Sets in C# is a HashSet. HashSet in C# eliminates duplicate strings or elements in an array. In C#, it is an optimized set collectionTo declare HashSet −var h = new HashSet(arr1);Above, we have set the already declared array arr1 in the HashSet.Now set it on the array to remove ... Read More

As we know that built-in-commands (\G and \g) send the command to MySQL server for execution and both of them have the different format of the result set. For combining them and getting the result without error, we need to write two queries, one query with \G and other with ... Read More

As we know that a NULL is no value and it is not the same as zero. MySQL represents a database column as NULL if it does not contain any data. Now, if we will use NULL in any arithmetic expression then the result will be NULL also.Examplemysql> Select 65/NULL, ... Read More

The DESCRIBE statement gives information about MySQL table’s structure.ExampleConsider the constructing of the following table name ‘Employee’ with Create Table statement as follows −mysql> Create table Employee(ID INT NOT NULL PRIMARY KEY AUTO_INCREMENT, Name Varchar(20)); Query OK, 0 rows affected (0.20 sec)Now with the help of ‘DESCRIBE Employee‘ statement, we ... Read More

As we know that ROLLBACK will revert any changes made to the database after the transaction has been started. To perform the ROLLBACK in MySQL stored procedure we must have to declare EXIT handler. We can use a handler for either sqlexception or SQL warnings. It can be understood with the help of ... Read More

As we know the START transaction will start the transaction and COMMIT is used to made any changes made after starting the transaction. In the following example, we have created a stored procedure with COMMIT along with START transaction which will insert a new record and commit changes in table ... Read More

To set different styles to hyperlinks, such as font-size, background color, etc, you can try to run the following code:ExampleLive Demo                    a.first:link {color:#ff0000;}          a.first:visited {color:#0000ff;}          a.first:hover {color:#ffcc00;}         ... Read More

We can see only the list of stored procedures in a particular MySQL database by the following query −mysql> SHOW PROCEDURE STATUS WHERE db = 'query'\G *************************** 1. row ***************************                   Db: query                 Name: ... Read More

Use the CSS :nth-last-of-type(n) selector to select every element that is the second element of its parent, counting from the last child.ExampleYou can try to run the following code to implement the :nth-last-of-type(n) selector:Live Demo                    p:nth-last-of-type(2) { ... Read More

The following example shows height, width, color, name, and duration of animation with keyframes syntax −ExampleLive Demo                    h1 {             -moz-animation-duration: 3s;             -webkit-animation-duration: 3s;           ... Read More