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Query to Update a value with matching records


Query to Update a value with matching records

By : user2954006
Date : November 21 2020, 07:31 AM
Any of those help This query does what I think you're asking:
If WebID is numeric datatype ...
code :
UPDATE MissingT
SET AuthManager = DMin("AuthManager","MissingT","WebID=" & [WebID]); 
UPDATE MissingT
SET AuthManager = DMin("AuthManager","MissingT","WebID='" & [WebID] & "'");


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Is it possible to get matching and non-matching records with one query in sqlite? If so, how?

Is it possible to get matching and non-matching records with one query in sqlite? If so, how?


By : dmikey098
Date : March 29 2020, 07:55 AM
I wish did fix the issue. You can use the 2 queries on an UNION: http://www.tutorialspoint.com/sqlite/sqlite_unions_clause.htm
code :
SELECT A, B, C FROM TABLE WHERE D = 1
UNION
SELECT A, B, C FROM TABLE WHERE D = 2
Sql query - get all matching records and remaining records in left table

Sql query - get all matching records and remaining records in left table


By : Marius Muresan
Date : March 29 2020, 07:55 AM
will help you Assuming that ID is the primary key in both tables, you can use left outer join, and ask for rows where the outer id column is NULL:
code :
SELECT t1.ID
FROM test1 t1
LEFT OUTER JOIN test2 t2 ON t1.ID=t2.ID
WHERE t2.STATUS <> 'Done' OR t2.ID IS NULL
bookshelf js – how to query records by matching criteria on associated records?

bookshelf js – how to query records by matching criteria on associated records?


By : A.Chap
Date : March 29 2020, 07:55 AM
it helps some times It looks like there is no really elegant solution. I solved my problem finally, by using joins.
Which looks like this:
code :
Person.query((qb) => {
  qb.join('cars', 'cars.person_id', 'person.id');
  // no that the cars are joined,
  // they are available for querying
  qb.where({'cars.make': 'Rover'});
})
.then((result) => {
  // do stuff
})
.catch((err) => {
  // always catch errors
  console.error(err);
});
Query to Fetch Matching Records between 2 tables and not matching Null records from Second Tabl2

Query to Fetch Matching Records between 2 tables and not matching Null records from Second Tabl2


By : N'fa Ali Badara Mans
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , I've 2 tables as below. I need to fetch the matching names between the 2 tables and also the unmatching NULL Records in the 2second table. The Column Number (key Vlaues) should be in Join . I used the below query. But is there any way to get rid of Union, or is there any other better way of writing the query than below? , As for me for this request is more convenient something like
code :
select distinct a.name from FirstTable a,SecondTable b
where a.number=b.number and a.name=nvl(b.name,a.name)
What will be the query for fetching all the records from left table and matching records from the right tables?

What will be the query for fetching all the records from left table and matching records from the right tables?


By : user3468899
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further What will be the query for fetching all the records from left table and matching records from the right tables? , You are describing a LEFT JOIN and GROUP BY:
code :
SELECT p.id, p.property_name,
       (CASE WHEN COUNT(mf.media_alt) > 0 THEN 'YES'
             WHEN COUNT(mf.cid) > 0 THEN 'NO'
             ELSE '-'
        END) as media_alt
FROM properties p LEFT JOIN
     property_medias pm
     ON pm.property_id = p.id AND pm.cid = p.cid LEFT JOIN
     media_files mf
     ON mf.id = pm.media_file_id AND mf.cid = pm.cid
WHERE p.cid = 1
GROUP BY p.id, p.property_name;
SELECT p.id, p.property_name,
       (CASE WHEN EXISTS (SELECT 1
                          FROM property_medias pm LEFT JOIN
                               media_files mf
                               ON mf.id = pm.media_file_id AND mf.cid = pm.cid
                          WHERE pm.property_id = p.id AND
                                pm.cid = p.cid AND
                                mf.media_alt IS NOT NULL
                         )
             THEN 'YES'
             WHEN EXISTS (SELECT 1
                          FROM property_medias pm 
                          WHERE pm.property_id = p.id AND
                                pm.cid = p.cid
                         )
             THEN 'NO'
             ELSE '-'
        END) as media_alt
FROM properties p        
WHERE p.cid = 1;
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