To replace only a single character, use REPLACE() in MySQL. Let us first create a table −mysql> create table DemoTable    -> (    -> Name varchar(20)    -> ); Query OK, 0 rows affected (0.69 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('John Smitk'); Query OK, 1 row affected (0.09 sec) mysql> insert into DemoTable values('David Miller'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values('Adam Smitk'); Query OK, 1 row affected (0.11 sec)Display all records from the table using select statement −mysql> select *from DemoTable;This will produce the following ... Read More

For this, you can use ORDER BY IFNULL(). Let us first create a table −mysql> create table DemoTable    -> (    -> Name varchar(20),    -> CountryName varchar(20)    -> ); Query OK, 0 rows affected (0.61 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('Chris', NULL); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable values('David', 'AUS'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values(NULL, 'UK'); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable values(NULL, 'AUS'); Query OK, 1 row affected (0.10 sec) mysql> ... Read More

For this, you can use the UPDATE command along with the WHERE clause in a PROCEDURE. Let us first create a table −mysql> create table DemoTable    -> (    -> Id int,    -> FirstName varchar(20),    -> LastName varchar(20)    -> ); Query OK, 0 rows affected (0.56 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(101, 'David', 'Brown'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable values(102, 'Chris', 'Brown'); Query OK, 1 row affected (0.08 sec) mysql> insert into DemoTable values(103, 'John', 'Doe'); Query OK, 1 row affected (0.07 ... Read More

If we will insert nothing in the INSERT statement, then for timestamp type, it would insert the current date-time. Let us first create a table −mysql> create table DemoTable    -> (    -> UserId int NOT NULL AUTO_INCREMENT PRIMARY KEY,    -> UserLoginDate timestamp default current_timestamp    -> ); Query OK, 0 rows affected (0.61 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable values(); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable values(); Query OK, 1 row affected (0.08 ... Read More

Let us first create a table −mysql> create table DemoTable    -> (    -> Value varchar(20)    -> ); Query OK, 0 rows affected (0.53 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('20'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values('10.5'); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable values('11'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable values('10'); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable values('20.5'); Query OK, 1 row affected (0.13 sec)Display all records from the table ... Read More

Use the STR_TO_DATE() method to insert date records as in the below syntax −select str_to_date(yourColumnName, '%b %Y') from yourTableName;Let us first create a table −mysql> create table DemoTable    -> (    -> JoiningYear varchar(20)    -> ); Query OK, 0 rows affected (0.69 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('Jan 2018'); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable values('May 2107'); Query OK, 1 row affected (0.32 sec) mysql> insert into DemoTable values('Aug 2019'); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable values('Oct 2020'); Query OK, ... Read More

Let us first create a table −mysql> create table DemoTable    -> (    -> Version varchar(20)    -> ); Query OK, 0 rows affected (0.77 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('1.0.0'); Query OK, 1 row affected (0.21 sec) mysql> insert into DemoTable values('2.s6.9'); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable values('1.5.0'); Query OK, 1 row affected (0.12 sec)Display all records from the table using select statement −mysql> select *from DemoTable;This will produce the following output −+---------+ | Version | +---------+ | 1.0.0   | | 2.s6.9  | ... Read More

Use FORMAT() in MySQL to display currency records and display them in the correct form. Let us first create a table −mysql> create table DemoTable    -> (    -> Amount DECIMAL(15, 4)    -> ); Query OK, 0 rows affected (0.75 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(90948484); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable values(1000000000); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable values(1535353536); Query OK, 1 row affected (0.09 sec) mysql> insert into DemoTable values(773646463); Query OK, 1 row affected (0.20 sec)Display all ... Read More

For this, use LEFT in MySQL. Let us first create a table −mysql> create table DemoTable    -> (    -> Title text    -> ); Query OK, 0 rows affected (0.59 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('Java database connectivity to MySQL database'); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable values('Python with django framework'); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable values('C with data structure and algorithm'); Query OK, 1 row affected (0.33 sec)Display all records from the table using select statement −mysql> select ... Read More

For this, use CASE statement along with FIND_IN_SET(). Let us first create a table −mysql> create table DemoTable1629     -> (     -> Month varchar(100)     -> ); Query OK, 0 rows affected (0.64 sec)Insert some records in the table using insert command.mysql> insert into DemoTable1629 values('2, 4, 6'); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable1629 values('1, 3, 5, 12'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable1629 values('7, 8, 9, 10'); Query OK, 1 row affected (0.15 sec)Display all records from the table using select statement − mysql> select ... Read More