Modules/MTA-MySQL/mysql errno: Difference between revisions

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__NOTOC__
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{{ModuleFunction|MTA-MySQL}}
Returns the last error number of a MySQL connection.
Returns the last error number of a MySQL connection.


Revision as of 17:58, 14 January 2008


Package-x-generic.png This function is provided by the external module MTA-MySQL. You must install this module to use this function.

Returns the last error number of a MySQL connection.

Syntax

int mysql_errno ( MySQLConnection handler )

Required arguments

  • handler: A valid MySQL link

Returns

The last error number, zero if nothing failed. Visit http://dev.mysql.com/doc/refman/5.0/en/error-handling.html for a list of error codes.

Example

Example 1: This example sends a query to the server and if it fails, shows the reason. 

result = mysql_query(handler, "SELECT FROM table") -- We have a syntax error in the query
if (not result) then -- The query failed
  outputDebugString("mysql_query failed: (" .. mysql_errno(handler) .. ") " .. mysql_error(handler)) -- Show the reason
else
  mysql_free_result(result) -- Free the last query result data
end

See also

Retrieved from "https://wiki.multitheftauto.com/wiki/Modules/MTA-MySQL/mysql_errno?oldid=14968"