Michael Monashev <[EMAIL PROTECTED]> wrote on 07/26/2005 04:41:28 PM:
> Hello, > > How to optimize != statement? > > SELECT * FROM table1 WHERE char_255_column != ''; > > How to fast select all rows, where CHAR(255) NOT NULL column not > empty? > > > > Sincerely, > Michael, You could try WHERE char_255_column > '' If the field has any text in it at all, the comparison will be true. Also, since this is a ranged comparison, you give the optimizer the opportunity to use an index if one is available. Shawn Green Database Administrator Unimin Corporation - Spruce Pine
