For this, use UNION ALL along with SUM(). Let us create 5 tables −mysql> create table DemoTable1977    (    UP int    ); Query OK, 0 rows affected (0.00 sec) mysql> insert into DemoTable1977 values(10); Query OK, 1 row affected (0.00 sec) mysql> insert into DemoTable1977 values(20); Query OK, ... Read More

The replaceAll() method in jQuery is used to replace selected elements with new HTML elements.SyntaxThe syntax is as follows −$(content).replaceAll(selector)Above, the content parameter is the content to insert, whereas the selector specifies which elements to be replaced.ExampleLet us now see an example to implement the jQuery replaceAll() method − Live Demo ... Read More

For this, use IF() with IS NULL property. Let us first create a table −mysql> create table DemoTable1976    (    FirstName varchar(20),    LastName varchar(20)    ); Query OK, 0 rows affected (0.00 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1976 values('John', 'Doe'); Query ... Read More

The show() method in jQuery is used to display the hidden element.SyntaxThe syntax is as follows −$(selector).show(speed, easing, callback)Above, the parameter speed is the speed of the show effect, whereas easing is the speed of the element in different points of the animation. The callback function is a function that ... Read More

Let us first create a table −mysql> create table DemoTable1975    (    StudentName varchar(20),    StudentMarks int    ); Query OK, 0 rows affected (0.00 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1975 values('John', 45); Query OK, 1 row affected (0.00 sec) mysql> insert ... Read More

For this, use prepared statement. Let us first create a table −mysql> create table DemoTable1973    (    StudentId int,    StudentName varchar(20)    ); Query OK, 0 rows affected (0.00 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1973 values(101, 'Chris'); Query OK, 1 row ... Read More

Let us first create a table −mysql> create table DemoTable1972    (    Section char(1),    StudentName varchar(20)    ); Query OK, 0 rows affected (0.00 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1972 values('D', 'Chris'); Query OK, 1 row affected (0.00 sec) mysql> insert ... Read More

Let us first create a table −mysql> create table DemoTable1971    (    StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY,    StudentName varchar(20),    StudentPassword int    ); Query OK, 0 rows affected (0.00 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1971(StudentName, StudentPassword) values('John', '123456'); ... Read More

The element ~ siblings selector in jQuery is used to select all elements that are siblings of the specified "element".SyntaxThe syntax is as follows −("ele ~ siblings")Above, the parameter ele is any valid selector, whereas siblings are the siblings of the ele parameter.ExampleLet us now see an example to implement ... Read More

Let us first create a table −mysql> create table DemoTable1969    (    BranchCode varchar(20)    ); Query OK, 0 rows affected (0.00 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1969 values('CSE 101'); Query OK, 1 row affected (0.00 sec) mysql> insert into DemoTable1969 values('CSE ... Read More