Experts in Postgres and Open Source Infrastructure

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

In PostgreSQL, the WHERE clause is used to filter the results of different statements such as SELECT, DELETE, UPDATE, etc.

PostgreSQL provides a RENAME COLUMN clause that is used with the collaboration of ALTER TABLE command to rename a column.

In PostgreSQL, the “ALTER TABLE” and “ALTER COLUMN” commands, along with the TYPE Keyword, are used to change/modify the data type of any specific column.

In PostgreSQL, the DROP COLUMN command is used with the collaboration of the ALTER TABLE command to drop single or multiple columns.

In PostgreSQL, the ADD COLUMN command/statement along with the ALTER TABLE clause is used to add single or multiple columns to a table.