Split (1)

train · 76.6k rows

Subsets and Splits

No community queries yet

The top public SQL queries from the community will appear here once available.

title stringlengths 3 221	text stringlengths 17 477k	parsed listlengths 0 3.17k
Fetch random rows from a table with MySQL	For this, you can use a PREPARE statement. Let us first create a table − mysql> create table DemoTable( FirstName varchar(100), CountryName varchar(100) ); Query OK, 0 rows affected (0.53 sec) Insert some records in the table using insert command − mysql> insert into DemoTable values('Adam','US'); Query OK, 1 row...	[ { "code": null, "e": 1135, "s": 1062, "text": "For this, you can use a PREPARE statement. Let us first create a table −" }, { "code": null, "e": 1261, "s": 1135, "text": "mysql> create table DemoTable(\n FirstName varchar(100),\n CountryName varchar(100)\n);\nQuery OK, 0 rows...
Working with Numpy Arrays: Indexing \| by Kurtis Pykes \| Towards Data Science	PyTrix will now be a weekly series where I present cool things that can be done in Python that are useful for Data Scientist. The last PyTrix tutorial can be found in the link below... towardsdatascience.com Link for the Github Repository below: github.com First, let’s start by explaining Numpy. Numpy is the de-facto l...	[ { "code": null, "e": 357, "s": 172, "text": "PyTrix will now be a weekly series where I present cool things that can be done in Python that are useful for Data Scientist. The last PyTrix tutorial can be found in the link below..." }, { "code": null, "e": 380, "s": 357, "text": "t...
Prim's algorithm in Javascript	Prim's algorithm is a greedy algorithm that finds a minimum spanning tree for a weighted undirected graph. It finds a subset of the edges that forms a tree that includes every vertex, where the total weight of all the edges in the tree is minimized. The algorithm operates by building this tree one vertex at a time, fro...	[ { "code": null, "e": 1312, "s": 1062, "text": "Prim's algorithm is a greedy algorithm that finds a minimum spanning tree for a weighted undirected graph. It finds a subset of the edges that forms a tree that includes every vertex, where the total weight of all the edges in the tree is minimized." ...
Program to find length of longest strictly increasing then decreasing sublist in Python	Suppose we have a list of numbers called nums. We have to find the length of the longest sublist such that (minimum length 3) its values are strictly increasing and then decreasing. So, if the input is like nums = [7, 1, 3, 5, 2, 0], then the output will be 5, as the sublist is [2, 4, 6, 3, 1] is strictly increasing th...	[ { "code": null, "e": 1244, "s": 1062, "text": "Suppose we have a list of numbers called nums. We have to find the length of the longest sublist such that (minimum length 3) its values are strictly increasing and then decreasing." }, { "code": null, "e": 1397, "s": 1244, "text": "...
A modified game of Nim in C ?	Modified game of Nim is an optimisation games of arrays. This game predicts the winner based on the starting player and optimal moves. Game Logic − In this game, we are given an array{}, that contains elements. There are generally two players that play the game namly player1 and player2. The aim of both is to make sure...	[ { "code": null, "e": 1197, "s": 1062, "text": "Modified game of Nim is an optimisation games of arrays. This game predicts the winner based on the starting player and optimal moves." }, { "code": null, "e": 1670, "s": 1197, "text": "Game Logic − In this game, we are given an arra...
Sorting a Map by value in C++ STL - GeeksforGeeks	31 May, 2020 Maps are associative containers that store elements in a mapped fashion. Each element has a key value and a mapped value. No two mapped values can have equal key values. By default, a Map in C++ is sorted in increasing order based on its key. Below is the various method to achieve this: Method 1 – using th...	[ { "code": null, "e": 24297, "s": 24269, "text": "\n31 May, 2020" }, { "code": null, "e": 24585, "s": 24297, "text": "Maps are associative containers that store elements in a mapped fashion. Each element has a key value and a mapped value. No two mapped values can have equal key v...
Implementation of Lasso, Ridge and Elastic Net	15 May, 2021 In this article, we will look into the implementation of different regularization techniques. First, we will start with multiple linear regression. For that, we require the python3 environment with sci-kit learn and pandas preinstall. We can also use google collaboratory or any other jupyter notebook envir...	[ { "code": null, "e": 28, "s": 0, "text": "\n15 May, 2021" }, { "code": null, "e": 404, "s": 28, "text": "In this article, we will look into the implementation of different regularization techniques. First, we will start with multiple linear regression. For that, we require the py...
Program to calculate Kinetic Energy and Potential Energy	12 Jul, 2021 Given three float values M, H, and V representing the mass, velocity, and height of an object respectively the task is to calculate its Kinetic Energy as well as its Potential Energy, Note: The value of acceleration due to gravity (g) is 9.8 and ignore units. Examples: Input: M = 25, H = 10, V = 15Outpu...	[ { "code": null, "e": 53, "s": 25, "text": "\n12 Jul, 2021" }, { "code": null, "e": 316, "s": 53, "text": "Given three float values M, H, and V representing the mass, velocity, and height of an object respectively the task is to calculate its Kinetic Energy as well as its Potentia...
How to get the width and height of an image ?	24 Jun, 2019 Given an image and the task is to get the width and height of the image using JavaScript. The width and height property is used to display the image width and height. Syntax for width: var width = this.width; Syntax for height: var height = this.height; Example 1: This example selects the image and then us...	[ { "code": null, "e": 54, "s": 26, "text": "\n24 Jun, 2019" }, { "code": null, "e": 221, "s": 54, "text": "Given an image and the task is to get the width and height of the image using JavaScript. The width and height property is used to display the image width and height." }, ...
How to set the Size of the RadioButton in C#?	30 Jun, 2019 In Windows Forms, RadioButton control is used to select a single option among the group of the options. For example, select your gender from the given list, so you will choose only one option among three options like Male or Female or Transgender.In Windows Forms, you are allowed to adjust the size of the ...	[ { "code": null, "e": 28, "s": 0, "text": "\n30 Jun, 2019" }, { "code": null, "e": 521, "s": 28, "text": "In Windows Forms, RadioButton control is used to select a single option among the group of the options. For example, select your gender from the given list, so you will choose...
How to convert string to array of integers in java?	You can convert a String to integer using the parseInt() method of the Integer class. To convert a string array to an integer array, convert each element of it to integer and populate the integer array with them. Live Demo import java.util.Arrays; public class StringToIntegerArray { public static void main(String a...	[ { "code": null, "e": 1275, "s": 1062, "text": "You can convert a String to integer using the parseInt() method of the Integer class. To convert a string array to an integer array, convert each element of it to integer and populate the integer array with them." }, { "code": null, "e": 128...
Apache Camel - CamelContext	CamelContext provides access to all other services in Camel as shown in the following figure − Let us look at the various services. The Registry module by default is a JNDI registry, which holds the name of the various Javabeans that your application uses. If you use Camel with Spring, this will be the Spring Applicati...	[ { "code": null, "e": 1966, "s": 1871, "text": "CamelContext provides access to all other services in Camel as shown in the following figure −" }, { "code": null, "e": 2926, "s": 1966, "text": "Let us look at the various services. The Registry module by default is a JNDI registry,...
JupyterLab is Now Available as a Desktop App. Should You Care? \| by Dario Radečić \| Towards Data Science	The most popular data science IDE just got better. The days of launching JupyterLab through the terminal are thankfully over, as the desktop version was released weeks ago. Yes, you read that right — you can now install JupyterLab as a desktop application on any OS. And this article will show you how. Don’t feel like r...	[ { "code": null, "e": 474, "s": 171, "text": "The most popular data science IDE just got better. The days of launching JupyterLab through the terminal are thankfully over, as the desktop version was released weeks ago. Yes, you read that right — you can now install JupyterLab as a desktop application...
How should I enable LOAD DATA LOCAL INFILE in my.cnf in MySQL?	We can enable it with the help of the SET command with GLOBAL. The first time, local infile will be off. The following is the syntax. mysql> SHOW GLOBAL VARIABLES LIKE 'local_infile'; Here is the output. +---------------+-------+ \| Variable_name \| Value \| +---------------+-------+ \| local_infile \| OFF \| +----------...	[ { "code": null, "e": 1167, "s": 1062, "text": "We can enable it with the help of the SET command with GLOBAL. The first time, local infile will be off." }, { "code": null, "e": 1196, "s": 1167, "text": "The following is the syntax." }, { "code": null, "e": 1247, "...
Quantum Physics Visualization With Python \| by Syed Sadat Nazrul \| Towards Data Science	On this blog, I have decided to review some college level quantum chemistry for deriving electron orbitals. The additional fun part is that, we are going to visualize wave functions and electron probabilities.. using Python! In 1926, Erwin Schrodinger advanced the famous wave equation that relates the energy of a syste...	[ { "code": null, "e": 397, "s": 172, "text": "On this blog, I have decided to review some college level quantum chemistry for deriving electron orbitals. The additional fun part is that, we are going to visualize wave functions and electron probabilities.. using Python!" }, { "code": null, ...
Variational Autoencoders as Generative Models with Keras \| by Kartik Chaudhary \| Towards Data Science	This article focuses on giving the readers some basic understanding of the Variational Autoencoders and explaining how they are different from the ordinary autoencoders in Machine Learning and Artificial Intelligence. Unlike vanilla autoencoders(like-sparse autoencoders, de-noising autoencoders .etc), Variational Autoe...	[ { "code": null, "e": 731, "s": 172, "text": "This article focuses on giving the readers some basic understanding of the Variational Autoencoders and explaining how they are different from the ordinary autoencoders in Machine Learning and Artificial Intelligence. Unlike vanilla autoencoders(like-spar...
Removing an element from C++ std::vector<> by index?	Remove an element from C++ std::vector<> by index can be done by following way − Live Demo #include<iostream> #include<vector> using namespace std; int main() { vector<int> v; //declare vector //insert elements into vector v.push_back(-10); v.push_back(7); v.push_back(6); // Deletes the first element...	[ { "code": null, "e": 1143, "s": 1062, "text": "Remove an element from C++ std::vector<> by index can be done by following way −" }, { "code": null, "e": 1154, "s": 1143, "text": " Live Demo" }, { "code": null, "e": 1481, "s": 1154, "text": "#include<iostream>\...
How can I iterate through two lists in parallel in Python?	Assuming that two lists may be of unequal length, parallel traversal over common indices can be done using for loop over over range of minimum length >>> L1 ['a', 'b', 'c', 'd'] >>> L2 [4, 5, 6] >>> l=len(L1) if len(L1)<=len(L2)else len(L2) >>> l 3 >>> for i in range(l): print (L1[i], L2[i]) a 4 b 5 c 6 A more pyt...	[ { "code": null, "e": 1212, "s": 1062, "text": "Assuming that two lists may be of unequal length, parallel traversal over common indices can be done using for loop over over range of minimum length" }, { "code": null, "e": 1372, "s": 1212, "text": ">>> L1\n['a', 'b', 'c', 'd']\n>>...
Get ceiling value of a number using Math.ceil in Java	In order to get the ceiling value of a number in Java, we use the java.lang.Math.ceil() method. The Math.ceil() method returns the smallest (closest to negative infinity) double value which is greater than or equal to the parameter and has a value which is equal to a mathematical integer on the number line. If the para...	[ { "code": null, "e": 1595, "s": 1062, "text": "In order to get the ceiling value of a number in Java, we use the java.lang.Math.ceil() method. The Math.ceil() method returns the smallest (closest to negative infinity) double value which is greater than or equal to the parameter and has a value which...
Difference Between COMMIT and ROLLBACK in SQL	In this post, we will understand the difference between COMMIT and ROLLBACK in SQL. It validates the modifications that are made by the current transaction. It validates the modifications that are made by the current transaction. Once the COMMIT statement has been executed, the transaction can’t be rolled back using RO...	[ { "code": null, "e": 1146, "s": 1062, "text": "In this post, we will understand the difference between COMMIT and ROLLBACK in SQL." }, { "code": null, "e": 1219, "s": 1146, "text": "It validates the modifications that are made by the current transaction." }, { "code": nul...
C# Program to pass Parameter to a Thread	To work with threads, add the following namespace in your code − using System.Threading; Firstly, you need to create a new thread in C# − Thread thread = new Thread(threadDemo); Above, threadDemo is our thread function. Now pass a parameter to the thread − thread.Start(str); The parameter set above is − String str = "H...	[ { "code": null, "e": 1127, "s": 1062, "text": "To work with threads, add the following namespace in your code −" }, { "code": null, "e": 1151, "s": 1127, "text": "using System.Threading;" }, { "code": null, "e": 1200, "s": 1151, "text": "Firstly, you need to c...
What are factory functions in JavaScript ?	24 Jun, 2021 The Factory Function is similar to constructor functions/class functions, but instead of using new to create an object, factory functions simply creates an object and returns it. Factory Functions are a very useful tool in JavaScript. Factory Functions in JavaScript are similar to constructor functions/cla...	[ { "code": null, "e": 52, "s": 24, "text": "\n24 Jun, 2021" }, { "code": null, "e": 231, "s": 52, "text": "The Factory Function is similar to constructor functions/class functions, but instead of using new to create an object, factory functions simply creates an object and returns...
Longest Zig-Zag Subsequence	10 Jun, 2021 The longest Zig-Zag subsequence problem is to find length of the longest subsequence of given sequence such that all elements of this are alternating. If a sequence {x1, x2, .. xn} is alternating sequence then its element satisfy one of the following relation : x1 < x2 > x3 < x4 > x5 < .... xn or x1 ...	[ { "code": null, "e": 52, "s": 24, "text": "\n10 Jun, 2021" }, { "code": null, "e": 315, "s": 52, "text": "The longest Zig-Zag subsequence problem is to find length of the longest subsequence of given sequence such that all elements of this are alternating. If a sequence {x1, x2, ...
Converting string ‘yyyy-mm-dd’ into DateTime in Python	23 Aug, 2021 In this article, we are going to convert DateTime string of the format ‘yyyy-mm-dd’ into DateTime using Python. yyyy-mm-dd stands for year-month-day . We can convert string format to datetime by using the strptime() function. We will use the ‘%Y/%m/%d’ format to get the string to datetime. Syntax: datet...	[ { "code": null, "e": 53, "s": 25, "text": "\n23 Aug, 2021" }, { "code": null, "e": 166, "s": 53, "text": "In this article, we are going to convert DateTime string of the format ‘yyyy-mm-dd’ into DateTime using Python. " }, { "code": null, "e": 205, "s": 166, "...
Difference between NULL pointer, Null character (‘\0’) and ‘0’ in C with Examples	01 Jun, 2020 NULL Pointer:The integer constant zero(0) has different meanings depending upon it’s used. In all cases, it is an integer constant with the value 0, it is just described in different ways.If any pointer is being compared to 0, then this is a check to see if the pointer is a null pointer. This 0 is then ref...	[ { "code": null, "e": 54, "s": 26, "text": "\n01 Jun, 2020" }, { "code": null, "e": 561, "s": 54, "text": "NULL Pointer:The integer constant zero(0) has different meanings depending upon it’s used. In all cases, it is an integer constant with the value 0, it is just described in d...
Program to print the Alphabets of a Given Word using * pattern	15 Jun, 2021 Given a word str, the task is to print the alphabets of this word using * pattern.Examples: Input: GFG Output: ****** * * * * **** * * * * * * *** * ***** ** ****** * * * ...	[ { "code": null, "e": 54, "s": 26, "text": "\n15 Jun, 2021" }, { "code": null, "e": 148, "s": 54, "text": "Given a word str, the task is to print the alphabets of this word using * pattern.Examples: " }, { "code": null, "e": 401, "s": 148, "text": "Input: GFG\...
How to Install Golang on MacOS?	06 Oct, 2021 Before, we start with the process of Installing Golang on our System. We must have first-hand knowledge of What the Go Language is and what it actually does? Go is an open-source and statically typed programming language developed in 2007 by Robert Griesemer, Rob Pike, and Ken Thompson at Google but launch...	[ { "code": null, "e": 28, "s": 0, "text": "\n06 Oct, 2021" }, { "code": null, "e": 1004, "s": 28, "text": "Before, we start with the process of Installing Golang on our System. We must have first-hand knowledge of What the Go Language is and what it actually does? Go is an open-so...
CSS \| Combinators	30 Jun, 2021 CSS combinators are explaining the relationship between two selectors. CSS selectors are the patterns used to select the elements for style purpose. A CSS selector can be a simple selector or a complex selector consisting of more than one selector connected using combinators. There are four types of combin...	[ { "code": null, "e": 54, "s": 26, "text": "\n30 Jun, 2021" }, { "code": null, "e": 413, "s": 54, "text": "CSS combinators are explaining the relationship between two selectors. CSS selectors are the patterns used to select the elements for style purpose. A CSS selector can be a s...
Sum of all subsequences of length K	04 May, 2021 Given an array arr[]and an integer K, the task is to find the sum of all K length subsequences from the given array. Example: Input: arr[] = {2, 3, 4}, K = 2 Output: 18 Explanation: There are 3 possible subsequences of length 2 which are {2, 3}, {2, 4} and {3, 4} The sum of all 2 length subsequences is 5 ...	[ { "code": null, "e": 52, "s": 24, "text": "\n04 May, 2021" }, { "code": null, "e": 169, "s": 52, "text": "Given an array arr[]and an integer K, the task is to find the sum of all K length subsequences from the given array." }, { "code": null, "e": 179, "s": 169, ...
Regex - reusing patterns to capture groups in JavaScript?	For this, use regular expression with digit along with $. var groupValues1 = "10 10 10"; var groupValues2 = "10 10 10 10"; var groupValues3 = "10 10"; var regularExpression = /^(\d+)(\s)\1\2\1$/; var isValidGroup1 = regularExpression.test(groupValues1); var isValidGroup2 = regularExpression.test(groupValues2); var isVa...	[ { "code": null, "e": 1245, "s": 1187, "text": "For this, use regular expression with digit along with $." }, { "code": null, "e": 1986, "s": 1245, "text": "var groupValues1 = \"10 10 10\";\nvar groupValues2 = \"10 10 10 10\";\nvar groupValues3 = \"10 10\";\nvar regularExpression ...
LocalDate getMonth() method in Java	28 Nov, 2018 The getMonth() method of LocalDate class in Java gets the month-of-year field using the Month enum. Syntax: public Month getMonth() Parameter: This method does not accepts any parameter. Return Value: The function returns the month of the year. Below programs illustrate the getMonth() method of LocalDate ...	[ { "code": null, "e": 28, "s": 0, "text": "\n28 Nov, 2018" }, { "code": null, "e": 128, "s": 28, "text": "The getMonth() method of LocalDate class in Java gets the month-of-year field using the Month enum." }, { "code": null, "e": 136, "s": 128, "text": "Syntax...
C# \| Data Types	18 Jun, 2020 Data types specify the type of data that a valid C# variable can hold. C# is a strongly typed programming language because in C#, each type of data (such as integer, character, float, and so forth) is predefined as part of the programming language and all constants or variables defined for a given program ...	[ { "code": null, "e": 53, "s": 25, "text": "\n18 Jun, 2020" }, { "code": null, "e": 406, "s": 53, "text": "Data types specify the type of data that a valid C# variable can hold. C# is a strongly typed programming language because in C#, each type of data (such as integer, characte...
Replace a character c1 with c2 and c2 with c1 in a string S	15 Jun, 2022 Given a string S, c1 and c2. Replace character c1 with c2 and c2 with c1. Examples: Input : grrksfoegrrks, c1 = e, c2 = r Output : geeksforgeeks Input : ratul, c1 = t, c2 = h Output : rahul Traverse through the string and check for the occurrences of c1 and c2. If c1 is found then r...	[ { "code": null, "e": 53, "s": 25, "text": "\n15 Jun, 2022" }, { "code": null, "e": 139, "s": 53, "text": "Given a string S, c1 and c2. Replace character c1 with c2 and c2 with c1. Examples: " }, { "code": null, "e": 265, "s": 139, "text": "Input : grrksfoegrr...
Program to calculate the Surface Area of a Triangular Prism	18 Mar, 2021 In mathematics, a triangular prism is a three-dimensional solid shape with two identical ends connected by equal parallel lines, and have 5 faces, 9 edges, and 6 vertices. where “b” is the length of the base, “h” is the height of the triangle, “s1, s2, s3” are the respective length of each side of the tri...	[ { "code": null, "e": 28, "s": 0, "text": "\n18 Mar, 2021" }, { "code": null, "e": 201, "s": 28, "text": "In mathematics, a triangular prism is a three-dimensional solid shape with two identical ends connected by equal parallel lines, and have 5 faces, 9 edges, and 6 vertices. " ...
Working With the TextView in Android	10 Jun, 2021 TextView in Android is one of the basic and important UI elements. This plays a very important role in the UI experience and depends on how the information is displayed to the user. This TextView widget in android can be dynamized in various contexts. For example, if the important part of the information i...	[ { "code": null, "e": 28, "s": 0, "text": "\n10 Jun, 2021" }, { "code": null, "e": 708, "s": 28, "text": "TextView in Android is one of the basic and important UI elements. This plays a very important role in the UI experience and depends on how the information is displayed to the...
Generate simple ASCII tables using prettytable in Python	29 Aug, 2020 Prettytable is a Python library used to print ASCII tables in an attractive form and to read data from CSV, HTML, or database cursor and output data in ASCII or HTML. We can control many aspects of a table, such as the width of the column padding, the alignment of text, or the table border. In order to be...	[ { "code": null, "e": 28, "s": 0, "text": "\n29 Aug, 2020" }, { "code": null, "e": 321, "s": 28, "text": "Prettytable is a Python library used to print ASCII tables in an attractive form and to read data from CSV, HTML, or database cursor and output data in ASCII or HTML. We can c...
Reader read() method in Java with Examples	07 Feb, 2019 The read() method of Reader Class in Java is used to read a single character from the stream. This method blocks the stream till: It has taken some input from the stream. Some IOException has occurred It has reached the end of the stream while reading. This method is declared as abstract method. It means t...	[ { "code": null, "e": 52, "s": 24, "text": "\n07 Feb, 2019" }, { "code": null, "e": 182, "s": 52, "text": "The read() method of Reader Class in Java is used to read a single character from the stream. This method blocks the stream till:" }, { "code": null, "e": 223, ...
Minimum swaps and K together \| Practice \| GeeksforGeeks	Given an array arr of n positive integers and a number k. One can apply a swap operation on the array any number of times, i.e choose any two index i and j (i < j) and swap arr[i] , arr[j] . Find the minimum number of swaps required to bring all the numbers less than or equal to k together, i.e. make them a contiguous ...	[ { "code": null, "e": 568, "s": 238, "text": "Given an array arr of n positive integers and a number k. One can apply a swap operation on the array any number of times, i.e choose any two index i and j (i < j) and swap arr[i] , arr[j] . Find the minimum number of swaps required to bring all the numbe...
Vertex Cover Problem \| Set 1 (Introduction and Approximate Algorithm)	18 Aug, 2021 A vertex cover of an undirected graph is a subset of its vertices such that for every edge (u, v) of the graph, either ‘u’ or ‘v’ is in the vertex cover. Although the name is Vertex Cover, the set covers all edges of the given graph. Given an undirected graph, the vertex cover problem is to find minimum si...	[ { "code": null, "e": 54, "s": 26, "text": "\n18 Aug, 2021" }, { "code": null, "e": 413, "s": 54, "text": "A vertex cover of an undirected graph is a subset of its vertices such that for every edge (u, v) of the graph, either ‘u’ or ‘v’ is in the vertex cover. Although the name is...
Daemon Thread in Java - GeeksforGeeks	07 Dec, 2021 Daemon thread in Java is a low-priority thread that runs in the background to perform tasks such as garbage collection. Daemon thread in Java is also a service provider thread that provides services to the user thread. Its life depends on the mercy of user threads i.e. when all the user threads die, JVM te...	[ { "code": null, "e": 24050, "s": 24022, "text": "\n07 Dec, 2021" }, { "code": null, "e": 24393, "s": 24050, "text": "Daemon thread in Java is a low-priority thread that runs in the background to perform tasks such as garbage collection. Daemon thread in Java is also a service pro...