Let us first create a table −mysql> create table DemoTable -> ( -> Name varchar(100) -> ); Query OK, 0 rows affected (2.23 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('John'); Query OK, 1 row affected (0.20 sec) mysql> insert into DemoTable values('Sam\''s'); Query OK, 1 row affected (0.28 sec) mysql> insert into DemoTable values('David\''s'); Query OK, 1 row affected (0.36 sec)Display all records from the table using select statement −mysql> select *from DemoTable;OutputThis will produce the following output −+----------+ | Name | +----------+ | John ... Read More

Use SUBSTRING_INDEX() for this. Let us first create a table −mysql> create table DemoTable -> ( -> UserMailId varchar(100) -> ); Query OK, 0 rows affected (0.68 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('John@gmail.com'); Query OK, 1 row affected (0.20 sec) mysql> insert into DemoTable values('Carol94844@yahoo.com'); Query OK, 1 row affected (0.25 sec)Display all records from the table using select statement −mysql> select *from DemoTable;OutputThis will produce the following output −+----------------------+ | UserMailId | +----------------------+ | John@gmail.com ... Read More

For this, use where clause. Let us first create a table −mysql> create table DemoTable -> ( -> Number1 int, -> Number2 int -> ); Query OK, 0 rows affected (3.73 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(40, 50); Query OK, 1 row affected (0.60 sec) mysql> insert into DemoTable values(100, 59); Query OK, 1 row affected (0.56 sec) mysql> insert into DemoTable values(400, 500); Query OK, 1 row affected (0.40 sec)Display all records from the table using select statement −mysql> select *from DemoTable;OutputThis will produce the following output −+---------+---------+ | ... Read More

Use truncate() for this, for example, 190.245 to 190. Following is the syntax −select truncate(yourColumnName, 0) from yourTableName;Let us first create a table −mysql> create table DemoTable    -> (    -> Value DECIMAL(10, 4)    -> ); Query OK, 0 rows affected (0.67 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(45.567); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable values(100.0000); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable values(15.89000); Query OK, 1 row affected (0.25 sec)Display all records from the table using select statement −mysql> ... Read More

Use COUNT() function along with GROUP BY clause for this. Let us first create a table −mysql> create table DemoTable -> ( -> Name varchar(100) -> ); Query OK, 0 rows affected (0.69 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('John'); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable values('Sam'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values('John'); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable values('Mike'); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable values('John'); Query ... Read More

For this, use CASE statement. This will work even without using temporary tables. Let us first create a table −mysql> create table DemoTable    -> (    -> UserName varchar(100),    -> UserStatus varchar(100)    -> ); Query OK, 0 rows affected (0.74 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('John', 'Active'); Query OK, 1 row affected (0.29 sec) mysql> insert into DemoTable values('Chris', 'Inactive'); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable values('Bob', 'Inactive'); Query OK, 1 row affected (0.32 sec) mysql> insert into DemoTable values('Robert', 'Active'); ... Read More

Let us first create a table −mysql> create table DemoTable -> ( -> AdmissionDate date -> ); Query OK, 0 rows affected (1.38 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('2019-05-12'); Query OK, 1 row affected (0.52 sec) mysql> insert into DemoTable values('2019-05-18'); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable values('2019-04-19'); Query OK, 1 row affected (0.42 sec)Display all records from the table using select statement −mysql> select *from DemoTable;OutputThis will produce the following output −+---------------+ | AdmissionDate | +---------------+ | 2019-05-12 | | 2019-05-18 ... Read More

Use zerofill for this in MySQL. Zerofill pads the displayed value of the field with zeros up to the display width specified in the column definition. For example, if column is set int(8), therefore the width is 8. If the number is let’s say 29654, then zero will be padded on the left for total width i.e.8 −00029654Let us first create a table −mysql> create table DemoTable -> ( -> Number int(8) zerofill -> ); Query OK, 0 rows affected (0.50 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(10); Query OK, 1 row affected ... Read More

To fetch a single date from a column, use “LIMIT 1. To order it, use ORDER BY clause. Let us first create a table −mysql> create table DemoTable -> ( -> DueDate varchar(100) -> ); Query OK, 0 rows affected (1.16 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('10-06-2019'); Query OK, 1 row affected (0.42 sec) mysql> insert into DemoTable values('01-12-2016'); Query OK, 1 row affected (0.52 sec) mysql> insert into DemoTable values('31-01-2018'); Query OK, 1 row affected (0.58 sec)Display all records from the table using select statement −mysql> select *from DemoTable;OutputThis ... Read More

Let us first create a table −mysql> create table DemoTable    -> (    -> Words text    -> ); Query OK, 0 rows affected (0.54 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('Ever'); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable values('Forever'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable values('Good'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values('Never'); Query OK, 1 row affected (0.12 sec)Display all records from the table using select statement −mysql> select *from DemoTable;Output+---------+ | Words ... Read More