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Use GROUP_CONCAT() to perform group concatenation and set a condition. Let us first create a table −mysql> create table DemoTable813( UserId int NOT NULL AUTO_INCREMENT PRIMARY KEY, UserFirstName varchar(100), UserLastName varchar(100) ); Query OK, 0 rows affected (0.49 sec)Insert some records in the table using insert command −mysql> insert into DemoTable813(UserFirstName, UserLastName) values('Adam', 'Smith'); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable813(UserFirstName, UserLastName) values('Chris', 'Brown'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable813(UserFirstName, UserLastName) values('David', 'Miller'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable813(UserFirstName, UserLastName) values('Carol', 'Taylor'); Query ... Read More
To display results on the basis of keyword, use the LIKE operator as in the following syntax −select *from yourTableName where yourColumnName LIKE '%yourValue%';Let us first create a table −mysql> create table DemoTable812(Comments text); Query OK, 0 rows affected (0.61 sec)Insert some records in the table using insert command −mysql> insert into DemoTable812 values('Good Looking'); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable812 values('Awesome'); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable812 values('Looking Gorgeous'); Query OK, 1 row affected (0.09 sec) mysql> insert into DemoTable812 values('Good Luck'); Query OK, 1 row affected (0.20 sec) ... Read More
Yes, it is enabled by default from MySQL version 4.0. Here, we are using MySQL version 8.0.1 −mysql> select version(); +-----------+ | version() | +-----------+ | 8.0.12 | +-----------+ 1 row in set (0.00 sec)Let us now check the my.ini wherein the default engine type InnoDB is visible −Let us first create two table. One of them would be set with engine type, whereas the other one won’t be set with the engine type.The first table −mysql> create table DemoTable1(Id int NOT NULL AUTO_INCREMENT PRIMARY KEY); Query OK, 0 rows affected (0.80 sec)The second table set with ENGINE ... Read More
Yes, we can insert two or more rows in a table at once. Following is the syntax −insert into yourTableName(yourColumnName1, yourColumnName2) values(yourValue1, yourValue2), (yourValue1, yourValue2), .........N;Let us first create a table −mysql> create table DemoTable811( StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY, StudentName varchar(100), StudentAge int ); Query OK, 0 rows affected (0.54 sec)Insert some records in the table using insert command −mysql> insert into DemoTable811(StudentName, StudentAge) values('Chris', 21), ('Robert', 22), ('David', 20), ('Bob', 19), ('Carol', 23); Query OK, 5 rows affected (0.14 sec) Records: 5 Duplicates: 0 Warnings: 0Display all records from the table using select ... Read More
Let us first create a table −mysql> create table DemoTable841( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, Value varchar(100) ); Query OK, 0 rows affected (0.67 sec)Insert some records in the table using insert command −mysql> insert into DemoTable841(Value) values('X'); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable841(Value) values('Y'); Query OK, 1 row affected (0.39 sec) mysql> insert into DemoTable841(Value) values('Y'); Query OK, 1 row affected (1.62 sec) mysql> insert into DemoTable841(Value) values('Z'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable841(Value) values('X'); Query OK, 1 row affected (0.81 sec) mysql> insert into ... Read More
Let us first create a table −mysql> create table DemoTable810( First int, Second int ); Query OK, 0 rows affected (0.73 sec)Insert some records in the table using insert command −mysql> insert into DemoTable810 values(20, 40); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable810 values(70, 90); Query OK, 1 row affected (0.22 sec) mysql> insert into DemoTable810 values(120, 150); Query OK, 1 row affected (0.20 sec) mysql> insert into DemoTable810 values(78, 128); Query OK, 1 row affected (0.32 sec)Display all records from the table using select statement −mysql> select *from DemoTable810 ;This will produce the ... Read More
For this, you can use a session variable. Let us first create a table −mysql> create table DemoTable809(Price int); Query OK, 0 rows affected (0.53 sec)Insert some records in the table using insert command −mysql> insert into DemoTable809 values(40); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable809 values(50); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable809 values(60); Query OK, 1 row affected (0.12 sec)Display all records from the table using select statement −mysql> select *from DemoTable809;This will produce the following output −+-------+ | Price | +-------+ | 40 | | 50 | ... Read More
To set specific record ordering, use ORDER BY LIKE. Let us first create a table−mysql> create table DemoTable808(Value varchar(100)); Query OK, 0 rows affected (0.61 sec)Insert some records in the table using insert command −mysql> insert into DemoTable808 values('smith'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable808 values('Adamsmith'); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable808 values('Carolsmith'); Query OK, 1 row affected (0.20 sec) mysql> insert into DemoTable808 values('smithJohn'); Query OK, 1 row affected (0.16 sec)Display all records from the table using select statement −mysql> select *from DemoTable808;This will produce the following output −+------------+ ... Read More
Let us first create a table −mysql> create table DemoTable807( ClientId int NOT NULL AUTO_INCREMENT PRIMARY KEY, ClientName varchar(100), ClientCountryName varchar(100) ); Query OK, 0 rows affected (0.64 sec) Insert some records in the table using insert command −mysql> insert into DemoTable807(ClientName, ClientCountryName) values('Chris', 'UK'); Query OK, 1 row affected (0.20 sec) mysql> insert into DemoTable807(ClientName, ClientCountryName) values('David', 'AUS'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable807(ClientName, ClientCountryName) values('Robert', 'US'); Query OK, 1 row affected (0.74 sec) mysql> insert into DemoTable807(ClientName, ClientCountryName) values('Mike', 'ENG'); Query OK, 1 row affected (0.14 sec)Display all records ... Read More
To match partially, use LIKE operator. Let us first create a table −mysql> create table DemoTable806( StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY, StudentName varchar(100), StudentSubject varchar(100) ); Query OK, 0 rows affected (0.57 sec)Insert some records in the table using insert command −mysql> insert into DemoTable806(StudentName, StudentSubject) values('Chris', 'Java in Depth With Data Structure'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable806(StudentName, StudentSubject) values('Robert', 'Introduction to MySQL'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable806(StudentName, StudentSubject) values('Bob', 'C++ in Depth With Data Structure And Algorithm'); Query OK, 1 row affected ... Read More