Can MySQL concatenate strings with ||?

George John
Updated on 30-Jul-2019 22:30:25

230 Views

Yes, you can concatenate strings with || in MySQL with the help of sql_mode. Set the sql_mode to PIPES_AS_CONCAT.The syntax is as followsset sql_mode=PIPES_AS_CONCAT;The following is the syntax to concat with the help of ||.SELECT ‘yourValue' || yourColumName AS anyAliasName FROM yourTableName;To understand the above syntax, let us create a table. The query to create a table is as followsmysql> create table PipeConcatDemo    - > (    - > Name varchar(20)    - > ); Query OK, 0 rows affected (0.93 sec)Insert some records in the table using insert command.The query is as followsmysql> insert into PipeConcatDemo values('Larry'); Query ... Read More

How to use replace () in Android textview?

Anvi Jain
Updated on 30-Jul-2019 22:30:25

2K+ Views

This example demonstrate about How to use replace () in Android textview.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.             In the above code, we have taken name as Edit text, when user click on button it will take data and replace all a values withStep 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; ... Read More

MySQL query to select one specific row and another random row?

George John
Updated on 30-Jul-2019 22:30:25

260 Views

To select one specific row and another random row, you can use ORDER BY and RAND(). Let us first create a sample table:mysql> create table oneSpecificRowAndOtherRandom    -> (    -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,    -> Name varchar(20)    -> ); Query OK, 0 rows affected (0.72 sec)Following is the query to insert some records in the table using insert command:mysql> insert into oneSpecificRowAndOtherRandom(Name) values('Larry'); Query OK, 1 row affected (0.56 sec) mysql> insert into oneSpecificRowAndOtherRandom(Name) values('Sam'); Query OK, 1 row affected (0.13 sec) mysql> insert into oneSpecificRowAndOtherRandom(Name) values('Mike'); Query OK, 1 row affected ... Read More

C++ Program to Implement Modular Exponentiation Algorithm

Nishtha Thakur
Updated on 30-Jul-2019 22:30:25

2K+ Views

This is a C++ program to implement Modular Exponentiation Algorithm.AlgorithmBegin    function modular():    // Arguments: base, exp, mod.    // Body of the function:       initialize res = 1       while (exp > 0)          if (exp mod 2 == 1)          res= (res * base) % mod          exp = exp left shift 1          base = (base * base) % mod       return res. EndExample#include using namespace std; long long modular(long long base, long long exp, int mod) {    long long res = 1;    while (exp > 0) {       if (exp % 2 == 1)          res= (res * base) % mod;       exp = exp >> 1;       base = (base * base) % mod;    }    return res; } int main() {    long long b, e;    int mod;    coutb;    coute;    coutmod;    cout

How to know whether your training is effective or not?

Anuradha Nanda
Updated on 30-Jul-2019 22:30:25

224 Views

The first day of employment for any employee: be a fresher, experienced person, or managerial, will always start off with a training session. The day-long training completes with numerous amount of information, but does so much effort made by the Organization is worth the money invested in the training sessions. We all agree that training is the key to a well-motivated, knowledgeable, and efficient staff.Here we are going to discuss the top reasons on why the training sessions do not help your employees, and why this whole expenditure on training is not fruitful. We will check out the conditions because of ... Read More

Why do people buy Kindle, even though it is a single functional device?

Suman Nanda
Updated on 30-Jul-2019 22:30:25

201 Views

Kindle is great to reduce eye tension. Kindle is absolutely easy on your sight and is very comfortable to read on. As well, the display on the latest Kindle is built to prevent glare, even in sunlight. In addition to that:Perfect Travel-Around PartnerThe Kindle is so small, light and portable that it is straightforward to carry around anywhere you go and also you don't have to worry about the edges of your publication folding anymore. It also helps that your total library suits this tiny device, so you're indulged for choice while on vacation.Read At NighttimeIf you want to learn ... Read More

Create Septet Tuple in Java using with() method

Samual Sam
Updated on 30-Jul-2019 22:30:25

159 Views

The with() method is used to create Septet Tuple in Java.Let us first see what we need to work with JavaTuples. To work with Septet class in JavaTuples, you need to import the following package −import org.javatuples.Septet;Note − Steps to download and run JavaTuples program If you are using Eclipse IDE to run Septet Class in JavaTuples, then Right Click Project → Properties → Java Build Path → Add External Jars and upload the downloaded JavaTuples jar file.The following is an example −Exampleimport org.javatuples.Septet; public class Demo {    public static void main(String[] args) {       Septet < ... Read More

Does MySQL converts bool to tinyint(1) internally?

George John
Updated on 30-Jul-2019 22:30:25

2K+ Views

Yes, MySQL internally convert bool to tinyint(1) because tinyint is the smallest integer data type.You can also say the bool is synonym for tinyint(1). Let us first create a sample table:mysql> create table boolToTinyIntDemo -> ( -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> Name varchar(20), -> isAgeGreaterThan18 bool -> ); Query OK, 0 rows affected (1.02 sec)Let us now check the description of table:mysql> desc boolToTinyIntDemo;This will produce the following output+--------------------+-------------+------+-----+---------+----------------+ | Field ... Read More

Create Pair Tuple using with() method in Java

karthikeya Boyini
Updated on 30-Jul-2019 22:30:25

192 Views

You can also create a Pair Tule in Java using the with() method.Let us first see what we need to work with JavaTuples. To work with Pair class in JavaTuples, you need to import the following package −import org.javatuples.Pair;Note − Steps to download and run JavaTuples program If you are using Eclipse IDE to run Pair Class in JavaTuples, then Right Click Project → Properties → Java Build Path → Add External Jars and upload the downloaded JavaTuples jar file.The following is an example to create Pair Tuple using with() method −import org.javatuples.Pair; public class Demo {    public static ... Read More

How to add a "created at" column in a table to set the timestamp in MySQL?

Chandu yadav
Updated on 30-Jul-2019 22:30:25

4K+ Views

You need to use ALTER command to add a created at column to an already created table in MySQL.Let us first create a table. The query to create a table is as follows. Here is your table without the “created at” columnmysql> create table formDemo - > ( - > Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, - > Email varchar(128), - > PhoneNumber varchar(15), - > Country varchar(30), - > Platform varchar(40) - > ); Query OK, 0 ... Read More

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