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MySQL update query to remove spaces between letters?
If you have spaces between letters then you can use REPLACE() function to remove spaces.
The syntax is as follows −
UPDATE yourTableName SET yourColumnName=REPLACE(yourColumnName,’ ‘,’’);
To understand the above syntax, let us create a table. The query to create a table is as follows −
mysql> create table removeSpaceDemo -> ( -> Id int NOT NULL AUTO_INCREMENT, -> UserId varchar(20), -> UserName varchar(10), -> PRIMARY KEY(Id) -> ); Query OK, 0 rows affected (0.81 sec)
Now insert some records in the table using insert command. The query is as follows −
mysql> insert into removeSpaceDemo(UserId,UserName) values(' John 12 67 ','John');
Query OK, 1 row affected (0.33 sec)
mysql> insert into removeSpaceDemo(UserId,UserName) values('Carol 23 ','Carol');
Query OK, 1 row affected (0.34 sec)Display all records from the table using select statement. The query is as follows −
mysql> select *from removeSpaceDemo;
The following is the output −
+----+------------------+----------+ | Id | UserId | UserName | +----+------------------+----------+ | 1 | John 12 67 | John | | 2 | Carol 23 | Carol | +----+------------------+----------+ 2 rows in set (0.00 sec)
Look at the above sample output, we have spaces in between letters.
Now use REPLACE() to remove spaces between letters. The query is as follows −
mysql> update removeSpaceDemo set UserId=REPLACE(UserId,' ',''); Query OK, 2 rows affected (0.63 sec) Rows matched: 2 Changed: 2 Warnings:
Check the table records once again. The query is as follows −
mysql> select *from removeSpaceDemo;
The following is the output −
+----+----------+----------+ | Id | UserId | UserName | +----+----------+----------+ | 1 | John1267 | John | | 2 | Carol23 | Carol | +----+----------+----------+ 2 rows in set (0.00 sec)
Updated on: 30-Jul-2019
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