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For this, use MONTH() and YEAR(). Let us first create a table −mysql> create table DemoTable1846 ( PurchaseDate date ); Query OK, 0 rows affected (0.00 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1846 values('2019-01-10'); Query OK, 1 row affected (0.00 sec) mysql> insert into DemoTable1846 values('2019-12-24'); Query OK, 1 row affected (0.00 sec) mysql> insert into DemoTable1846 values('2018-09-21'); Query OK, 1 row affected (0.00 sec) mysql> insert into DemoTable1846 values('2017-10-26'); Query OK, 1 row affected (0.00 sec)Display all records from the table using select statement −mysql> select * ... Read More
For this, you can use the concept of INTERVAL and DATE_SUB(). Let us first create a table −mysql> create table DemoTable1845 ( ArrivalDate date ); Query OK, 0 rows affected (0.00 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1845 values('2019-12-02'); Query OK, 1 row affected (0.00 sec) mysql> insert into DemoTable1845 values('2019-11-18'); Query OK, 1 row affected (0.00 sec) mysql> insert into DemoTable1845 values('2019-12-18'); Query OK, 1 row affected (0.00 sec) mysql> insert into DemoTable1845 values('2019-12-25'); Query OK, 1 row affected (0.00 sec) mysql> insert into DemoTable1845 values('2019-11-15'); Query ... Read More
For this, you can use CONCAT() and round(). Let us first create a table −mysql> create table DemoTable1844 ( Number int, TotalNumber int ); Query OK, 0 rows affected (0.00 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1844 values(50, 500); Query OK, 1 row affected (0.00 sec) mysql> insert into DemoTable1844 values(80, 500); Query OK, 1 row affected (0.00 sec) mysql> insert into DemoTable1844 values(98, 500); Query OK, 1 row affected (0.00 sec) mysql> insert into DemoTable1844 values(45, 500); Query OK, 1 row affected (0.00 sec)Display all ... Read More
For this, use MySQL YEAR() function. Let us first create a table −mysql> create table DemoTable1843 ( StartDate date, EndDate date ); Query OK, 0 rows affected (0.00 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1843 values('2019-01-21', '2019-10-12'); Query OK, 1 row affected (0.00 sec) mysql> insert into DemoTable1843 values('2018-10-12', '2018-12-31'); Query OK, 1 row affected (0.00 sec) mysql> insert into DemoTable1843 values('2016-04-01', '2017-05-02'); Query OK, 1 row affected (0.00 sec)Display all records from the table using select statement −mysql> select * from DemoTable1843;This will produce the ... Read More
To multiply with NULL row, you can use COALESCE(). Let us first create a table −mysql> create table DemoTable1842 ( NumberOfItems int, Amount int ); Query OK, 0 rows affected (0.00 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1842 values(10, 40); Query OK, 1 row affected (0.00 sec) mysql> insert into DemoTable1842 values(20, 5); Query OK, 1 row affected (0.00 sec) mysql> insert into DemoTable1842 values(NULL, 10); Query OK, 1 row affected (0.00 sec)Display all records from the table using select statement −mysql> select * from DemoTable1842;This ... Read More
For this, you can use WHERE clause along with subquery. Let us first create a table −mysql> create table DemoTable1840 ( UserName varchar(20), UserType ENUM('GUEST', 'ADMIN') ); Query OK, 0 rows affected (0.00 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1840 values('Chris', 'Admin'); Query OK, 1 row affected (0.00 sec) mysql> insert into DemoTable1840 values('David', 'Guest'); Query OK, 1 row affected (0.00 sec) mysql> insert into DemoTable1840 values('Chris', 'Guest'); Query OK, 1 row affected (0.00 sec)Display all records from the table using select statement −mysql> select * ... Read More
The syntax for the fastest way is given below. Here, we have used INSERT INTO just once and formed an optimized way −insert into yourTableName values(NULL, yourValue1', yourValue2), (NULL, yourValue1', yourValue2), ....N;Let us first create a table −mysql> create table DemoTable1839 ( ClientId int NOT NULL AUTO_INCREMENT PRIMARY KEY, ClientName varchar(20), ClientAge int ); Query OK, 0 rows affected (0.00 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1839 values(NULL, 'Chris', 29), (NULL, 'Chris', 29), (NULL, 'Chris', 29), (NULL, 'Chris', 29), (NULL, 'Chris', 29), (NULL, 'Chris', ... Read More
To check substring in a string, the code is as follows in PHP −Example Live DemoOutputThis will produce the following output−String = How I Met Your Mother Substring = Mother Substring found successfullyExampleLet us now see another example − Live DemoOutputThis will produce the following output−String = In the Heart of Sea Substring = Ocean Substring not found
To add days to $Date in PHP, the code is as follows−Example Live DemoOutputThis will produce the following output−Displaying date... Date = 2019-11-11 Displaying updated date... 2019-12-01ExampleLet us now see another example − Live DemoOutputThis will produce the following output−Displaying Date...2019/11/11 Displaying Updated Date... 2019/12/06
To convert string to boolean in PHP, the code is as follows. Use the filter_val() method−Example Live DemoOutputThis will produce the following output−Displaying Sunday as first day of a week... First day (next week) = Sunday - 15/12/2019 bool(false)ExampleLet us now see another example − Live DemoOutputThis will produce the following output−bool(false) bool(true) bool(false) bool(false)