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  • How to generate a random but unique number and display that number within the source of my image tag

    - by Matthew
    Hello guys, I have done some searching but really haven't found what I'm looking for. What I would like to do is generate a random BUT unique 5 digit number and push whatever number into an img tag on my page. For example when people come to my page this number would generate and get pushed into this image tag: <img src="http://www.sample.com?randomNUM=12345" height="1" width="1" /> I have a mySQL DB and am looking to do this in PHP. Thank, Matt

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  • special characters strange behavior

    - by andufo
    Hi, i have this string in my utf-8 mysql DB: "Pruebá de eñes" When i print it like plain text, everything works ok, but if i load that same field inside an input, textarea, etc, it becomes: "Pruebá de eñes" How can i solve this problem? =(

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  • Whats better query with long where in condition or many small queries?

    - by DCrystal
    Maybe it's a little dumb, but i'm just not sure what is better. If i have to check about 30k rows in db for existanse, what i'd do? #1 - one query select id from table1 where name in (smth1,smth2...{till 30k}) #2 - many queries select id from table1 where name=smth1 Though, perfomance is not the goal, i don't want to go down with mysql either ;) Maybe, any other solutions will be more suitable... Thanks.

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  • Serialize checkbox array, also get checkboxes with off-value

    - by guzh
    Hi, I was wondering if this is possible. The serialize-string will be inserted in a mySQL-database, so it would be fine if all checkboxes would be inserted and not only the ones that is ticked(on). it's possible to make on column in the database for each of the checkboxes, and use this if/else-statement: if(isset($_GET['checkbox'])) { // It's checked! } else { // not checked! } but its a bit unappropriate...

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  • what's the best practice to config Hibernate-Spring for multiple database relationship?

    - by nazila
    We have a main mysql database which all of the applications within our organization need the data within this database. How can I config my java web application to use this database with it's specific database when I use Spring and Hibernate within my application? How can I config JPA annotations for example between CONTRACT table within my database and COUNTRY table within our main database? what's the best practice to do this?

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  • What is the standard way to deploy memcached?

    - by Tom
    I have two IIS servers and two MySQL servers. On all servers I have some available memory (More than a GB). What is the standard way to deploy memcached? Should I add a new server especially for memcached, or should I use my existing servers? If so, which servers? Thanks in advance

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  • Installing databases after installation of server.

    - by claws
    Hello, I my software I need the client to install a database server (MySQL in my case). I'm deploying the setup and making user install it like a pre-requisite. After installing the DBMS server. I need to setup databases (that I created) on the client machine. How to do this automatically (as part of installation.)?

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  • MySQLDump without locking the tables

    - by Raul Singahn
    It seems that if you have many tables, you can only perform a MySQLDump without locking them all, otherwise you can an error. What are the side effects of performing a MySQLDump without locking all the tables; Is the DB snapshot I get this way, consistent? Do I have any other alternative for getting a backup of a MySQL DB with many tables?

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  • php cookies block access to directories

    - by user342391
    I have a mysql database of users that can login to my site and view content. I would like to block a couple of directories from certain users. What is the best way to do this. Currently when a user logs in a cookie is created with their customer id and the customer is is used to display their content. How would I block entire directories from my users???

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  • How to split records per hour in order to display them as a chart?

    - by Axel
    Hi, I have an SQL table like this : sales(product,timestamp) I want to display a chart using Open Flash Chart but i don't know how to get the total sales per hour within the last 12 hours. ( the timestamp column is the sale date ) By example i will end up with an array like this : array(12,5,8,6,10,35,7,23,4,5,2,16) every number is the total sales in each hour. Note: i want to use php or only mysql for this. Thanks

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  • filter duplicates in SQL join

    - by Will
    When using a SQL join, is it possible to keep only rows that have a single row for the left table? For example: select * from A, B where A.id = B.a_id; a1 b1 a2 b1 a2 b2 In this case, I want to remove all except the first row, where a single row from A matched exactly 1 row from B. I'm using MySQL.

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  • Why are there so many DB management Systems ?

    - by mr.bio
    Hi there , i always asked myself. Why are there so many DB management systems? I am not an DB expert and i never thought about using another DB than mysql. Programming languages offer different paradigms, so there it makes sense to choose a specific language for your purpose. What are factors to choose a specific DB management system ?

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  • Search relevance from XML docs (XQuery?) vs MySQL

    - by Marius
    Hello there, I have a website where documents are saved in xml documents, all with the same structure. I need a search engine where I am able to choose documents with the highest relevance according to the key words given by a searching user. I thought it could (?) be a good idea to have one using XQuery rather than having the information stored twice (in XML docs + mysql database) and querying the mysql database for relevance searches. Is XQuery any good for this, and how, and what speed can I expect on +1000 documents of about 7kb each. Thank you for your time. Kind regards

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  • table outputs blank rows on the browser

    - by fusion
    following the answer here, altho it solved my problem, it displays a blank table. .something like this. the data does get inserted in the mysql but the table displays nothing. the codes are posted on the above link. your help would be appreciated. thanks!

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  • question about group by

    - by chun
    Hi in mysql how to write a sql like this, to get the amount of X 20 and <20 select date, numberOfXMoreThan20,numberOfXLessThan20, otherValues from table group by (date, X20 and X<20) thanks

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  • Sun webstack vs Installing PHP, MySQL, Apache individually

    - by Vincent
    Is it possible to install PHP, MySQL, Apache individually on Solaris instead of installing them through a webstack? What are the advantages and disadvantages? I seem to frequently get a CURL error on Solaris when dealing with HTTPS sites. (error:81072080:lib(129):func(114):reason(128). I have no clue why that error is occuring and thought it might solve it, if I upgrade to latest PHP,MySQL,Apache versions. At this point I am not even sure if it's a Solaris issue. Any advice? Thanks

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  • CakePHP - Paginate / Query: find lowest of multiple fields & order by it

    - by Atea
    I am using CakePHP for a price-comparison website. I have a table products with fields: id, pride_regular, price_action. I would like to combine the fields price_regular and price_action into a dynamic field: price. The lowest value of these two fields should be the value of the new price field. Also I want to order on it Ascending. Should I use a custom MySQL-query?

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  • Order by Domain Extension Name using CodeIgniter Active Record Class

    - by allan
    $extension = “SUBSTRING_INDEX(domain_name, ‘.’, -1)”; $this->db->order_by($extension, “asc”); It says: 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 ‘asc LIMIT 50’ at line 44 But its working when I didn’t used the $this-db-order_by Active Record Class such as this one: $this-db-query(“SELECT * FROM domain ORDER BY SUBSTRING_INDEX(domain_name, ‘.’, -1)”); Anyone please help me. Thanks.

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