ODBC Server Reference Manual

Architecture Overview
HP NonStop ODBC Server Reference Manual—429151-002
2-14
Major Components
Other processes used by NonStop SQL/MP, such as the SQL Compiler, DP2, and
TS/MP, are also involved.
A brief description of each component is presented here; expanded descriptions
appear in this section from page 2-27 onwards.
•
NonStop ODBC server
This process performs the SQL gateway actions for a client. There is a separate
NonStop ODBC server process for each client connection. The process receives
SQL requests from a client, translates them to NonStop SQL/MP (or to a
ServerClass_Send for a stored procedure execution), executes the translated
statements, collects the results (or errors), translates data to the client’s types, and
replies to the client.
•
SQL Communication Subsystem (SCS)
Figure 2-15. Major Components of the NonStop ODBC Server on a NonStop
Server
NOSUTIL
NonStop ODBC
Mapping and
Configuration
Tables
SPELIB
Pathway
Server
Class
NonStop
SQL/MP
Execution
NonStop ODBC
Server
SP Execution
SPELIB
SCS
Communication
Processes
Name Mapping
and
Configuration Data
NOSCOM
VST019.vsd