I have a nested mysql_query.
$resultSub = mysql_query("SELECT *
FROM ensembles
WHERE en_name = $name
LEFT JOIN ensemble_names on ensembles.en_name = ensemble_names.en_nm_ID
LEFT JOIN students on ensembles.en_stu = students.s_ID
LEFT JOIN part_names on ensembles.en_part = part_names.p_nm_ID
ORDER BY $sort $orderBy");
The query works fine without the WHERE clause, which I thought may be filtering out rows for the LEFT JOIN command, but that's not the case.
The WHERE clause should be placed after the LEFT JOINs:
$resultSub = mysql_query("SELECT *
FROM ensembles
LEFT JOIN ensemble_names on ensembles.en_name = ensemble_names.en_nm_ID
LEFT JOIN students on ensembles.en_stu = students.s_ID
LEFT JOIN part_names on ensembles.en_part = part_names.p_nm_ID
WHERE en_name = $name
ORDER BY $sort $orderBy");
Well, you put the WHERE clause in the wrong place.
Read the documentation.
Related
I always use left join in drop select and I dont know yet how to use it on update.
I've search a lot but I see only two tables. Im confuse when applying it in three or more table update.
Please check my query:
public function updateUser($edit_id,$username)
{
$stmt=$this->conn->prepare("UPDATE tbl_login LEFT JOIN activity_logs ON tbl_login.username = activity_logs.activity_logs,
LEFT JOIN tbl_files ON tbl_login.username = tbl_files.file_uploader,
LEFT JOIN tbl_manfiles ON tbl_login.username = tbl_manfiles.file_uploader,
LEFT JOIN tbl_section ON tbl_login.username = tbl_section.creator,
LEFT JOIN tbl_adfiles ON tbl_login.username = tbl_adfiles.adfile_uploader
SET tbl_login.username=:username
WHERE id=:id");
$stmt->execute(array(":id"=>$edit_id, ":username"=>$username));
return $stmt;
}
$query = "UPDATE profiledata t1 JOIN profileprivacy t2 ON (t1.uid = t2.uid)
SET t1.aboutyou = '$aboutyou', t1.quotes = '$quotes',
t2.aboutyouPrivacy = '$aboutyouPrivacy', t2.quotesPrivacy = '$quotesPrivacy'
WHERE t1.uid = '$sess_uid'";
update two tables at once
I can't get a left join to work in my prepared statement.
"SELECT DISTINCT(a.auto_id), m.merk, a.model, a.uitvoering, a.standaardtekst, a.prijs, a.prijs2, a.prijs3, a.handelsprijs, a.aanmaak, s.soort, z.prijs_id
/*,GROUP_CONCAT(DISTINCT(apc.NL) ORDER BY apc.NL ASC)*/
FROM autocom_new.auto_new a
INNER JOIN autocom_new.tbl_merken m
ON a.merk = m.merk_id
INNER JOIN autocom_new.tbl_soort s
ON a.soort = s.soort_id
INNER JOIN autocom_new.auto_zoekmachines z
ON a.auto_id = z.auto_id
/*
LEFT JOIN autocom_new.auto_accessoire acc
ON a.auto_id = acc.auto_id
LEFT JOIN autocom_new.tbl_autopricecode_new apc
ON acc.code_id = apc.code_id
*/
WHERE a.ac LIKE ? AND a.flag = ?"
The commented parts are the parts that aren't working.
I have no idea what I'm doing wrong.
EDIT
First of all I forgot that both tables have a column ac, so I've changed the where statement a bit. The left joins are working now, but the part in the select is still not working
So the problem was that I forgot a GROUP BY.
"SELECT DISTINCT(a.auto_id), m.merk, a.model, a.uitvoering, a.standaardtekst, a.prijs, a.prijs2, a.prijs3, a.handelsprijs, a.aanmaak, s.soort, z.prijs_id,
GROUP_CONCAT(DISTINCT(apc.NL) ORDER BY apc.NL ASC)
FROM autocom_new.auto_new a
INNER JOIN autocom_new.tbl_merken m
ON a.merk = m.merk_id
INNER JOIN autocom_new.tbl_soort s
ON a.soort = s.soort_id
INNER JOIN autocom_new.auto_zoekmachines z
ON a.auto_id = z.auto_id
LEFT JOIN autocom_new.auto_accessoire acc
ON a.auto_id = acc.auto_id
LEFT JOIN autocom_new.tbl_autopricecode_new apc
ON acc.code_id = apc.code_id
WHERE a.ac LIKE ? AND a.flag = ?
GROUP BY a.auto_id"
I'm having difficulties using the LEFT OUTER JOIN in multiple tables.
My tables are: countries, customer_info, package_types, service_types and shipping_info
This is my code so far:
$sql = "SELECT shipping_info.shipping_id, shipping_info.weight, shipping_info.width, shipping_info.height, shipping_info.length, shipping_info.cost, shipping_info.status,
service_types.service, package_types.package_type, countries1.country AS fromCountry, countries2.country AS toCountry, countries3.country AS resiCountry, customer_info.name, customer_info.address
, customer_info.city, customer_info.postcode, customer_info.zipcode, customer_info.phone, customer_info.email, customer_info.country
FROM shipping_info
LEFT OUTER JOIN service_types ON shipping_info.service_type = service_types.serviceType_id
LEFT OUTER JOIN package_types ON shipping_info.package_type = package_types.packageType_id
LEFT OUTER JOIN customer_info ON shipping_info.customer_id = customer_info.customer_id
LEFT OUTER JOIN countries AS countries1 ON shipping_info.from_loc = countries1.country_id
LEFT OUTER JOIN countries AS countries2 ON shipping_info.to_loc= countries2.country_id
LEFT OUTER JOIN countries AS countries3 ON shipping_info.to_id = countries3.country_id";
$statement = $con_db->query($sql);
$result = $statement->fetchAll();
I'm getting a fatal error in my final line and I believe that's because $result is null. But I'm unable to figure out the error.
Appreciate any help.
It may be your query has following manual error:
tablename or fieldname mismatch
I have this large query, and I just need to filter out any results where the tbl_dealinterest.Active = 'n'. There sometimes isn't an entry in that table for the product, and sometimes it might there might be and entry and set to y.
Here is the large ugly query:
SELECT tbl_product.id, tbl_productspecification.id AS specificationId,
tbl_product.ProductId, tbl_seller.CompanyName, tbl_product.ProductName, tbl_product.Description, mst_Categories.id AS 'Category',
tbl_productspecification.RetailPrice, tbl_productspecification.SalePrice,
tbl_product.image, tbl_productspecification.Discount, tbl_product.EndTime, tbl_product.Seller_Id, tbl_dealinterest.Active AS thumbsActive
FROM tbl_product
LEFT OUTER JOIN tbl_seller ON tbl_seller.SelId = tbl_product.Seller_Id
LEFT OUTER JOIN mst_Categories ON (mst_Categories.id = tbl_product.Category OR mst_Categories.id = tbl_product.SubCategory)
LEFT OUTER JOIN tbl_productspecification ON tbl_productspecification.ProductId = tbl_product.ProductId
LEFT OUTER JOIN mst_image ON mst_image.Product = tbl_product.ProductId
LEFT OUTER JOIN tbl_dealinterest ON tbl_dealinterest.ProductId = tbl_product.ProductId AND tbl_dealinterest.BuyerId = '$token'
WHERE tbl_product.Active='y'
AND tbl_product.StartTime <= '".date("Y-m-d H:i:s")."'
AND tbl_product.EndTime > '".date("Y-m-d")." 06:00:00'
".$subquery."
GROUP BY tbl_productspecification.ProductId";
Thanks for any suggestions.
SELECT ...
WHERE tbl_product.Active='y'
AND (tbl_dealinterest.Active <> 'n' OR tbl_dealinterest.Active IS NULL)
...
LEFT OUTER JOIN tbl_dealinterest ON (tbl_dealinterest.ProductId = tbl_product.ProductId
AND tbl_dealinterest.BuyerId = '$token'
AND tbl_dealinterest.Active<>'n')
I'm stuck on the inner join scenario for my tables. Can you please help me? What I am doing wrong here?
Here is the scenario that I'm trying to do:
I have billing and shipping country/states columns which I am trying to populate with inner join, but somehow it is not working. Thanks a lot for your help:
$sql = $this->connection->query("SELECT * FROM ".TBL_USERS."
INNER JOIN ".TBL_USER_LEVEL." ON ".TBL_USERS.".userlevel = ".TBL_USER_LEVEL.".user_level_id
INNER JOIN ".TBL_COUNTRIES." ON ".TBL_USERS.".country OR ".TBL_USERS.".bcountry = ".TBL_COUNTRIES.".country_id
INNER JOIN ".TBL_STATES." ON ".TBL_USERS.".states OR ".TBL_USERS.".bstates = ".TBL_STATES.".states_id
WHERE ".TBL_USERS.".username = '$username'");
i changed the query to; and the error im gettin is
PHP Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[42000]: Syntax error or access violation: 1066 Not unique table/alias: 'countries'' in
$sql = $this->connection->query("SELECT * FROM ".TBL_USERS."
INNER JOIN ".TBL_USER_LEVEL." ON ".TBL_USERS.".userlevel = ".TBL_USER_LEVEL.".user_level_id
INNER JOIN ".TBL_COUNTRIES." ON ".TBL_USERS.".country = ".TBL_COUNTRIES.".country_id
INNER JOIN ".TBL_COUNTRIES." ON ".TBL_USERS.".bcountry = ".TBL_COUNTRIES.".country_id
INNER JOIN ".TBL_STATES." ON ".TBL_USERS.".states = ".TBL_STATES.".states_id
INNER JOIN ".TBL_STATES." ON ".TBL_USERS.".bstates = ".TBL_STATES.".states_id
WHERE ".TBL_USERS.".username = '$username'");
OK here is correct syntax thanks a lot to #Tiberiu-Ionuț Stan
$sql = $this->connection->query("SELECT * FROM ".TBL_USERS."
LEFT JOIN ".TBL_COUNTRIES." ON ".TBL_USERS.".country = ".TBL_COUNTRIES.".country_id
LEFT JOIN ".TBL_COUNTRIES." AS ".TBL_COUNTRIES."_b ON ".TBL_USERS.".bcountry=".TBL_COUNTRIES."_b.country_id
INNER JOIN ".TBL_USER_LEVEL." ON ".TBL_USERS.".userlevel = ".TBL_USER_LEVEL.".user_level_id
LEFT JOIN ".TBL_STATES." ON ".TBL_USERS.".states = ".TBL_STATES.".states_id
LEFT JOIN ".TBL_STATES." AS ".TBL_STATES."_b ON ".TBL_USERS.".bstates=".TBL_STATES."_b.states_id
WHERE ".TBL_USERS.".username = '$username'");
You can use OR and AND inside join statements.
I do it all the time.
Here's one that works:
LEFT JOIN `currencies` ON (
`currency_foreign`=`invoice_entry_amount_currency`
AND
`currency_reference`='".$strTransformToCurrency."'
AND
`currency_date`=FLOOR(`invoice_paid_timestamp`/86400)*86400
)
Problem is here:
INNER JOIN ".TBL_COUNTRIES." ON ".TBL_USERS.".country = ".TBL_COUNTRIES.".country_id
INNER JOIN ".TBL_COUNTRIES." ON ".TBL_USERS.".bcountry = ".TBL_COUNTRIES.".country_id
MySQL can't decide on which relation to join the countries table (because MySQL thinks .country and .countryb can be different - so after join it doesn't know which columns will be returned or used for conditions and ordering).
Try it like this:
INNER JOIN ".TBL_COUNTRIES." ON ".TBL_USERS.".country = ".TBL_COUNTRIES.".country_id
INNER JOIN ".TBL_COUNTRIES." AS ".TBL_COUNTRIES."_b ON ".TBL_USERS.".bcountry=".TBL_COUNTRIES."_b.country_id
In case you have really big tables, do an EXPLAIN with the full final query including conditions and ordering to find out if MySQL is doing a table copy because of "TBL_USERS AS TBL_USERS_B".
You cannot use constructs like JOIN table ON field OR another_field = expression, unless referenced field is of boolean type.
You should use constructs that will return boolean result, in your case something like this:
$sql = $this->connection->query("SELECT * FROM $TBL_USERS
JOIN $TBL_USER_LEVEL ON $TBL_USERS.userlevel = $TBL_USER_LEVEL.user_level_id
JOIN $TBL_COUNTRIES ON $TBL_USERS.country = $TBL_COUNTRIES.country_id
OR $TBL_USERS.bcountry = $TBL_COUNTRIES.country_id
JOIN $TBL_STATES ON $TBL_USERS.states = $TBL_STATES.states_id
OR $TBL_USERS.bstates = $TBL_STATES.states_id
WHERE $TBL_USERS.username = '$username'");
I have also used the variable directly, otherwise lots of string concatenations looks messy.
And your query as is now is open for SQLi.