select id,name from t1
id name
1 A
2 B
select id,name,sal from t2
id name sal
1 C 1000
2 D 2000
select id,name,Null as sal from t1
UNION ALL
select id,name,sal from t2
id name sal
1 A
2 B
1 C 1000
2 D 2000
But I need like this
id name sal
1 A
2 B
1 C 1000
2 D 2000
There should be some gap required between two results
This is more like a reporting type of query since you are asking about formatting of the data layout rather than the content itself. You can somehow tweak the result using:
select id, name, sal
from (
select 1 as section, id, name, null as sal from t1
UNION ALL
select 2, null, null, null
UNION ALL
select 3, id, name, sal from t2
) x
order by section
However, it's worth to point out that formatting is better done in the UI rather than at the database level. At the UI you have access to fonts, colors, borders, bold, italics, underline, etc.
Related
Suppose I have a table like this:
Id Types Timestamp
1 A 2014-02-04 00:00:00
2 A 2014-02-05 00:00:00
1 A 2014-02-05 03:59:00
3 C 2014-05-06 03:59:00
1 B 2014-02-04 03:00:00
2 D 2014-02-05 00:40:00
I would like the output to be like this:
Id 1 2 3 4 5 etc
1 A B A C D ...
2 A D NULL NULL NULL
3 C NULL NULL NULL NULL
Is it possible to make time expresses the type's order.
Thanks for any hints.
Preliminary comments:
SQL can only return a predefined number of columns returned. IMHO, the best you can get is values concatenated in an array.
I have name your input table MyTable and renamed the column Timestamp to MyTimestamp to avoid conflict with the corresponding type's keyword.
You have put C and D in the 1 row of your output. I will treat it as a typo (they are not on ID = 1)
-
WITH RECURSIVE ConcatAndOrder(ID, MyResult, RowNumForOrder, RowCountForOrder) AS (
SELECT ID, ARRAY[Type], RowNumForOrder, RowCountForOrder
FROM IndexedTable
WHERE RowNumForOrder = 1
UNION ALL
SELECT I.ID, MyResult || I.Type, I.RowNumForOrder, I.RowCountForOrder
FROM IndexedTable I
JOIN ConcatAndOrder C on I.ID = C.ID and I.RowNumForOrder = C.RowNumForOrder + 1
), IndexedTable(ID, Type, RowNumForOrder, RowCountForOrder) AS (
SELECT ID, Type,
row_number() OVER (PARTITION BY ID ORDER BY MyTimestamp),
count(*) OVER (PARTITION BY ID)
FROM MyTable
)
SELECT ID, MyResult
FROM ConcatAndOrder
WHERE RowNumForOrder = RowCountForOrder
ORDER BY ID
I have this datatables:
table1
id category
-------------
1 a
2 b
3 c
table2
id heading category_id
----------------------
1 name 1
2 adddress 2
3 phone 3
4 email 1
I want to group this table and display the latest data for that the following query was I used:
SELECT news.id,news.image,news.heading,news.description,
news.date,news.category_id,categories.category
FROM `news`
INNER JOIN categories On news.category_id=categories.id
group by category_id
But I didnt get the latest data that I entered.
Try the query below:
SELECT *
FROM table2 AS tb2 LEFT JOIN table1 AS tb1 ON tb2.category_id = tb1.id
ORDER BY tb1.id
GROUP BY tb2.category_id
In my postgres table, I have two columns of interest: id and name - my goal is to only keep records where id has more than one value in name. In other words, would like to keep all records of ids that have multiple values and where at least one of those values is B
UPDATE: I have tried adding WHERE EXISTS to the queries below but this does not work
The sample data would look like this:
> test
id name
1 1 A
2 2 A
3 3 A
4 4 A
5 5 A
6 6 A
7 7 A
8 2 B
9 1 B
10 2 B
and the output would look like this:
> output
id name
1 1 A
2 2 A
8 2 B
9 1 B
10 2 B
How would one write a query to select only these kinds records?
Based on your description you would seem to want:
select id, name
from (select t.*, min(name) over (partition by id) as min_name,
max(name) over (partition by id) as max_name
from t
) t
where min_name < max_name;
This can be done using EXISTS:
select id, name
from test t1
where exists (select *
from test t2
where t1.id = t2.id
and t1.name <> t2.name) -- this will select those with multiple names for the id
and exists (select *
from test t3
where t1.id = t3.id
and t3.name = 'B') -- this will select those with at least one b for that id
Those records where for their id more than one name shines up, right?
This could be formulated in "SQL" as follows:
select * from table t1
where id in (
select id
from table t2
group by id
having count(name) > 1)
I am stuck at this T-SQL query.
I have table below
Age SectioName Cost
---------------------
1 Section1 100
2 Section1 200
1 Section2 500
3 Section2 100
4 Section2 200
Lets say for each section I can have maximum 5 Age. In above table there are some missing Ages. How do I insert missing Ages for each section. (Possibly without using cursor). The cost would be zero for missing Ages
So after the insertion the table should look like
Age SectioName Cost
---------------------
1 Section1 100
2 Section1 200
3 Section1 0
4 Section1 0
5 Section1 0
1 Section2 500
2 Section2 0
3 Section2 100
4 Section2 200
5 Section2 0
EDIT1
I should have been more clear with my question. The maximum age is dynamic value. It could be 5,6,10 or someother value but it will be always less than 25.
I think I got it
;WITH tally AS
(
SELECT 1 AS r
UNION ALL
SELECT r + 1 AS r
FROM tally
WHERE r < 5 -- this value could be dynamic now
)
select n.r, t.SectionName, 0 as Cost
from (select distinct SectionName from TempFormsSectionValues) t
cross join
(select ta.r FROM tally ta) n
where not exists
(select * from TempFormsSectionValues where YearsAgo = n.r and SectionName = t.SectionName)
order by t.SectionName, n.r
You can use this query to select missing value:
select n.num, t.SectioName, 0 as Cost
from (select distinct SectioName from table1) t
cross join
(select 1 as num union select 2 union select 3 union select 4 union select 5) n
where not exists
(select * from table1 where table1.age = n.num and table1.SectioName = t.SectioName)
It creates a Cartesian product of sections and numbers 1 to 5 and then selects those that doesn't exist yet. You can then use this query for the source of insert into your table.
SQL Fiddle (it has order by added to check the results easier but it's not necessary for inserting).
Use below query to generate missing rows
SELECT t1.Age,t1.Section,ISNULL(t2.Cost,0) as Cost
FROM
(
SELECT 1 as Age,'Section1' as Section,0 as Cost
UNION
SELECT 2,'Section1',0
UNION
SELECT 3,'Section1',0
UNION
SELECT 4,'Section1',0
UNION
SELECT 5,'Section1',0
UNION
SELECT 1,'Section2',0
UNION
SELECT 2,'Section2',0
UNION
SELECT 3,'Section2',0
UNION
SELECT 4,'Section2',0
UNION
SELECT 5,'Section2',0
) as t1
LEFT JOIN test t2
ON t1.Age=t2.Age AND t1.Section=t2.Section
ORDER BY Section,Age
SQL Fiddle
You can utilize above result set for inserting missing rows by using EXCEPT operator to exclude already existing rows in table -
INSERT INTO test
SELECT t1.Age,t1.Section,ISNULL(t2.Cost,0) as Cost
FROM
(
SELECT 1 as Age,'Section1' as Section,0 as Cost
UNION
SELECT 2,'Section1',0
UNION
SELECT 3,'Section1',0
UNION
SELECT 4,'Section1',0
UNION
SELECT 5,'Section1',0
UNION
SELECT 1,'Section2',0
UNION
SELECT 2,'Section2',0
UNION
SELECT 3,'Section2',0
UNION
SELECT 4,'Section2',0
UNION
SELECT 5,'Section2',0
) as t1
LEFT JOIN test t2
ON t1.Age=t2.Age AND t1.Section=t2.Section
EXCEPT
SELECT Age,Section,Cost
FROM test
SELECT * FROM test
ORDER BY Section,Age
http://www.sqlfiddle.com/#!3/d9035/11
I have a table holding periods and prices, something like this
itemid periodid periodstart periodend price
1 1 2011/01/01 2011/05/01 50.00
1 2 2011/05/02 2011/08/01 80.00
1 3 2011/08/02 2011/12/31 50.00
Now I have a second table that can hold single dates or periods
itemid periodid periodstart periodend price
1 8 2011/07/01 2011/07/17 70.00
Now, how can I do a query that would return the following result?
itemid periodid periodstart periodend price
1 1 2011/01/01 2011/05/01 50.00
1 2 2011/05/02 2011/06/30 80.00 ****
1 8 2011/07/01 2011/07/17 70.00 ***
1 2 2011/07/18 2011/08/01 80.00 ****
1 3 2011/08/02 2011/12/31 50.00
EDIT -- Highlight the fact that the merge is modifying the dates around it
How about something like
select
t1.itemid,t1.periodid,t1.periodstart, coalesce(dateadd(d,-1,t2.periodstart),t1.periodend) as periodend, t1.price
from t1
left outer join t2 on t1.periodstart < t2.periodstart and t1.periodend>t2.periodstart and t1.itemid=t2.itemid
union
select
t2.itemid,t2.periodid,t2.periodstart, t2.periodend, t2.price
from t1
inner join t2 on t1.periodstart < t2.periodstart and t1.periodend>t2.periodstart and t1.itemid=t2.itemid
union
select
t1.itemid,t1.periodid,dateAdd(d,1,t2.periodend), t1.periodend, t1.price
from t1
inner join t2 on t1.periodstart < t2.periodend and t1.periodend>t2.periodend and t1.itemid=t2.itemid
order by periodstart
Use a Union?
Select itemid, periodid,periodstart, periodend,price FROM table1
UNION
SELECT itemid, periodid,periodstart, periodend,price FROM table2
Are you trying to do some sort of join though? the result set doesn't match the two tables you supplied.
Are you accounting for entries that line up or are you just trying to combine the rows?
if the latter, you could just do a Union
Select itemid, periodid, periodstart, periodend, price
From Table1
Union
Select itemid, periodid, periodstart, periodend, price
From Table2