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To copy all rows of a table to another table, use the below syntax −insert into yourTableName2(yourColumnName1, ...N) select yourColumnName1, ..N from yourTableName1;Let us first create a table −mysql> create table DemoTable1(FirstName varchar(100)); Query OK, 0 rows affected (1.11 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1 values('John'); Query OK, 1 row affected (0.31 sec) mysql> insert into DemoTable1 values('Chris'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable1 values('Bob'); Query OK, 1 row affected (0.40 sec)Display all records from the table using select statement −mysql> select *from DemoTable1;This will produce the following ... Read More
Let’s say we have two tables and both of them have two columns PlayerId and PlayerScore. We need to add the PlayerScore from both these tables, but only for a particular PlayerId.For this, you can use UNION. Let us first create a table −mysql> create table DemoTable1(PlayerId int, PlayerScore int); Query OK, 0 rows affected (9.84 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1 values(1000, 87); Query OK, 1 row affected (3.12 sec) mysql> insert into DemoTable1 values(1000, 65); Query OK, 1 row affected (1.29 sec) mysql> insert into DemoTable1 values(1001, 10); Query OK, 1 ... Read More
Let us first create a table −mysql> create table DemoTable(DueDate datetime); Query OK, 0 rows affected (0.94 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('2019-07-10 04:20:00'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable values('2019-07-10 05:10:40'); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable values('2019-07-10 09:00:20'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable values('2019-07-10 10:01:04'); Query OK, 1 row affected (0.20 sec) mysql> insert into DemoTable values('2019-07-10 12:11:10'); Query OK, 1 row affected (0.19 sec)Display all records from the table using select statement −mysql> ... Read More
For this, you can use UNION. Let us first create a table −mysql> create table DemoTable1(FirstName varchar(1000)); Query OK, 0 rows affected (1.22 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1 values('John'); Query OK, 1 row affected (0.20 sec)Display all records from the table using select statement −mysql> select *from DemoTable1;This will produce the following output −+-----------+ | FirstName | +-----------+ | John | +-----------+ 1 row in set (0.02 sec)Here is the query to create second the table −mysql> create table DemoTable2(FirstName varchar(100)); Query OK, 0 rows affected (0.81 sec)Insert some records ... Read More
To check an empty table is in a database, you need to extract some records from the table. If the table is not empty then the table records would be returned.Let us first create a table −mysql> create table DemoTable(Id int, Name varchar(100), Age int); Query OK, 0 rows affected (0.80 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(1001, 'John', 23); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable values(1002, 'Chris', 21); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable values(1003, 'David', 22); Query OK, 1 row affected ... Read More
Let us first create a table −mysql> create table DemoTable(Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, FirstName varchar(100)); Query OK, 0 rows affected (0.70 sec)Insert some records in the table using insert command −mysql> insert into DemoTable(FirstName) values('Chris'); Query OK, 1 row affected (0.22 sec) mysql> insert into DemoTable(FirstName) values('Robert'); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable(FirstName) values('David'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable(FirstName) values('Mike'); Query OK, 1 row affected (0.24 sec) mysql> insert into DemoTable(FirstName) values('Adam'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable(FirstName) values('Carol'); Query OK, ... Read More
The HTML DOM Input password type property is associated with the input element having its type=”password”. It will always return password for the input password element.SyntaxFollowing is the syntax for password type property −passwordObject.typeExampleLet us look at an example for the Input password type property − Live Demo password type property PASSWORD: Get the above element type by clicking the below button Get Type function getType() { var t = document.getElementById("PASS1").type; document.getElementById("Sample").innerHTML = "The type for the input field is : "+t; } OutputThis will produce ... Read More
To remove apostrophe, replace it. For this, you can use REPLACE(). Following is the syntax −SET anyVariableName = REPLACE(yourVaribleName , '\'', '');To understand the above syntax, let us create a stored procedure to remove the apostrophe in MySQL −mysql> DELIMITER // mysql> CREATE PROCEDURE remove_Apostrophe(IN Value VARCHAR(200)) BEGIN SET Value = REPLACE(Value , '\'', ''); SELECT CONCAT("AFTER REMOVING APOSTROPHE THE STRING IS= ", Value); END // Query OK, 0 rows affected (0.15 sec) mysql> DELIMITER ;Call the stored procedure using CALL command −mysql> CALL remove_Apostrophe("Introduction to My'SQL");This will produce the following ... Read More
Given with number of lines the program must print the symmetric double triangle pattern with least complexity.ExampleInput: 5 Output: X X O X O X X O X O X X O X O X XThe entire problem contains 3 different partitions −Print upper half with n-1 lines for odd n or n-2 lines for even n.Print middle lines, 1 line for odd n or ... Read More
Given a string, the program must display the shortest path which will print the string over the screen using that shortest path.Like screen will store alphabets in the formatA B C D E F G H I J K L M N O P Q R S T U V W X Y ZExampleInput: HUP Output : Move Down Move Down Move Down destination reached Move Left Move Left Move Down Move Down Move Down destination reached Move Up destination reachedThe approach used here is to store the characters in the n x n matrix and perform the following operation ... Read More