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Reason why this error might occur:
i) Incomplete MySQL implementation
ii) MySQL setting mis-configuration
Solution:
root@myserver:/# vi /etc/mysql/my.cnf
Comment out the below line in my.cnf file to make MySQL listen on ALL interfaces
#bind-address = 127.0.0.1
root@myserver:/# netstat -tap | grep mysql
tcp 0 0 *:mysql *:* LISTEN 17785/mysqld
Note that above line which indicates MySQL listening on all interfaces.
GUID stands for “Global Unique Identifier” and is a term usually referring to Microsoft’s implementation of unique identity number (in a distributed environment) that it generates to identify different entities such documents, COM’s, DLL’s, interfaces, records, and other objects. It is also known as UUID – Universal Unique Identifier interchangeably.
GUID implemenation is a 128 bit (16 byte) value consisting of sets of hexadecimal digits separated by hyphens. As the total number of unique keys is large the probability of two numbers being the same is very small.
The AutoNumber datatype in MS-Access and the Identity datatype in SQL Server is a GUID implementation.
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In order for you to export data from MySQL to Access database, you need to first download MySQL ODBC connector from
http://dev.mysql.com/downloads/connector/odbc/3.51.html
(Choose MSI installer from the downloads section and install it in your machine)
After installing MySQL ODBC connector, you need to configure ODBC connector in order connect MySQL database.
1. Choose Start > settings > Control Panel > Administrative Tools. Then double click on Data Sources (ODBC)
2. Click System DSN and then press “Add” button. There will be a dialog asking you to choose new data source. Choose MySQL ODBC 3.51 driver and click Finish
3. Next you need to fill in the details that will enable ODBC drive to open the database of your choice. Give a name for the data source (e.g. MyDSN), Server name (e.g. localhost), User (e.g. sqlusername), Password (password for user sqlusername) and the name of the database to which you want to connect to in MySQL
4. Click the Test button to ensure everything works fine and as expected.
5. The DSN “MyDSN” gets created for you when you click the “Ok” button.
6. Now, go to Access and create a database (e.g. MyAccessDB)
7. In Access, click “File > Get External Data > Import > and then choose “ODBC Databases” from “Files of Type” option. This will open a new dialog window asking you to “Select Data Source”
8. From the new dialog window, choose “Machine Data Source“. This will display the DSN “MyDSN” which you have created earlier. Choose that DSN and click “Ok” to import the database from MySQL to Access database.
Command to clear the screen content from command prompt in MySQL
mysql> \! clear
Ever wondered why there is a “test” database in the list of tables when you install MySQL.
This is to allow users to practice MySQL commands or execute complex queries on the database.
“test” database is accessible to everyone who has access to MySQL in your localhost and hence is not advisable if you were to use it for your development. (more…)
Quick and easy steps
Grab a copy of cakePHP from cakephp.org website
You can either create the new cakephp website in the root (http://localhost/) or by adding it as a subfolder (http://localhost/mycakesite/)
If you create it as a subfolder, then configure the appropriate path settings for linking images in the web pages.
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MySQL Table Types that are well known
- MyISAM
- InnoDB
- BSD
When making a choice amongst the different types of tables in MySQL, we need to consider the following points
- Size of database based on the activity
- Nature of database access / activity (whether it involves heavy reads / writes)
- Database backup (schema, data)
- Session handling
- If it involves a sync to another database
- What needs to be done if the application is to be scaled
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Steps to install MySQL on Ubuntu Server
After setting up the server, issue the below command to install mysql and its associated libraries
$ apt-get install mysql-server mysql-client libmysqlclient12-dev
Edit MySQL configuration file, to set the IP address that will be dedicated for MySQL.
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How to transfer mysql backup files across network or emails?
Say for example, you generate a mysql dump called “mysql.dump” from your database the size of which is beyond the file transferable limit of your email account. The following steps will help you in making the file transfer possible (more…)
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