Chandu yadav has Published 1165 Articles

What is the benefit of zerofill in MySQL?

Chandu yadav

Chandu yadav

Updated on 30-Jul-2019 22:30:23

2K+ Views

ZEROFILL pads the displayed value of the field with zeros up to the display width set in the column definition. Let us understand the role of zero fill in MySQL using an example. Creating a table with two columns, one has zerofill and the second one does not. The query ... Read More

How to debug Lock wait timeout exceeded on MySQL?

Chandu yadav

Chandu yadav

Updated on 30-Jul-2019 22:30:23

287 Views

The debug Lock wait timeout situation occurs because of some threads. If one thread is holding on to some records for a very long time, it means the thread has exceeded time. To see all the details, implement the following query − mysql> SHOW ENGINE INNODB STATUS; The ... Read More

How do I kill all the processes in MySQL “show processlist”?

Chandu yadav

Chandu yadav

Updated on 30-Jul-2019 22:30:23

3K+ Views

We can kill the processes with the help of the ‘kill’ command. However, you need to kill those processes one by one, since MySQL does not have any massive kill command. To check how many processes exist, use ‘show processlist’ mysql> show processlist; The following is the output. ... Read More

Python program to extract ‘k’ bits from a given position?

Chandu yadav

Chandu yadav

Updated on 30-Jul-2019 22:30:23

2K+ Views

This function is use to extract k bits from pos position and returns the extracted value. Here we use python slicing technique. Example Input:: number=170 K=5 Pos=2 Output=21 Algorithm Extractionbit(no, k, pos) /*user input number ... Read More

How to repair MySQL tables from the command line?

Chandu yadav

Chandu yadav

Updated on 30-Jul-2019 22:30:23

270 Views

The repair of MySQL tables is only applicable to MyISAM engine type, not for InnoDB. Therefore, we need to change the Engine type to MyISAM. The following is an example. Creating a table mysql> create table RepairTableDemo -> ( -> id int, ... Read More

C++ Program to Implement Priority Queue

Chandu yadav

Chandu yadav

Updated on 30-Jul-2019 22:30:23

5K+ Views

The queue which is implemented as FIFO where insertions are done at one end (rear) and deletions are done from another end (front). The first element that entered is deleted first.Queue operations areEnQueue (int data): Insertion at rear endint DeQueue(): Deletion from front endBut a priority queue doesn’t follow First-In-First-Out, ... Read More

How to check internet connection in android?

Chandu yadav

Chandu yadav

Updated on 30-Jul-2019 22:30:23

3K+ Views

This example demonstrate about how to check the state of internet connection through broadcast Receiver.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − To find the internet status we have to ... Read More

Python program to split the even and odd elements into two different lists.

Chandu yadav

Chandu yadav

Updated on 30-Jul-2019 22:30:23

21K+ Views

In this program we create a user input list and the elements are mixture of odd and even elements. Our task is to split these list into two list. One contains odd number of element and another is even number of elements. Example Input: [1, 2, 3, 4, 5, ... Read More

Python Text Sequence Types

Chandu yadav

Chandu yadav

Updated on 30-Jul-2019 22:30:23

537 Views

In python the str object, handles the text or string type data. Strings are immutable. The strings are sequence of Unicode characters. We can use single quote, double quotes or triple quotes to define the string literals. ‘This is a string with single quote’ “Another Text with double quotes” ... Read More

Why python for loops don't default to one iteration for single objects?

Chandu yadav

Chandu yadav

Updated on 30-Jul-2019 22:30:22

96 Views

Python cannot iterate over an object that is not 'iterable'. The 'for' loop construct in python calls inbuilt functions within the iterable data-type which allow it to extract elements from the iterable.Since non-iterable data-types don't have these methods, there is no way to extract elements from them. And hence for ... Read More

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