How to use Quotes in PostgreSQL In SQL
In PostgreSQL, quotes are used to denote strings. For instance, the following query returns a string:
Query:
--Example: Using quotes to create a string
SELECT ‘String value’
Output:
String value output
Explanation: When using quotes, it’s important to note that column names should not be enclosed in quotes, as it results in a constant value in each row:
Quotes select the text in the form of a string. We cannot enclose column names in quotes as it will result in a string with that value instead. See the following example.
Query:
-- Display the contents of the customer table with a constant string
SELECT Name, 'Name' FROM customer;
Output:
query output
Explanation: As we can see the column name when enclosed just returns a constant value in each row.
How to Insert Text With Single Quotes in PostgreSQL
SQL stands for structured query language and is used to query databases for analytical needs. While using arithmetic queries, some results require strings to help them understand better. Strings can be formed by enclosing text in quotes. However in a case when quotes are themselves required in a string, then we need to escape them. In this article, we are going to see how we can escape a single quote in PostgreSQL.