I am working on a web application(using PHP) which will use MySQL database in initial stage & once it gets ready, I will use same application to connect Remote MSSQL database & not the MySQL database. Any suggestion which standards I will have to keep in mind before developing this application so that it remaining flexible & I will just have to make few configuration changes in application when transferred from MySQL to MSSQL ?
Check out the php PDO extension. Using this you should be able to easily transfer your code to use the new database by just changing your connection parameters.
Related
I am trying to setup remote access to the data of Sage 100 Advanced ERP for use within a website running on a MySQL database. I only need to get inventory levels for products, so it's a read-only application.
As I understand it, Sage 100 comes with an ODBC driver that can allow remote access to Sage's flat-file data storage by creating a database view. What I need to do is copy a few fields from that data on the Sage server over to the web server hosting the website.
To automate this process, I assume I'll need to setup a cron job on the web server that runs a PHP script (preferred language) executing SQL queries that connect to the remote server, extract the needed data, and write it to the appropriate tables in the MySQL database. I'm fine with that last step, but I'm unsure of the steps to connect and retrieve data from the ODBC data source.
How can I connect to and extract Sage 100 data from an ODBC Data Source to write to a MySQL Database on another server?
Or, is there a way to sync/mirror the ODBC Data Source to a MySQL Database on a separate server that I could then use to copy data over to the website's database?
Note: MySQL has documentation on pulling data FROM MySQL using ODBC, but no info on how to import data TO MySQL using ODBC on an external server.
It's actually very easy. Just establish an ODBC connection to the SOTAMAS90 DSN. Your connection string looks like this:
"DSN=SOTAMAS90; UID=MyUserId; PWD=MyPassword; Company=ABC"
Note that by default Sage installs a 32-bit version of the driver, which means you must target your application to 32 bits. Or you can install the 64-bit version of the driver, which can be found in your Sage directory, in the WKSetup folder.
After that just write code to SELECT * from each of the tables you need, and write them into your MySql database.
I don't really know MySql well, but in SQL Server you can set up a Linked Server, point it to SOTAMAS90, and then query the SQL Server database instead of the ODBC driver. But it's slow. Much better performance if you can run a nightly ETL to populate your MySQL database and query that. Be sure to set foreign keys and create indexes for them after to define the tables.
Hope that helps.
Aaron
I have a website running with php and mysql on Centos(Amazon instance). The newly brought ERP(to be integrated with existing system) uses Oracle as db(located on a separate Windows server). The orders from the website are inserted into the Master Mysql database and which are replicated into the Slave Mysql database. These orders need to be pushed to the Oracle Db. I have arrived on 4 methods to do this.
Use mysql UDF for http communication that would send the rows on a Insert Trigger on the slave to the Oracle webservices on Oracle server
Use cron jobs(with a low interval may be 5 mins,polling) with Php script that would get the new orders from mysql and send to the Oracle db via Oracle services/Php services on Oracle hosted server.
Use sys_exec() udf to invoke php script to insert into Oracle db
Use memcached with MySql and let Php poll the memcached to retrieve data and send it to Oracle server, but unsure whether we could migrate existing Mysql version to new version Mysql 5.6
I already have the UDF's in place and tested them, they are good to go. but still in dilemma regarding data integrity and reliability in case of using UDF's with triggers.
Is there a better method for doing this. Or else which method shall I follow to do the same.
I am aware of the security threats of UDF's, you can't restrict it to any user
One more thing I am not allowed to introduce new changes to the existing website php code for the operation.
SymmetricDS replicates parts of or entire database schemas across different vendor products. It works by installing triggers, but it replicates on a transaction basis ensuring that transactions gets replayed onn target database (s) in the right order.
I need to automate a data flow from MS-Access to MySQL for an insurance company.
Users will continue to work in MS-Access, but the changes done through the Access forms should take effect in MySQL as well.
This is the decision of our web analyst, because the web system will not be able to replace all MS-Access functionalities that are currently used, and the data management will currently continue to be done in MS-Access (this was the decision).
I see two options, and one of the options contains my question:
Automate the data upload through VBA (when changes occur via the form, an Ajax request sends the data via GET parameters to a PHP script on the server that performs the necessary manipulations on the data before storing them in MySQL. Immediate upload into MySQL could have been possible as well, but it was decided not to do this);
Send a simple request to a PHP script, and perform all actions in PHP: Get records from MS-Access in PHP, manipulate the data in PHP, and store them to MySQL in PHP. (My preference. I will need to create a script that runs automatic migrations every night as well, so I will need to do this anyway).
The MS-Access database is stored on our local network, ie. a different server than where the PHP script runs (which is an external web server).
I would prefer to manage everything in PHP, but (my question):
Is it possible to connect to the host of our local network and the
host of the external server simultaneously, querying data from
MS-Access, manipulating them with PHP and inserting / updating them in MySQL at the
same time, in a single script?
Is it possible to connect to the host of our local network and the
host of the external server simultaneously, querying data from
MS-Access, manipulating them with PHP and inserting / updating them in
MySQL at the same time, in a single script?
Yes, but you don't really need a PHP script, access can work with MySQL through an ODBC connection or by using ADODB connections. It would be easiest to modify the forms to work with the MYSQL back-end.
The advantage of the ODBC connection is you can insert from the access DB to the MySQL DB in a single query.
Using ADODB connections you can take an access query, and do a batch insert (you'll have to do it through a string), but that can also be relatively quick since you only connect to the MySQL db to send the INSERT command, the rest is string manipulation.
If you are going to go with an asynchronous bulk update through php
<?php
$dbName = $_SERVER["DOCUMENT_ROOT"] . "products\products.mdb";
if (!file_exists($dbName)) {
die("Could not find database file.");
}
$db = new PDO("odbc:DRIVER={Microsoft Access Driver (*.mdb)}; DBQ=$dbName; Uid=; Pwd=;");
That code will allow you to connect to the access back-end (credit to http://www.sitepoint.com/using-an-access-database-with-php/)
note that the queries will be parsed by access, so you should format them the access way.
I have access to a remote Oracle database when using Toad or SQL Developer.
The connection is specified by a TNS record and user+password of course.
Now I wish to have a local webpage that shows (regularly refreshed) data from the database. At first I was thinking of using php but I guess that can only be used on the server itself and I am unable to create files on the server. Of course a server page would be more suitable when there's multiple users but here there's only one.
In fact I just want to do the same as is done by running queries from the tools mentioned, but now called from a custom webpage. I feel this should be possible because the tool has to establish the connection from client to server db also; but I don't know how to set up my local client webpage(s).
Is this possible by applying php or javascript if that's more suitable?
Well you have to understand that the functionality of connecting to oracle database is packaged as part of frameworks, there are no such frameworks in javascript which can help you.
you are right with php, however it needs a webserver to run and they are free :)
the reason why php can connect to oracle database is, it has the framework to do those operations.
for now the answer is no.
or you can see if you can write an Activex which can connect to Oracle database and refresh, microsoft provides framework / api to connect to databases
The best way to do that kind of thing is AJAX: a javascript code calls a PHP page on the web server, this page connects to the DB and returns data to the javascript that updates the page.
is it necessary to use php to connect to the MySQL
i am working the desktop application and do not have a knowledge of php either
is there any in build class or functionality that can be use to connect to the MySQL
although there are many programme present over the internet to do so but unablefind one without the use of php. is there any reference or can i have the step by step example regarding the work.
MySQL config has the default settings. like username is root and password is blank my server name is local host.
No. PHP is a programming language. MySQL is a database. Install MySQL and type mysql from the command line and you will be connecting to MySQL using mysql.
MySQL docs
If you're writing a desktop application, mysql probably isn't the database you want to use. If you want to store data locally, try something like an embedded sqllite database. If you want to store the data remotely, I STRONGLY recommend to put the database behind an API. That is where something like PHP would come into play. It doesn't have to be PHP though. It can be python, java, ruby, etc.
Whatever you do though, DO NOT talk directly to a remote mysql database from your desktop app. That's just asking to have your db hacked.
MySQL has nothing to do with PHP, except that they are often bundled together. If you need to access MySQL by itself you can download MySql workbench.
http://www.mysql.com/products/workbench/
If you need a driver for your language google 'language + MySql Driver'