i'm having some trouble with an SQL Query...
SELECT
s.searchword AS searchword,
s.id AS id,
COUNT( c.id ) AS searchresult,
s.region AS region
FROM search_words AS s
INNER JOIN company_data AS c ON
c.text LIKE CONCAT( '%', s.searchword, '%' )
AND c.region = s.region
GROUP BY 1 ORDER BY s.date DESC
RESULT
[{"searchword":"wholesale","searchid":"416","searchresult":"31","region":"stockholm"},{"searchword":"Business","searchid":"329","searchresult":"1","region":"stockholm"},{"searchword":"Hospital","searchid":"330","searchresult":"1","region":"stockholm"},{"searchword":"Transportation","searchid":"337","searchresult":"4","region":"stockholm"},{"searchword":"Electronic","searchid":"334","searchresult":"4","region":"stockholm"},{"searchword":"Cars","searchid":"338","searchresult":"3","region":"stockholm"},{"searchword":"Food","searchid":"340","searchresult":"11","region":"stockholm"},{"searchword":"Retail","searchid":"342","searchresult":"8","region":"stockholm"},{"searchword":"Leasing","searchid":"343","searchresult":"1","region":"stockholm"}]
The problem here is...the region column has an empty value for all regions.
I need to collect these too... As you can see, it only collects stockholm.
So I was thinking something like...
SELECT
s.searchword AS searchword,
s.id AS id,
COUNT( c.id ) AS searchresult,
s.region AS region
FROM search_words AS s
INNER JOIN company_data AS c ON
c.text LIKE CONCAT( '%', s.searchword, '%' )
AND c.region = s.region OR s.region = ''
GROUP BY 1 ORDER BY s.date DESC
But it doesnt work :(
Empty "values", or nulls, in SQL aren't real values - they are the lack thereof, and need to be handled explicitly by the is operator. Additionally, and has a higher precedence than or, so you should have all the conditions handling the region in brackets:
SELECT
s.searchword AS searchword,
s.id AS id,
COUNT( c.id ) AS searchresult,
s.region AS region
FROM search_words AS s
INNER JOIN company_data AS c ON
c.text LIKE CONCAT( '%', s.searchword, '%' ) AND
(c.region = s.region OR s.region IS NULL)
GROUP BY 1 ORDER BY s.date DESC
If you region can be NULL or '' (empty value), this is the bullet proof way to check:
COALESCE(s.region, '') = ''
This way you replace NULL with '' before comparing to the empty string.
Based on the information provided so far, you might want to try along
SELECT
s.searchword AS searchword,
s.id AS id,
COUNT( c.id ) AS searchresult,
IFNULL(s.region, 'all') AS region
FROM search_words AS s
INNER JOIN company_data AS c
ON IFNULL(s.region, 'all') = IFNULL(c.region, 'all')
AND c.text LIKE CONCAT( '%', s.searchword, '%' )
GROUP BY 1, 2, 4
ORDER BY s.date DESC
;
See it in action: SQL Fiddle.
Please comment, if and as this requires adjustment / further detail. In particular, feel free to adjust the SQL Fiddle (and provide the link to the updated version).
Related
I have a subquery in SELECT and sometimes it returns more than one row. I want to solve the problem like this:
when more than 1 row write a string like 'multi'
otherwise use the value description from comment table
Query:
select
s.id,
(select description from comment c where c.id = s.id)
from student s;
thanks.
You can join, aggregate, and use a conditional expression:
select
s.id,
case when min(c.description) <> max(c.description)
then 'multi'
else min(c.description)
end description
from student s
left join comment c on c.id = s.id
group by s.id
You can also do this with a subquery, which avoids outer aggregation (it is handy if you need more columns from students):
select
s.*,
(
select
case when min(c.description) <> max(c.description)
then 'multi'
else min(c.description)
end
from comment c
where c.id = s.id
) description
from student s
I have a problem I want to get all of the DISTINCT CLIENTIDs in my LCMINV table in which the CLIENTID is in LAAPPL's CLIENTID and LACOBORW's COBORWID and also the APPLICATION STATUS is either 'PEN' OR 'REC'.
Here is my table:
++++++++++++++++++++++++++++++++++++++++++++
+ LAAPPL + LACOBORW + LCMINV +
++++++++++++++++++++++++++++++++++++++++++++
+ CLIENTID + APPLNO + CLIENTID +
+ APPLNO + COBORWID + +
+ STATUS + + +
++++++++++++++++++++++++++++++++++++++++++++
Here is my SQL Query I've done so far:
SELECT DISTINCT(CLIENTID)
FROM LCMINV
WHERE CLIENTID
IN (SELECT CLIENTID, COBORWID
FROM LAAPPL
LEFT OUTER JOIN LACOBORW ON LACOBORW.APPLNO = LAAPPL.APPLNO
WHERE STATUS = 'PEN' OR STATUS = 'REC')
Can it be done in one query or do I need separate queries? I tried my query above an I am getting an error "Too many values"
I would probably use a CTE to break the query up into smaller parts, and then use INNER JOINs to combine the tables. Since You query LAAPPL, I put both columns used into a single subquery, and then join on each column in the next CTE.
It would look something like this:
WITH CTE_LAAPPL AS
(
SELECT
CLIENTID
,APPLNO
FROM LAAPPL
WHERE STATUS IN ('PEN','REC')
)
,CLIENTIDs AS
(
SELECT DISTINCT
l.COBORWID AS CLIENTID
FROM CTE_LAAPPL c
INNER JOIN LACOBORW l ON l.APPLNO = c.APPLNO
UNION
SELECT DISTINCT
l.CLIENTID
FROM CTE_LAAPPL c
INNER JOIN LCMINV l ON l.CLIENTID = c.CLIENTID
)
SELECT
c.CLIENTID
,c.NAME
FROM LCCLIENT c
INNER JOIN CLIENTIDs i ON i.CLIENTID = c.CLIENTID
ORDER BY NAME
I think you just want:
SELECT DISTINCT i.CLIENTID
FROM LCMINV i
WHERE i.CLIENTID IN (SELECT a.CLIENTID
FROM LAAPPL a JOIN
LACOBORW c
ON c.APPLNO = a.APPLNO
WHERE a.STATUS IN ('PEN', 'REC')
);
I'm not really sure why you are joining in LACOBORW. You can probably remove that logic.
I would recommend left joins to get the data you need. Unfortunately, your question 3 does not seem to fit your model because your LCMINV table does not seem to have an id that matches to another table and I cannot understand where LCMINV.CLIENTID should be related to in another context. This works in MSSQL - cannot be sure about Oracle.
--this statement will give you all the names that have a status in the where clause
--you will receive NULL if there is no Co-BorrowerID
select
a.name
, b.applno
, b.status
, c.coborwid
from
lcclient a left join
laapl b on a.clientid = b.clientid left join
lacoborw c on b.applno = c.applno
where
b.status in ('PEN', 'REC')
order by
a.name
All check items in the picture must be shown.
Here is my sql statement.
SELECT DISTINCT
c.code || ' - ' || c.description || ' - ' || s.num AS SearchColumn,
s.num AS Num,
c.code AS Code,
c.product AS Product,
f.faciltyname AS FacilityName,
f.facilityid AS FacilityID,
c.description AS Description,
c.Number AS Num
FROM Facility f
JOIN Code c ON f.codeid = c.codeid
JOIN Structure s ON c.structureid = s.structureid
WHERE searchcolumn > ""
AND ((c.product = 'PROD1' OR c.product IS NULL ))
ORDER BY c.code ASC
they were only duplicating from the code, the num and the productid (which also have special scenario) but actually it has different facilityid and facility name which is needed
This query takes dynamic input in the place of cg.ownerid IN (294777,228649 ,188464).when the input increases in the IN condition the query is taking too much time to execute. Please suggest me a way to optimize it.
For example, the below query is taking 4 seconds, if I reduce the list to just IN(188464) its just taking 1 second.
SELECT *
FROM
(SELECT *,
Row_number() OVER(
ORDER BY datecreated DESC) AS rownum
FROM
(SELECT DISTINCT c.itemid,
(CASE WHEN (Isnull(c.password, '') <> '') THEN 1 ELSE 0 END) AS password,
c.title,
c.encoderid,
c.type,
(CASE WHEN c.author = 'education' THEN 'Discovery' ELSE c.type END) AS TYPE,
c.publisher,
c.description,
c.author,
c.duration,
c.copyright,
c.rating,
c.userid,
Stuff(
(SELECT DISTINCT ' ' + NAME AS [text()]
FROM firsttable SUB
LEFT JOIN secondtable AS rgc ON thirdtable = rgc.id
WHERE SUB.itemid = c.itemid
FOR xml path('')), 1, 1, '')AS [Sub_Categories]
FROM fourthtable AS cg
LEFT JOIN item AS c ON c.itemid = cg.itemid
WHERE Isnull(title, '') <> ''
AND c.active = '1'
AND c.systemid = '20'
AND cg.ownerid IN (294777,
228649,
188464)) AS a) AS b
WHERE rownum BETWEEN 1 AND 32
ORDER BY datecreated DESC
As I haven't further information, I just would suggest a first change of your where clause. They should be moved to a subquery as you left join those columns.
SELECT *
FROM(
SELECT *,
Row_number() OVER(
ORDER BY datecreated DESC) AS rownum
FROM
(SELECT DISTINCT c.itemid,
(CASE WHEN (Isnull(c.password, '') <> '') THEN 1 ELSE 0 END) AS password,
c.title,
c.encoderid,
c.type,
(CASE WHEN c.author = 'education' THEN 'Discovery' ELSE c.type END) AS TYPE,
c.publisher,
c.description,
c.author,
c.duration,
c.copyright,
c.rating,
c.userid,
Stuff(
(
SELECT DISTINCT ' ' + NAME AS [text()]
FROM firsttable SUB
LEFT JOIN secondtable AS rgc ON thirdtable = rgc.id
WHERE SUB.itemid = c.itemid
FOR xml path('')
), 1, 1, ''
) AS [Sub_Categories]
FROM (
SELECT cg.itemid
FROM fourthtable as cg
WHERE cg.ownerid IN (294777,228649, 188464)
) AS cg
LEFT JOIN (
SELECT DISTINCT c.itemid, c.type, c.author, c.title, c.encoderid, c.type, c.publisher, c.description, c.author, c.duration, c.copyright, c.rating,c.userid
FROM item as c
WHERE Isnull(c.title, '') <> ''
AND c.active = '1'
AND c.systemid = '20'
) AS c
ON c.itemid = cg.itemid
) AS a
) AS b
WHERE rownum BETWEEN 1 AND 32
ORDER BY datecreated DESC
But not quite sure if everything is connected right away, your missing some aliases which makes it hard for me to get through your query. But I thing you'll get my idea. :-)
With this little information it's impossible to give any specific ideas, but the normal general things apply:
Turn on statistics io and check what's causing most of the logical I/O and try to solve that
Look at the actual plan and check if there's something that doesn't look ok, for example:
Clustered index / table scans (new index could solve this)
Key lookups with a huge amount of rows (adding more columns to index could solve this, either as normal or included fields)
Spools (new index could solve this)
Big difference between estimated and actual number of rows (10x, 100x and so on)
To give any better hints you should really include the actual plan, table / index structure at least on the essential parts and tell what is too much time (seconds, minutes, hours?)
How can I order the list 'widgets_spec by number of widgets?
select distinct
m.p_c_id
,(select distinct '<li>' +convert(varchar,widgets) + '<br> '
from dbo.spec_master m2
where m.p_c_id = m2.p_c_id and widgets is not null
for xml path(''), type).value('.[1]', 'nvarchar(max)'
) as widgets_spec
from dbo.spec_master m
inner join dbo.ProductVaration pv on pv.p_c_id = m.p_c_id
inner join dbo.Varation v on v.varation_id = pv.varation_type_id
where v.varation_id = 4
group by m.p_c_id
Right now output looks like:
<li>10<br> <li>12<br> <li>15<br> <li>8<br>
When I want it to look like:
<li>8<br> <li>10<br> <li>12<br> <li>15<br>
Thanks for your help.
EDIT: I'm trying to order the internal select statement that concatenates the values.
You do not need both Distinct and Group By. You should use one or the other. In this case, I believe you have to use Group By for it to work.
Select m.p_c_id
, (
Select '<li>' + Cast( m2.num_of_lights As varchar(10)) + '<br /> '
From dbo.spec_master As m2
Where m.p_c_id = m2.p_c_id
And m2.num_of_lights Is Not Null
Group By m2.num_of_lights
Order By m2.num_of_lights
For Xml Path(''), type).value('.[1]', 'nvarchar(max)'
) As numLights_spec
From dbo.spec_master As m
Inner Join dbo.ProductVaration As pv
On pv.p_c_id = m.p_c_id
Inner Join dbo.Varation As v
On v.varation_id = pv.varation_type_id
Where v.varation_id = 4
Group by m.p_c_id
select distinct
m.p_c_id
,(select distinct '<li>' +convert(varchar,num_of_lights) + '<br> '
from dbo.spec_master m2
where m.p_c_id = m2.p_c_id and num_of_lights is not null
ORDER BY convert(varchar,num_of_lights)
) as numLights_spec
from dbo.spec_master m
inner join dbo.ProductVaration pv on pv.p_c_id = m.p_c_id
inner join dbo.Varation v on v.varation_id = pv.varation_type_id
where v.varation_id = 4
group by m.p_c_id
) As SubA
Some of the other answers here won't work, since ordering by the now-varchar num_of_lights will put '8' after '15' as is happening now. You want to order the numLights numerically, which isn't going to happen with those html tags around them. You can add a subselect to your subselect so that you order them, then select them with the tags around them. Example (not tested):
SELECT * FROM (
select distinct
m.p_c_id
,(select distinct '<li>' +convert(varchar,num_of_lights) + '<br> '
from (select distinct p_c_id, num_of_lights from dbo.spec_master order by num_of_lights) m2
where m.p_c_id = m2.p_c_id and num_of_lights is not null
for xml path(''), type).value('.[1]', 'nvarchar(max)'
) as numLights_spec
from dbo.spec_master m
inner join dbo.ProductVaration pv on pv.p_c_id = m.p_c_id
inner join dbo.Varation v on v.varation_id = pv.varation_type_id
where v.varation_id = 4
group by m.p_c_id
Personally, I'd just add the html tags in whatever back-end code is getting the result of the query.