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  • What is the efficient way to make a permission system?

    - by WEBProject
    Currently im just using something like: in the DB Table: access: home,register,login and then in each page: if(!Functions::has_rights('content')) { Functions::noAccess(); } is there more efficient way to do it, php & MySQL? i may want to gain access even to several parts a page, for example: user can read a page, but doesnt comment to it, and I dont want to build a separate system to each module. Thanks in advanced, Tal.

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  • how to get latest entry of a item when item have multiple rows?

    - by I Like PHP
    i have an table tbl_exp id| exp_id|qnty| last_update 1 | 12 | 10|2010-05-18 19:34:29 2 | 13 | 50|2010-05-19 19:34:29 3 | 12 | 50|2010-05-19 19:34:29 4 | 15 | 50|2010-05-18 19:34:29 5 | 18 | 50|2010-05-20 19:34:29 6 | 13 | 70|2010-05-20 19:34:29 now i need only latest entry of each exp_id id| exp_id|qnty| last_update 3 | 12 | 50|2010-05-19 19:34:29 6 | 13 | 70|2010-05-20 19:34:29 4 | 15 | 50|2010-05-18 19:34:29 5 | 18 | 50|2010-05-20 19:34:29 please suggest me the mysql query to retrive above result?? thanks!

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  • How to first get different related values from diferent SQL tables (PHP)

    - by Ole Jak
    I am triig to fill options list. I have 2 tables USERS and STREAMS I vant to get all streams and get names of users assigned to that streams. Users consists of username and id Streams consists of id, userID, streamID I try such code: <?php global $connection; $query = "SELECT * FROM streams "; $streams_set = mysql_query($query, $connection); confirm_query($streams_set); $streams_count = mysql_num_rows($streams_set); while ($row = mysql_fetch_array($streams_set)){ $userid = $row['userID']; global $connection; $query2 = "SELECT email, username "; $query2 .= "FROM users "; $query2 .= "WHERE id = '{$userid}' "; $qs = mysql_query($query2, $connection); confirm_query($qs); $found_user = mysql_fetch_array($qs); echo ' <option value="'.$row['streamID'].'">'.$row['userID'].$found_user.'</option> '; } ?> But it does not return USER names from DB=( So what shall I do to this code to see usernames as "options" text?

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  • difference between cn.execute and rs.update?

    - by every_answer_gets_a_point
    i am connecting to mysql from excel using odbc. the following illustrates how i am updating the rs With rs .AddNew ' create a new record ' add values to each field in the record .Fields("datapath") = dpath .Fields("analysistime") = atime .Fields("reporttime") = rtime .Fields("lastcalib") = lcalib .Fields("analystname") = aname .Fields("reportname") = rname .Fields("batchstate") = "bstate" .Fields("instrument") = "NA" .Update ' stores the new record End With the question is why is there a need to run cn.execute after this? havent i already updated the rs with rs.update?

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  • Foreign keys - temporarily bypass?

    - by Industrial
    Hi, I have just started to learn about the pros of foreign keys in database design (mySQL / innoDB) and I wonder if there's any way to temporarily bypass the foreign key when doing a specific delete query, to just delete in the parent table, and not from the linked child tables. Thanks

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  • manage user permissions in php

    - by user420528
    i am creating a marks management system using php & mysqlwhere the concerned faculty will be able to login and enter the marks of the students. i can go with a simple table but the problem is there are 288 different subjects for which marks must be entered. So creating a mysql table with so many subjects does not look good for me. please suggest me the best way to manage user permissions so that only the corresponding faculty will be able to enter marks

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  • Displaying Query Results Horizontally

    - by AndyD273
    I am wondering if it is possible to take the results of a query and return them as a CSV string instead of as a column of cells. Basically, we have a table called Customers, and we have a table called CustomerTypeLines, and each Customer can have multiple CustomerTypeLines. When I run a query against it, I run into problems when I want to check multiple types, for instance: Select * from Customers a Inner Join CustomerTypeLines b on a.CustomerID = b.CustomerID where b.CustomerTypeID = 14 and b.CustomerTypeID = 66 ...returns nothing because a customer can't have both on the same line, obviously. In order to make it work, I had to add a field to Customers called CustomerTypes that looks like ,14,66,67, so I can do a Where a.CustomerTypes like '%,14,%' and a.CustomerTypes like '%,66,%' which returns 85 rows. Of course this is a pain because I have to make my program rebuild this field for that Customer each time the CustomerTypeLines table is changed. It would be nice if I could do a sub query in my where that would do the work for me, so instead of returning the results like: 14 66 67 it would return them like ,14,66,67, Is this possible?

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  • Best way to store data in database when you don't know the type

    - by stiank81
    I have a table in my database that represents datafields in a custom form. The DataField gives some representation of what kind of control it should be represented with, and what value type it should take. Simplified you can say that I have 2 entities in this table - Textbox taking any string and Textbox only taking numbers. Now I have the different values stored in a separate table, referencing the datafield definition. What is the best way to store the data value here, when the type differs? One possible solution is to have the FieldValue table hold one field per possible value type. Now this would certainly be redundant, but at least I would get the value stored in its correct form - simplifying queries later. FieldValue ---------- Id DataFieldId IntValue DoubleValue BoolValue DataValue .. Another possibility is just storing everything as String, and casting this in the queries. I am using .Net with NHibernate, and I see that at least here there is a Projections.Cast that can be used to cast e.g. string to int in the query. Either way in these two solutions I need to know which type to use when doing the query, but I will know that from the DataField, so that won't be a problem. Anyway; I don't think any of these solutions sounds good. Are they? Or is there a better way?

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  • problem in creating a trigger

    - by mohanish
    Hi Bill I am facing a problem in creating a trigger and i am not sure why this is erroring out.can you please help me. I have described the problem in this link below http://forums.mysql.com/read.php?99,365942,365942#msg-365942.

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  • How to set up a database and API web page to accept POST updates from iPhone?

    - by lionfly
    Hi there, I am developing an iPhone app, which now can update Twitter account with GPS coordinates in real-time, by the Twitter API link: http://username:[email protected]/statuses/update.xml , and I am looking at how to make my own database to accept updates from iPhone, via a similar API page. It seems a .php page can serve as the API, and MySQL can serve as the database. What are the good ways of doing it? Any template code and tutorial please?

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  • Very weird jquery/json problem...

    - by Scarface
    Hey guys I have finally located the cause of this problem...I just have no idea how to fix it and why it is happening. I have a jquery getjson function and it returns 0 results every 2-5 clicks on new topics or refreshes. For some reason if I change my query to sort results by ASC it always returns results and much quicker, but this poses a problem since I need results by DESC. If anyone has any ideas, I would greatly appreciate it because I am dumbfounded at this point. Here is my query but I need it by DESC SELECT time, user, message FROM comments WHERE topic_id='$topic_id' ORDER BY time ASC LIMIT 10 $.getJSON(files+"comments.php?action=view&load=initial&topic_id="+topic_id+"&t=" + (new Date()), function(json) { if(json.length) { for(i=0; i < json.length; i++) { $('#comment-list').prepend(prepare(json[i])); $('#list-' + count).fadeIn(1500); } } }); I return results like so while($row = mysql_fetch_array($res)){ $data[] = $row; } $out = json_encode($data); print $out;

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  • how to get latet entry of a item when item have multiple rows?

    - by I Like PHP
    i have an table tbl_exp id| exp_id|qnty| last_update 1 | 12 | 10|2010-05-18 19:34:29 2 | 13 | 50|2010-05-19 19:34:29 3 | 12 | 50|2010-05-19 19:34:29 4 | 15 | 50|2010-05-18 19:34:29 5 | 18 | 50|2010-05-20 19:34:29 6 | 13 | 70|2010-05-20 19:34:29 now i need only latest entry of each exp_id id| exp_id|qnty| last_update 3 | 12 | 50|2010-05-19 19:34:29 6 | 13 | 70|2010-05-20 19:34:29 4 | 15 | 50|2010-05-18 19:34:29 5 | 18 | 50|2010-05-20 19:34:29 please suggest me the mysql query to retrive above result?? thanks!

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  • SDK2 query for counting: which is more efficient?

    - by user1195996
    I have an app that is displaying metrics about defects in a project. I have the option of making one query that returns all the defects, and from that I can break out about four different metrics (How many defects escaped QA in 90 days, 180 days, and then the same metrics again but only counting sev1/sev2 defects). I could make four queries and limit the results to one so that I just get a count for each. Or I could make one query that encompass them all (all defects that escaped QA in 180 days) and then count up the difference. I'm figuring worst case, the number of defects that escaped QA in the last six months will generally be less than 100, certainly less 500 worst case. Which would you do-- four queryies with one result each, or one single query that on average might return 50, perhaps worst case 500? And I guess the key question is-- where are the inflections points? Perhaps I have more metrics tomorrow (who knows, 8?) and a different average defect counts. Is there a rule of thumb I could use to help choose which approach?

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