MySQL Query to Select Date from Current Date - 3 Weeks

George John
Updated on 30-Jul-2019 22:30:26

787 Views

Use the concept of DATE_SUB(). Let us first create a table −mysql> create table DemoTable    (    Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,    ArrivalDate datetime    ); Query OK, 0 rows affected (1.02 sec)Note: Let’s say the current date is 2019-06-08Insert some records in the table using insert command −mysql> insert into DemoTable(ArrivalDate) values('2019-05-15'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable(ArrivalDate) values('2019-06-08'); Query OK, 1 row affected (0.24 sec) mysql> insert into DemoTable(ArrivalDate) values('2019-05-20'); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable(ArrivalDate) values('2019-05-12'); Query OK, 1 row affected (0.12 sec)Display ... Read More

Sort Multiple Columns with a Single Query

Rama Giri
Updated on 30-Jul-2019 22:30:26

229 Views

Let us first create a table −mysql> create table DemoTable     -> (     -> Id int,     -> Value int     -> ); Query OK, 0 rows affected (0.68 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(100, 85885); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable values(101, 885995474); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values(100, 895943); Query OK, 1 row affected (0.20 sec)Display all records from the table using select statement −mysql> select *from DemoTable;Output+------+-----------+ | Id   | ... Read More

Split Array and Add First Part to End in C++

Arnab Chakraborty
Updated on 30-Jul-2019 22:30:26

524 Views

Here we will see how to split an array, and add the first part after splitting at the end position. Suppose the array contents are {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}. We want to cut this intro two parts. The first part is from index 0 to 3 (split size 4), and second part is rest. After adding the first part at the end, the array elements will be like this {4, 5, 6, 7, 8, 9, 0, 1, 2, 3}. To solve this problem, we will follow this algorithm.AlgorithmsplitArray(arr, n, k)begin    for i := ... Read More

Python Program to Count Words in a Given String

Chandu yadav
Updated on 30-Jul-2019 22:30:26

3K+ Views

Lets suppose we have a ‘string’ and the ‘word’ and we need to find the count of occurence of this word in our string using python. This is what we are going to do in this section, count the number of word in a given string and print it.Count the number of words in a given stringMethod 1: Using for loop#Method 1: Using for looptest_stirng = input("String to search is : ") total = 1 for i in range(len(test_stirng)):    if(test_stirng[i] == ' ' or test_stirng == '' or test_stirng == '\t'):       total = total + ... Read More

Token Passing in Bit Map Protocol

Vikyath Ram
Updated on 30-Jul-2019 22:30:26

2K+ Views

Bit-map protocol is a collision free protocol that operates in the Medium Access Control (MAC) layer of the OSI model. It resolves any possibility of collisions while multiple stations are contending for acquiring a shared channel for transmission. In this protocol, if a station wishes to transmit, it broadcasts itself before the actual transmission. Every station gets its turn for transmission in a predefined order. A method to accomplish this is to use the method of token passing.Token Passing MechanismA token is a small message that circulates among the stations of a computer network providing permission to the stations for ... Read More

Implement Expand and Collapse Notification in Android

Anvi Jain
Updated on 30-Jul-2019 22:30:26

821 Views

This example demonstrate about How to implement expand and collapse notification in Android.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 − Add the following code to res/layout/activity_main.xml.     Step 3 − Add the following code to src/MainActivity.package app.tutorialspoint.com.notifyme ; import android.app.NotificationChannel ; import android.app.NotificationManager ; import android.os.Bundle ; import android.support.v4.app.NotificationCompat ; import android.support.v7.app.AppCompatActivity ; import android.view.View ; public class MainActivity extends AppCompatActivity {    public static final String NOTIFICATION_CHANNEL_ID = "10001" ;    private final static String default_notification_channel_id = "default" ... Read More

Get Specific Object from Array of Objects in MongoDB Document

Nishtha Thakur
Updated on 30-Jul-2019 22:30:26

443 Views

To get specific object from array of objects, use positional operator($). Let us first create a collection with documents −> db.getASpecificObjectDemo.insertOne( ...   { ...      _id :1, f ...      "CustomerName" : "Larry", ...      "CustomerDetails" : { ...         "CustomerPurchaseDescription": [{ ...            id :100, ...            "ProductName" : "Product-1", ...            "Amount":10000 ...         }, { ...               id :101, ...               "ProductName" : ... Read More

Create Dialog Box in Java with Yes, No and Cancel Buttons

Arjun Thakur
Updated on 30-Jul-2019 22:30:26

2K+ Views

For a dialog box with Yes No Cancel buttons, you need to use the JOptionPane.showConfirmDialog(), wherein you will get a confirmation dialog box.The following is an example to create a dialog box in Java with Yes No and cancel buttons −Examplepackage my; import java.awt.Dimension; import javax.swing.ImageIcon; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.SwingConstants; import javax.swing.UIManager; public class SwingDemo {    public static void main(String[] args) {       ImageIcon icon = new ImageIcon("E −ew.PNG");       JPanel panel = new JPanel();       panel.setSize(new Dimension(250, 100));       panel.setLayout(null);       JLabel label1 = ... Read More

Get Last Days of All Months in MySQL

Chandu yadav
Updated on 30-Jul-2019 22:30:26

128 Views

To get the last days of all the months, use the LAST_DAY() function from MySQL −SELECT LAST_DAY(yourColumnName) from yourTableName;Let us first create a table −mysql> create table DemoTable    (    ShippingDate date    ); Query OK, 0 rows affected (0.69 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('2019-01-12'); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable values('2019-02-01'); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable values('2019-03-04'); Query OK, 1 row affected (0.22 sec) mysql> insert into DemoTable values('2019-04-21'); Query OK, 1 row affected (0.14 sec)Display all records ... Read More

Set Auto Increment in a Table While Creating It in MySQL

Kumar Varma
Updated on 30-Jul-2019 22:30:26

192 Views

Let us first create a table. We have used AUTO_INCREMENT while creating the table to set auto increment for StudentId −mysql> create table DemoTable    -> (    -> StudentId int NOT NULL AUTO_INCREMENT,    -> StudentFirstName varchar(100),    -> StudentLastName varchar(100),    -> StudentAge int,    -> StudentCountryName varchar(100),    -> PRIMARY KEY(StudentId)    -> )AUTO_INCREMENT=30; Query OK, 0 rows affected (0.69 sec)Insert some records in the table using insert command −mysql> insert into DemoTable(StudentFirstName, StudentLastName, StudentAge, StudentCountryName) values('John', 'Smith', 21, 'US'); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable(StudentFirstName, StudentLastName, StudentAge, StudentCountryName) values('Chris', 'Brown', ... Read More

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