You can use CONCAT() function from MySQL for this. Let us first create a table −mysql> create table DemoTable    (    ClientId int NOT NULL AUTO_INCREMENT PRIMARY KEY,    ClientFirstName varchar(20),    ClientLastName varchar(20)    ); Query OK, 0 rows affected (0.50 sec)Insert some records in the table using insert command −mysql> insert into DemoTable(ClientFirstName, ClientLastName) values('John', 'Smith'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable(ClientFirstName, ClientLastName) values('John', 'Miller'); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable(ClientFirstName, ClientLastName) values('Carol', 'Taylor'); Query OK, 1 row affected (0.13 sec) mysql> insert into ... Read More

First of all, you need to enable innodb_print_all_deadlocks. Following is the syntax −set global innodb_print_all_deadlocks=1;After executing the above statement, let us execute the below syntax in order to display all deadlock logs −show engine innodb status;Let us implement the above syntax −mysql> set global innodb_print_all_deadlocks=1; Query OK, 0 rows affected (0.00 sec) mysql> show engine innodb status;This will produce the following output −+--------+------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | Type | Name | Status ... Read More

Let us first create a table −mysql> create table DemoTable    (    Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,    Value char(1)    ); Query OK, 0 rows affected (0.66 sec)Insert some records in the table using insert command −mysql> insert into DemoTable(Value) values('X'); Query OK, 1 row affected (0.20 sec) mysql> insert into DemoTable(Value) values('Y'); Query OK, 1 row affected (0.09 sec) mysql> insert into DemoTable(Value) values('X'); Query OK, 1 row affected (0.30 sec) mysql> insert into DemoTable(Value) values('X'); Query OK, 1 row affected (0.07 sec) mysql> insert into DemoTable(Value) values('Y'); Query OK, 1 ... Read More

To set a filter for type, you can use below syntax −SELECT TABLE_NAME, COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE DATA_TYPE = 'yourDataTypeName';Let us implement the above syntax to show fields only with field type text −mysql> SELECT TABLE_NAME, COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE DATA_TYPE = 'text';This will produce the following output −+---------------------------------------------+--------------------------------+ | TABLE_NAME                                  | COLUMN_NAME                    | +---------------------------------------------+--------------------------------+ | COLUMNS                                     ... Read More

To list all rows by group, you can use GROUP_CONCAT(). Let us first create a table −mysql> create table DemoTable    (    Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,    Name varchar(20),    Value varchar(100)    ); Query OK, 0 rows affected (0.62 sec)Insert some records in the table using insert command −mysql> insert into DemoTable(Name, Value) values('John', 'John'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable(Name, Value) values('Carol', 'Carol'); Query OK, 1 row affected (0.21 sec) mysql> insert into DemoTable(Name, Value) values('John', 'Works'); Query OK, 1 row affected (0.13 sec) mysql> insert ... Read More

You can achieve this with the help of CAST() function. Let us first create a table −mysql> create table DemoTable    (    Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,    Score int    ); Query OK,  0 rows affected (0.72 sec)Insert some records in the table using insert command −mysql> insert into DemoTable(Score) values(10); Query OK,  1 row affected (0.19 sec) mysql> insert into DemoTable(Score) values(100); Query OK,  1 row affected (0.14 sec) mysql> insert into DemoTable(Score) values(11); Query OK,  1 row affected (0.13 sec) mysql> insert into DemoTable(Score) values(97); Query OK,  1 row affected (0.14 sec) mysql> insert into DemoTable(Score) values(78); Query OK,  1 row affected (0.13 sec) mysql> insert into DemoTable(Score) values(89); Query OK,  1 row affected (0.18 sec)Display all records from the table using select statement −mysql> select *from DemoTable;This will produce the following output −+----+-------+ | Id | Score | +----+-------+ | 1 | 10 | ... Read More

Use regular expression along with CASE statement. Let us first create a table −mysql> create table DemoTable    (    Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,    Value varchar(20)    ); Query OK, 0 rows affected (0.66 sec)Insert some records in the table using insert command −mysql> insert into DemoTable(Value) values('101'); Query OK, 1 row affected (0.20 sec) mysql> insert into DemoTable(Value) values('P'); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable(Value) values('A'); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable(Value) values('53'); Query OK, 1 row affected (0.13 sec) mysql> ... Read More

To select specific rows, use FIND_IN_SET() function in MySQL. Let us first create a table −mysql> create table DemoTable    (    ListOfValues varchar(200)    ); Query OK, 0 rows affected (0.31 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('112, 114, 567, Java, 345'); Query OK, 1 row affected (0.06 sec) mysql> insert into DemoTable values('222, 214, 256'); Query OK, 1 row affected (0.06 sec) mysql> insert into DemoTable values('2, 567, 98, C'); Query OK, 1 row affected (0.06 sec)Display all records from the table using select statement −mysql> select *from DemoTable;This ... Read More

To perform filtering by multiple columns, use where clause along with OR. Let us first create a table −mysql> create table DemoTable    (    Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,    Name varchar(10),    Score int    ); Query OK, 0 rows affected (0.28 sec)Insert some records in the table using insert command −mysql> insert into DemoTable(Name, Score) values('John', 80); Query OK, 1 row affected (0.04 sec) mysql> insert into DemoTable(Name, Score) values('John', 90); Query OK, 1 row affected (0.06 sec) mysql> insert into DemoTable(Name, Score) values('Carol', 89); Query OK, 1 row affected (0.04 sec) ... Read More

To fetch data between two rows, use the concept of LIMIT. Let us first create a table −mysql> create table DemoTable    (    Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,    Name varchar(10)    ); Query OK, 0 rows affected (0.22 sec)Insert some records in the table using insert command −mysql> insert into DemoTable(Name) values('Larry'); Query OK, 1 row affected (0.06 sec) mysql> insert into DemoTable(Name) values('Robert'); Query OK, 1 row affected (0.05 sec) mysql> insert into DemoTable(Name) values('Chris'); Query OK, 1 row affected (0.05 sec) mysql> insert into DemoTable(Name) values('David'); Query OK, 1 row affected ... Read More