Sql unique rows

SELECT
DISTINCT country
FROM City;

Source: learnsql.com

Unique element in sql

DISTINCT
- select distinct * from employees; ==> retrieves any row if it has at
least a single unique column.
- select distinct first_name from employees; ==> retrieves unique names
from table. (removes duplicates)
- select distinct count(*) from employees; retrieve number of unique rows
if any row has at least a single unique data.

Similar codes

0 vote280 views1 answer
Mysql wsrep ls
SQL
1 vote316 views1 answer
Print all records of table in mysql
SQL
0 vote321 views1 answer
Use mysql in java program
SQL
6 votes291 views1 answer
Wordpress change user password sql
SQL
2 votes281 views2 answers
Postgresql date at timezone
SQL
12 votes275 views3 answers
Duplicate a column in sql
SQL
0 vote272 views1 answer
Sql query with date
SQL
0 vote280 views1 answer
Sql find table by name
SQL
1 vote287 views1 answer
Sqlite create index
SQL
39 votes345 views5 answers
Sql drop column
SQL