Experts in Postgres and Open Source Infrastructure

In PostgreSQL, the BETWEEN operator is used to find a match against a range of values in SELECT, UPDATE, INSERT or DELETE queries.

In PostgreSQL, the IN operator is used with the collaboration of the WHERE clause to check the existence of a particular value in a list of values.

In Postgres, the HAVING clause is mostly used with the GROUP BY clause to filter the group/aggregate based on some specific condition.

In PostgreSQL, the DISTINCT keyword/clause is used within the SELECT statement to fetch the unique records from the result-set.

The GROUP BY clause in PostgreSQL is used with the collaboration of the SELECT statement to group several rows/items.

In PostgreSQL, specify the ORDER BY clause and column name followed by the ASC or DESC to sort the result set in ascending or descending order, respectively.

In PostgreSQL, the LIMIT clause and OFFSET clause allow us to retrieve only a subset of data returned/generated by the SELECT query.

In PostgreSQL, the DELETE query can be used with or without the WHERE clause to delete a single, multiple, or all the rows of a specific table.

In PostgreSQL, the UPDATE query is used with the assistance of the SET clause to update or modify the table’s record/data.

The SELECT statement is used to fetch one or more columns of a table. It returns a resultant table which is known as the result set or result table.