Postgres and Open Source Experts

The PostgreSQL json_typeof() function and the jsonb_typeof() function are used to get the data types of the JSON and JSONB values, respectively, in the string format.

In PostgreSQL, the ASCII() function is used to find the ASCII code for the given characters. This character can be a special character as well.

The degrees() function takes in the angle in radians with double precision data type, and converts and returns the angle value in degrees also having double precision data type.

Postgres offers several methods to display/show these errors to users and notify them through messages so that the program can be executed normally as expected and without any interruption.

The json_populate_recordset() function converts the JSON array into a set of data rows. The JSON array can contain multiple JSON objects, which can be converted into arrays by using it.

Use the pi() function in PostgreSQL to get the mathematical constant value of π. pi() can be used in mathematical expressions to use the value of π.

PL/pgSQL supports block structure. The block has two sections; a declaration and a body. Sub-block structure is also supported by PL/pgSQL.

In PostgreSQL, the full-text search returns all the possible results for the searched terms and their variants as well which was a drawback of the simple search approach.

SELECT if String Contains a Substring Match in PostgreSQL can be accomplished using different methods, such as LIKE and ILIKE, position(), substring(), etc.

In Postgres, the UNION, INTERSECT, and EXCEPT are the set operators that are applied on at least two tables to get a specific combined result.