Adding Dash Between Spaces in Field Name in MySQL

AmitDiwan
Updated on 08-Nov-2019 11:16:51

435 Views

You can use REPLACE() for this. Let us first create a table −mysql> create table DemoTable1625     -> (     -> FullName varchar(20)     -> ); Query OK, 0 rows affected (0.68 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1625 values('John Doe'); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable1625 values('Adam Smith'); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable1625 values('John Smith'); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable1625 values('Carol Taylor'); Query OK, 1 row affected (0.14 sec)Display all records from the ... Read More

Math.Round Method in C#

AmitDiwan
Updated on 08-Nov-2019 11:16:22

8K+ Views

The Math.Round() method in C# rounds a value to the nearest integer or to the specified number of fractional digits.MethodsThe following are the methods overloaded by Math.Round() −Math.Round(Double) Math.Round(Double, Int32) Math.Round(Double, Int32, MidpointRounding) Math.Round(Double, MidpointRounding) Math.Round(Decimal) Math.Round(Decimal, Int32) Math.Round(Decimal, Int32, MidpointRounding) Math.Round(Decimal, MidpointRounding)ExampleLet us now see an example to implement Math.Round() method i.e. Math.Round(Decimal) −using System; public class Demo {    public static void Main(){       Decimal val1 = 78.12m;       Decimal val2 = 30.675m;       Console.WriteLine("Decimal Value = " + val1);       Console.WriteLine("Rounded value = " + Math.Round(val1));       ... Read More

SELECT WHERE Variable in MySQL

AmitDiwan
Updated on 08-Nov-2019 11:15:50

266 Views

Use IN() for select * where var== [one of many alternatives]. Let us first create a table −mysql> create table DemoTable1624     -> (     -> ClientId int,     -> ClientName varchar(20)     -> ); Query OK, 0 rows affected (0.39 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1624 values(101, 'Chris Brown'); Query OK, 1 row affected (0.27 sec) mysql> insert into DemoTable1624 values(102, 'David Miller'); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable1624 values(103, 'John Smith'); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable1624 ... Read More

Sort Alphanumeric Column with Different Lengths in MySQL

AmitDiwan
Updated on 08-Nov-2019 11:14:54

180 Views

Let us first create a table −mysql> create table DemoTable1623     -> (     -> StudentCode varchar(20)     -> ); Query OK, 0 rows affected (0.47 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1623 values('STU-MIT-143'); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable1623 values('STU-MIT-10'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable1623 values('STU-MIT-150'); Query OK, 1 row affected (0.21 sec) mysql> insert into DemoTable1623 values('STU-MIT-148'); Query OK, 1 row affected (0.22 sec)Display all records from the table using select statement −mysql> select * from DemoTable1623; This ... Read More

int16 Equals Method in C# with Examples

AmitDiwan
Updated on 08-Nov-2019 11:13:54

157 Views

The Int16.Equals() method in C# is used to return a value indicating whether this instance is equal to a specified object or Int16.SyntaxFollowing is the syntax −public bool Equals (short ob); public override bool Equals (object ob);Above, the parameter ob for the 1st syntax is an Int16 value to compare to this instance.The parameter ob for the 2nd syntax is the object to compare to this instance.ExampleLet us now see an example to implement the Int16.Equals() method −using System; public class Demo {    public static void Main(){       short val1 = 15;       short val2 ... Read More

Array FindAll Method in C#

AmitDiwan
Updated on 08-Nov-2019 11:11:00

2K+ Views

The Array.FindAll() method in C# is used to retrieve all the elements that match the conditions defined by the specified predicate.SyntaxFollowing is the syntax −public static T[] FindAll (T[] array, Predicate match);ExampleLet us now see an example to implement the Array.FindAll() method −using System; public class Demo{    public static void Main(){       Console.WriteLine("Array elements...");       string[] arr = { "car", "bike", "truck", "bus"};       for (int i = 0; i < arr.Length; i++){          Console.Write("{0} ", arr[i]);       }       Console.WriteLine();       String[] res ... Read More

Search for Exact String Value in MySQL

AmitDiwan
Updated on 08-Nov-2019 11:10:21

187 Views

To search for the exact string value, use the concept of COLLATE. Let us first create a table −mysql> create table DemoTable1620     -> (     -> Subject varchar(20)     -> ); Query OK, 0 rows affected (0.42 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1620 values('mysql'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable1620 values('MySql'); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable1620 values('mYSQL'); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable1620 values('MySQL'); Query OK, 1 row affected (0.26 sec) mysql> insert ... Read More

Convert Datetime to Get Month Name in MySQL

AmitDiwan
Updated on 08-Nov-2019 11:09:24

368 Views

To get only month name, the syntax is as follows −select date_format(yourColumnName, '%M %Y') from yourTableName;Let us first create a table −mysql> create table DemoTable1619     -> (     -> ArrivalTime datetime     -> ); Query OK, 0 rows affected (0.45 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1619 values(now()); Query OK, 1 row affected (0.40 sec) mysql> insert into DemoTable1619 values(curdate()); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable1619 values('2019-12-31'); Query OK, 1 row affected (0.17 sec)Display all records from the table using select statement −mysql> select * ... Read More

Enhance MySQL SELECT Query for Better Performance

AmitDiwan
Updated on 08-Nov-2019 11:08:21

163 Views

For quicker querying, use MySQL IN() because it uses indexing internally. Let us first create a table −mysql> create table DemoTable1618     -> (     -> ClientId int NOT NULL AUTO_INCREMENT PRIMARY KEY,     -> ClientName varchar(20),     -> ClientEmailId varchar(30)     -> ); Query OK, 0 rows affected (1.53 sec)Insert some records in the table using insert command:mysql> insert into DemoTable1618(ClientName, ClientEmailId) values('Chris Brown', 'Brown323@gmail.com'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable1618(ClientName, ClientEmailId) values('David Miller', 'MillerDavid@gmail.com'); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable1618(ClientName, ClientEmailId) values('John Doe', ... Read More

DateTime ToShortDateString Method in C#

AmitDiwan
Updated on 08-Nov-2019 11:08:13

7K+ Views

The DateTime.ToShortDateString() method in C# is used to convert the value of the current DateTime object to its equivalent short date string representation.SyntaxFollowing is the syntax −public string ToShortDateString ();ExampleLet us now see an example to implement the DateTime.ToShortDateString() method −using System; public class Demo {    public static void Main() {       DateTime d = new DateTime(2019, 08, 11, 9, 10, 45);       Console.WriteLine("Date = {0}", d);       string str = d.ToShortDateString();       Console.WriteLine("Short date string representation = {0}", str);    } }OutputThis will produce the following output −Date = 8/11/2019 ... Read More

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