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In Sql Server while writing queries sometimes we need to the data from multiple tables or you can say that output of one query becomes input to another one.
In this case we will write the nested queries that will get data from the other table a
For any web application session handling is very important part.Using sessions we can easily track user's activity throughout the application.
If we are using express in our node application, setting up a session becomes very easy.
Here we use ex
Multithreading is a meachanism where a one user can access more than one process or you can say that an operating system can perform more than one operations simultaneously.
In Android we have two types of thread that are Main thread and backg
In SQL server sometimes we need to get the median of the data in the table.
Median is the middle value that lies in the set of values that we are doing the manipulation.
To get the median, we need to be able to accom
Sometimes while developing applications, need arises that we have to get some operation performed either before or after the execution of some method.
For these purposes rails provide us with some nice hooks or we can say callbacks which can be call
This tutorial helps you how to create custom camera app, with the help of the following sample code.
The Custom camera capture the image with auto focus and flash on the click of the capture button.Some developers may require a camera user int
WordPress is much-loved for its content management system (CMS) for long centuries. WordPress achieved one of the leading markets in terms of website development. Data shows that more than 15,886,000 websites on the internet are driven by W
Important steps or points to be followed before posting any blog.
Creating a unique technological blog every time seems to be a question in everyone’s mind.
It is to be noted that just uploading codes doesn't count as good blogging. One needs to sup
Hello readers, today I guide you "To Connect Multiple Database in WordPress".
In WordPress, wpdb is the class which handles all the database related tasks. In arrears WordPress installation we have $wpdb object of that class using whi
When we apply LIKE keyword to any query then it doesn't return NULL values, and sometimes it required to return NULL values as well. We can do this by using IS NULL or IFNULL operator.
Example:
We have a table "employee" as below:
&n
