clueless newbie question re merge/union

iting the file to "t1.t1" and "t2.t2" has no effect, nor does changing permissions on total.MRG to 777. How can I get the union to work? Also, a question about merges: In the example above, if t1 and t2 are huge, will the resulting 'total' also be huge? Thanks in adva

MERGE tables and UNION joins

#x27;t find file: 'total.MRG' (errno: 2) The file exists. I have permissions to use it. Again, how can I do union joins across multiple databases? Thanks David Newman - Before posting, please check: http://www.