check if USER_COST is a updateable view or table? error goes there.
如果不是updateable我怎么办呢?
Sometimes you can not update a view beacause a view contains parts of several tables, unless other parts of these tables are nullable, you can not update only one part of them. Just try, good luck.
error goes there.
beacause a view contains parts of
several tables, unless other parts of
these tables are nullable, you can not
update only one part of them. Just try,
good luck.