SQL SELECT DISTINCT

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The SQL DISTINCT command is used with SELECT key word to retrieve only distinct or unique data.

In a table, there may be a chance to exist a duplicate value and sometimes we want to retrieve only unique values. In such scenarios, SQL SELECT DISTINCT statement is used.

Note: SQL SELECT UNIQUE and SQL SELECT DISTINCT statements are same.

Let\’s see the syntax of select distinct statement.

  1. SELECT DISTINCT column_name ,column_name
  2. FROM  table_name;

Let\’s try to understand it by the table given below:

Student_Name Gender Mobile_Number HOME_TOWN
Raju Male 9865231470 Indore
Deepti Female 8893927056 Mumbai
Pravesh Male 4993599904 Indore

Here is a table of students from where we want to retrieve distinct information For example: distinct home-town.

  1. SELECT DISTINCT home_town
  2. FROM students

Now, it will return two rows.

HOME_TOWN
Indore
Mumbai
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