Experts in Postgres and Open Source Infrastructure

Command Prompt understands that sometimes a closed source version of software provides better features than the Open Source counterparts. However, it is Command Prompt’s considerable experience over 25 years of providing expert PostgreSQL professional services and support that there are a minute number of closed source opportunities for PostgreSQL. The ecosystem and community is vibrant and continuing to solve the problems that enterprises face in a collaborative and Open Source way.

The INSERT INTO statement is used to insert single or multiple rows into a table. To insert multiple rows in a table, the comma-separated syntax is used.

PostgreSQL provides a FETCH clause that is used to fetch/retrieve a part of rows returned by any query. It performs the same functionality as the LIMIT clause.

PostgreSQL provides several methods for truncating a specific table. The TRUNCATE TABLE command is one of them. It can be executed from the psql and pgAdmin.

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.