Experts in Postgres and Open Source Infrastructure

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.

In PostgreSQL, the GROUP BY clause is used along with the SELECT statement to group several rows having identical data returned by the SELECT statement.

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.

In PostgreSQL, the “INSERT INTO” statement is used to add/insert an individual or multiple records into a specific table.

In PostgreSQL, the AND and OR operators are used to combine more than one condition and are referred to as conjunctive, logical, or boolean operators.