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In this blog we will discuss whether MongoDB's $in clause guarantee order or not.
The $in operator selects the documents where the value of a field equals any value in the specified array. To specify an $in expression, use the following
Most of the time when on any action, a new window is opened then the control remains on the first window but the element is on the second window, so we receives an error message that "element not found". In this case we have to move the control expli
Radio Button
A radio button is a two-states button that can be either checked or unchecked. They are normally used together in a RadioGroup. When several radio buttons live inside a radio group, checking one radio button unchecks all the others.
Exa
Brute Force Attack
A Brute-force attack is a technique(Procedure or Method) for obtaining or finding-out information by trying every key combination in an effort to find an unknown value and to try a large number of possible values by using an autom
Saving session in database is best practice for website security. so if we want more security then we need to save session in database.
Here are few steps to save session in database
step 1--> Create a table name as sessionsdata
step 2--> cr
SharedPreferences are used to store primitive data types in Android such as int, long, float, string. SharedPreferences have an added advantage over storing data in singleton class as Singleton class can store data and available throughout the app bu
Getting object values from Json:
If you have a data in Json format and you need to retrieve the object values from that day, it can be easily done using Java.
Lets see an example,
If you are using maven add the following dependency:
In magento if we need to get the list of products of orders of the current logged in customer.
To do so lets see how we can do it:
first of all we need to get the logged in user id from the session for the same write the below c
There are many different kind of CSS selector which we can use to apply CSS style to an element in html. ID and Class are one of them. Here, in this this blog, I am going to explain you the basic difference between these two :-
1. In the
Passing primary key values in the parent table to foreign key values in child table with parent insert and child insert being in separate stored procedures.
Parent is Lease table, the child is Rent table. I am getting null values for le
