For this, use aggregate function count(*) to count to GROUP BY to group. Let us first create a table −mysql> create table DemoTable (    UserName varchar(100),    UserPostMessage text ); Query OK, 0 rows affected (0.54 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 (    Id int,    Name varchar(100) ); Query OK, 0 rows affected (0.94 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(10, 'Chris'); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable ... Read More

For this, use aggregate function MIN() along with WHERE clause. Let us first create a table −mysql> create table DemoTable (    Number int ); Query OK, 0 rows affected (0.54 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(11); Query OK, 1 row affected ... Read More

Let us first create a table −mysql> create table DemoTable (    UserName varchar(100) ); Query OK, 0 rows affected (0.69 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('Smith_John'); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable values('Smith_Adam'); Query OK, 1 ... Read More

For this, you can use BETWEEN keyword. Let us first create a table −mysql> create table DemoTable (    ExpiryDate date ); Query OK, 0 rows affected (0.55 sec)Note − Let’s say the current date is 2019-08-18.Insert some records in the table using insert command −mysql> insert into DemoTable values('2018-01-21'); ... Read More

Let us first create a table −mysql> create table DemoTable (    StudentId int,    StudentMarks int ); Query OK, 0 rows affected (0.83 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(1000, 78); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable ... Read More

To assign value 1 while altering, use the MySQL DEFAULT. This will itself enter 1 if nothing is inserted in the same column while using the INSERT command.Let us first create a table −mysql> create table DemoTable (    isAdult int ); Query OK, 0 rows affected (1.39 sec)Following is ... Read More

To find the minimum and maximum values in a single query, use MySQL UNION. Let us first create a table −mysql> create table DemoTable (    Price int ); Query OK, 0 rows affected (0.57 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(88); Query ... Read More

For this, use the FOUND_ROWS in MySQL. Following is the syntax −SELECT SQL_CALC_FOUND_ROWS TABLE_NAME FROM `information_schema`.tables WHERE TABLE_NAME LIKE "yourValue%" LIMIT yourLimitValue;Here, I am using the database ‘web’ and I have lots of tables, let’s say which begins from DemoTable29. Let us implement the above syntax to fetch only 4 ... Read More

To get only the date from DateTime, use the date format specifiers −%d for day %m for month %Y for yearLet us first create a table −mysql> create table DemoTable (    AdmissionDate datetime ); Query OK, 0 rows affected (0.52 sec)Insert some records in the table using insert command ... Read More