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Let us first create a table −mysql> create table DemoTable635( EmployeId int NOT NULL AUTO_INCREMENT PRIMARY KEY, EmployeeName varchar(100) ); Query OK, 0 rows affected (1.24 sec)Insert some records in the table using insert command −mysql> insert into DemoTable635(EmployeeName) values('John'); Query OK, 1 row affected (0.20 sec) mysql> insert into DemoTable635(EmployeeName) values('Sam'); Query OK, 1 row affected (0.27 sec) mysql> insert into DemoTable635(EmployeeName) values(''); Query OK, 1 row affected (0.38 sec) mysql> insert into DemoTable635(EmployeeName) values(null); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable635(EmployeeName) values('David'); Query OK, 1 row affected (0.22 sec)Display all records from the ... Read More
For this, use FIND_IN_SET() method. Let us first create a table −mysql> create table DemoTable634 (FirstName varchar(100), Marks int, Age int); Query OK, 0 rows affected (0.69 sec)Insert some records in the table using insert command −mysql> insert into DemoTable634 values('John', 60, 23); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable634 values('Chris', 80, 21); Query OK, 1 row affected (0.23 sec) mysql> insert into DemoTable634 values('Robert', 70, 24); Query OK, 1 row affected (0.22 sec)Display all records from the table using select statement −mysql> select *from DemoTable634;This will produce the following output −+-----------+-------+------+ | FirstName | Marks ... Read More
Let us first create a table −mysql> create table DemoTable633 (StudentId char(2) not null primary key, StudentName varchar(100)); Query OK, 0 rows affected (1.06 sec)Insert some records in the table using insert command −mysql> insert into DemoTable633 values('10', 'Chris'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable633 values('20', 'Sam'); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable633 values('30', 'David'); Query OK, 1 row affected (0.17 sec)Display all records from the table using select statement −mysql> select *from DemoTable633;This will produce the following output −+-----------+-------------+ | StudentId | StudentName | +-----------+-------------+ | 10 ... Read More
Let us first create a table −mysql> create table DemoTable631 ( StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY, StudentName varchar(100) ); Query OK, 0 rows affected (0.83 sec)Insert some records in the table using insert command −mysql> insert into DemoTable631(StudentName) values('John Smith'); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable631(StudentName) values('Adam Smith'); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable631(StudentName) values('David Miller'); Query OK, 1 row affected (0.16 sec)Display all records from the table using select statement −mysql> select *from DemoTable631;This will produce the following output −+-----------+--------------+ | StudentId | StudentName | ... Read More
Let us first create a table −mysql> create table DemoTable630 (ArrivalDate varchar(100)); Query OK, 0 rows affected (0.55 sec)Insert some records in the table using insert command −mysql> insert into DemoTable630 values('2015-21-01'); Query OK, 1 row affected (0.09 sec) mysql> insert into DemoTable630 values('2018-25-12'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable630 values('2019-15-07'); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable630 values('2016-31-03'); Query OK, 1 row affected (0.17 sec)Display all records from the table using select statement −mysql> select *from DemoTable630;This will produce the following output −+-------------+ | ArrivalDate | +-------------+ | 2015-21-01 | ... Read More
Let us first create a table −mysql> create table DemoTable629 (StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY, StudentSubject text); Query OK, 0 rows affected (0.77 sec)Insert some records in the table using insert command −mysql> insert into DemoTable629(StudentSubject) values('MySQL%'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable629(StudentSubject) values('Spring%Hibernate'); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable629(StudentSubject) values('%Java'); Query OK, 1 row affected (0.21 sec)Display all records from the table using select statement −mysql> select *from DemoTable629;This will produce the following output −+-----------+------------------+ | StudentId | StudentSubject | +-----------+------------------+ | ... Read More
A Function assigns to each element of a set, exactly one element of a related set. Functions find their application in various fields like representation of the computational complexity of algorithms, counting objects, study of sequences and strings, to name a few. The third and final chapter of this part highlights the important aspects of functions.Function - DefinitionA function or mapping (Defined as f: X → Y) is a relationship from elements of one set X to elements of another set Y (X and Y are non-empty sets). X is called Domain and Y is called Codomain of function ‘f’.Function ... Read More
Let us first create a table −mysql> create table DemoTable628 (Value DECIMAL(10, 2)); Query OK, 0 rows affected (0.52 sec)Insert some records in the table using insert command −mysql> insert into DemoTable628 values(10.97); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable628 values(20.04); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable628 values(12.00); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable628 values(89.56); Query OK, 1 row affected (0.20 sec)Display all records from the table using select statement −mysql> select *from DemoTable628;This will produce the following output −+-------+ | Value | +-------+ | 10.97 ... Read More
Problem StatementFind the number of spanning trees in the following graph.SolutionThe number of spanning trees obtained from the above graph is 3. They are as follows −These three are the spanning trees for the given graphs. Here the graphs I and II are isomorphic to each other. Clearly, the number of non-isomorphic spanning trees is two.
For this, use UPPER() on MySQL column. Let us first create a table −mysql> create table DemoTable627 (Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, FirstName varchar(100)); Query OK, 0 rows affected (0.62 sec)Insert some records in the table using insert command −mysql> insert into DemoTable627(FirstName) values(UPPER('John')); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable627(FirstName) values(UPPER('Sam')); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable627(FirstName) values(UPPER('Mike')); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable627(FirstName) values(UPPER('Carol')); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable627(FirstName) values(UPPER('dAVID')); Query OK, 1 row affected (0.70 ... Read More