I have two tables like below
master and transaction table
How to view table like below...?
result
i have tried to use inner join or left join but cannot find like i need
Thank you
You can easily achieve it with the help of LEFT JOIN. Please try below queries:
For person id P01:
SELECT fruits.id_fruits, fruits.name, choice.person_id
FROM fruits LEFT JOIN choice
ON choice.id_fruits = fruits.id_fruits
AND choice.person_id = 'P01' ORDER BY fruits.id_fruits;
For person id P02:
SELECT fruits.id_fruits, fruits.name, choice.person_id
FROM fruits LEFT JOIN choice
ON choice.id_fruits = fruits.id_fruits
AND choice.person_id = 'P02' ORDER BY fruits.id_fruits;
For person id P03:
SELECT fruits.id_fruits, fruits.name, choice.person_id
FROM fruits LEFT JOIN choice
ON choice.id_fruits = fruits.id_fruits
AND choice.person_id = 'P03' ORDER BY fruits.id_fruits;
Try queries at https://www.db-fiddle.com/f/5RE6V6p9JLQ9VomCVXqKMa/1
SELECT id_fruit,name,person_id FROM FROM Fruits LEFT JOIN choice USING (id_fruits) WHERE person_id=... ODER BY id_fruits;
or for all
SELECT id_fruit,name,person_id FROM FROM Fruits LEFT JOIN choice USING (id_fruits) ODER BY id_fruits,person_id;
Related
I have this code:
SELECT A.UNITCODE, B.FORMATIONCODE, C.UPPERFORMATIONCODE, D.UPPERFORMATIONCODE
FROM UNIT AS A.UNITCODE
INNER JOIN FORMATION AS B.FORMATIONCODE
INNER JOIN UPPERFORMATION_UNIT AS C.UPPERFORMATION
INNER JOIN UPPERFORMATION AS D.UPPERFORMATIONCODE
WHERE UNITCODE='7000007'
Can you guys help me how to join 4 tables with specified column?
Assuiming the all 3 related tables have the same UNIT_ID for join with table UNIT
SELECT
A.UNITCODE
, B.FORMATIONCODE
, C.UPPERFORMATIONCODE
, D.UPPERFORMATIONCODE
FROM UNIT AS A
INNER JOIN FORMATION AS B ON B.FORMATIONCODE = A.UNIT_ID
INNER JOIN UPPERFORMATION_UNIT AS C. C.UPPERFORMATION = A.UNIT_ID
INNER JOIN UPPERFORMATION AS D D.UPPERFORMATIONCODE = A.UNIT_ID
WHERE UNITCODE='7000007'
It seems you are confusing table aliases and linking columns.
This is how to give a table an alias name in the query in order to enhance readability:
INNER JOIN formation AS f
where the AS is optional. Most often it is ommited.
This is how to join:
FROM unit AS u
INNER JOIN upperformation_unit AS ufu ON ufu.unitcode = u.unitcode
Well, I don't know the columns linking the tables of course, let alone their names. But I suppose the query would have to look like this more or less:
SELECT
u.unitcode,
f.formationcode,
uf.upperformationcode,
ufu.upperformationcode
FROM unit u
JOIN upperformation_unit ufu ON ufu.unitcode = u.unitcode
JOIN upperformation uf ON uf.upperformationcode = ufu.upperformationcode
JOIN formation f ON f.formationcode uf.formationcode
WHERE u.unitcode = 7000007;
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 some tables in my database, three main ones and one that holds the many-to-many relations.
1. Student (student_id, student_name)
2. Sport (sport_id, sport_name)
3. Departm (depart_id, depart_name)
4. Sch (sch_id, sch_name)
5. StudSport(relationid, studendid, sportid, departid, schid)
What I want to do is e.g. retrieve the name of the department based on the relations when I know the id. I can get the ids like this:
SELECT departid, schid from studsport
inner join Student on student_id = studentid
inner join Sport on sport_id = sportid
where student_id = 1 and sport_id=2
but I want to get the names of the department and the Sch from their corresponding tables, and I dont know how to do that.
As you don't select anything from Student or Sport, you can remove the corresponding inner joins.
SELECT d.depart_name, sch.sch_name FROM StudSport s
INNER JOIN Sch sch ON s.schid = sch.sch_id
INNER JOIN Departm d ON s.departid = d.depart_id
WHERE s.studendid = 1 AND s.sportid = 2
Something like this???
select sch.sch_nam, departm.depart_name,
-- what you have already --
Left outer Join StudSport on Student.student_id = Studsport.studentid and Sport.sport_id = StudSport.sportid
left outer Join Sch on StudSport.schid = Sch.sch_id
left outer join Departm on studsport.depart_id = studsport.departid
This is untested, a fiddle makes it much easier to give answers because of that.
EDIT - I misread your original query - before the downvotes start to rain - fixing it right now.
The way you should use LEFT OUTER and INNER joins is how the data is meant (again, a fiddle will normally be usefull) but it's just a couple of joins from what you have i guess:
select *
from studsport
join student on studsport.studentid = student.student_id
join sport on studsport.sportid = sport.sport_id
left outer Join Sch on StudSport.schid = Sch.sch_id
left outer join Departm on studsport.depart_id = studsport.departid
where student_id = 1 and sport_id=2
This is the table design of an application I need to build. Kindly ignore the Role Table in the image.
Is there any method by which I can select all the records in the table transfer log , but instead of showing "User No" and "Plant No" in the result , I need to show the corresponding Employee No/Username from the user table and corresponding Plant Id from Plant Table.
Try this;)
select distinct
log.LogNo, u.EmployeeNo/Username, p.PlantId, log.StartDate, log.EndDate, log.Active
from TransferLog log
left join UserTable u on u.UserNo = log.UserNo
left join PlantTable p on p.PlantNo = log.PlantNo
Use inner join
select a.*, b.username, c.pantname
from transfer_log as a
inner join User as b a.userno = b.userno
inner join plant as c a.plantno = c.plantno
A bit of a newbie question, probably an INNER JOIN with an "AS" statement, but I can't figure it out...
This is for a MYSQL based competition app. I want to select the "img_title" for both img_id1 and img_id2. I can't figure out how to do it and still see which title is assigned to the associated _id1 or _id2.
My tables:
competitions
comp_id
img_id1
img_id2
on_deck
img_id
img_title
Desired results:
comp_id | img_id1 | img_title1 |img_id2 | img_title2
You need a join for each image:
SELECT comp.comp_id, img1.img_id, img1.img_title, img2.img_id, img2.img_title
FROM competitions comp
INNER JOIN on_deck img1 ON img1.img_id = comp.img_id1
INNER JOIN on_deck img2 ON img2.img_id = comp.img_id2
LEFT JOIN if img_id1 or img_id2 can be NULL.
select comp_id, img_id1, b.img_title as img_title1,
img_id2, b2.img_title as img_title2
from competitions a
left outer join on_deck b on b.img_id = a.img_id1
left outer join on_deck b2 on b2.img_id = a.img_id2
switch let outer join to inner join if you want to exclude rows in competitions that do not have two matching img_ids
This query should give you the results you want. This also assumes that comp.img_id1 and comp.img_id2 are never NULL.
SELECT comp.comp_id
, comp.img_id1
, deck1.img_title AS img_title1
, comp.img_id2
, deck2.img_title AS img_title2
FROM competitions AS comp
JOIN on_deck deck1 ON comp.img_id1 = deck1.img_id
JOIN on_deck deck2 ON comp.img_id2 = deck2.img_id
If you have plan on having a NULL or empty string comp.img_id1 and/or comp.img_id2 fields, you'll need to do some left joins.