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• single page javascript send data AND pull data from mysql via php?

  - by David19801

  Hi, I am trying to make a dynamic form which retrives data. How can I use javascript to load a value from a mysql database? I understand that it must use php in some way, and I know how to query the database and assign the value to a php variable, but I have no idea what to do after that...any advice? the goal is to have someone enter their orderid say, then the datbase auto pulls down and enters their last invoice in the field below it after they click GO...

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• How to display mysql rows that contain certain data?

  - by user272899

  I have a table in mysql with a row called 'newrelease'. If the item is a new release my form posts it as 'yes' if no 'no'. How would i display all items that contain the data 'yes'? $query = "SELECT * FROM movielist ORDER BY newrelease DESC LIMIT 4";

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• How can i found out if there is transaction open in MySQL?

  - by praksant

  How can i find out if there is transaction open in mySQL? I need to start new one if there is no transaction open, but i don't want to start new one if there is one running, because that would commit that running transaction.

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• How do I change mysql settings so that it is default UTF-8 for everything?

  - by alex

  I am getting "ASCII encoding" errors when I insert into my database because I did a fresh install of the MYSQL. I'd like to change the default to UTF-8 again.

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• Problems with first argument being string when overloading the + operator in C++

  - by Chris_45

  I have an selfmade Stringclass: //String.h String & operator = (const String &); String & operator = (char*); const String operator+ (String& s); const String operator+ (char* sA); . . //in main: String s1("hi"); String s2("hello"); str2 = str1 + "ok";//this is ok to do str2 = "ok" + str1;//but not this way //Shouldn't it automatically detect that one argument is a string and in both cases?

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• [C# n MySQL] Creating a database using Connector/NET Programming?

  - by yeeen

  How to create a database using connector/net programming? How come the following doesn't work? string connStr = "server=localhost;user=root;port=3306;password=mysql;"; MySqlConnection conn = new MySqlConnection(connStr); MySqlCommand cmd; string s0; try { conn.Open(); s0 = "CREATE DATABASE IF NOT EXISTS `hello`;"; cmd = new MySqlCommand(s0, conn); conn.Close(); } catch (Exception e) { Console.WriteLine(e.ToString()); }

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• Possible to View Value of Script Variable in MySQL Query Browser's Script Window?

  - by Eric J.

  When stepping through a script in MySQL Query Browser's script window, is there any way to view the value of a variable I have just assigned? Specifically I do an update on one line, and then: SET @Num=row_count(); While debugging the script, I would like to be able to know the value of @Num

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• mySQL: How many rows in a table before performance is affected?

  - by Industrial

  Hi everybody, Is there a "known limit" for columns & rows in a mySQL table that when passed, it can be safe to say that performance is severely affected? I've think that I had heard that there is a "golden number" that you really dont want to exceed in either columns or rows in a table. - Or is it all about the size of the index and available RAM + CPU on the server? Thanks!

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• Wait 30 seconds in order to allow a new action on PHP and MySQL ???

  - by DomingoSL

  Hello, in my web page a user fill a form who send information to a MySql database. One of the data inputs sent is a date/time, in the format date('l jS \of F Y h:i:s A'); (I can change the format as needed) So when the user submits the form i wanna check if the actual time/date is 30 seconds more than the sent time/date in order to allow or not the submission of the form. Thanks!

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• Real World Examples of read-write in concurrent software

  - by Richard Fabian

  I'm looking for real world examples of needing read and write access to the same value in concurrent systems. In my opinion, many semaphores or locks are present because there's no known alternative (to the implementer,) but do you know of any patterns where mutexes seem to be a requirement? In a way I'm asking for candidates for the standard set of HARD problems for concurrent software in the real world.

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• Will MySQL full-text-search return the results I need?

  - by mike

  I have a keyword field with a list of 5 keywords for each item. example below: 2008, Honda, Accord, Used, Car Will MySQL full text return the item above for the following search requests? 2008 Honda Accord Honda Accord Used Car If so, how well will this hold up when searching through fifty thousand plus records?

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• Which is faster for small web projects - MySQL or Oracle?

  - by Dreshna

  Hi Which is generally faster for small web projects - MySQL or Oracle? Please provide some proof (benchmarks or any other) of your opinion.

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• How to quickly re-sort a MySQL table by one of the columns?

  - by Vacilando

  What are the most efficient SQL queries that would take an existing MySQL table and re-sort it by one of the columns? Not a selection, but the whole table should be sorted by one column. Somehow using a temporary table, I guess, but what's the best way?

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• Java / MySQL - How to access connection from another class?

  - by Alex

  I'm just getting my head around java (and OOP for that matter), the only thing I am familiar with is MySQL. I need to keep the DB connection open throughout the duration of the application, as well as a server socket. I'm not even sure if they both need separate classes, but here's what I have so far: http://pastebin.com/qzMFFTrY (it wouldn't all go in a code tag) The variable I need is con for line 86.

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• Decrypting an AES encryted column in mysql and adobe flex/flash builder?

  - by user345593

  How do i decrypt an aes encryted column when using flash/flex to display the table data? adobe flex connected using php connection class to mysql for php, we would use aes_decrypt() however i am not sure how i can get flex to do this.

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• Why does String.Equals(Object obj) check to see if this == null?

  - by m-y

  // Determines whether two strings match. [ReliabilityContract(Consistency.WillNotCorruptState, Cer.MayFail)] public override bool Equals(Object obj) { //this is necessary to guard against reverse-pinvokes and //other callers who do not use the callvirt instruction if (this == null) throw new NullReferenceException(); String str = obj as String; if (str == null) return false; if (Object.ReferenceEquals(this, obj)) return true; return EqualsHelper(this, str); } The part I don't understand is the fact that it is checking for the current instance, this, against null. The comment is a bit confusing, so I was wondering what does that comment actually mean? Can anyone give an example of how this could break if that check was not there, and does this mean that I should also place that check in my classes?

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• Given a Date "03/13/2010", using that in a MYSQL Where Clause?

  - by nobosh

  I would like to pass a MYSQL query via Coldfusion the following date: 03/13/2010 So the query filters against it like so: SELECT * FROM myTable WHERE dateAdded before or on 03/13/2010 I'd also like to be able to take 2 dates as ranges, from: 01/11/2000, to: 03/13/2010 SELECT * FROMT myTable WHERE dateAdded is ON or Between 01/11/2000 through 03/13/2010 thanks

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• Can i insert an image in a MYSQL DB table?

  - by Shinigami

  is there a way to insert pics(not url,the pic)into a MYSQL table made with phpmyadmin? and if there is when i want to get that picture and insert it in the page , what should i do? :)

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• How do I do this query in MysQL? (datetime)

  - by alex

  Suppose I have a datetime column in MySQL. How do I select all that have a datetime within 2500 seconds of the current datetime? SELECT ALL where current_datetime - that_datetime < 2500 ...

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• can we build ASP.NET MVC based on MYSQL database?

  - by sam

  Hi Guys, Can we build ASP.NET MVC based on MYSQL database? if yes, is there any article availabe? thanks

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• How to upload 10 Gb of data to MySQL programmatically without crashing like on PHPMyAdmin?

  - by asksuperuser

  I'm very surprised that it seems impossible to upload more than a few megabytes of data to mysql database through PHPMyAdmin whereas I can upload a msaccess table easily up to 2 Gigabytes. So is there any script in php or anything that can allow to do so unlike phpmyadmin ?

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• How to turn string into readable by php server way? (?#)

  - by Ole Jak

  So I know that my server on real form submit turns %CE%EB%E5%E3+%DF%EA%F3%F8%EA%E8%ED into ???? ??????? . How to peform string transfer from ???? ??????? into %CE%EB%E5%E3+%DF%EA%F3%F8%EA%E8%ED using C#?

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• How do you query a MySQL table columns highest entry and store it in a variable.

  - by user315819

  How do you query a MySQL table columns highest entry and store it in a variable. Here is what I have but it is not working. $query = "SELECT MAX(date) FROM Records WHERE ips='$currentip'"; $result = mysql_query($query) or die(mysql_error()); echo $result;

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• How should I structure my settings table with mysql?

  - by incrediman

  I want to use MySQL to store a bunch of admin settings - what's the best way to structure the table? Like this? Setting _|_ Value setting1 | a setting2 | b setting3 | c setting4 | d setting5 | e Or like this? |--------|_setting1_|_setting2_|_setting3_|_setting4_|_setting5_| Settings | a | b | c | d | e | Or maybe some other way?

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• What's the best way to store sensative data in MySQL?

  - by embedded

  I'm managing the MySQL database from PHP scripts. the communication between server and client is secured via SSL. I store user account data which is sensitive. Is there a way to encrypt this data when entered into the DB? What is the best way to protect this sensitive data? Thanks

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