How to concatenate strings in PostgreSQL?

@orpha In PostgreSQL, you can concatenate strings using the CONCAT function. The syntax is CONCAT(string1, string2, ...). For example,

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SELECT CONCAT('Hello', ' ', 'World');

This query will return the concatenated string "Hello World".

@orpha 

In PostgreSQL, you can concatenate strings using the || operator or the CONCAT function. Here are examples of both methods:

1. Using the || operator: SELECT 'Hello' || ' ' || 'World'; -- Output: Hello World
2. Using the CONCAT function: SELECT CONCAT('Hello', ' ', 'World'); -- Output: Hello World

You can also concatenate strings with column values:

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SELECT first_name || ' ' || last_name AS full_name
FROM employees;

Note that the || operator and CONCAT function can concatenate any number of strings together.