DOC 231: Update function descriptions for session::x (#752)

doc-surrealdb_versioned_docs/version-latest/surrealql/functions/database/session.mdx

@@ -63,24 +63,24 @@ RETURN session::db();
 
 ## `session::id`
 
-The `session::db` function returns the currently selected database.
+The `session::id` function returns the current user's session ID.
 
 ```surql title="API DEFINITION"
-session::db() -> string
+session::id() -> string
 ```
 The following example shows this function, and its output, when used in a [`RETURN`](/docs/surrealdb/surrealql/statements/return) statement:
 
 ```surql
-RETURN session::db();
+RETURN session::id();
 
-"my_db"
+"I895rKuixHwCNIduyBIYH2M0Pga7oUmWnng5exEE4a7EB942GVElGrnRhE5scF5d"
 ```
 
 <br />
 
 ## `session::ip`
 
-The `session::ip` function returns the currently selected database.
+The `session::ip` function returns the current user's session IP address.
 
 ```surql title="API DEFINITION"
 session::ip() -> string
@@ -131,15 +131,15 @@ RETURN session::origin();
 
 ## `session::ac`
 
-The `session::ac` function returns the current user's access method.
+The `session::ac` function replaces the `session::sc` function and returns the current user's access method.
 
 ```surql title="API DEFINITION"
-session::sc() -> string
+session::ac() -> string
 ```
 The following example shows this function, and its output, when used in a [`RETURN`](/docs/surrealdb/surrealql/statements/return) statement:
 
 ```surql
-RETURN session::sc();
+RETURN session::ac();
 
 "user"
 ```