I have two tables that I am trying to use to create a report by using
a join. When the query is executed, the SUM on the second table is 4
times the expected amount. As a stand alone query on the second table,
this works:
SELECT `Last_Name`, `First_Name`, `Employee_SSN`,
SUM(`id_es_inv` .`Total_Amount` ) AS `Expense Amount`
FROM `id_es_inv`
GROUP BY `Last_Name`
But when I attempt the same operation using a JOIN on the first table,
the SUM then comes out as 4x the expected value:
SELECT
SUM(`id_es_inv` .`Total_Amount` ) AS `Expense Amount`,
CONCAT_WS(', ',id_ts_inv.`La st_Name`,id_ts_ inv.`First_Name `) AS
`Name`, SUM(id_ts_inv.T otal_Amount) As `Total`,
SUM(id_ts_inv.` Hours_Reg`) AS `REG Hrs`, SUM(id_ts_inv.` Hours_OT`) AS
`OT Hrs`, SUM(id_ts_inv.` Hours_DT`) AS `DT Hrs`,
id_ts_inv.`Rate _Regular_Bill` AS `Bill Rate`,
SUM(id_ts_inv.` Hours_Reg`* id_ts_inv.`Rate _Regular_Bill`) AS `Amount
ST`,
SUM(id_ts_inv.` Hours_OT`* id_ts_inv.`Rate _Regular_Bill`) AS `Amount
OT`,
SUM(id_ts_inv.` Hours_DT`* id_ts_inv.`Rate _Regular_Bill`) AS `Amount
DT`
FROM `id_ts_inv`
`id_ts_inv` LEFT JOIN `id_es_inv` USING (`Employee_SSN` )
GROUP By id_ts_inv.`Last _Name`, `id_es_inv`.`La st_Name`
The tables are not identicle in structure, i.e `id_es_inv` contains a
smaller number of columns and rows than `id_ts_inv`, so I can't use a
UNION with 2 selects. I've also tried changing the JOIN columns, but
that just made things worse.
I've poured over the Internet, gone through everything relevant in
Paul DuBois's MySQL CookBook, asked friends who have more MySQL
experience that I do, but no luck yet.
Can anybody help with a useful suggestion as to why this behavior is
happening?
TIA
2  2049 
"Richard J Lacroix" <ri**********@c omcast.net> wrote in message
news:20******** *************** ***@posting.goo gle.com...
[snip]
What is the purpose of repeating `id_ts_inv` in the FROM? FROM `id_ts_inv`
`id_ts_inv` LEFT JOIN `id_es_inv` USING (`Employee_SSN` )
--
Eric Lafontaine
That's just a cut-and-paste error.
Richard
"ventre-à-pattes" <ne**@ventre-a-pattes.com> wrote in message news:<be******* **@imsp212.netv igator.com>... "Richard J Lacroix" <ri**********@c omcast.net> wrote in message
news:20******** *************** ***@posting.goo gle.com...
[snip]
What is the purpose of repeating `id_ts_inv` in the FROM?
FROM `id_ts_inv`
`id_ts_inv` LEFT JOIN `id_es_inv` USING (`Employee_SSN` ) This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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