I am new to laravel 5.2,and i want to know more about laravel query builder,
actually i wants to know that how can i write this SQL Query in laravel
SQL -> select d.*, c.*, ct.*, a.*, b.*, m.* FROM tbl_deal d
INNER JOIN tbl_category c ON d.deal_category_id = c.category_id
INNER JOIN tbl_brand b ON d.deal_brand_id = b.brand_id
INNER JOIN tbl_member m ON m.member_id = d.deal_member_id
INNER JOIN tbl_city ct ON FIND_IN_SET(ct.city_id,d.deal_city)
LEFT JOIN tbl_outlet o ON FIND_IN_SET(o.outlet_id,d.deal_outlets)
LEFT JOIN tbl_area a ON a.area_id = o.outlet_area_id
Please, try the query like this:
$result = DB::table('table_name')
->leftJoin('tbl_country_city', 'table_name.quiz_id', '=', 'tbl_country_city.quiz_id')
->whereRaw('FIND_IN_SET('.$b.',field_name)')
->get();
Related
How to make with laravel a query with with like the example below
Thank you
with s as (select s.id from s)
select a.*
from a
left join s on s.id = a.s_id
...
WITH clauses are not supported by Eloquent. You can either pass in a raw query
$sql = <<<SQL
with s as (select s.id from s)
select a.*
from a
left join s on s.id = a.s_id
...
SQL;
$results = DB::select($sql);
Or use a package that adds this functionality like staudenmeir/laravel-cte
DB::query()
->withExpression('s', fn ($query) => $query->select('s.id')->from('s'))
->select('a.*')
->from('a')
->leftJoin('s', 's.id', 'a.s_id')
...
I wrote a query with Left outer join in oracle.But I execute the query I get ORA-00904: "b"."GROSS_DISCOUNT_AMOUNT": invalid identifier error.TableB contains net_discount_number and gross_discount_amount columns.
select
a.GSMNO GSMNO,
a.NET_AMOUNT net,
a.GROSS_AMOUNT gross,
sum(b.net_discount_amount) net_discount, sum(b.gross_discount_amount) gross_discount,
a.code code, a.seq_no
from tableA a
LEFT OUTER JOIN
(select id, code, seq_no, sum(gross_amount) gross_amount, sum(net_discount_amount), sum(gross_discount_amount) from tableB
group by id, code, seq_no)
b ON a.id = b.id and NVL(a.code,b.code) = NVL(b.code,-99) and
NVL(a._seq_no,-99) = NVL(b.seq_no,-99)
and a.gross_amount = b.gross_amount
where a.tvNo like '123% and gsmno ='1111111111'
group by
a.GSMNO,
a.NET_AMOUNT,
a.GROSS_AMOUNT,
a.code, a.seq_no
You haven't specified aliases for aggregate sums, it should be like this:
select
a.GSMNO GSMNO,
a.NET_AMOUNT net,
a.GROSS_AMOUNT gross,
sum(b.net_discount_amount) net_discount, sum(b.gross_discount_amount) gross_discount,
a.code code, a.seq_no
from tableA a
LEFT OUTER JOIN
(select id, code, seq_no,
sum(gross_amount) gross_amount,
sum(net_discount_amount) net_discount_amount,
sum(gross_discount_amount) gross_discount_amount
from tableB
group by id, code, seq_no)
b ON a.id = b.id and NVL(a.code,b.code) = NVL(b.code,-99) and
NVL(a._seq_no,-99) = NVL(b.seq_no,-99)
and a.gross_amount = b.gross_amount
where a.tvNo like '123% and gsmno ='1111111111'
group by
a.GSMNO,
a.NET_AMOUNT,
a.GROSS_AMOUNT,
a.code, a.seq_no
I am trying to optimize my LINQ query performance, and I've noticed a lot of LEFT OUTER JOINs being generated. I know that in SQL, there are some cases in which a single row subquery works better than the equivalent LEFT OUTER JOIN.
For example:
Query 1:
select f.FacilityName, p.Id PatientId, u.DOB, (select u2.NameComputed from adm.Staffs s inner join dbo.AspNetUsers u2 on s.UserId = u2.Id where s.Id = p.StaffId) AssignedTo
from ptn.Patients p
inner join dbo.AspNetUsers u on p.UserId = u.Id
inner join hco.Hcos f on p.HcoId = f.Id
where p.IsRemoved = 0
Query 2:
select f.FacilityName, p.Id PatientId, u.DOB, u2.NameComputed
from ptn.Patients p
inner join dbo.AspNetUsers u on p.UserId = u.Id
inner join hco.Hcos f on p.HcoId = f.Id
left outer join adm.Staffs s on p.StaffId = s.Id
left outer join dbo.AspNetUsers u2 on s.UserId = u2.Id
where p.IsRemoved = 0
Query 1 takes less than a second. Query 2 takes about 45 seconds. If I wanted to make sure LINQ is structured in such a way as to take advantage of this in some cases, how would I go about doing that? That is, is there a way to write a LINQ statement that produces a subquery instead of a LEFT OUTER JOIN?
Currently I have joined two tables using inner join , like following
SELECT A.*,B.*
FROM A,B
WHERE A.COLUMN_A = B.COLUMN_B
now I want to join Left outer join to above results , lets say I want to join Table C
So I did like following
SELECT A.*,B.*
FROM A,B
LEFT OUTER JOIN C ON B.COLUMN_X = C.COLUMN_X
WHERE A.COLUMN_A = B.COLUMN_B
this is executing without errors in SQL navigator, But in this result I cannot see any output.
anything wrong in this query , please advise
Change it to have proper join syntax like
SELECT A.*,B.*
FROM A
INNER JOIN B ON A.COLUMN_A = B.COLUMN_B
LEFT OUTER JOIN C ON B.COLUMN_X = C.COLUMN_X;
Better change all to outer join
SELECT A.*,B.*
FROM A
LEFT JOIN B ON A.COLUMN_A = B.COLUMN_B
LEFT OUTER JOIN C ON B.COLUMN_X = C.COLUMN_X;
Use this
SELECT A.*,B.*,C.*
FROM A
INNER JOIN B
ON A.COLUMN_A = B.COLUMN_B
LEFT OUTER JOIN C
ON B.COLUMN_X = C.COLUMN_X
If you absolutely have to use legacy syntax, then use this. But I won't recommend it.
SELECT A.*,B.*,C.*
FROM A,B,C
where A.COLUMN_A = B.COLUMN_B
AND
B.COLUMN_X = C.COLUMN_X (+)
In SQL, I would commonly inner join two or more tables to create a set and then left join to that set:
select *
from TableA
left outer join
TableB
inner join TableC on TableB.Id = TableC.TableBId
on TableA.Id = TableB.TableAId
What is the Linq equivalent of this? I'm using EF Code First.
Like this:
var result = from a in TableA
join b in TableB on a.Id equals b.TableAId into ab
from b in ab.DefaultIfEmpty()
join c in TableC on b.Id equals c.TableBId
select a;
I was able to achieve this by breaking it into two statements. First, make your inner join set, then left join to that set.
var bc = from b in TableB
join c in TableC on b.Id equals c.TableBId
select new { B = b, C = c };
var result = from a in TableA
from bcRow in bc.Where(row => a.Id equals row.B.TableAId).DefaultIfEmpty()
select new { A = a, B = bcRow.B, C = bcRow.C };