but i can't get it working with that.
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How To Use Previous Select Query Results In New Select Query?
I have tested everything and it works OK in its current form. However, what I need help with is the part of the query highlighted in red. As it currently stands, the PHP while statement loops through the rows and echos out the html. The issue I have is that it echos out the same speaker name and subject type for each iteration. Now I know this is happening because I have set subject.event_id = 1, so what I need is to use the event_id of the current iteration as the clause and that is what I need help with....
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Previous, Current, And Next In One Query?
This situation has come up a couple times and I've wanted to know if there's a better way to do it. Given something unique (an ID number, a specific date/time, etc) I want to find the thing that comes before it and the one after it when sorted by something else. Oh, and the "something unique" isn't sequential - random intervals between each. Code: ....
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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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How To Insert New Records Based On Previous Record Values?
I have TABLE: year value It has for example, year, code, vlaue 2007, 33, 4883 2006, 33, 4883 2007, 32, 4883 2006, 32, 4883 2008, 31, 4883 2007, 31, 4883 2006, 31, 4883 I want to insert new records for for 2008 for all codes that do not already have a record for 2008 and increase the value for the 2008 record by 3%. My several attempts have led to this but which does not work. UPDATE TABLE a SET a.value = b.value * 1.05 WHERE b.year = 2007 AND code NOT IN (SELECT code FROM TABLE b WHERE year =2008 AND value !=0)
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Union Based Upon First Query
I have a query that I would like to use a union statement in to grab the number of replies to a specific thread. The initial topic thread is in a different table, which I am grabbing in the initial query... I would prefer to do this in the single query, however I supposed I could do a separate loops and grab the number of replies with a totally distinct query ....
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Creating A Query Based On Dates
I am trying to write a query (in PHP) which selects from a database all of the items which are in the future. My query is as follows SELECT * FROM news WHERE ((news.date)>$today ORDER BY date where news is my database, news.date is the the field which holds the date for the item and $today will be replaced my current date. At the moment it seems to display all values, which suggest its not functioning properly.
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Query Based On 'does Not Exist' Condition
Let's say I have a table called 'forumtopics' with a field representing the topic author's username. I then have another table called 'ignorelist' which has two fields; one is an account number and the other a reference to the aforementioned author. There can be many ignored authors for any one account. For any given account number, I'd like all the rows from the forumtopics table where there is no match for (account, author) held in the ignorelist table. Obviously it's easy to check for existence but can the opposite be done? I run MySQL 4.0.17.
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Sub Query - Aggregate Fields Based On Min N Max
In the Users table below there are duplicate users by email address +---------------------+------------------------------+-----------------+-----------+ | ts | email | field1 | field2 | +---------------------+------------------------------+-----------------+-----------+ | 2009-01-31 06:51:14 | user1@rediffmail.com | 05 | 03 | 2009-01-31 16:07:39 | user2@yahoo.com | 02 | 02 | 2009-01-31 16:15:02 | user2@yahoo.com | 09 | 04 | 2009-01-31 16:16:00 | user2@yahoo.com | 06 | 08 | 2009-01-31 16:19:52 | user2@yahoo.com | 01 | 09 | 2009-01-31 02:04:36 | user3@rediffmail.com | null | 01 | 2009-01-31 02:12:34 | user3@rediffmail.com | 01 | 03 | 2009-01-31 02:20:31 | user3@rediffmail.com | 08 | null +---------------------+-----------------------------+--------------+-----------+ I want to fetch one record per user ‘user1,field1,field2’ For user 1 select field1 where min(ts) select field2 where max(ts) the final output should be user1,05,03 user2, 02, 09 user3, 01,03 (max of ‘field2’ is null so it should pick the field value which matches the next min ‘ts’ val)
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Query Based On Data Of 3 Tables
this is what I've been trying to implement: I have, say, three tables. One is a user table, with id, username, etc Second is a question table with Question ID, Question, Category etc And third is an "answers" table that keeps answers given by the users. It has the classic id key, and Question id and User Id columns. What I want to do is this: Select a random question of category 1 lets say from the questions table for which user X has no record of answering in the answers table.
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Totals Query Based On Days
If I have a table with a ProductID, Quantity, & DateTime field, & would like to have the sum of the Quantity calculated per product per day with blank days being accounted for even if zeroed out, how would I go about accomplishing this in one query? Example result for ProductX:
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How To Query Multiple Tables Based On Value Difference
I 5 tables all with equal columns,but with different values. Per example: time_start,time_end,num_a,num_b,price etc. How can I retrieve the values of all columns `price` between tableX and tableY where time_start in table Y is higher as a datetime than time_start in X. So,the query is about finding the values of `price` between 2 dates in differnt tables.
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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
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Howto Make A Query Based On Another Result?
I need to make query from another query result. tbl_A fields: ID and Date tbl_B fields: ID and FileName Code: Select ID FROM tbl_A where Date>=CURDATE() this 1st_query_result will be any ID with current date from tbl_A. Then I need this 1st_query_result to query the filename which store at tbl_B. something like this: Code: select FileName from tbl_B where ID = 1st_query_result
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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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Time Based Reservation System - Only 1 Query Should Succeed
a user can select a time they want and submit the page * The code selects all the bookings for a range of time. * It then counts how many concurrent bookings there are for each hour. * If there's less than the total (4) it inserts another row ( the user's requested booking ) into the booking table. We also notify people if there has been a cancellation This has led to a situation where a few different people are trying to book the same session at the same time, and succeeding! We've ended up with 5 sessions booked In the course of 2 page requests this seems to happen: User1 - submits their booking site selects to see if there's availability ( there is!) User2 - submits their booking site selects to see if there's availability ( there still is!) site inserts User1's booking site inserts User2's booking
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Run A Query On The Results Of A Query?
Lets say I have a query that searches for people living in Colorado. That results in a list on a "results.php" page. Now I want to query that result and search further for people who use Linux. I know I can do this from one query, but I would like to create several checkboxes on my results.php page where I do a further secondary query. Possible? I guess I want to query a query.
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Is It Possible To Run A Query On The Results Of A Query?
I have been trying to figure this out but no luck. Lets say I have a query that searches for people living in Colorado. That results in a list on a "results.php" page. Now I want to query that result and search further for people who use Linux. I know I can do this from one query, but I would like to create several checkboxes on my results.php page where I do a further secondary query. Possible? I guess I want to query a query.
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Query From Query Results
I have a report I'm working on that is sort of like google adsense, where it tracks ad clicks and views. I need to provide the option for the user to narrow down the results by date. I have my query worked out, but would it be better for me to run the query again and add the date information to the query, or should I cache the results and then query them? If I were to cache the results and then run queries off that, what would be the advantages or disadvantages? I also have no idea how to go about doing that. Should I create temporary tables to hold the queried information or is there another way?
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Query For Month Data Based On Occurance Against Master List
I have a query running nicely. Now I'm trying to expand it. It pulls the data from a table based on matching the id with another table and part of the grouping is by month and 2 other criteria. Now I'm trying to get the data pulled by month to pull only the info where the id matches the master file AND the FRANID's pulled are the same for each month. I'm trying to get a comparisson across times, but not every month has all FRANID's, depending on when they were entered and I ony want data that exists with matches over set months, starting for now with 12, perhaps also for 6 and 3 next time. I've simplified what I'm doing above, but it is detailed below.....
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Save Query Results
In other words, how do I build a new table from the results of a query, so I can access pieces of this data later without performing the same query (a very heavy one) over and over again?
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Filter Results Of One Query
I'm looking for the syntax that would allow me to filter one querys results using another query i.e. QUERYA = SELECT * FROM table WHERE id < 100 QUERYB = SELECT * FROM QUERYA WHERE id <> 49 I understand that I can do the above example in one query - I'm just using that to simplify matters.
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Order Query Results
Regarding a dummy set of data below, ID Status 1 Open 2 Closed 3 Expired 4 Closed 5 Open 6 Cancelled 7 Expired 8 Cancelled I want to view the results but order them according to the status. i.e. i want to view in order of Open, Closed, Expired, Cancelled I can only think of a long drawn out way by which i would create the four seperate queries.
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Query Results By Pages
I would like to display query results in pages of say 20 results each. e.g. a table with two columns, serial# and descrition, with a few thousand entries. What would be the SQL query to find a specific serial number, and display all 20 results within the "page" that row happens to be in? e.g say serial#=3211 is in row 64, display rows 60->79.
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Formatting Query Results?
I have a shell script (sh) that queries a MySQL database and then formats the results to an html page. I realize shell is probably not the best choice for this but it's all I know. My problem is that I need to do a mysql query for every field in every record in order to put it into the html page. This is obviously very slow. This is an example of what I'm doing now: ProductLine=`mysql -u www -s support <<EOF SELECT ProductLine FROM Documents WHERE ID = '$ID'; EOF` DocType=`mysql -u www -s support <<EOF SELECT DocType FROM Documents WHERE ID = '$ID'; EOF` DocName=`mysql -u www -s support <<EOF SELECT DocName FROM Documents WHERE ID = '$ID'; EOF` FileName=`mysql -u www -s support <<EOF SELECT FileName FROM Documents WHERE ID = '$ID'; EOF` Like I said, I am doing this for every field in every record. It works but it is VERY slow. I thought if there was a way to tell the query to insert a special charater between each field then I could use awk to pick out the fields and only do one query per record... something like this: SELECT ProductLine, DocType, DocName, FileName FROM Documents WHERE ID = '$ID'; I don't know how to take that output and put it into my shell variables.
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Saving Query Results
Is there any way to save the results of a query without the quote marks? When i try to import the text file that I saved the query to, I have to go thru and delete all of the quote marks.
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Query Giving Me Results I Don't Want.
query: SELECT sales_reps.sr_id, sales_reps.order_id, sales_reps.name, sales_reps.job_number, UNIX_TIMESTAMP( shop_orders.date ) AS date, sales_reps.stage, sales_reps.status, pi.fname AS pfname, pi.lname AS plname, sales_reps.date_to_shop, users.builder, users.division, shop_assignments.editor_id, shopper.fname AS sfname, shopper.lname AS slname, ei.shop_result, ei.good_tape FROM sales_reps LEFT JOIN shop_orders ON shop_orders.order_id = sales_reps.order_id LEFT JOIN users ON users.user_id = shop_orders.builder_id LEFT JOIN shop_assignments ON shop_assignments.sr_id = sales_reps.sr_id LEFT JOIN users AS shopper ON shopper.user_id = shop_assignments.shopper_id LEFT JOIN users AS pi ON pi.user_id = shop_assignments.pi_id LEFT JOIN exit_interviews AS ei ON ei.shop_id = shop_assignments.shop_id WHERE sales_reps.status = 'Rejected' AND ( ei.shop_result != 'Trip x1' OR ei.shop_result != 'Trip x2' OR ei.shop_result != 'Non-Reg Trip x1' OR ei.shop_result != 'Non-Reg Trip x2' OR ei.shop_result != 'Office Closed' ) ORDER BY users.builder, users.division, shop_orders.date DESC , sales_reps.stage ASC It's not filtering out the records with the shop_result field matching what I've listed.
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How To Get Distinct Hour(s) In Query Results?
I need to write a query that will count the number of records that have been written for each hour of the day. This must be done entirely in SQL, and I am not an SQL expert. I know how to break the hour out of a timestamp using the hour() function, but I'm unclear on how to get the breakdown like I described above.
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Eliminating Duplicate Results From Query
I'm trying to dynamically build pull down menus based on the contents of a column (in order to build a search query). But the column may have the same data entered multiple times. This results in a pull down that has the same option listed several times. I wonder if I can eliminate duplicates from that array? So that it only appears once in the array.
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Update Query Results To Another Table
So I'm learning, bear with me, this is probably pretty easy(but I am a bit perplexed) but I'm writing a php page for a cron. I am selecting a user name from a table basically selecting all row entries in that table with a certain username, and adding them together. $query=mysql_query(SELECT UserName, SUM(AcctOutputOctets) FROM radacct GROUP BY UserName) The output is this(when I run a query in mysql) UserName..............SUM(AcctOutputOctets) test..................... 345566 Basically i'm adding up all the users entries and totaling their Usage. Now the question. I want to write that to another table named mtotacct. format like this. Username..............TotalOctets. I'm just a little uncertain how to properly set this up to pass the results from the query to the UPDATE statement.
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Showing Query Results In HTML
In mysql I can find the minimum data from a particular column by doing as follows: SELECT MIN(Freq_Min) FROM datatable; and mysql will display the results. Now I want to do the same thing but I want to do it in html, so I wrote the following code. When I open up the webpage stats.php it says that it couldn't execute the query. Can someone help get me on track? .....
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Use Query-results As Delayed Insert?
Can I use the results of one query like: -> SELECT user_id FROM tbl_customers And use the results to fill the VALUES-statement in another table like: -> INSERT INTO tbl_postal ('user-id') VALUES (<previous query results>) If so, could someone complete my second SQL-statement, since I'm staring at my CRT for over 2 evenings and I cannot get it to work.
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Query Is Not Returning Desired Results.
My query is not returning desired results. I want to structure my query to return the Post Subject, Post Text, and Poster. Instead, it is returning the correct Post Subject, correct Post Text, but the Poster is just repeating the username from the '$_POST[username]' variable. How can I alter the query to return the correct name? the query PHP <?php$conn = mysql_connect( $domain, $user, $password ) or die("Err:Conn");$rs = mysql_select_db($db, $conn) or die("Err:Db");$sql = "SELECT `table_posts_text`.`post_subject`, `table_posts_text`.`post_text`, `table_users`.`username` FROM table_categories, table_forums, table_topics, table_posts, table_posts_text, table_users WHERE username='$_POST[student]' ANDcat_title='$_POST[category]' AND`table_categories`.`cat_id`=`table_forums`.`cat_id` AND `table_forums`.`forum_id`=`table_topics`.`forum_id` AND `table_topics`.`topic_id`=`table_posts`.`topic_id` AND `table_posts`.`post_id`=`table_posts_text`.`post_id`AND `table_topics`.`topic_poster`=`table_users`.`user_id`AND`table_posts`.`poster_id`=`table_users`.`user_id`ORDER BY `table_topics`.`topic_id`, `table_posts`.`post_id`"; $rs=mysql_query($sql,$conn);while($row=mysql_fetch_array($rs)){ echo($row['post_subject'] . $row['post_text'] . $row['username']);}?> There are six tables involved: 1. table_categories (cat_id medint, cat_title varchar) 2. table_topics (topic_id medint, forum_id smallint topic_title varchar topic_poster medint) 3. table_forums (forum_id smallint, cat_id medint, forum_name varchar) 4. table_posts (post_id medint, topic_id medint, forum_id smallint, poster_id medint) 5. table_posts_text (post_id medint, post_subject varchar, post_text text) 6. table_users (user_id medint, username varchar)
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Reversing Query Results (not The Same As ORDER BY)
I am trying to reverse the order in which the results of my query are given. I am tweaking a gallery. I need to get the previous 3 pics based on the pic I am looking at. The following code is a simplified version of what I have. The problem is, when I echo the results, the thumbnails are displayed in DESC order (i need them to display in ASC order) but if I order the query using ASC, the query gets the wrong images. SELECT pic_id WHERE pic_id < $current_pic_id ORDER BY pic_id DESC LIMIT 3 I need the results to show like this: oldest pic | older pic | old pic | current pic | new pic | newer pic | newest pic I've got the new pics sorted out but the old pics are causing a little problem... So basically, is there a way that I can reverse the results of my query?
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Mixed ORDER BY Query Results
Is there a way to order a query result a specific way? For instance, I'm querying using WHERE id IN(23, 25, 19) I would like the results to stay in that order instead of by ASC or DESC. Is this possible?
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