DISCONNECT — terminate a database connection
DISCONNECT connection_name
DISCONNECT [ CURRENT ]
DISCONNECT ALL
DISCONNECT closes a connection (or all connections) to the database.
connection_nameA database connection name established by the CONNECT command.
CURRENTClose the “current” connection, which is either the most recently opened connection, or the connection set by the SET CONNECTION command. This is also the default if no argument is given to the DISCONNECT command.
ALLClose all open connections.
int
main(void)
{
EXEC SQL CONNECT TO testdb AS con1 USER testuser;
EXEC SQL CONNECT TO testdb AS con2 USER testuser;
EXEC SQL CONNECT TO testdb AS con3 USER testuser;
EXEC SQL DISCONNECT CURRENT; /* close con3 */
EXEC SQL DISCONNECT ALL; /* close con2 and con1 */
return 0;
}
DISCONNECT is specified in the SQL standard.
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