Selecting * from multiple tables
I'm running into a snag... here's an example of the query I'm making from within Perl: SELECT * FROM table1,table2 I know it's not a nice way to do it, but I'm making an SQL webpage frontend which I'd like to support it just in case. I'm using fetchrow-hashref to pull it out and display it. The problem I'm running into is when table1 and table2 have similar column names. One of them would be overwritten in the hash reference to be replaced by the second one it encounters. So my question is this. Is there any way to force MySQL to ouput the table name with the column name instead of just the column name, ie. table1.column2. Thanks in advance, Dave Mittner - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Selecting * from multiple tables
At 10:43 AM -0700 8/27/01, Dave Mittner wrote: I'm running into a snag... here's an example of the query I'm making from within Perl: SELECT * FROM table1,table2 I know it's not a nice way to do it, but I'm making an SQL webpage frontend which I'd like to support it just in case. I'm using fetchrow-hashref to pull it out and display it. The problem I'm running into is when table1 and table2 have similar column names. One of them would be overwritten in the hash reference to be replaced by the second one it encounters. So my question is this. Is there any way to force MySQL to ouput the table name with the column name instead of just the column name, ie. table1.column2. No. Name the columns explicitly and give them aliases. Thanks in advance, Dave Mittner -- Paul DuBois, [EMAIL PROTECTED] - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Selecting * from multiple tables
On Monday 27 August 2001 19:43, Dave Mittner wrote: I'm running into a snag... here's an example of the query I'm making from within Perl: SELECT * FROM table1,table2 I know it's not a nice way to do it, but I'm making an SQL webpage frontend which I'd like to support it just in case. I'm using fetchrow-hashref to pull it out and display it. The problem I'm running into is when table1 and table2 have similar column names. One of them would be overwritten in the hash reference to be replaced by the second one it encounters. So my question is this. Is there any way to force MySQL to ouput the table name with the column name instead of just the column name, ie. table1.column2. Not that I know of. What you could do is create aliases using AS, e.g. SELECT *, table2.column2 AS table2_column2 FROM table1,table2 but then you would need to know which columns to alias. Or how about using fetchrow_arrayref()? That would remove the duplicate hash key problem, although you would have to extrapolate the column names yourself. Hope your system has lots of memory to cope with that select statement on tables of any significant size ;-) HTH Ian Barwick -- Ian Barwick - Developer - [EMAIL PROTECTED] akademie.de asp GmbH - http://www.akademie.de To query tables in a MySQL database is more fun than eating spam - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
