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Ankith Reddy has Published 996 Articles
Ankith Reddy
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new is used for dynamic memory allocation. The memory allocated in this case goes on the heap. There are several costs associated with this type of memory allocation along with the programmer having to do manual memory cleaning and management. This type of allocation must be used when − You don't ... Read More
Ankith Reddy
1K+ Views
The linker searches from left to right. While doing so it encounters unresolved symbols which it keeps track of. If a library resolves the unresolved symbol, it takes the object files of that library to resolve the symbol.Dependencies of static libraries from each other work in the same way. Libraries ... Read More
Ankith Reddy
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It can be illustrated with the help of an example in which we are creating a virtual generated column in the table named ‘triangle’. As we know that virtual generated column can be generated with or without using the keyword ‘virtual’.Examplemysql> Create table triangle(SideA DOUBLE, SideB DOUBLE, SideC DOUBLE AS ... Read More
Ankith Reddy
679 Views
As we know that MySQL is not case-sensitive while comparing characters but it can be changed i.e. MySQL can perform case-sensitive string comparison if we will use BINARY keyword before the expression. Actually, BINARY keyword instructs MySQL to compare the characters in the string using their underlying ASCII values rather ... Read More
Ankith Reddy
13K+ Views
You can sort a vector of custom objects using the C++ STL function std::sort. The sort function has an overloaded form that takes as arguments first, last, comparator. The first and last are iterators to first and last elements of the container. The comparator is a predicate function that can ... Read More
Ankith Reddy
303 Views
In this case, SPACE() function would add white spaces depending upon the condition given in WHERE clause. The following example from student table will demonstrate it.Examplemysql> Select Id, Name, Space(5) from student WHERE Name='Harshit'; +------+---------+----------+ | Id | Name | Space(5) | +------+---------+----------+ | 15 | Harshit ... Read More
Ankith Reddy
148 Views
MySQL returns NULL if the argument of QUOTE() function is NULL.Examplemysql> Select QUOTE(NULL); +-------------+ | QUOTE(NULL) | +-------------+ | NULL +-------------+ 1 row in set (0.00 sec) mysql> Select Name, QUOTE(NULL) from student where id = 1; +--------+-------------+ | Name | QUOTE(NULL) | +--------+-------------+ | Gaurav | NULL | +--------+-------------+ 1 row in set (0.08 sec)
Ankith Reddy
154 Views
We can check whether a string of specified pattern is not present within another string by using NOT LIKE operator along with wildcard characters.SyntaxNOT LIKE specific_patternSpecific_pattern is the pattern of string we do not want to find out within another string.ExampleSuppose we have a table named ‘student’ having names of ... Read More
Ankith Reddy
752 Views
For using LPAD() or RPAD() functions with the column values we need to specify the column name as the first argument of these functions. Following the example from ‘Student’ table will make it clearer −Examplemysql> Select Name, LPAD(Name, 10, '*') from student; +---------+-------------------+ | Name | LPAD(Name, 10, ... Read More