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How do you earn bitcoins?
Bitcoin is the latest buzz in the world of digital currency at the moment and those who see its significance from a permissive outlook, they go for it because they know it that through this magical currency they can make money faster and become rich. Well, I am sorry to burst that bubble, but to be honest; Bitcoin is like any other currency out there. Like there is no easy way to make money, similarly, there is no other or magical way to gain cryptocurrency or Bitcoins too.However, cryptocurrency may open up a new method of earning, but the basic ...
Read MoreChanging data type from date to date/time in MySQL?
To change data type from date to date/time, use alter command.alter table yourTableName change yourColumnName yourColumnName datetime;Let us first create a table −mysql> create table DemoTable ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, LoginDate date ); Query OK, 0 rows affected (1.26 sec)Insert some records in the table using insert command −mysql> insert into DemoTable(LoginDate) values('2019-01-21'); Query OK, 1 row affected (0.29 sec) mysql> insert into DemoTable(LoginDate) values('2018-05-01'); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable(LoginDate) values('2017-12-31'); Query OK, 1 row affected (0.12 sec)Display all records from the table using select statement ...
Read MoreHow to perform SELECT using COUNT in MySQL?
To perform SELECT with COUNT, use aggregate function COUNT(). Let us first create a table −mysql> create table DemoTable ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, Name varchar(100), Subject varchar(100) ); Query OK, 0 rows affected (0.54 sec)Insert some records in the table using insert command −mysql> insert into DemoTable(Name, Subject) values('John', 'MySQL'); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable(Name, Subject) values('John', 'Java'); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable(Name, Subject) values('Carol', 'MongoDB'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable(Name, Subject) values('Carol', ...
Read MoreHow do I avoid the variable value in a MySQL stored procedure to change when records are updated?
We will create a stored procedure that does not change the variable value whenever the value is updated.Let us first create a table −mysql> create table DemoTable ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, Value int ); Query OK, 0 rows affected (0.63 sec)Insert some records in the table using insert command −mysql> insert into DemoTable(Value) values(100); Query OK, 1 row affected (0.13 sec) Display all records from the table using select statement : mysql> select *from DemoTable;Output+----+-------+ | Id | Value | +----+-------+ | 1 | 100 | +----+-------+ 1 row ...
Read MoreHow to find string count of a particular id in a column using a MySQL query?
For this, use the CHAR_LENGTH() function in MySQL. Let us first create a table −mysql> create table DemoTable ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, Subject longtext ); Query OK, 0 rows affected (1.17 sec)Now you can insert some records in the table using insert command −mysql> insert into DemoTable(Subject) values('MySQL, MongoDB'); Query OK, 1 row affected (0.20 sec) mysql> insert into DemoTable(Subject) values('MySQL, MongoDB'); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable(Subject) values('MongoDB'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable(Subject) values('MySQL'); Query OK, 1 row affected (0.15 sec) Display all records from the table using select statement : mysql> select *from DemoTable;Output+----+---------------+ | Id | Subject | +----+---------------+ | 1 | MySQL, MongoDB | | 2 | MySQL, MongoDB | | ...
Read MoreHow to get the date between TODAY and TODAY-7"?
To get the date between dates, you need to use. Here, we are getting the dates between today and today-7 days −select *from yourTableName where DATE(yourColumnName) > (NOW() - INTERVAL 7 DAY);Note : Let’s say the current date is '2019-06-02’ Let us first create a table.mysql> create table DemoTable ( LoginDate date ); Query OK, 0 rows affected (0.57 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('2018-03-21'); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable values('2019-05-22'); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable values('2019-05-27'); ...
Read MoreHow to insert mm/dd/yyyy format dates in MySQL?
For this, use STR_TO_DATE(). Following is the syntax −insert into yourTableName values(STR_TO_DATE(yourDateValue, yourFormatSpecifier));Let us first create a table −mysql> create table DemoTable ( ShippingDate date ); Query OK, 0 rows affected (0.81 sec)Insert some records in the table using insert command : Here, we are inserting formatted dates using date formats like m, d, y, etc −mysql> insert into DemoTable values(STR_TO_DATE('06-01-2019', '%m-%d-%Y')); Query OK, 1 row affected (0.22 sec) mysql> insert into DemoTable values(STR_TO_DATE('01-31-2019', '%m-%d-%Y')); Query OK, 1 row affected (0.22 sec) mysql> insert into DemoTable values(STR_TO_DATE('02-01-2018', '%m-%d-%Y')); Query OK, 1 row affected (0.27 sec)Display all records ...
Read MoreHow to sort by value with MySQL ORDER BY?
For this, use the ORDER BY clause. Let us first create a table −mysql> create table DemoTable ( StudentId int ); Query OK, 0 rows affected (0.59 sec)Now you can insert some records in the table using insert command −mysql> insert into DemoTable values(100); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values(60); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable values(70); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable values(45); Query OK, 1 row affected (0.24 sec) mysql> insert into DemoTable values(55); Query OK, 1 row affected ...
Read MoreIs name a reserved word in MySQL?
No, name is not a reserved word in MySQL, you can use without backtick symbol. If you are working on a reserved word then use backtick symbol. Let us first create a table −mysql> create table name ( name varchar(10) ); Query OK, 0 rows affected (0.78 sec)Now you can insert some records in the table using insert command −mysql> insert into name values('John'); Query OK, 1 row affected (0.13 sec) mysql> insert into name values('Carol'); Query OK, 1 row affected (0.14 sec)Display all records from the table using select statement −mysql> select *from name;Output+-------+ | name ...
Read MoreHow do I split a numerical query result in MySQL?
To split a numerical query result, you can use the CONCAT() function in MySQL. Let us first create a table −mysql> create table DemoTable ( StudentId int ); Query OK, 0 rows affected (0.68 sec)Now you can insert some records in the table using insert command −mysql> insert into DemoTable values(2222); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable values(5555); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable values(4567); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable values(8905); Query OK, 1 row affected (0.15 sec)Display all records from ...
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