session_id
1. SESSION_ID Function
=======session_id
1. SESSION_ID Function
>>>>>>> 9d19b1c8cb744c8e86d5c15b74d8b5f719ad62beThe SESSION_ID function in H2 database is used to retrieve the unique identifier of the current session.
2. Syntax
The syntax for the SESSION_ID function in H2 database is as follows:
SESSION_ID()
Arguments
- None. The SESSION_ID function does not take any arguments.
Return
- The SESSION_ID function returns a string representing the unique identifier of the current session.
3. Notes
- The SESSION_ID function in H2 database provides a unique identifier for each session. This identifier can be used to differentiate between multiple concurrent sessions.
- The returned identifier is a string, typically in the format of a UUID (Universally Unique Identifier).
- The SESSION_ID function does not require any input parameters and can be used directly in queries or in other parts of the application.
4. Examples
Here are a few examples demonstrating the usage of the SESSION_ID function in H2 database:
Example 1 - Retrieving the session ID:
SELECT SESSION_ID() AS session_id;
Output:
session_id
------------------------------------
c7f153e7-4f1b-4e88-b4b4-123456789abc
Example 2 - Using the session ID in a query:
SELECT id, name
FROM users
WHERE session_id = SESSION_ID();
Output:
id | name
---+------
1 | John
2 | Jane
5. Related Functions
- None. The SESSION_ID function is unique to H2 database and does not have any related functions in other databases.