You can’t use the index as a column name because it is a reserved word. For this, you need to use backticks around the column name.If you will use a reserved word as the column name, you can see the following error−mysql> create table DemoTable    -> (    -> ... Read More

For same results, do not use ! operator. The NOT keyword is already provided by MySQL. Let us first create a table −mysql> create table DemoTable1560    -> (    -> Value1 int    -> ); Query OK, 0 rows affected (0.50 sec)Insert some records in the table using insert ... Read More

To order results of a query randomly, use ORDER BY RAND(). The syntax is as follows −select * from DemoTable1559 where yourColumnName IN(yourValue1, yourValue2, ....N) order by rand() limit yourLimitValue;Let us first create a table −mysql> create table DemoTable1559    -> (    -> EmployeeId int,    -> EmployeeName varchar(20), ... Read More

Use FORMAT() in MySQL to display USD currency records 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> ... Read More

To shuffle elements, you need to use ORDER BY RAND(). Let us first create a table −mysql> create table DemoTable1557    -> (    -> SubjectId int NOT NULL AUTO_INCREMENT PRIMARY KEY,    -> SubjectName varchar(20)    -> ); Query OK, 0 rows affected (0.91 sec)Insert some records in the ... Read More

Let us first create a table −mysql> create table DemoTable1    -> (    -> Id int,    -> FirstName varchar(20)    -> ); Query OK, 0 rows affected (0.52 sec)Here is the query to create second table −mysql> create table DemoTable2    -> (    -> EmployeeId int,   ... Read More

Use FULLTEXT search to quickly search for a string. Let us first create a table −mysql> create table DemoTable1554    -> (    -> Title text    -> ); Query OK, 0 rows affected (0.63 sec)Here is the query to create full text search −mysql> create fulltext index faster_title on ... Read More

For this, you can use UNIQUE KEY. Let us first create a table −mysql> create table DemoTable1553    -> (    -> EmployeeId int NOT NULL AUTO_INCREMENT PRIMARY KEY,    -> EmployeeName varchar(20),    -> EmployeeSalary int    -> ); Query OK, 0 rows affected (0.47 sec)Here is the query ... Read More

Use single quotes on string input value. If there is an identifier like table name or column name, then do not use single quotes (use backticks).Let us first create a table −mysql> create table DemoTable1552    -> (    -> `key` int,    -> Name varchar(20)    -> ); Query ... Read More

For this, you can use ORDER BY clause along with LIMIT. Let us first create a table −mysql> create table DemoTable1551    -> (    -> EmployeeId int NOT NULL AUTO_INCREMENT PRIMARY KEY,    -> EmployeeName varchar(20)    -> ); Query OK, 0 rows affected (0.52 sec)Insert some records in ... Read More