Oracle BEQ Process

Recently, someone asked me this question about oracle BEQ processes. I used to see this introduction on a foreign recognition site. In sqlplus, enter conn/as sysdba, at this time, sqlplus starts a server process and uses the ps command to check that the protocol of this server process is beq rather than TCP. beq is the abbreviation of bequeath protocol, it is an SQL * net protocol that is somewhat similar to IPC and can only be used as a local connection, that is, the client and server program are on the same server. Beq can establish a dedicated connection without listener. Www.2cto.com shared memory and traffic signals are not created at this time. Oracle 4574 4573 0? 00:00:00 oracleslszy (DESCRIPTION = (LOCAL = YES) (ADDRESS = (PROTOCOL = beq) other remote connection integration displays the following: oracle 23520 1 0? At 00:00:00 oracleslszy (LOCAL = NO)