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For this, you can use IN() along with ORDER BY FIELD(). Let us first create a table −mysql> create table DemoTable ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, FirstName varchar(100) ); Query OK, 0 rows affected (0.64 sec)Insert some records in the table using insert command −mysql> insert into DemoTable(FirstName) values('Chris'); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable(FirstName) values('Robert'); Query OK, 1 row affected (0.08 sec) mysql> insert into DemoTable(FirstName) values('Mike'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable(FirstName) values('Sam'); Query OK, 1 row affected (0.12 sec) mysql> insert into ... Read More
In this article, we will learn about the solution to the problem statement given below −Problem statementGiven a positive integer n. We need to find the largest prime factor of a number.ApproachFactorise the given number input by dividing it with the divisor of a number.Now keep updating the maximum prime factor.Example Live Demoimport math def maxPrimeFactor(n): # number must be even while n % 2 == 0: max_Prime = 2 n /= 1 # number must be odd for i in range(3, int(math.sqrt(n)) + 1, 2): while n ... Read More
Use information_schema.tables to display all the tables. With that, se the database name as well, so that you can display tables only from a specific database.Let us now display all the tables in the database “web” −mysql> select group_concat(table_name) from information_schema.tables where table_schema='web';This will produce the following output −+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | group_concat(table_name) | +------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | demo_table725, demotabe619, demotabe620, demotable211, demotable212, demotable213, demotable214, demotable215, demotable216, demotable217, demotable218, demotable219, demotable220, demotable221, demotable222, demotable223, demotable224, demotable225, demotable226, demotable227, demotable228, demotable229, demotable230, demotable231, demotable232, demotable233, demotable234, demotable235, demotable236, demotable237, demotable238, demotable239, demotable240, demotable241, demotable244, demotable245, demotable246, demotable247, demotable248, demotable249, demotable250, demotable251, demotable252, demotable 253, demotable254, ... Read More
Let us first create a table −mysql> create table DemoTable ( Title text ); Query OK, 0 rows affected (0.86 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('C is a good programming language to start'); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable values('Java is good with data structure and algorithm'); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable values('Coding is very important'); Query OK, 1 row affected (0.20 sec)Display all records from the table using select statement −mysql> select *from DemoTable;This will produce the following output ... Read More
Let us first create a table −mysql> create table DemoTable ( Id int, FirstName varchar(100) ); Query OK, 0 rows affected (0.69 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(100, 'Chris'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values(100, 'Robert'); Query OK, 1 row affected (0.48 sec) mysql> insert into DemoTable values(100, 'Mike'); Query OK, 1 row affected (0.23 sec) mysql> insert into DemoTable values(100, 'Sam'); Query OK, 1 row affected (0.48 sec) mysql> insert into DemoTable values(101, 'David'); Query OK, 1 row affected (0.19 sec) mysql> insert ... Read More
Yes, we can add underscore as a table name using backticks around the table name. Following is the syntax −INSERT INTO `yourTableName` values(yourValue1, .......N);Let us first create a table −mysql> create table `DemoTable_1` ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, Location varchar(100) ); Query OK, 0 rows affected (1.17 sec)Insert some records in the table using insert command −mysql> insert into `DemoTable_1`(Location) values('C:/myFolder/JavaFiles'); Query OK, 1 row affected (0.20 sec) mysql> insert into `DemoTable_1`(Location) values('E:/AllJarOfJava'); Query OK, 1 row affected (0.17 sec) mysql> insert into `DemoTable_1`(Location) values('C:/ProgramFiles'); Query OK, 1 row affected (0.17 sec)Display all records from ... Read More
Let us first create a table −mysql> create table DemoTable ( FirstName varchar(100) ); Query OK, 0 rows affected (0.65 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('Chris'); Query OK, 1 row affected (0.09 sec) mysql> insert into DemoTable values('Robert'); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable values('Mike'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values('Sam'); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable values('David'); Query OK, 1 row affected (0.12 sec)Display all records from the table using select statement −mysql> select ... Read More
To return only the first 15 characters from string values, use the MySQL SUBSTR() function.Let us first create a table −mysql> create table DemoTable ( Title varchar(100) ); Query OK, 0 rows affected (0.69 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('Introduction to MySQL'); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable values('Introduction to Java'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable values('C in Depth with data structure and algorithm'); Query OK, 1 row affected (0.15 sec)Display all records from the table using select statement −mysql> ... Read More
To add percentage sign at the end, use CONCAT() function. Let us first create a table −mysql> create table DemoTable ( StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY, StudentName varchar(100), StudentScore int ); Query OK, 0 rows affected (0.68 sec)Insert some records in the table using insert command −mysql> insert into DemoTable(StudentName, StudentScore) values('John', 65); Query OK, 1 row affected (0.09 sec) mysql> insert into DemoTable(StudentName, StudentScore) values('Chris', 98); Query OK, 1 row affected (0.30 sec) mysql> insert into DemoTable(StudentName, StudentScore) values('Robert', 91); Query OK, 1 row affected (0.09 sec)Display all records from the table using select ... Read More
To add leading zeros, you can use LPAD(). Let us first create a table −mysql> create table DemoTable ( Code varchar(100) ); Query OK, 0 rows affected (0.87 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('JS'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable values('CB'); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable values('DM'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable values('CT'); Query OK, 1 row affected (0.07 sec)Display all records from the table using select statement −mysql> select *from DemoTable;This will produce ... Read More