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PostgreSQL SELECT INTO Statement With Examples

In PostgreSQL, the SELECT INTO statement creates a new table, copies data from the original table, and pastes it into the newly created table.

PostgreSQL RANK() Function With Examples

Postgres has a built-in Window function called RANK() that assigns a rank to every single row within a partition.

PostgreSQL Subquery Explained With Examples

A subquery in PostgreSQL is nothing more than a query within another query. It is also called a nested query, inner query, or inner select.

PL/pgSQL Record Types Explained With Examples

In PL/pgSQL, the record types are used to create the variables that can store a complete row/record of a result set.

PostgreSQL ROW_NUMBER() Function With Examples

In Postgres, the “ROW_NUMBER()” function is used with the OVER clause to operate on a set of rows and assigns a unique integer to each row.

Constants in PostgreSQL Explained With Examples

In Postgres, constants are nothing but immutable or unchangeable variables. Once a constant is initialized with a value, it stays the same throughout the program.

PL/pgSQL SELECT INTO Statement - Assign Data to a Variable

PostgreSQL supports a “PL/pgSQL SELECT INTO” statement that assists us in storing the table's data into a specific variable.

PostgreSQL Schema Search Path

In PostgreSQL, the SET SEARCH_PATH command is used to set the schema search path. The “SHOW” command is used to demonstrate the current schema search path.

How to Insert a Timestamp into a PostgreSQL Table

The inbuilt date functions like NOW(), CURRENT_TIMESTAMP, and LOCALTIMESTAMP, are used with the INSERT statement to add the current timestamp into a Postgres table.

PL/pgSQL Row Types - Assign Complete Row to a Variable in PostgreSQL

In PL/pgSQL, the row-type variables aka row variables are used to store a complete record of a result set into a specific variable.