[PHP-DB] Re: Lotus Notes DB to MySQL?
Chris Payne wrote: I have a client who uses Lotus Notes for her database, now she wants it converted to MySQL, is that possible? What format is notes DB in? Basically I will write a new front-end and back-end for her so she doesn't need notes anymore (Nasty, nasty software) but I need to import her old data first. If memory serves me correctly, you can export from Notes as a CSV text file, and then import that. It's been some time since I had to do it, but I am sure that was the path I used to get the contacts data into an Interbase database. -- Lester Caine - L.S.Caine Electronic Services -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP-DB] [MySQL] Sometimes I get empty rows from SELECT query...
Hello! I'm writing a PHP script which accesses a MySQL database. As it turns out, sometimes I get an empty row from a SELECT query which should normally return one or more rows. The same query executed a while later, on unchanged data, returns the rows perfectly fine. No errors are returned, just mysql_fetch_array simply returns nothing. What can be a caouse of this? Perhaps I forgot to put mysql_free_result somewhere, and it causes such effects? Anyone had this problem before? Best regards, Michau. -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP-DB] Bug with assignment operator ( := )
SQL Statement: select *,@xtotal := StkhistMonthqty06 + StkhistMonthqty07 + StkhistMonthqty08 as total from StkMast as sm inner join StkHist as sh using (STkCode) where (StkAuthor like 'keller%') and (sh.StkhistYear='2004') and (@xtotal0); Notice the use of @xtotal. I have saved some output from an instance where I ran this query and it worked as expected. Subsequently it has stopped finding any results. (the table has definitly NOT changed). If I take out the and (@xtotal0) clause, it finds records (and, whatsmore, I can see that xtotal is indeed greater than zero. Does anyone know of any erratic behaviour when using the assignment operator? Or am I doing something wrong? (Note that this is actually the first time I have ever used the assignment operator, so I'm pretty green really) . . Ross Honniball. JCU Bookshop Cairns, Qld, Australia. . -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP-DB] Bug with assignment operator ( := )
Ross, That's correct. From the MyQL manual: Begin quote .. In a SELECT statement, each expression is evaluated only when sent to the client. This means that in a HAVING, GROUP BY, or ORDER BY clause, you cannot refer to an expression that involves variables that are set in the SELECT list. For example, the following statement will not work as expected: mysql SELECT (@aa:=id) AS a, (@aa+3) AS b FROM tbl_name HAVING b=5; The reference to b in the HAVING clause refers to an alias for an expression in the SELECT list that uses @aa. This does not work as expected: @aa will not contain the value of the current row, but the value of id from the previous selected row. The general rule is to never assign and use the same variable in the same statement. ... end quote There's more at http://dev.mysql.com/doc/mysql/en/Variables.html So why not: select *, (StkhistMonthqty06 + StkhistMonthqty07 + StkhistMonthqty08) as total . . rest of statement ... . and total 0 Regards - Miles Thompson At 10:10 PM 8/28/2004, Ross Honniball wrote: SQL Statement: select *,@xtotal := StkhistMonthqty06 + StkhistMonthqty07 + StkhistMonthqty08 as total from StkMast as sm inner join StkHist as sh using (STkCode) where (StkAuthor like 'keller%') and (sh.StkhistYear='2004') and (@xtotal0); Notice the use of @xtotal. I have saved some output from an instance where I ran this query and it worked as expected. Subsequently it has stopped finding any results. (the table has definitly NOT changed). If I take out the and (@xtotal0) clause, it finds records (and, whatsmore, I can see that xtotal is indeed greater than zero. Does anyone know of any erratic behaviour when using the assignment operator? Or am I doing something wrong? (Note that this is actually the first time I have ever used the assignment operator, so I'm pretty green really) . . Ross Honniball. JCU Bookshop Cairns, Qld, Australia. . -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP-DB] Bug with assignment operator ( := )
Myles : Thanks for this info. Clears up that mystery for me. However, when I try: So why not: select *, (StkhistMonthqty06 + StkhistMonthqty07 + StkhistMonthqty08) as total . . rest of statement ... . and total 0 I get a [nativecode=1054 ** Unknown column 'total' in 'where clause'] I had actually tried this before I started playing with assignment statements. Any clues? At 11:35 AM 29/08/2004, you wrote: Ross, That's correct. From the MyQL manual: Begin quote .. In a SELECT statement, each expression is evaluated only when sent to the client. This means that in a HAVING, GROUP BY, or ORDER BY clause, you cannot refer to an expression that involves variables that are set in the SELECT list. For example, the following statement will not work as expected: mysql SELECT (@aa:=id) AS a, (@aa+3) AS b FROM tbl_name HAVING b=5; The reference to b in the HAVING clause refers to an alias for an expression in the SELECT list that uses @aa. This does not work as expected: @aa will not contain the value of the current row, but the value of id from the previous selected row. The general rule is to never assign and use the same variable in the same statement. ... end quote There's more at http://dev.mysql.com/doc/mysql/en/Variables.html So why not: select *, (StkhistMonthqty06 + StkhistMonthqty07 + StkhistMonthqty08) as total . . rest of statement ... . and total 0 Regards - Miles Thompson At 10:10 PM 8/28/2004, Ross Honniball wrote: SQL Statement: select *,@xtotal := StkhistMonthqty06 + StkhistMonthqty07 + StkhistMonthqty08 as total from StkMast as sm inner join StkHist as sh using (STkCode) where (StkAuthor like 'keller%') and (sh.StkhistYear='2004') and (@xtotal0); Notice the use of @xtotal. I have saved some output from an instance where I ran this query and it worked as expected. Subsequently it has stopped finding any results. (the table has definitly NOT changed). If I take out the and (@xtotal0) clause, it finds records (and, whatsmore, I can see that xtotal is indeed greater than zero. Does anyone know of any erratic behaviour when using the assignment operator? Or am I doing something wrong? (Note that this is actually the first time I have ever used the assignment operator, so I'm pretty green really) . . Ross Honniball. JCU Bookshop Cairns, Qld, Australia. . -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php . . Ross Honniball. JCU Bookshop Cairns, Qld, Australia. . -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP-DB] Dear php experts
I am new in PHP. I've just started programming with php. I am going to build a newsletter mailing of my own community. I use a table where members' name, email and other information is stored. I would like to send email to all member listed on member table. Could anyone give me functional code for it? Thanks, Bishnu
