I have a stored procedure with multiple CTE's where I am trying to insert the outcome in to a table. I have tried following the guidance here Combining INSERT INTO and WITH/CTE but having no luck. Could someone advise where to put the INSERT please?
AS BEGIN
With CTE1 As (
Query
),
CTE2 As (
Query
),
CTE3 As (
Query
)
INSERT INTO dbo.table
(
Fields
)
Select * From
(
Select * from CTE1
Union
Select * from CTE2
Union
Select * from CTE3
) as A
END
;
Related
with cte1 as
(
select count(*) as count_emp from emp;
),
cte2 as
(
select count(*) as count_dept from dept;
),
cte3 as
(
select count(*) as count_hr from hr;
)
select count_emp,count_dept,count_hr from cte1,cte2,cte3;
I want output in one column with three rows.
for more details see image .
Use union all:
select count_emp from cte1
union all
select count_dept from cte2
union all
select count_hr from cte3;
Do note that the results are not guaranteed to be in any particular order. I would highly advise you to label the rows:
select 'emp', count_emp as cnt from cte1
union all
select 'dept', count_dept from cte2
union all
select 'hr', count_hr from cte3;
I have been given a script to clean up which uses approx 85 temp tables, I have been advised to use Common Table Expressions.
I have 3 CTE's, the first is the result of 7 tables pulled together using Union all. Followed by 2 more CTE's. The script runs up to:
select * from CTE_1
Union all
select * from CTE_2
Union all
select * from CTE_3
I then want to put all these results into a reusable table so I can then add some joins with various case statement logic. How can I put these into a temp table so that I can reference it later.
I'm looking to reduce the amount of temp tables so rather than put each CTE into a temp table I would ideally put multiple CTE's into one temp table. I currently have:
; with [CTE One] as (
select 1 as col
),
[CTE Two] as (
select 2 as col
),
[CTE Three] as (
select 3 as col
)
select * from CTE_1
Union all
select * from CTE_2
Union all
select * from CTE_3
Alternatively..
IF ( OBJECT_ID('tempdb..#temptable') IS NOT NULL )
BEGIN
DROP TABLE #temptable
END
CREATE TABLE #temptable
(
val int
)
;
WITH [CTE One]
AS ( SELECT 1 AS col
),
[CTE Two]
AS ( SELECT 2 AS col
),
[CTE Three]
AS ( SELECT 3 AS col
)
INSERT INTO #temptable (val)
SELECT *
FROM ( SELECT *
FROM CTE_1
UNION ALL
SELECT *
FROM CTE_2
UNION ALL
SELECT *
FROM CTE_3
) T
Can't you just use into?
select *
into #temptable
from CTE_1
Union all
select * from CTE_2
Union all
select * from CTE_3;
I might also be inclined to use a table variable, if the code is structured appropriately.
Select rows with same ID/email but different value in other table
I have two tables: person and email, now there are mail addresses that have the same value, and persons/ID with different values.
Can anyone tell how to write an SQL query for this? I have tried but I can't figure it out. I have found some answers but then it is always finding the match in the same table
Like this
Table_person. Table_email
1 email#persoon1
2 email#persoon2
3 email#persoon3
4 email#persoon1
5 email#persoon5
6 email#persoon2
The output should be
Table_person Table_email
1 email#persoon1
4 email#persoon1
2 email#persoon2
6 email#persoon2
Using a common table expression with row_number()
;with cte as (
select *
, rn = row_number() over (partition by email order by person_id)
from email e
)
select *
from cte
where exists (
select 1
from cte i
where i.email = cte.email
and rn > 1
)
or using exists()
select *
from email e
where exists (
select 1
from email i
where i.email = e.email
and i.person_id <> e.person_id
)
rextester demo: http://rextester.com/JHFEF82373
Hope it will helps you
;with cte(Table_person,Table_email)
AS
(
SELECT 1,'email#persoon1' UNION ALL
SELECT 2,'email#persoon2' UNION ALL
SELECT 3,'email#persoon3' UNION ALL
SELECT 4,'email#persoon1' UNION ALL
SELECT 5,'email#persoon5' UNION ALL
SELECT 6,'email#persoon2'
)
,Cte2
AS
(
SELECT Table_person,Table_email From
(
Select Table_person,Table_email,ROW_NUMBER()OVER(Partition by Table_email Order By Table_person )Seq
from cte
)dt WHERE dt.Seq>1
)
,Final
AS
(
SELECT Table_person,Table_email From
(
Select Table_person,Table_email,ROW_NUMBER()OVER(Partition by Table_email Order By Table_email )Seq2
from cte
)dt
where dt.Seq2>1
Union ALL
SELECT Table_person,Table_email From cte2
)
SELECt Table_person,Table_email from Final
Please don't mark this question as duplicate of CTE within a CTE .. I checked that question and answer ... but that answer does not satisfy my need.
I want to run Nested CTE query like this
Drop Table #Temp
Create Table #Temp(name1 text, name2 text)
Insert INTO #Temp Values ('test','test')
Insert INTO #Temp Values ('test','test')
;WITH CTE1 AS (
With CTE2 as ( Select * from #Temp)
)
Select * from CTE1
or
;WITH CTE1 AS (
Select * From (With CTE2 as ( Select * from #Temp))
)
Select * from CTE1
In our structure... the inner CTE2 query have been provided by other system .. so I can't control
inner part of the query... so.. here my duty is only select values from inner query and form new CTE in my system ...
And please imagine this
;WITH CTE1 AS (
"Query Provide by Other System"
)
In some cases the "Query Provide by Other System" start with CTE..this may or may not be the CTE query... that is the exact problem for I can't use like below
;WITH CTE1 AS (
Select * From
)
,With CTE2 as
( Select * from #Temp))
pls help anyone to prcoeed this, I guess my need is too dynamic
Just to have an idea:
;WITH cte1 AS
(
SELECT * FROM ...
),
cte2 as
(
SELECT * FROM ...
),
cte3 as
(
SELECT * FROM ... INNER JOIN cte2 ON...
),
SELECT *
FROM
cte1
INNER JOIN cte3 ON ...
Separate your CTEs with ,s rather than nesting them.
;
WITH
CTE2 AS
(
SELECT * FROM #Temp
)
,
CTE1 AS
(
SELECT * FROM CTE2
)
SELECT
*
FROM
CTE1
EDIT : Following your additional comments
As I understand it, you are being provided with a system generated query that you then want to embed in another query. Sometimes that system generated query uses a CTE, sometimes it doesn't; you don't know in advance the format of that query.
Unfortunately for you this means that you can not embed this within another CTE.
One option could be to use real views.
CREATE VIEW xxx AS
<system generated code here>
;
SELECT
*
FROM
xxx
;
You do then, however, have to be very careful about concurrency; two concurrent users trying to create the same view with the same name.
The better solution would be to approach the vendor of the system with is creating the system generated query and ask them how they propose you use it.
;with BASE AS (
SELECT * FROM table1
), BASE2 AS (
SELECT * from table2
), BASE3 AS (
SELECT * FROM table3
) SELECT * FROM BASE INNER JOIN BASE3 ...
I guess this is what you are trying to do.
If your system generated query uses db qualified object names you can hack this by using OPENQUERY:
WITH CTE AS
( SELECT *
FROM OPENQUERY([Your Server], 'Query Provide by Other System')
)
SELECT *
FROM CTE;
You may need to configure your server for data access:
EXEC sp_serveroption 'your server', 'DATA ACCESS', TRUE;
MY question is simple, How do you avoid the automatic sorting which the UNION ALL query does?
This is my query
SELECT * INTO #TEMP1 FROM Final
SELECT * INTO #TEMP2 FROM #TEMP1 WHERE MomentId = #MomentId
SELECT * INTO #TEMP3 FROM #TEMP1 WHERE RowNum BETWEEN #StartRow AND #EndRow
SELECT * INTO #TEMP4 FROM (SELECT *FROM #TEMP3 UNION ALL SELECT *FROM #TEMP2) as tmp
SELECT DISTINCT * FROM #TEMP4
I'm using SQL Server 2008. I need the Union ALL to perform like a simple Concatenate, which it isn't! Appreciate your help in this.
I think you're mistaken on which operation is actually causing the sort. Check the code below, UNION ALL will not cause a sort. You may be looking at the DISTINCT operation, which uses a sort (it sorts all items and the eliminates duplicates)
CREATE TABLE #Temp1
(
i int
)
CREATE TABLE #temp2
(
i int
)
INSERT INTO #Temp1
SELECT 3 UNION ALL
SELECT 1 UNION ALL
SELECT 8 UNION ALL
SELECT 2
INSERT INTO #Temp2
SELECT 7 UNION ALL
SELECT 1 UNION ALL
SELECT 5 UNION ALL
SELECT 6
SELECT * INTO #TEMP3
FROM (SELECT * FROM #Temp1 UNION ALL SELECT * FROM #temp2) X
UNION ALL adds all the records where as UNION adds only new/distinct records.
Since you are using UNION ALL and using DISTINCT soon after, I think you are looking for UNION
SELECT * INTO #TEMP4 FROM
(
SELECT * FROM #TEMP3
UNION --JUST UNION
SELECT * FROM #TEMP2
) AnotherTemp
Or you can simplify it as
SELECT * INTO #TEMP4 FROM
SELECT DISTINCT *
FROM Final
WHERE MomentId = #MomentId OR RowNum BETWEEN #StartRow AND #EndRow
I'm not familiar with SQL-Server, but you might get my idea
select *, 'A' tid, rownumber() tno from tableA
union all
select *, 'B', rownumber() from tableB
order by tid, tno;
This should get you all records of tableA in their specific order, followed by all records of tableB in their specific order.