To set all values in a single column MySQL query, you can use UPDATE command.
The syntax is as follows.
update yourTableName set yourColumnName =yourValue;
To understand the above syntax, let us create a table. The query to create a table is as follows.
mysql> create table setAllValuesDemo -> ( -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> Name varchar(20), -> Amount int -> ); Query OK, 0 rows affected (0.64 sec)
Now you can insert some records in the table using insert command.
The query is as follows.
mysql> insert into setAllValuesDemo(Name,Amount) values('John',2345);
Query OK, 1 row affected (0.22 sec)
mysql> insert into setAllValuesDemo(Name,Amount) values('Carol',47586);
Query OK, 1 row affected (0.13 sec)
mysql> insert into setAllValuesDemo(Name,Amount) values('Bob',95686);
Query OK, 1 row affected (0.15 sec)
mysql> insert into setAllValuesDemo(Name,Amount) values('David',95667);
Query OK, 1 row affected (0.15 sec)Display all records from the table using select statement.
The query is as follows.
mysql> select *from setAllValuesDemo;
The following is the output.
+----+-------+--------+ | Id | Name | Amount | +----+-------+--------+ | 1 | John | 2345 | | 2 | Carol | 47586 | | 3 | Bob | 95686 | | 4 | David | 95667 | +----+-------+--------+ 4 rows in set (0.00 sec)
Here is the query to set all values in a single column MySQL query.
mysql> update setAllValuesDemo set Amount=10500; Query OK, 4 rows affected (0.20 sec) Rows matched: 4 Changed: 4 Warnings: 0
Now check the table records once again using select statement.
The query is as follows.
mysql> select *from setAllValuesDemo;
The following is the output.
+----+-------+--------+ | Id | Name | Amount | +----+-------+--------+ | 1 | John | 10500 | | 2 | Carol | 10500 | | 3 | Bob | 10500 | | 4 | David | 10500 | +----+-------+--------+ 4 rows in set (0.00 sec)