Postgres and Open Source Experts

In PostgreSQL, the TO_JSONB() is a built-in JSON function that accepts any SQL value as an argument and converts it to JSONB format.

In PostgreSQL, the ROW_TO_JSON() is a built-in JSON function that accepts any valid SQL composite type value and converts it into a JSON object.

In PostgreSQL, the TO_JSON() is a built-in JSON function that accepts any SQL value as an argument and converts it to JSON format.

In PostgreSQL, the CUME_DIST() function retrieves the cumulative distribution of a value for the given set of values.

The ENUM_LAST() is a built-in function in Postgres that retrieves the last value of the enum specified by the parameter.

The ENUM_FIRST() is a built-in function in Postgres that retrieves the first value of the enum specified by the parameter.

The JSON_BUILD_OBJECT() function is used to create and retrieve a JSON object from a variadic parameter list of key-value pairs.

The JSON_BUILD_ARRAY() is a built-in JSON function that creates and retrieves a JSON array of different types from a variadic parameter list.

The array_to_json() is a built-in JSON function that accepts a SQL array as an argument and converts it into a JSON array.

In PostgreSQL, various methods are used to exit the Postgres command line utility, such as the “\q” or “\quit” commands, and “CTRL + C”, “CTRL + D”, or “CTRL + Z” shortcut keys.