Sql_cmd_get_diagnostics Class Reference

#include <sql_get_diagnostics.h>

Inheritance diagram for Sql_cmd_get_diagnostics:

List of all members.

Public Member Functions
	Sql_cmd_get_diagnostics (Diagnostics_information *info)
virtual enum_sql_command	sql_command_code () const
	Return the command code for this statement.
virtual bool	execute (THD *thd)

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Detailed Description

Sql_cmd_get_diagnostics represents a GET DIAGNOSTICS statement.

The GET DIAGNOSTICS statement retrieves exception or completion condition information from a diagnostics area, usually pertaining to the last non-diagnostic SQL statement that was executed.

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Constructor & Destructor Documentation

Sql_cmd_get_diagnostics::Sql_cmd_get_diagnostics

(

Diagnostics_information *

info

)

[inline]

Constructor, used to represent a GET DIAGNOSTICS statement.

Parameters:

info	Diagnostics information to be obtained.

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Member Function Documentation

bool Sql_cmd_get_diagnostics::execute

(

THD *

thd

)

[virtual]

Execute this GET DIAGNOSTICS statement.

Parameters:

thd	The current thread.

Remarks:

Errors or warnings occurring during the execution of the GET DIAGNOSTICS statement should not affect the diagnostics area of a previous statement as the diagnostics information there would be wiped out. Thus, in order to preserve the contents of the diagnostics area from which information is being retrieved, the GET DIAGNOSTICS statement is executed under a separate diagnostics area. If any errors or warnings occur during the execution of the GET DIAGNOSTICS statement, these error or warnings (conditions) are appended to the list of the original diagnostics area. The only exception to this is fatal errors, which must always cause the statement to fail.

Return values:

false	on success.
true	on error

Implements Sql_cmd.

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The documentation for this class was generated from the following files:

• sql_get_diagnostics.h
• sql_get_diagnostics.cc