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  • Database Documentation with `SQL Doc 2`

    - by mehdi lotfi
    I use SQL Doc 2 for documentation my database. But this tools not support following expect : Add diagrams in documentation. Add Additional description for each object such as tables, columns and etc. Customize output format. Add custom link for each object. Add Analyze business description of created tables, columns and etc Some time need to explain records of each table such as records of literal tables. How Can support above request in SQL Doc 2? Do exists a tools for documentation database with above request?

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  • How does Google Analytics save data to a database

    - by Pranz
    Hello everyone, I am making a Google Analytics like project for my school assignment. I have two questions primarily: 1) Exactly when does Google store the data to the database? When it does it use XHR with some server side scripting language to store it to the database or is there a way to do it using plain javascript? 2) How do I get the IP address of a user from Javascript? How does Google do for Analytics?? Thanks for all the help. Pranz

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  • Looking for a good course/book/resource on modern databases

    - by spanky
    This is slightly embarrassing. I'm a professional developer working at one of the big tech companies and I've never used a database. I've got an idea for a website I want to build as a learning experience and possibly as a business, but I don't have the faintest idea what database to use, let alone how to fix/debug the database when I run into problems. I'm looking for a course, a website, a book, etc., that will give me an overview of modern database technology (SQL vs. NOSQL vs. relational vs. non-relational (I only have a vague idea what these even mean)). I'm starting by googling/wikipediaing all of these terms, but if there are better, comprehensive resources available that I should be aware of, I'd love to hear about them.

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  • Best way to access nested data structures?

    - by Blackshark
    I would like to know what the best way (performance wise) to access a large data structure is. There are about hundred ways to do it but what is the most accessible for the compiler to optimize? One can access a value by foo[someindex].bar[indexlist[i].subelement[j]].baz[0] or create some pointer aliases like sometype_t* tmpfoo = &foo[someindex]; tmpfoo->bar[indexlist[i].subelement[j]].baz[0] or create reference aliases like sometype_t &tmpfoo = foo[someindex]; tmpfoo.bar[indexlist[i].subelement[j]].baz[0] and so forth...

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  • Access to File being restricted after Ubuntu crashed

    - by Tim
    My Ubuntu 8.10 crashed due to the overheating problem of the CPU. After reboot, under gnome, all the files cannot be removed, their properties cannot be viewed and they can only be opened, although all are still fine under terminal. I was wondering why is that and how can I fix it? Thanks and regards

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  • Switch role after connecting to database

    - by Chris Gow
    Is it possible to change the postgresql role a user is using when interacting with postgres after the initial connection? The database(s) will be used in a web application and I'd like to employ database level rules on tables and schemas with connection pooling. From reading the postgresql documentation it appears I can switch roles if I originally connect as a user with the superuser role, but I would prefer to initially connect as a user with minimal permissions and switch as necessary. Having to specify the user's password when switching would be fine (in fact I'd prefer it). What am I missing?

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  • Permission based access control

    - by jellysaini
    I am trying to implement permission based access control in ASP.NET. To implement this I have created some database tables that hold all the information about which roles are assigned what permissions and which roles are assigned to what user. I am checking the permissions in the business access layer. Right now I have created a method which checks the permissions of the user. If the user has permissions then okay otherwise it redirects to another page. I want to know if the following things are possible? class User { [PremissionCheck(UserID,ObjectName,OperationName)] public DataTable GetUser() { //coding for user } } I have seen it in MVC3. Can I Create it in ASP.NET? If yes then how can I implement it?

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  • Efficient job progress update in web application

    - by Endru6
    Hi, Creating a web application (Django in my case, but I think the question is more general) that is administrating a cluster of workers doing queued jobs, there is a need to track each jobs progress. When I've done it using database UPDATE (PostgreSQL in this case), it severely hits the database performance, because each UPDATE creates a new row in a table, and in my case only vacuuming DB removes obsolete rows. Having 30 jobs running and reporting progress every 1 minute DB may require vacuuming (and it means huge slow downs on a front end side for all the employees working with the system) every 10 days. Because the progress information isn't critical, ie. it doesn't have to be persistent, how would you do the progress updates from jobs without using an overhead database implies? There are 30 worker servers, each doing 1 or 2 jobs simultaneously, 1 front end server which serves a web application to users, and 1 database server.

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  • RSpec leaves record in test database

    - by DMiller
    Whenever I run a user test, RSpec leaves the Fabricated user in the test database after the test has completed, which is messing up my other tests. I will do a rake db:test:prepare, but when I run my tests again, the record is recreated in my database. I have no idea why this is happening. It only happens with user objects. In my spec_helper file I even have: config.use_transactional_fixtures = true Here is an example test that creates a record: it "creates a password reset token for the user" do alice = Fabricate(:user) post :create, email: alice.email expect(assigns(alice.password_reset_token)).to_not eq(nil) end Fabricator: Fabricator(:user) do email { Faker::Internet.email } password 'password' name { Faker::Name.name } end Could this have anything to do with my users model?

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  • Mercurial repositories hosting with different user access levels

    - by kender
    I want to set a few Mercurial 'central' repositories on one machine. There are few things I need to have working though: Each repository should have its own ACL, with different users allowed to push/pull It shouldn't be ssh-based (it shouldn't require users to have shell accounts on that machine) So, I guess that leaves me with some https with basic authentication, right? Are there any working solutions that provide this kind of functions?

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  • Access shell methods in controller? Cake PHP 1.3

    - by anonymous coward
    I wrote a shell method in CakePHP 1.3 that has a return value. I'd like to be able to access that method from within a controller, so that I can pass its return value into the View. I'm not sure how to access those methods appropriately from within the controller. Have I done it wrong? I could easily duplicate the code, but I'd like to "keep it DRY", and the actual functionality, I believe, doesn't belong with this particular controller - I just need it's return value in this particular view.

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  • couchdb: one database per account vs all in one database w. a namespace / property

    - by thruflo
    I'm modelling a document generation system in couchdb. It semi-automates the production of proposal and presentation documents from managable document fragments. Much like, say, Basecamp, it breaks down very simply into self-contained data per 'account'. Each account has multiple users, projects, documents, etc. However, nothing should be shared between accounts. I can see two ways of doing this: one couchdb database per account use a namespace / property to identify the account It seems to me that the first approach is conceptually sound and potentially has security and partitioning advantages. However, it seems to me to restrict some cross-database data querying (that I don't have a use case for now but you never know...) and to make updating views potentially require an awful lot of writes. Does anyone experienced with this kind of decision have any advice?

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  • get data from database by manually giving the server name

    - by syedsaleemss
    Im using c# .net windows application form. I have created many databases with many tables in each. I have a datagrid view and a display button. when i click on this button, the system must prompt me to enter the server name and after typing the server name, it should display all the databases related to that server in some combo box. and again if i select a database it should show all the tables present in that database into a combobox. and if i select a table, it should prompt an option to select only required columns into the datagridview. How can i do this?

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  • Access attribute values of empty element tag in xml

    - by meenakshik
    Hello, I have a xml where I got some empty complex elements and I need to access the attribute values of this element. <test> <a> <abc-metadata name="testData" value="This is a test"/> </a> </test> I want to get hold of the 'testData' and 'This is a test' values. I do read the document and I tried accessing it document.getElementsByTagName . I am sure there is some way to access attributes of element tags but somehow it throws me nullpointer exception. Thanks in advance

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  • PHP: reusing database class

    - by citricsquid
    Hi, I built a class that allows me to do: $db->query($query); and it works perfectly, although if I want to do: $db->query($query); while($row = $db->fetch_assoc()){ $db->query($anotherquery); echo $db->result(); } it "breaks" the class. I don't want to constantly have to redeclare my class (eg: $seconddb = new database()), is there a way to get around this? I want to be able to reuse $db within $db, without overwriting the "outside" db. currently I'm create an array of data (from db-fetch_assoc() then doing a foreach and then doing the db call inside that: $db->query('SELECT * FROM table'); while($row = $db->fetch_assoc()){ $arr[] = $row; } foreach($arr as $a){ $db->query(); // query and processing here } Is this the best method or am I missing the obvious? Should I consider passing a connection link ID with the database connection?

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  • Access dynamically generated control from code behind

    - by user648922
    I load a piece of html which contains something like: <em> < input type="text" value="Untitled" name="ViewTitle" id="ViewTitle" runat="server"> </em> into my control. The html is user defined, do please do not ask me to add them statically on the aspx page. On my page, I have a placeholder and I can use LiteralControl target = new LiteralControl (); // html string contains user-defined controls target.text = htmlstring to render it property. My problem is, since its a html piece, even if i know the input box's id, i cannot access it using FindControl("ViewTitle") (it will just return null) because its rendered as a text into a Literal control and all the input controls were not added to the container's control collections. I definitely can use Request.Form["ViewTitle"] to access its value, but how can I set its value?

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