To front pad zip code with 0, use LPAD() function in MySQL. The syntax is as follows −SELECT LPAD(yourColumnName, columnWidth+1, '0') as anyVariableName from yourTableName;To understand the above concept of LPAD() to add front pad zip code with 0, let us create a table. One of the columns of the ... Read More

To store query result in a variable with MySQL, use the SET command. The syntax is as follows −SET @anyVariableName = ( yourQuery);To understand the above concept, let us create a table. The following is the query to create a table −mysql> create table QueryResultDemo    −> (    −> ... Read More

The immediate superclass information of any entity such as an object, class, primitive type, interface etc. can be obtained using the method java.lang.Class.getSuperclass().A program that demonstrates this is given as follows −Example Live Demopackage Test; import java.lang.*; class Class1{ } class Class2 extends Class1{ } public class Demo { ... Read More

To get order by column and place empty records at the end, use ORDER By and “is null” from MySQL. The syntax is as follows −select *from yourTableName order by if(yourColumName = ’ ’ or yourColumName is null, 1, 0), yourColumnName;To understand the above syntax, let us create a table. ... Read More

You can change the current count of an auto_increment in MySQL using ALTER command.The syntax is as follows −ALTER TABLE yourTableName AUTO_INCREMENT = IntegerValue;To understand the above syntax, let us create a table. The query to create a table is as follows −mysql> create table changeCurrentAutoIncrementValue    −> (   ... Read More

You can increase and decrease row value by 1 in MySQL using UPDATE command. The syntax is as follows −UPDATE yourTableName set yourColumnName = yourColumnName-1 where condition;Let us create a table to decrease row value by 1. The following is the query −mysql> create table IncrementAndDecrementValue    −> (   ... Read More

You can create a function using create function command. The syntax is as follows −delimiter // DROP FUNCTION if exists yourFunctionName; CREATE FUNCTION yourFunctionName(Parameter1, ...N) returns type BEGIN # declaring variables; # MySQL statementns END // delimiter ;First, here we will create a table and add some records in the ... Read More

Use aggregate function sum() to sum the elements of a column in MySQL. The syntax is as follows −select sum(yourColumnName1) as anyVariableName1, sum(yourColumnName2) as anyVariableName2, sum(yourColumnName3) as anyVariableName3, ............N from yourTableName;To understand the above syntax, let us create a table. The following is the query to create a table −mysql> ... Read More

The difference between the two forms is in the location where the preprocessor searches for the file to be included.#include The preprocessor searches in an implementation-dependent manner, it searches directories pre-designated by the compiler. This method is usually used to include standard library header files.#include "filename"The preprocessor searches in the ... Read More

Ionic is an open source framework used for developing mobile applications. It provides tools and services for building Mobile UI with native look and feel. Lists are one of the most popular elements of any web or mobile application. They are usually used for displaying various information. They can be combined ... Read More