Answers for "how to select unique in sql"

SQL

MySQL DISTINCT

When querying data from a table, you may get duplicate rows. In order to remove these duplicate rows, you use the DISTINCT clause in the SELECT statement.

Here is the syntax of the DISTINCT clause:

SELECT DISTINCT
    select_list
FROM
    table_name;

Posted by: Guest on October-19-2020

Source

query DISTINCT

SELECT DISTINCT Column_name FROM table_name;

Posted by: Guest on April-14-2020

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.

Posted by: Guest on January-28-2021

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