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C++ 2021-11-19 17:27:22
variable sized array
#include <cmath> #include <cstdio> #include <vector> #include <iostream> #include <algorithm> //using namespace std; int main() { /* Enter your code here. Read input from STDIN. Print output to STDOUT */ int n; ... Add solution -
SQL 2021-11-19 02:54:08
how to use a trigger to validate input data
DELIMITER $$ CREATE TRIGGER example_before_insert_allow_only_one_active BEFORE INSERT ON example_tbl FOR EACH ROW BEGIN IF NEW.active = 1 AND (SELECT COUNT(id) FROM example_tbl WHERE active=1 AND foreign_key_id=NEW.for... Add solution -
Javascript 2021-11-19 02:45:10
react-mapbox-gl custom marker
// add markers to map geojson.features.forEach(function(marker) { // create a HTML element for each feature var el = document.createElement('div'); el.className = 'marker'; // make a marker for each feature and add to the map new mapboxgl.Mark... Add solution -
Other 2021-11-18 11:44:44
@DynamicInsert(value=true)@DynamicUpdate(value=true) used in hibernate
So after almost 2 month's wait I was finally able to derive this conclusion proposed as an answer to my own question with the help from various sources: 1.) When using dynamic-update, Hibernate has to generate the corresponding SQL string each time and t... Add solution -
Other 2021-11-18 09:57:08
longest increasing subsequence techie delight
#include <iostream> #include <vector> using namespace std; // Iterative function to find longest increasing subsequence // of given array void findLIS(int arr[], int n) { // LIS[i] stores the longest increasing s... Add solution -
Python 2021-11-17 22:50:11
long arrays storing in file python
# long arrays can be stored in csv files far more efficiently import numpy as np import csv # uploading arrays in a csv file arr1 = [i for i in range(500)] arr2 = [i for i in range(1000)] arr3 = [i for i in range(2000)] # you can write('w') or append('a'... Add solution -
Other 2021-11-16 15:24:10
virtual functions hackerrank solution
#include <cmath> #include <cstdio> #include <vector> #include <iostream> #include <algorithm> using namespace std; class Person { protected: std::string name; int age; int cur_id; public: Person() : ... Add solution -
Java 2021-11-16 09:52:05
spring amqp exchange not found
Unlike JMS, publishing to RabbitMQ is asynchronous (which is why it's generally faster), so the failure for a missing exchange is reported on a different thread; you can add a listener to get the notification instead of it just being logged. You can enab... Add solution -
SQL 2021-11-16 08:02:18
insert after update trigger
-- SQL Server (update my_table after update on my_table) CREATE TRIGGER trigger_name ON my_table AFTER UPDATE AS IF UPDATE (col_name) -- Optional, for particular column BEGIN UPDATE my_table SET my_col_date = getdate() FROM my_table END; -- Oracle (i... Add solution -
Other 2021-11-16 04:43:14
Trigger Sql server
-- SQL Server (update my_table after update on my_table) CREATE TRIGGER trigger_name ON my_table AFTER UPDATE AS IF UPDATE (col_name) -- Optional, for particular column BEGIN UPDATE my_table SET my_col_date = getdate() FROM my_table END; -- Oracle (i... Add solution
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