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• Spotlight search with PHP

  - by htf

  Hi. I want to add a spotlight search functionality - search results being displayed with rich contents like thumbnail etc in a drop down menu changing on each keyup event - just like the apple.com search - to a site, having data in MySQL InnoDB tables. The data is spread into separate tables for categories, help pages, blog pages and so on. The search script must take into account just a subset of columns. Since it seems to be a popular demand, I guess there are some PHP search engine projects (preferably open-source and with memcached support), which could be integrated into the existing system on the basis of regular exports of relevant data from the working db/tables. Are there any solutions out there? Which one would you recommend? Or maybe it would be better to implement it the other way around? Thanks

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• aspnet_regsql not working at all

  - by user252160

  I would like to create the ASP.NET User database template on a database of my own, because I'd like to fully untegrate the user system with the rest of my DB. As I've read, i needed to use the aspnet_regsql tool. I put all the options (because my database is running on SQLEXPRESS and is in an mdf file in my project's folder). the program starts and seemingly runs without any errors, however, when I open the database after that, not tables or stored procedures have been added. One more thing: I did one more test. I intentionally gave the -d option a wrong mdf file address, and surprisingly, the program "finished" correctly, yet no file was crated or modified whatsoever.

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• Populate DataGridViewComboBoxColumn runtime

  - by ghiboz

  Hi all! I have this problem: I have a datagridview that reads the data from a db and I wish, for an integer column use a combobox to choose some values... I modified the column using DataGridViewComboBoxColumn type and after, on the init of the form this: DataTable dt = new DataTable("dtControlType"); dt.Columns.Add("f_Id"); dt.Columns.Add("f_Desc"); dt.Rows.Add(0, "none"); dt.Rows.Add(1, "value 1"); dt.Rows.Add(2, "value 2"); dt.Rows.Add(3, "value 3"); pControlType.DataSource = dt; pControlType.DataPropertyName = "pControlType"; pControlType.DisplayMember = "f_Desc"; pControlType.ValueMember = "f_Id"; but when the program starts (after this code) this message appears:

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• NHibernate and SetSessionAuth audit columns

  - by user86431

  We have audit columns set by triggers. For obscure security reasons predating my tenure and out of my control, we log in with a generic user, and do a 'set session authorization' to change the user to the db user of the user who is logged in. When we converted to NHibernate, it creates a whole new session and jacks everything up when we try to do a set session auth, so we turned the set session auth off... Now we are trying to find out a way to get NHibernate to let us do 'set session authorization' without recycling the session on us, so we can use our existing trigger based audit column stuff with both legacy apps, and our new NHibernate apps. It's not a ideal soloution, or the best way to do it even, but is it possible? I was hoping there was a alternate interface that allowed this kind of access. Does anyone know how to do it, or can you point me towards and good hints? Thanks, Eric-

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• measuring performance - using real clicks vs "ab" command

  - by shanyu

  I have a web site in closed beta, developed in Django, runs with Mysql on Debian. In the last few days, the main page has been showing a slowdown. For every ten clicks, one or two receives extremely slow response (10 secs or more), others are as fast as they used to be. When I was searching for the problem, I ran into this issue that I couldn't grasp: top command shows that when I request the main page, mysql shoots up to 90% - 100% cpu usage. I get the page just as the cpu use gets back to normal. So, I thought, it is db. Then I called ab with parameters -n 1000 -c 5, I got decent performance, about 100 pages per second, just as it was before the slowdown. I would imagine a worse performance as 10-20% of requests take 10 secs to load. Is this conflict between ab and "real" clicks normal, or am I using ab in a wrong configuration?

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• "conveyor belt" cache architecture

  - by Andrew Matthews

  I'm producing an application with a few peculiar internal communication characteristics that make the usual suspects for data storage and transport (Qs and RDBMSs) ill-fitted. I'm wondering whether there is a product out there that matches the following characteristics: all data put into it is peristent all reads are delivered out of memory data is universally available data lives where it is most needed data is versioned (nice to have) updates are transactional (I'd like ACID characteristics) data is potentially replicated, but always in sync works on windows is based on or has bindings for .NET is really fast is really robust is redundant is scalable I'm looking at things like Microsoft codename "Velocity", but I am not sure whether it fits all of the above characteristics. Likewise, Memcached is not a perfect fit either. The current version of this app opts for an RDBMS with a signaling system for inter-system sync, but latency is too high and versioning of the DB is a pain. I need all the robustness, but with none of the trade-offs.

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• Adjusting Timezone - Convert XML DateTime to SQL DateTime

  - by noob.spt

  We are using TypedDataSet in our application. Data is passed to procedure in form of XML for insert/update. Now after populating DE with data, datetime remains the same though timezone information is added as below. Date in DB: 2009-10-29 18:52:53.43 Date in XML: 2009-10-29T18:52:53.43-05:00 Now when I am trying to convert below XML to SQL DateTime it is adjusting 5 hours and I am getting 2009-10-29 23:52:53.430 as the final output, which is wrong. Need to find a way to extract datetime from below XML snippet ignoring timezone. I have XML in following format, with timezone difference -05.00 <Order> <EnteredDateTime>2009-10-29T18:52:53.43-05:00</EnteredDateTime> </Order>

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• How to schedule a cron job to backup a MySql database every week?

  - by KevinM

  What is a command line I can use to back up a MySql database every single week into a file name with the date (so that it doesn't collide with previous backups)? Also, is this a reasonable backup strategy? My database is relatively small (a complete export is only 3.2 megs right now). The churn rate is relatively low. I need to be able to get the complete DB back if something goes wrong. And it would be extra cool if there's a way that I could see the changes that occur across a time span.

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• Mapping an Array to a Single Row

  - by João Bragança

  I have the following classes: public class InventoryItem { private Usage[] usages = new Usage[12]; virtual public Usage[] Usages { get { return usages; }} virtual public string Name{get;set;} } public class Usage { virtual public double Quantity{get;set;} virtual public string SomethingElse{get;set;} } I know that Usages.Length will always be 12. I think it would be best to store it in the DB like so: Name nvarchar(64), Usage_Quantity_0 float, Usage_SomethingElse_0 nvarchar(16), Usage_Quantity_1 float, Usage_SomethingElse_1 nvarchar(16), ... Usage_Quantity_11 float, Usage_SomethingElse_11 nvarchar(16), How can I get this done?

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• MySQL storing negative and positive decimals

  - by Shishant

  Hello, I want to be able to store -11.99 and +11.99 kind of values in mysql db I am thinking of decimals instead of varchar. But reading mysql site I found out that its incompatible with older versions of mysql As a result of the change from string to numeric format for DECIMAL storage, DECIMAL columns no longer store a leading + or - character or leading 0 digits. Before MySQL 5.0.3, if you inserted +0003.1 into a DECIMAL(5,1) column, it was stored as +0003.1. As of MySQL 5.0.3, it is stored as 3.1. For negative numbers, a literal - character is no longer stored. Applications that rely on the older behavior must be modified to account for this change. So what should be the data type, If I have to give up varchar and make it compatible with older versions too?

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• FOP Encoding issue

  - by Ravi chandra

  Hi Guys, I have a similar issue.. I have HTML stored in DB clob. I am retrieving that and converting to XHTML using TIDY.jar. Once i got XHTML then using FOP i am converting to XSL-FO. Finally XSL-FO is rendering in PDF. Previously everything is working fine with Linux-WAS5-java1.4. Recently we migrated the apps to Linux-WAS6-Java1.5. Now XHTML to XSL-FO is messing up everything. XSL-FO contains ???(Question marks) in the place of Euro, spase(nbsp), Agrave, egrave ..etc. I tried changing the JVM encoding to UTF-8 and also i have modified my servlet request and response to support UTF-8. I am helfless and unable to figure where exactly the issue is coming out. Can someone please check this and suggest me some solution. Thanks in advance

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• MySQL indexes: how do they work?

  - by bob-the-destroyer

  I'm a complete newbie with MySQL indexes. I have several MyISAM tables on MySQL 5.0x having utf8 charsets and collations with 100k+ records each. The primary keys are generally integer. Many columns on each table may have duplicate values. I need to quickly count, sum, average, or otherwise perform custom calculations on any number of fields in each table or joined on any number of others. I found this page giving an overview of MySQL index usage: http://dev.mysql.com/doc/refman/5.0/en/mysql-indexes.html, but I'm still not sure I'm using indexes right. Just when I think I've made the perfect index out of a collection of fields I want to calculate against, I get the "index must be under 1000 bytes" error. Can anyone explain how to most efficiently create and use indexes to speed up queries? Caveat: upgrading Mysql is not possible in this case. Using Navicat Light for db administration, but this app isn't required.

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• Making form submissions unique using PHP and HTML

  - by canadiancreed

  Hello all I'm currently developing a page where the user fills out a form, and when submitted they are taken to the next page. When on the next page, I want to have it so that if the user went back to the previous page using the back button, or hit refresh, the submission will not be saved into the DB. Now I recall reading somewhere that if you had a way to make each submission unique, this issue is averted, but after screwing around for hours on end, for the life of me I cannot recall how this could be done (using PHP), so long story short has anyone ran into this, and if so, what was your solution?

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• Invoices for Printing in MS-Access

  - by Nitrodist

  The application that I'm currently working on has a funky set up for the invoices that they print. The form is the invoice that is printed out. I took a look at the Northwind DB and what it does is and it actually generates a report based on the record's information. What are the limitations of using Forms vs. Reports for printing out reports? One of the limitations that I've run into so far is that the printed page is jam packed with information (all required) to fit on a single page, yet there is lots of wasted space for some stuff since elements on the page don't shrink or grow due to what's inputted into the textboxes. How are invoices designed for your applications? How do you handle space restraints for creating invoices?

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• Zend Framework Error:Invalid parameter number: no parameters were bound'

  - by roast_soul

  I'm using the Zend Frameworker 1.12. According to the help file, I used the Zend_Db_Statement to execute my sql. Below is my php code: $sql = "delete from options where id=?"; $stmt = new Zend_Db_Statement_Mysqli($this->getAdapter(), $sql); return $stmt->execute(array('1')); But the error is exception 'PDOException' with message 'SQLSTATE[HY093]: Invalid parameter number: no parameters were bound' in D:\Zend\workspaces\DefaultWorkspace.metadata.plugins\org.zend.php.framework.resource\resources\ZendFramework-1\library\Zend\Db\Statement\Mysqli.php:209 Stack trace: ......... ......... I googled for days, but nothing works. Any one know how to fix it?

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• SQL Server Query Slow from PHP, but FAST from SQL Mgt Studio - WHY???

  - by Ray

  I have a fast running query (sub 1 sec) when I execute the query in SQL Server Mgt Studio, but when I run the exact same query in PHP (on the same db instace) using FreeTDS v8, mssql_query(), it takes much longer (70+ seconds). The tables I'm hitting have an index on a date field that I'm using in the Where clause. Could it be that PHP's mssql functions aren't utilizing the index? I have also tried putting the query inside a stored procedure, then executing the SP from PHP - the same results in time difference occurs. I have also tried adding a WITH ( INDEX( .. ) ) clause on the table where that has the date index, but no luck either. Here's the query: SELECT 1 History, h.CUSTNMBR CustNmbr, CONVERT(VARCHAR(10), h.ORDRDATE, 120 ) OrdDate, h.SOPNUMBE OrdNmbr, h.SUBTOTAL OrdTotal, h.CSTPONBR PONmbr, h.SHIPMTHD Shipper, h.VOIDSTTS VoidStatus, h.BACHNUMB BatchNmbr, h.MODIFDT ModifDt FROM SOP30200 h WITH (INDEX (AK2SOP30200)) WHERE h.SOPTYPE = 2 AND h.DOCDATE >= DATEADD(dd, -61, GETDATE()) AND h.VOIDSTTS = 0 AND h.MODIFDT = CONVERT(VARCHAR(10), DATEADD(dd, -1*@daysAgo, GETDATE()) , 120 ) ;

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• Loading tables dynamically with NHibernate

  - by Trevor Goertzen

  I'm working on a project that requires me to load tables based on table names stored in another table. More tables will be added to the DB (and by someone else), so creating NHibernate mapping files for each table isn't an option. Does anyone know if it is possible to load tables dynamically using NHibernate? Edit: I should add that I'm on .NET 2.0, so I can't use Fluent NHibernate. Thanks for the suggestion though guys. I will use that as evidence in convincing my associates to upgrade.

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• Parsing a CSV File to a Rails Database

  - by Schroedinger

  G'day guys, I'm using fasterCSV and a rake script to parse a csv with about 30 columns into my rails db for a 'Trade' item. The script works fine when all of the values are set to strings, but when I change it to a decimal, int or other value, everything goes to hell. Wondering if fasterCSV has built in int etc parsing or whether I'll have to manage these within my model. Basically, I'm given a giant amount of trades data, need to import it, and then need to provide feedback with say the average trade volume, the times, etc. I understand I can do that all with the wonderful records provided to me by activeRecord but wondered if there was an easier way to populate a rather large Database with a given CSV? Several of the fields don't have values for certain rows, fasterCSV seems to work perfectly when they're all strings, but not when I try to get decimal or other.

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• Unable to connect to sql database only from asp

  - by Brian

  In a VB6 program: Dim conn As Object Set conn = CreateObject("ADODB.Connection") conn.Open "DRIVER={SQL Server}; Server=(local)\aaa; Database=bbb; UID=ccc; PWD=ddd" In an ASP program: Sub ProcessSqlServer(conn) Set conn = Server.CreateObject("ADODB.Connection") conn.Open "DRIVER={SQL Server}; Server=(local)\aaa; Database=bbb; UID=ccc; PWD=ddd" The VB6 program works, the ASP program does not (see error below). I tried checking the event log for errors, but found nothing. Or more precisely, I did find local an activation permission error, but this was fixed once I added local launch/activation permission for Network Service to the Machine Debug Manager via the component services tool. Error: Microsoft OLE DB Provider for ODBC Drivers error '80004005' [Microsoft][ODBC SQL Server Driver]Timeout expired

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• create cookie in web method

  - by quantum62

  i have a web method that check user in data base via a jquery-ajax method i wanna if client exists in db i create a cookie in client side with user name but i know that response is not available in staticmethod .how can i create a cookie in a method that call with jquery ajax and must be static. its my code that does not work cuz response is not accesible if (olduser.Trim() == username.Trim() && password.Trim()==oldpass.Trim()) { retval =olduser; HttpContext context = HttpContext.Current; context.Session[retval.ToString()] = retval.ToString(); HttpCookie cook = new HttpCookie("userath"); cook["submituser"] = "undifiend"; Response.Cookies.Add(cook); }

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• [Wordpress] How do I return values from custom created meta box?

  - by Steven

  I've just followed this example from Wordpress and I have successfully added an extra Meta Box in Post interface, and the value is stored in DB. Now my question is, how can I retrieve and display the content of this meta box? I'm trying the following code: $intro = get_post_meta($post->ID, 'post_intro', true); echo $intro; But I get nada. What am I doing wrong? And while I'm here, does anybody know if I can place this extra meta box above the default text box in Wordpress post page?

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• MySQL JDBC date issues with database server in different timezone

  - by Somatik

  I have a database server in "Europe/London" time zone and my web server in "Europe/Brussels". Since it is summer time now my application server has a 2 hour difference. I created a test to reproduce my issue: Query q = JPA.em().createNativeQuery("SELECT UNIX_TIMESTAMP(startDateTime) FROM `Event` WHERE `id` =574"); BigInteger unix = (BigInteger) q.getSingleResult(); System.out.println(unix + "000 UNIX_TIMESTAMP to BigInteger"); Query q2 = JPA.em().createNativeQuery("SELECT startDateTime FROM `Event` WHERE `id` =574"); Timestamp o = (Timestamp) q2.getSingleResult(); System.out.println(o.getTime() + " Timestamp"); The startDateTime column is defined as 'datetime' (but same issue with 'timestamp') The output I am getting is this: 1340291591000 UNIX_TIMESTAMP to BigInteger 1340284391000 Timestamp Reading java date objects results in a shift in time zone, how do I fix this? I would expect the jdbc driver to just set the "unix time" value it gets from the server in the Date object. (a proper solution should work with any timezone combination, not only for db in GMT)

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• work with rescue in Rails

  - by Adnan

  Hi, I am working with the following piece; def index @user = User.find(params[:id]) rescue flash[:notice] = "ERROR" redirect_to(:action => 'index') else flash[:notice] = "OK" redirect_to(:action => 'index') end Now I either case whether I have a correct ID or not, I am always getting "OK" in my view, what am I doing wrong? I need that when I have no ID in the DB to show "ERROR". I have also tried to use rescue ActiveRecord::RecordNotFound but same happens. All help is appreciated.

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• When does a MySQL Query actually execute in PHP?

  - by MJB

  This sounds like a really simple question, but I am new to PHP. If I have a statement like this: $r =& $db->query("insert into table (col1, col2) values (10, 20)"); Do I have to still execute it, or does it get executed when I reference it? I have another case where I have a select query, which seems logically to run only when I call fetchrow, but the code I am presented with (to fix) does not call execute or fetch.I would have expected it to, so I cannot tell if it is just that I don't get it, or that the missing execute statement is the problem. It also does not insert the record, but it does not throw an error I can find. Also, I am a little confused by the =& notation. I looked it up on google, and found a few mentions of it, but I am still not clear on it. Thanks.

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• locking database record for editing

  - by sd_dracula

  I have a SQL 2008 DB and an asp.net frontend. I would like to implement a lock when a user is currently editing a record but unsure of which is the best approach. My idea is to have a isLocked column for the records and it gets set to true when a user pulls that record, meaning all other users have read only access until the first user finishes the editing. However, what if the session times out and he/she never saves/updates the record, the record will remain with isLocked = true, meaning others cannot edit it, right? How can I implement some sort of session time out and have isLocked be automatically set to false when the session times out (or after a predefined period) Should this be implemented on the asp.net side or the SQL side?

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