i am using kartik gridview and i want to display the result page using joinwith multiple tables. below i used select statement to fetch the output same i need to display in index page(highlighted in bold) insted of select query
$query = EmpDetails::find()->joinWith(['employeeStatutoryDetail'])
->where(['NOT IN', 'emp_statutorydetails.gpa_no', ['']])
->orWhere(['IS NOT', 'emp_statutorydetails.gpa_no', NULL]);
And my query:
SELECT A.empcode,A.empname,
B.designation,
C.division_name,
D.gpa_no,D.gpa_sum_insured,
E.fellow_share
FROM emp_details AS A JOIN designation
AS B JOIN division
AS C JOIN emp_statutorydetails
AS D JOIN vg_gpa_hierarchy
AS E JOIN vg_gpa_policy
AS F ON F.policy_no=D.gpa_no
WHERE D.empid=A.id AND
A.designation_id=B.id AND
A.division_id=C.id AND
E.sum_insured=D.gpa_sum_insured
To model EmpDetails add additional attributes designation,division_name,gpa_no, gpa_sum_insured and fellow_share.
For searching and sorting suggest create extended model EmpDetailsSearch.
Related
I am stuck in 1 left join query in which I want to check multiple columns in on statement.
By default in the database, some column is null which I want to check in the on statement.
Now the issue is when I run a query using the OR operator it only runs the 1st condition and the rest are skipped.
If I use AND operator it throws an error.
So is there any way to get data from multiple conditions?
Here is my query:
$data = "SELECT
b.book_name, b.book_id,
b.cats_id, b.cats_id1,
b.cats_id2, b.cats_id3,
b.cats_id4, b.cats_id5,
b.cats_id6,
b.book_rating,
b.book_author,
b.book_stock,
b.book_publisher,
b.book_front_img,
b.book_status,
p.publisher_id,
p.publisher_name,
a.author_id,
a.author_name,
cat.cats_id,
cat.cats_name,
cat.cats_status
FROM
`books` AS b
LEFT JOIN `publisher` AS p
ON b.book_publisher = p.publisher_id
LEFT JOIN `author` AS a
ON b.book_author = a.author_id
LEFT JOIN categorys As cat
ON b.cats_id = cat.cats_id
OR b.cats_id1 = cat.cats_id
OR b.cats_id2 = cat.cats_id
OR b.cats_id3 = cat.cats_id
OR b.cats_id4 = cat.cats_id
OR b.cats_id5 = cat.cats_id
OR b.cats_id6 = cat.cats_id
GROUP BY
b.book_name
HAVING
cat.cats_name = '$search_data'
AND b.book_status = 1
ORDER BY
$sorting
LIMIT $offset, $page_limit"
You probably don't have more than one author displayed for your multi-author books either. You are misusing MySQL's notorious nonstandard extension to GROUP BY.
To troubleshoot this kind of query, disable that extension with SET sql_mode = CONCAT_WS(',',##sql_mode, 'ONLY_FULL_GROUP_BY'), then try your query again. You'll need more terms in your GROUP BY clause.
It looks like each books row has multiple category id columns. And it looks like you want to display information from your categorys table for each of them.
Use GROUP BY b.book_id, p.publisher_id, a.author_id, cats.cats_id to prevent MySQL's bizarro handling of GROUP BY from concealing your data.
I must add this: your multiple books.cats_id columns are not the SQLish way to handle your many-to-many relationship between books and categories. In the parlance of our trade, your books table is denormalized.
What you want is a new table called books_categorys with two columns, book_id and cats_id. It's called a join table. When a row is present in that table, it means a particular book is in a particular category. It's the SQLish way of handling a setup where each book can be in zero or more categorys. Here's an explanation. MySQL join many to many single row
Then you remove all the cats_id columns from books, and retrieve the categories like this.
Then you do something like this SELECT to get the categories.
SELECT books.id, books.name,
categorys.cats_id, categorys.cats_name, categorys.cats_status
FROM books
JOIN books_categorys ON books.book_id = books_categorys.book_id
JOIN categorys ON books_categorys.cats_id = categorys.cats_id
``
How to write this query in codeigniter
SELECT U.username,U.user_id
FROM storylikes S, user U
WHERE U.user_id=S.user_id_fk AND S.user_id_fk='$id'
try this :
$this->db->select('u.username, u.user_id');
db->where('u. user_id = s.user_id_fk');
$this->db->where('s.user_id_fk = '.$id);
$query = $this->db->get('storylikes s, user u');
use $your_variable = $query->result(); for the result
you should use joins instead of this query
$this->db->select('username,user_id');
$this->db->from('user');
$this->db->join('storylike','storylike.user_id_fk = user.user_id');
$this->db->where('storylike.user_id','$id');
as long as the db helper is loaded... You dont need to do anything special
$query = $this->db->query('SELECT U.username,U.user_id FROM storylikes S, user U WHERE U.user_id=S.user_id_fk AND S.user_id_fk=$id);
Using a cartesian (cross join) by doing FROM with 2 tables can cause some unruly results if not used 'correctly'
I suggest that if you are trying to just join tables together your SQL should be
SELECT U.username,U.user_id
FROM storylikes S, user U
INNER JOIN user U ON S.user_id = U.user_id_fk
WHERE S.user_id_fk=$id
CI querybuilder for this would be:
$query = $this->db->select('U.username,U.user_id')
->join('user U', 'S.user_id = U.user_id_fk', 'inner')
->where('S.user_id', $id)
->get('user U');
Using the correct join for the correct requirements is key;
INNER JOIN to ensure both FROM and the JOIN table match 1 for 1...
LEFT JOIN if you want to ensure you have all data from your FROM table and any without results in the JOIN table show up as NULL
RIGHT JOIN (opposite of left), to grab all data from the JOIN table and only matching data from the FROM table.
CROSS (CARTESIAN) JOIN when you want to ... frankly... mash the data together... A CROSS JOIN will also function like an INNER JOIN when you stipulate criteria in the WHERE statement (like you did) but still, use the correct JOIN for the correct usage-case.
There are other available joins but those are the basics.
I want to join two tables having a common column stationcode(TABLE vfdefects & tempsubstation).
The problem is tempsubstation has duplicate column values while i only want the count of each unique values. With my current attempts it is doubling the value for duplicate entries using LEFT JOIN and GROUP BY
TABLE A
ID|stationID|CODE
TABLE B
A|B|C|D|stationcode
The query is as follows:
SELECT DISTINCT TS.substationid,'20130924',ts.employeeid,ts.substationcode,ts.manufacturingproductid,ts.assemblylineid,ts.teamid,ts.subofficecode,
TA.AllowID,ta.OtherAllowanceID,ta.allowname,ta.minbenchmark,ta.maxbenchmark,COUNT(vfd.DefectsID) Achieved
FROM tempsubstation ts
LEFT JOIN TempAllowances ta ON ts.manufacturingproductid=ta.manufacturingproductid AND ts.subofficecode=ta.subofficecode AND ta.teamid=ts.teamid
LEFT JOIN wms_assemblyqcmapping aqc ON ts.subofficeid=aqc.subofficeid AND ts.manufacturingproductid=aqc.manufacturingproductid AND ts.assemblylineid=aqc.assemblylineid
LEFT JOIN wms_vfdefects vfd ON vfd.QCStationCode=aqc.QCStationCode AND ts.SubstationCode =vfd.MFGStationNum AND DATE(vfd.CreationDate)='2013-09-24'
WHERE ta.AllowID=42
GROUP BY ta.minbenchmark,ta.maxbenchmark,ts.substationid
HAVING COUNT(vfd.DefectsID)>=ta.minbenchmark AND COUNT(vfd.DefectsID)<=ta.maxbenchmark
Change:
FROM tempsubstation ts
to:
FROM (SELECT * FROM tempsubstation
GROUP BY columnWithDuplicateValues) ts
How are you running the query? if via PHP then simplify the SQL and run a second SQL in the PHP read loop.
I'm relatively new to Hibernate. I have to use the 3.2 version and i need to use DetachedCriteria and obtain the following query:
select this_.ID as ID0_1_, this_.SNDG as SNDG0_1_
, this_.NDG as NDG0_1_, this_.T_GWR_PARTNER_ID as T4_0_1_
, table2x1_.ID as ID1_0_, table2x1_.T_GWR_PROPOSAL_ID as T2_1_0_
, table2x1_.GROUP_SNDG as GROUP3_1_0_, table2x1_.GROUP_NAME as GROUP4_1_0_
from t_gwr_proposals this_
inner join
t_gwr_proposal_ratings table2x1_
where table2x1_.T_GWR_PROPOSAL_ID=this_.ID
but I obtain the follwing
select this_.ID as ID0_1_, this_.SNDG as SNDG0_1_
, this_.NDG as NDG0_1_, this_.T_GWR_PARTNER_ID as T4_0_1_
, table2x1_.ID as ID1_0_, table2x1_.T_GWR_PROPOSAL_ID as T2_1_0_
, table2x1_.GROUP_SNDG as GROUP3_1_0_, table2x1_.GROUP_NAME as GROUP4_1_0_
from t_gwr_proposals this_
inner join t_gwr_proposal_ratings table2x1_
** on this_.ID=table2x1_.ID **
where table2x1_.T_GWR_PROPOSAL_ID=this_.ID
using this code:
Criteria c = session.createCriteria(T_gwr_proposals.class, "Table1");
c.createAlias("Table1.T_gwr_proposal_ratings", "Table2"); // inner join by default
c.add(Restrictions.eqProperty("Table2.t_gwr_proposal_id", "Table1.proposalsId"));
return c.list();
Can anyone help me, please?
Thank you very much,
Tommaso A.
Criteria doesn't work with tables, but with entities and their association. You can only join two entities via the associations that exist between them. And only one root entity can exist in a criteria query. So, you won't be able to create such a query in Criteria (HQL should do fine, though) unless an association exists between the entities that uses table2x1_.T_GWR_PROPOSAL_ID=this_.ID as its mapping.
Is it possible to write this sql query without alias? I am using a PHP script that doesn't covers alias so I have problem with that.
If this is possible please provide me with some help
This is the code:
SELECT
time1.Time, time2.Time, time1.Signal, v.name, v.lastname, k.vehicle, time1.Reg
FROM
data time1
INNER JOIN data time2
ON time1.id != time2.id
AND time1.serial= time2.serial
INNER JOIN drivers v
ON time1.FK_ID_driver=v.ID_driver
INNER JOIN vehicles k
ON time1.Reg=k.Reg
WHERE
TIMEDIFF(time2.Time, time1.Time) BETWEEN '00:15:00' AND '00:30:00';
You can't easily achieve what you want, since you are joining the same table twice, and SQL needs an alias to disambiguate them.
You could, however, create a view for table data, and use the view instead of the table name in one of the data joins.
Example:
select data.time,
vData.time,
data.Signal,
drivers.name,
drivers.lastname,
vehicles.vehicle,
data.Reg
from data
inner join vData on data.id != vData.id and data.serial = vData.serial
inner join drivers on data.FK_ID_driver = drivers.ID_driver
inner join vehicles on data.Reg = vehicles.Reg
where TIMEDIFF(vData.time, data.time) between '00:15:00' and '00:30:00';