I want to add empty rows to results fetched from a select statement. For example, if the select query fetch 4 rows then 2 empty rows needs to be fetched. Objective should be the number of rows fetched should be 6 every time. The number of rows fetched will be 6 maximum if there are 6 rows with data.
Any idea?
In SQL-SERVER You can create temp table to update It with empty rows and you can use WHILE to insert desired number of rows with empty values. Something like:
-- Create temp table to update data with empty rows
CREATE TABLE #HoldEmptyRows
(
Id NVARCHAR(20),
CustomerName NVARCHAR(20),
CustomerEmail NVARCHAR(20)
)
-- Insert data from SourceTable to temp
INSERT INTO #HoldEmptyRows
SELECT * FROM SourceTable
-- Do while count from temp table < of desired number insert empty rows
WHILE ((SELECT COUNT(*) cnt FROM #HoldEmptyRows) < 6)
BEGIN
INSERT INTO #HoldEmptyRows VALUES ('', '', '')
END
SELECT * FROM #HoldEmptyRows
DEMO AT SQL FIDDLE
Try the below logic:
with cte as
(
select 0 as col1
union all
select col1+1 from cte where cte.col1<10
)
select * into #temp1 from cte
create table #test
(rownum int,col1 varchar(100))
declare #i int=1
while (#i<=6)
begin
insert into #test
select * from
(select row_Number() over (order by (Select 0))rownum, * from #temp1)x
where rownum=#i
Set #i=#i+1
end
select case when rownum>4 then '' else col1 end as col1 from #test
Related
I have following data:
DECLARE #temp TABLE (
ID int
,sn varchar(200)
,comment varchar(2000)
,rownumber int
)
insert into #temp values(1,'sn1',NULL,1)
insert into #temp values(2,'sn1','aaa',2)
insert into #temp values(3,'sn1','bbb',3)
insert into #temp values(4,'sn1',NULL,4)
insert into #temp values(5,'sn2',NULL,1)
insert into #temp values(6,'sn2',NULL,2)
insert into #temp values(7,'sn2',NULL,3)
select * from #temp
And I want to output like this:
2 sn1 aaa 2
5 sn2 NULL 1
same sn, if comment have value, get this lower rownumber's record. For sn1, have two records with comment value, so here, get the the record with rownumber=2
If comment doesn't have value, get the lower rownumber's record. For sn2, get the record with rownumber=1
May I know how to write this SQL?
This is a prioritization query. I think row_number() is the simplest method:
select t.*
from (select t.*,
row_number() over (partition by sn
order by (case when comment is not null then 1 else 2 end),
rownumber
) as seqnum
from #temp t
) t
where seqnum = 1;
Here is a db<>fiddle.
DECLARE #ID INT
SET #ID = (select top 1 USER_REQ_JOB_ID
from T8504_USER_REQ_JOB
where JOB_GRP_ID = 160
order by LST_UPDT_TS desc)
SELECT INPUT_PARM_VAL_TX
from TBL_RPT_JOB_INPUT_PARAM
where USER_REQ_JOB_ID = #ID
This returns these results:
USA
USCC
6
7
2
These five records what I get I want to assign to five different variables to use in stored procedure.
I was trying with table variable like this :
declare #CID table (
Region Char(3)
,Segment Char(3)
,MasterContractId int
,ctcid int
,templateid int)
insert into #CID (Region,Segment,MasterContractId,ctcid,templateid)
But how to insert that 5 rows here?
INSERT INTO #CID
select * from
(
select
'Temp' + convert(char(1), row_number() over (order by (select 0))) as columnName,
INPUT_PARM_VAL_TX as Value
from TBL_RPT_JOB_INPUT_PARAM where USER_REQ_JOB_ID = #ID
) d
pivot
(
max(value)
for columnname in (Temp1, Temp2, Temp3, Temp4, Temp5)
) piv;
See if this helps.
Take a look at this fiddle for an example.
Courtesy:
Add row number to this T-SQL query
Efficiently convert rows to columns in sql server
EDIT: The sql adds an extra column to generate row numbers to use it as an extra column, which is pivoted as column heading.
it's really gross, but one way you could probably do it is this (though you'll need to apply it to your case):
http://sqlfiddle.com/#!6/d41d8/21507
declare #table TABLE (value varchar(50))
INSERT INTO #table
VALUES ('first')
INSERT INTO #table
VALUES ('second')
INSERT INTO #table
VALUES (3)
INSERT INTO #table
VALUES (4)
DECLARE #temp TABLE (id int identity(1,1), value varchar(50))
INSERT INTO #temp
SELECT [value]
FROM #table t
SELECT *
FROM #temp
DECLARE #CID TABLE (Region varchar(50), cont varchar(50), another int, andAnother int)
INSERT INTO #CID
(
Region,
cont,
another,
andAnother
)
VALUES
(
(SELECT value FROM #temp WHERE id = 1), -- Region - varchar
(SELECT value FROM #temp WHERE id = 2), -- cont - varchar
(SELECT value FROM #temp WHERE id = 3), -- another - int
(SELECT value FROM #temp WHERE id = 4) -- andAnother - int
)
SELECT * FROM #cid
note that i assumed you're using mssql, you did not specify
I have this column in T-SQL:
1
2
3
7
10
have SQl a function for detect the missing numbers in the sequence 4,5,6 and 8,9
I have try
something like
if ( a-b >1 ) then we have a missing number
with coalesce but i dont understand .
Thanks by any orientation
You can try this:
DELCARE #a
SET #a = SELECT MIN(number) FROM table
WHILE (SELECT MAX(number) FROM table ) > #a
BEGIN
IF #a NOT IN ( SELECT number FROM table )
PRINT #a
SET #a=#a+1
END
The following query will identify where each sequence starts and the number that are missing:
select t.col + 1 as MissingStart, (nextval - col - 1) as MissingSequenceLength
from (select t.col,
(select min(t.col) from t t2 where t2.col > t.col) as nextval
from t
) t
where nextval - col > 1
This is using a correlated subquery to get the next value in the table.
I know this is a late answer, but here is a query that uses recursive table expressions to get the missing values between the minimum and maximum values in a table:
WITH CTE AS
(
--This is called once to get the minimum and maximum values
SELECT nMin = MIN(t.ID), MAX(t.ID) as 'nMax'
FROM Test t
UNION ALL
--This is called multiple times until the condition is met
SELECT nMin + 1, nMax
FROM CTE
WHERE nMin < nMax
)
--Retrieves all the missing values in the table.
SELECT c.nMin
FROM CTE c
WHERE NOT EXISTS
(
SELECT ID
FROM Test
WHERE c.nMin = ID
)
This was tested with the following schema:
CREATE TABLE Test
(
ID int NOT NULL
)
INSERT INTO Test
Values(1)
INSERT INTO Test
Values(2)
INSERT INTO Test
Values(3)
INSERT INTO Test
Values(7)
INSERT INTO Test
Values(10)
I have like 10 diff temporary tables created in SQL server, what I am looking to do is union them all to a final temporary table holding them all on one table. All the tables have only one row and look pretty much exactly like the two temp tables below.
Here is what I have so far this is an example of just two of the temp tables as their all exactly like this one then #final is the table I want to union the all to:
create table #lo
(
mnbr bigint
)
insert into #login (mnbr)
select distinct (_ID)
FROM [KDB].[am_LOGS].[dbo].[_LOG]
WHERE time >= '2012-7-26 9:00:00
Select count(*) as countreject
from #lo
create table #pffblo
(
mber_br
)
insert into #pffblo (mber_br)
select distinct (mber_br)
from individ ip with (nolock)
join memb mp with (nolock)
on( ip.i_id=mp.i_id and mp.p_type=101)
where ip.times >= '2012-9-26 11:00:00.000'
select count(*) as countaccept
create table #final
(
countreject bigint
, Countacceptbigint
.....
)
insert into #final (Countreject, Countaccept....more rows here...)
select Countreject, Countaccept, ...more rows selected from temp tables.
from #final
union
(select * from #lo)
union
(select * from #pffblo)
select *
from #final
drop table #lo
drop table #pffblo
drop table #final
if this the form to union the rows form those temp tables to this final one. Then is this correct way to show all those rows that were thus unioned. When I do this union I get message number of columns in union need to match number of columns selected in union
I think you're using a union the wrong way. A union is used when you have to datasets that are the same structure and you want to put them into one dataset.
e.g.:
CREATE TABLE #Table1
(
col1 BIGINT
)
CREATE TABLE #Table2
(
col1 BIGINT
)
--populate the temporary tables
CREATE TABLE #Final
(
col1 BIGINT
)
INSERT INTO #Final (col1)
SELECT *
FROM #Table1
UNION
SELECT *
FROM #Table2
drop table #table1
drop table #table2
drop table #Final
I think what you're trying to do is get 1 data set with the count of all your tables in it. Union won't do this.
The easiest way (although not very performant) would be to do select statements like the following:
CREATE TABLE #Table1
(
col1 BIGINT
)
CREATE TABLE #Table2
(
col1 BIGINT
)
--populate the temporary tables
CREATE TABLE #Final
(
col1 BIGINT,
col2 BIGINT
)
INSERT INTO #Final (col1, col2)
select (SELECT Count(*) FROM #Table1) as a, (SELECT Count(*) FROM #Table2) as b
select * From #Final
drop table #table1
drop table #table2
drop table #Final
It appears that you want to take the values from each of temp tables and then place then into a single row of data. This is basically a PIVOT, you can use something like this:
create table #final
(
countreject bigint
, Countaccept bigint
.....
)
insert into #final (Countreject, Countaccept....more rows here...)
select
from
(
select count(*) value, 'Countreject' col -- your UNION ALL's here
from #lo
union all
select count(*) value, 'countaccept' col
from #pffblo
) x
pivot
(
max(value)
for col in ([Countreject], [countaccept])
) p
Explanation:
You will create a subquery similar to this that will contain the COUNT for each of your individual temp table. There are two columns in the subquery, one column contains the count(*) from the table and the other column is the name of the alias:
select count(*) value, 'Countreject' col
from #lo
union all
select count(*) value, 'countaccept' col
from #pffblo
You then PIVOT these values to insert into your final temp table.
If you do not want to use PIVOT, then you can use a CASE statement with an aggregate function:
insert into #final (Countreject, Countaccept....more rows here...)
select max(case when col = 'Countreject' then value end) Countreject,
max(case when col = 'countaccept' then value end) countaccept
from
(
select count(*) value, 'Countreject' col -- your UNION ALL's here
from #lo
union all
select count(*) value, 'countaccept' col
from #pffblo
) x
Or you might be able to JOIN all of the temp tables similar to this, where you create a row_number() for the one record in the table and then you join the tables with the row_number():
insert into #final (Countreject, Countaccept....more rows here...)
select isnull(lo.Countreject, 0) Countreject,
isnull(pffblo.Countaccept, 0) Countaccept
from
(
select count(*) Countreject,
row_number() over(order by (SELECT 0)) rn
from #lo
) lo
left join
(
select count(*) Countaccept,
row_number() over(order by (SELECT 0)) rn
from #pffblo
) pffblo
on lo.rn = pffblo.rn
SELECT *
INTO #1
FROM TABLE2
UNION
SELECT *
FROM TABLE3
UNION
SELECT *
FROM TABLE4
If you would like to get count for each temporary table in the resulting table, you will need just to calculate it for each column in subquery:
INSERT INTO result (col1, col2,...
SELECT
(SELECT COUNT() FROM tbl1) col1
,(SELECT COUNT() FROM tbl2) col2
..
How do I Delete duplicated rows in one Table and update References in another table to the remaining row? The duplication only occurs in the name. The Id Columns are Identity columns.
Example:
Assume we have two tables Doubles and Data.
Doubles table (
Id int,
Name varchar(50)
)
Data Table (
Id int,
DoublesId int
)
Now I Have Two entries in the Doubls table:
Id Name
1 Foo
2 Foo
And two entries in the Data Table:
ID DoublesId
1 1
2 2
At the end there should be only one entry in the Doubles Table:
Id Name
1 Foo
And two entries in the Data Table:
Id DoublesId
1 1
2 1
In the doubles Table there can be any number of duplicated rows per name (up to 30) and also regular 'single' rows.
I've not run this, but hopefully it should be correct, and close enough to the final soln to get you there. Let me know any mistakes if you like and I'll update the answer.
--updates the data table to the min ids for each name
update Data
set id = final_id
from
Data
join
Doubles
on Doubles.id = Data.id
join
(
select
name
min(id) as final_id
from Doubles
group by name
) min_ids
on min_ids.name = Doubles.name
--deletes redundant ids from the Doubles table
delete
from Doubles
where id not in
(
select
min(id) as final_id
from Doubles
group by name
)
Note: I have taken the liberty to rename your Id's to DoubleID and DataID respectively. I find that eassier to work with.
DECLARE #Doubles TABLE (DoubleID INT, Name VARCHAR(50))
DECLARE #Data TABLE (DataID INT, DoubleID INT)
INSERT INTO #Doubles VALUES (1, 'Foo')
INSERT INTO #Doubles VALUES (2, 'Foo')
INSERT INTO #Doubles VALUES (3, 'Bar')
INSERT INTO #Doubles VALUES (4, 'Bar')
INSERT INTO #Data VALUES (1, 1)
INSERT INTO #Data VALUES (1, 2)
INSERT INTO #Data VALUES (1, 3)
INSERT INTO #Data VALUES (1, 4)
SELECT * FROM #Doubles
SELECT * FROM #Data
UPDATE #Data
SET DoubleID = MinDoubleID
FROM #Data dt
INNER JOIN #Doubles db ON db.DoubleID = dt.DoubleID
INNER JOIN (
SELECT db.Name, MinDoubleID = MIN(db.DoubleID)
FROM #Doubles db
GROUP BY db.Name
) dbmin ON dbmin.Name = db.Name
/* Kudos to quassnoi */
;WITH q AS (
SELECT Name, ROW_NUMBER() OVER (PARTITION BY Name ORDER BY Name) AS rn
FROM #Doubles
)
DELETE
FROM q
WHERE rn > 1
SELECT * FROM #Doubles
SELECT * FROM #Data
Take a look at this one, i have tried this, working fine
--create table Doubles ( Id int, Name varchar(50))
--create table Data( Id int, DoublesId int)
--select * from doubles
--select * from data
Declare #NonDuplicateID int
Declare #NonDuplicateName varchar(max)
DECLARE #sqlQuery nvarchar(max)
DECLARE DeleteDuplicate CURSOR FOR
SELECT Max(id),name AS SingleID FROM Doubles
GROUP BY [NAME]
OPEN DeleteDuplicate
FETCH NEXT FROM DeleteDuplicate INTO #NonDuplicateID, #NonDuplicateName
--Fetch next record
WHILE ##FETCH_STATUS = 0
BEGIN
--select b.ID , b.DoublesID, a.[name],a.id asdasd
--from doubles a inner join data b
--on
--a.ID=b.DoublesID
--where b.DoublesID<>#NonDuplicateID
--and a.[name]=#NonDuplicateName
print '---------------------------------------------';
select
#sqlQuery =
'update b
set b.DoublesID=' + cast(#NonDuplicateID as varchar(50)) + '
from
doubles a
inner join
data b
on
a.ID=b.DoublesID
where b.DoublesID<>' + cast(#NonDuplicateID as varchar(50)) +
' and a.[name]=''' + cast(#NonDuplicateName as varchar(max)) +'''';
print #sqlQuery
exec sp_executeSQL #sqlQuery
print '---------------------------------------------';
-- now move the cursor
FETCH NEXT FROM DeleteDuplicate INTO #NonDuplicateID ,#NonDuplicateName
END
CLOSE DeleteDuplicate --Close cursor
DEALLOCATE DeleteDuplicate --Deallocate cursor
---- Delete duplicate rows from original table
DELETE
FROM doubles
WHERE ID NOT IN
(
SELECT MAX(ID)
FROM doubles
GROUP BY [NAME]
)
Please try and let me know if this helped you
Thanks
~ Aamod
If you are using MYSQL following worked for me. I did it for 2 steps
Step 1 -> Update all Data rows to one Double table reference (with lowest id)
Step 2 -> Delete all duplicates with keeping lowest id
Step 1 ->
update Data
join
Doubles
on Data.DoublesId = Doubles.id
join
(
select name, min(id) as final_id
from Doubles
group by name
) min_ids
on min_ids.name = Doubles.name
set DoublesId = min_ids.final_id;
Step 2 ->
DELETE c1 FROM Doubles c1
INNER JOIN Doubles c2
WHERE
c1.id > c2.id AND
c1.name = c2.name;