I am trying to just select data from table agency where that agency has entry in the commission table with a certain carrier. My SQL query is returning all entries and 3 times. What am I doing wrong.
$allquery = mysql_query("SELECT agency.ID, agency.agencyname, agency.contdate, agency.physcity FROM agency LEFT JOIN commission ON commission.repnum = agency.repid WHERE agency.repid = '$repid' AND commission.repnum = '$repid' AND commission.carrier = 'Carrier' ")or die(mysql_error())
You are not joining two tables unless you actually specify a join criteria involving columns from each table.
SELECT agency.ID, agency.agencyname, agency.contdate, agency.physcity
FROM agency LEFT JOIN commission ON commision.repid = agency.repid AND commission.carrier = 'Carrier'
Q: Why don't you use an inner join if you want to refer to elements in "commission"?
Q: Why are you doing a join at all??? I don't see how "commission" is linked to "agency". Does "commission" have a "repid" field, too?
Anyway, based on what you've shown, I'd recommend this:
SELECT ID, agencyname, contdate, physcity
FROM agency
where repid = '$repid'
Related
DB MODEL
I have Model Which is Connected in above Order Now I want to Select Style Names From Style Table.
Case 1 : I want the Style Names which are both intersecting Category and Gender
Case 2 : I want the Style Names which are intersecting Gender only regardless of category.
I am newbie to SQL is there any efficient way to Get the desired result using SQL JOINS . Any Help in such case will be appreciated or is there any modelling solutions to deal with such type of situations.
Here is how you would join your tables:
SELECT *
FROM `style`
INNER JOIN `StyleCategoryGender` ON `StyleCategoryGender`.`SID` = `style`.`Code`
INNER JOIN `StyleCategoryGender` ON `Category`.`Code` = `StyleCategoryGender`.`GID`
INNER JOIN `StyleCategoryGender` ON `Gender`.`Code` = `StyleCategoryGender`.`CID`
then you can add WHERE clauses as needed
SELECT *
FROM `style`
INNER JOIN `StyleCategoryGender` ON `StyleCategoryGender`.`SID` = `style`.`CODE`
INNER JOIN `StyleCategoryGender` ON `Category`.`Code` = `StyleCategoryGender`.`GID`
INNER JOIN `StyleCategoryGender` ON `Gender`.`Code` = `StyleCategoryGender`.`CID`
WHERE `Gender`.`Name` = 'Female'
I have a MySQL database of contacts with three tables.
person
personContact
personDetails
Each contact shares a primary key called 'ID'
The personContact table contains a value called 'personZip' which happens to be their mailing address zip code.
I'd like to write a SQL query that will give me all the contact data for each person in a specific array of zip codes.
I've written a simple statement to perform an inner join on 2 of the tables:
SELECT * FROM `personContact`
INNER JOIN person
ON personContact.ID=person.ID
I've written a statement to select only the zip codes I need:
SELECT * FROM 'personContact'
WHERE personContact.personZip=12564
OR personContact.personZip=12563
OR personContact.personZip=12522
OR personContact.personZip=12590
OR personContact.personZip=12594
OR personContact.personZip=12533
OR personContact.personZip=12570
OR personContact.personZip=12589
OR personContact.personZip=10509
I'm not sure how to perform two joins, to merge all columns from all three tables.
I'm not sure how to write the query to accommodate both the selection of zip codes and the JOINS.
MySQL errors are not helping me move in the right direction.
You were almost there. Use in which is equivalent to or.
SELECT pc.* --select columns from the other tables as needed.
FROM
`personContact` pc
INNER JOIN person p ON pc.ID = p.ID
INNER JOIN personDetails pd on pd.ID = p.ID
where pc.personzip in (12563, 12522, 10509) -- add more zips as needed
Join all three tables and return all columns while filtering by zip code:
SELECT person.*, personContact.*, personDetails.*
FROM person
INNER JOIN personContact ON personContact.ID = person.ID
INNER JOIN personDetails ON personDetails.ID = person.ID
WHERE personContact.personZip = 12564
OR personContact.personZip = 12563
OR personContact.personZip = 12522
OR personContact.personZip = 12590
OR personContact.personZip = 12594
OR personContact.personZip = 12533
OR personContact.personZip = 12570
OR personContact.personZip = 12589
OR personContact.personZip = 10509
EDIT: Multiple OR statements can be replaced using IN as others have suggested
WHERE personContact.personZip IN (12564, 12563, 12522, 12590 ...)
I have three tables that looks something like this:
Table joins
|ID|JOIN_NAME|
1 persons
2 companies
Table information
|ID|JOIN_ID|
1 1
2 2
Table information_extra_persons
|ID|INFORMATION_ID|NAME|
1 1 John
Table information_extra_companies
|ID|INFORMATION_ID|NAME|
1 2 IBM
How can i join together these tables in one SQL? I've tried something like:
SELECT * FROM `information`
INNER JOIN `information_extra_(SELECT `name` FROM `joins` WHERE `id` = `join_id`)`
ON `information_extra_(SELECT `name` FROM `joins` WHERE `id` = `join_id`)`.`information_id` = `information`.`id`
but I can't get it to work. Of course this isn't my actual table setup, but it's the same principle. Does anyone know how to get all the info in just one SQL?
That's actually four tables, not three. This isn't just a nitpick - it looks as though the substance of your question is "how can I use the name of the table as part of the join criteria?" (ie. how can the information_extra_ tables be treated as a single table?)
To which the answer is: you can't. (Outside of dynamic SQL.)
In this specific case, the following should return what I think you are looking for:
select j.join_name joined_entity,
case when j.join_name = 'persons' then p.name
else c.name
end joined_entity_name
from information i
inner join joins j on i.join_id = j.id
left join information_extra_persons p on i.id = p.information_id
left join information_extra_companies c on i.id = c.information_id
Alternatively, a less efficient (but more general) approach might be:
select j.join_name joined_entity,
v.name joined_entity_name
from information i
inner join joins j on i.join_id = j.id
inner join (select 'persons' entity, information_id, name from information_extra_persons
union all
select 'companies' entity, information_id, name from information_extra_companies) v
on i.id = v.information_id and j.join_name = v.entity
i am developing a PHP/MYSQL search module, where i have to search tables based on many different criteria, i have some 11 tables, and i have used multiple joins to create one single MySQL query and based on WHERE clause i intend to search for specific records, here is the MYSQL Query that i am using.
SELECT
prop.id,
prop.serial,
prop.title,
prop.rating,
prop.addDate,
prop.approve,
prop.status,
prop.user_id as userId,
user_det.email as email,
user_det.name as name,
prop.area_id as areaId,
area.name as areaName,
area.zipCode as zipCode,
area.city_id as cityId,
city.name as cityName,
city.state_id as stateId,
state.name as stateName,
state.country_id as countryId,
country.name as countryName,
prop.subCategory_id as subCategoryId,
subCat.name as subCategoryName,
subCat.category_id as categoryId,
cat.name as categoryName,
prop.transaction_id as transactionId,
trans.name as transactionName,
price.area as landArea,
price.price as priceSqFt,
price.total_price as totalPrice,
features.bedroom,
features.bathroom,
features.balcony,
features.furnished,
features.floorNum,
features.totalFloor
FROM properties prop
LEFT JOIN user_details user_det ON (prop.user_id = user_det.user_id)
LEFT JOIN areas area ON (prop.area_id = area.id)
LEFT JOIN cities city ON (area.city_id = city.id)
LEFT JOIN states state ON (city.state_id = state.id)
LEFT JOIN countries country ON (state.country_id = country.id)
LEFT JOIN subCategories subCat ON (prop.subCategory_id = subCat.id)
LEFT JOIN categories cat ON (subCat.category_id = cat.id)
LEFT JOIN transactions trans ON (prop.transaction_id = trans.id)
LEFT JOIN prop_prices price ON (price.property_id = prop.id)
LEFT JOIN prop_features features ON (features.property_id = prop.id)
although all works well here, i have a situation where i have a table called prop_amenities below are the content of this table.
as the table above have multiple property_id if i query it using JOINS then mostly it will return duplicate records or single record omitting others depending on the type of JOIN i use. so instead i would like to deal it this way.
use the table prop_amenities to only deal with conditions not to return the result.
for example i am searching for a property with amenity id 1,5,9,17 and 24, then it should check if all the records exist in the prop_amenities table, i.e 1,5,9,17 and 24 in this case. and return the appropriate records with all above selected columns.
i am clueless on dealing this situation using MySQL. how do i go on this?
thank you..
You said "check if all the records exist in the prop_amenities table" and that's the key word here.
SELECT ...
FROM properties AS prop
LEFT JOIN ...
WHERE EXISTS (SELECT 1 FROM prop_amenities AS pa WHERE pa.property_id = prop.property_id AND pa.amenity_id = 7);
I have entires, equipments, brands, times and seasons.
entries:
id
time
equipment_1
equipment_2
equipments:
id
id_brand
brands:
id
name
times:
id
id_season
seasons:
id
name
My actual SQL query is:
SELECT entries.*, times.id_season AS id_season
FROM entries, seasons
WHERE entries.time = times.id
But in the final query I need the next information that I don't know how to obtain it:
The name for each entries.equipment_ as equipment_1_name and equipment_2_name which is set in brands.name.
The name of the season as season_name.
Thank you in advance!
Assuming you have normalized data. This avoid costly cartesian joins. I never use cartesian joins myself, although there are some cases where they are useful. Not here, though.
SELECT
entries.*,
times.id_seasons AS id_season,
b1.name AS equipment_1_name,
b2.name AS equipment_2_name,
seasons.name AS season_name
FROM entries
LEFT JOIN equipments AS equipments_1
ON equipments_1.id = entries.equipment_1
LEFT JOIN brands AS brands_1
ON brands_1.id = equipments_1.id_brand
LEFT JOIN equipments AS equipments_2
ON equipments_2.id = entries.equipment_2
LEFT JOIN brands AS brands_2
ON brands_2.id = equipments_2.id_brand
LEFT JOIN times
ON times.id = entries.time
LEFT JOIN seasons
ON seasons.id = times.id_season;