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

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==Syntax==
==Syntax==
<syntaxhighlight lang="lua">
<syntaxhighlight lang="lua">
mysql_errno ( MySQLConnection handler )
int mysql_errno ( MySQLConnection handler )
</syntaxhighlight>
</syntaxhighlight>
===Required arguments===
===Required arguments===

Revision as of 14:50, 13 January 2008

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
end

See also

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