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SQL programmingYou can use the HCL OneDB™ implementation of the SQL language to develop applications for HCL OneDB™ database servers.
Guide to SQL: SyntaxThe HCL OneDB™ Guide to SQL: Syntax describes the syntax of the statements, data types, expressions, operators, and built-in functions of the HCL OneDB™ dialect of the SQL language.
SQL statementsThis chapter describes the syntax and semantics of SQL statements that are recognized by HCL OneDB™.
GET DIAGNOSTICS statementUse the GET DIAGNOSTICS statement to return diagnostic information about the most recently executed SQL statement.
EXCEPTION Clause
Using the SERVER_NAME Keyword

Using the SERVER_NAME Keyword

The SERVER_NAME keyword returns the name of the database server associated with a CONNECT or DATABASE statement. GET DIAGNOSTICS updates the SERVER_NAME field when any of the following events occur:

A CONNECT statement successfully executes.
A SET CONNECTION statement successfully executes.
A DISCONNECT statement successfully terminates the current connection.
A DISCONNECT ALL statement fails.

The SERVER_NAME field is not updated, however, after these events:

A CONNECT statement fails.
A DISCONNECT statement fails (but this does not include the DISCONNECT ALL statement).
A SET CONNECTION statement fails.

The SERVER_NAME field retains the value set in the previous SQL statement. If any of the preceding conditions occur on the first SQL statement that executes, the SERVER_NAME field is blank.