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Found 4219 Articles for MySQLi
![AmitDiwan](https://www.tutorialspoint.com/assets/profiles/123055/profile/60_187394-1565938756.jpg)
124 Views
To fetch the maximum value, use any of the below-given syntaxes −select max(yourColumnName) from yourTableName; OR select *from yourTableName order by yourColumnName desc limit 1;Let us first create a table −mysql> create table DemoTable ( Value int ); Query OK, 0 rows affected (0.84 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(45); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable values(87); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable values(56); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable values(77); Query OK, 1 row affected ... Read More
![AmitDiwan](https://www.tutorialspoint.com/assets/profiles/123055/profile/60_187394-1565938756.jpg)
398 Views
For alphabetic search, use the REGEX in MySQL. Here, let’s say we are searching for records beginning with A, B or C. The syntax to use REGEXP for the same purpose is as follows −select *from yourTableName where yourColumnName REGEXP '^[ABC]';Let us first create a table −mysql> create table DemoTable ( Name varchar(100) ); Query OK, 0 rows affected (0.69 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('Chris'); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable values('David'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable values('Mike'); Query ... Read More
![AmitDiwan](https://www.tutorialspoint.com/assets/profiles/123055/profile/60_187394-1565938756.jpg)
473 Views
TRIM is used to remove leading and trailing spaces. Let us first create a table −mysql> create table DemoTable ( StudentName varchar(100) ); Query OK, 0 rows affected (0.64 sec)Insert some records in the table using insert command. Here, we have inserted records with leading and trailing whitespaces −mysql> insert into DemoTable values(' Adam Smith '); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable values(' David Miller '); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable values(' Chris Brown '); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable values(' Carol ... Read More
![AmitDiwan](https://www.tutorialspoint.com/assets/profiles/123055/profile/60_187394-1565938756.jpg)
4K+ Views
Let us first create a table −mysql> create table DemoTable ( DueDate date ); Query OK, 0 rows affected (0.56 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('2018-10-01'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values('2016-12-31'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable values('2019-07-02'); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable values('2015-01-12'); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable values('2019-04-26'); Query OK, 1 row affected (0.13 sec)Display all records from the table using select statement −mysql> select ... Read More
![AmitDiwan](https://www.tutorialspoint.com/assets/profiles/123055/profile/60_187394-1565938756.jpg)
174 Views
Let us first create a table −mysql> create table DemoTable ( AdmissionDate varchar(100) ); Query OK, 0 rows affected (0.76 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('Sunday, 11 August 2019'); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable values('Friday, 18 October 2019'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable values('Thursday, 18 July 2019'); Query OK, 1 row affected (0.23 sec)Display all records from the table using select statement −mysql> select *from DemoTable ;This will produce the following output −+-------------------------+ | AdmissionDate ... Read More
![AmitDiwan](https://www.tutorialspoint.com/assets/profiles/123055/profile/60_187394-1565938756.jpg)
242 Views
Let us first create a table −mysql> create table DemoTable ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, Value1 int, Value2 int ); Query OK, 0 rows affected (0.55 sec)Insert some records in the table using insert command −mysql> insert into DemoTable(Value1, Value2) values(100, 150); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable(Value1, Value2) values(500, 1000); Query OK, 1 row affected (0.09 sec) mysql> insert into DemoTable(Value1, Value2) values(15000, 18000); Query OK, 1 row affected (0.13 sec)Display all records from the table using select statement −mysql> select *from DemoTable;This will produce the following output ... Read More
![AmitDiwan](https://www.tutorialspoint.com/assets/profiles/123055/profile/60_187394-1565938756.jpg)
382 Views
To replace, use REPLACE() function from MySQL. Let us first create a table −mysql> create table DemoTable ( Number varchar(100) ); Query OK, 0 rows affected (0.86 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('+916578675547'); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable values('+918976676564'); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable values('+919800087678'); Query OK, 1 row affected (0.12 sec)Display all records from the table using select statement −mysql> select *from DemoTable;This will produce the following output −+---------------+ | Number ... Read More
![AmitDiwan](https://www.tutorialspoint.com/assets/profiles/123055/profile/60_187394-1565938756.jpg)
87 Views
Let us first create a table −mysql> create table DemoTable ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, ClientName varchar(100), ClientAge int ); Query OK, 0 rows affected (0.92 sec)Insert some records in the table using insert command −mysql> insert into DemoTable(ClientName, ClientAge) values('Robert', 45); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable(ClientName, ClientAge) values('Mike', 55); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable(ClientName, ClientAge) values('Bob', 42); Query OK, 1 row affected (0.08 sec) mysql> insert into DemoTable(ClientName, ClientAge) values('Sam', 47); Query OK, 1 row affected (0.11 sec)Display all records from ... Read More
![AmitDiwan](https://www.tutorialspoint.com/assets/profiles/123055/profile/60_187394-1565938756.jpg)
533 Views
To fetch the 2nd highest value, use ORDER BY DESC with LIMIT 1, 1. Let us first create a table −mysql> create table DemoTable ( StudentScore int ); Query OK, 0 rows affected (0.56 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(89); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable values(69); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable values(97); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable values(99); Query OK, 1 row affected (0.12 sec)Display all records from the table using select statement ... Read More
![AmitDiwan](https://www.tutorialspoint.com/assets/profiles/123055/profile/60_187394-1565938756.jpg)
62 Views
For this, use IS NULL property. Let us first create a table −mysql> create table DemoTable ( EmployeeName varchar(100), EmployeeAge int ); Query OK, 0 rows affected (0.59 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('Chris', 32); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable values('David', 45); Query OK, 1 row affected (0.09 sec) mysql> insert into DemoTable values('Bob', NULL); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable values('Sam', 28); Query OK, 1 row affected (0.14 sec)Display all records from the table using select statement −mysql> ... Read More