The array.flatMap() method of JavaScript is used to flatten the input array element into a new array.The syntax is as follows − array.flatMap(function callback(current_value, index, Array))Let us now implement the array.flatMap() method in JavaScript −Example Live Demo    Ranking Points    Is any point equal to 550 from ... Read More

The array.entries() method of JavaScript is used to return an Array Iterator object with key/value pairs.The syntax is as follows − array.entries()Let us now implement the array.entries() method in JavaScript −Example Live Demo    Ranking Points    Is any point equal to 550 from the key-value pairs...   ... Read More

For this, you can use ORDER BY DATE(). Let us first create a table. Here, we have a column with type DATE and another with type ENUM −mysql> create table DemoTable    -> (    -> JoiningDate date,    -> Status ENUM('Good', 'Excellent', 'Bad')    -> ); Query OK, 0 ... Read More

To display the only date from timestamp value, use the FROM_UNIXTIME() method in MySQL. Let us first create a table −mysql> create table DemoTable    -> (    -> timestampValue bigint    -> ); Query OK, 0 rows affected (0.70 sec)Insert some records in the table using insert command −mysql> ... Read More

For this, use sub query along with WHERE clause while using the MySQL UPDATE command. Let us first create a table −mysql> create table DemoTable    -> (    -> Id int,    -> Name varchar(20)    -> ); Query OK, 0 rows affected (0.82 sec)Insert some records in the ... Read More

You can use CHAR_LENGTH() along with the WHERE clause. Let us first create a table −mysql> create table DemoTable    -> (    -> FullName varchar(50)    -> ); Query OK, 0 rows affected (1.75 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('Chris Brown'); ... Read More

To split a column, you need to use SUBSTRING_INDEX() in MySQL. Let us first create a table −mysql> create table DemoTable    -> (    -> Name varchar(40)    -> ); Query OK, 0 rows affected (1.80 sec)Insert some records in the table using insert command −mysql> insert into DemoTable ... Read More

Let us first create a table −mysql> create table DemoTable    -> (    -> JoiningDate datetime    -> ); Query OK, 0 rows affected (0.59 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('2015-01-21'); Query OK, 1 row affected (0.15 sec) mysql> insert into ... Read More

Yes, it is possible using the # symbol. Let us first create a table −mysql> create table DemoTable    -> (    -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY , # Creating a sequence Number    -> FirstName varchar(20), # Creating a column to store name    -> Age ... Read More

Let us first create a table −mysql> create table DemoTable    -> (    -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,    -> Marks1 int,    -> Marks2 int,    -> Marks3 int    -> ); Query OK, 0 rows affected (0.60 sec)Insert some records in the table using ... Read More