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PostgreSQL Basic SELECT Statement: Get the first three characters of the first name for all employees


12. Write a query to get the first three characters of the first name for all the employees in the employees table.

Sample Solution:

Code:

SELECT SUBSTRING(first_name,1,3) 
FROM employees;

Sample table: employees


Output:

pg_exercises=# SELECT SUBSTRING(first_name,1,3)
pg_exercises-# FROM employees;
 substring
-----------
 Ste
 Nee
 Lex
 Ale
 Bru
 Dav
 Val
 Dia
 Nan
 Dan
 Joh
 Ism
 Jos
 Lui
 Den
 Ale
 She
 Sig
 Guy
 Kar
 Mat
 Ada
 Pay
 Sha
 Kev
 ...
 Sus
 Her
 She
 Wil
(107 rows)

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