The rank() function can be used to give a rank for every row within the partition of a result set. First, let us create a table − mysql> create table RankDemo mysql> ( mysql> id int mysql> ); Query OK, ... Read More

To do a batch insert, we need to use all column names with parenthesis, separated by ‘, ’. Let us see an example. First, we will create a table. The following is the CREATE command to create a table. mysql> CREATE table MultipleRecordWithValues - > ( ... Read More

To open root access from all hosts, we need to change the database to “mysql” with the help of USE command. The syntax of USE command is as follows − USE anyDatabasename; Now, I will use predefined database ‘mysql’, which is as follows − mysql> use mysql; ... Read More

Voice over long-term evolution or Voice-over LTE (VoLTE) are the standards in all-IP networks for voice communication as well as data communication over 4G LTE networks. VoLTE offers services like creating, provisioning and managing high-speed voice, data, multimedia and messaging services on a 4G wireless network for mobile and ... Read More

Let us see an example to get the count of each distinct value in a column. Firstly, we will create a table. The CREATE command is used to create a table. mysql> create table DistinctDemo1 - > ( - > id int, ... Read More

To remove any database, we need to use DROP command in MySQL. Here is the syntax. DROP DATABASE yourDatabaseName; First, let us check how many databases are present in MySQL. Here is the query for the same. mysql> SHOW DATABASES; The following is the output. ... Read More

We can use DISTINCT and COUNT together in a single MySQL query. Firstly, let us create a table. The CREATE command is used to create a table. mysql> create table DistCountDemo - > ( - > id int, - > ... Read More

Cable modem is a hardware device that is used to connect the computer with the Internet Service Provider (ISP) through the local cable TV line. It has two interfaces – one to the cable TV network outlet and the other to a computer or television or set-top box. Configuration Cable ... Read More

Let’s say we have a table and now there is a requirement to add AUTO_INCREMENT on column name. For that, use the MODIFY command. Here, we will create a demo table first. mysql> create table AddingAutoIncrement -> ( -> Id int, ... Read More

InnoDB is a general-purpose storage engine that balances high reliability and performance. Since MySQL 5.6, InnoDB is the default MySQL storage engine. InnoDB can be used for various purposes. Here are some of them − It can be used for transaction purpose i.e. all ACID properties. InnoDB can be ... Read More