MySQL：如何检查用户（自身）是否具有创建临时表的权限

Question

我必须使用哪种查询来检查查询用户是否具有在数据库中创建临时表的权限？

Answer 1

I do not know if there is an elegant way of doing this with a query, but a "hackish" type of way to do it would be to use a mysql_query() and see if you get a result for that table or an error.

function checkCreateTempPermission($table) {
     $res = mysql_query("CREATE `$table` "); // modify this to be your temporary table code.
     if ($res === false) {
         if (strstr(mysql_error(), "command denied to user")) {
              return false;
         }else {
              // some other error happened not sure how you want to handle it so left blank.
         }
     }else {
         return true;
     }
}

I have not tested this at all , more or less a theory of how it could be done. Alternatively, you can write a script that runs this SQL:

Show grants for myuser;

And then loop through that testing if they have access for that table. This would take a bit more work, but at least would not error out. Hope that helps to get you started.