I am trying to insert in child table , taking the [ACCNO] id and its count value from parent table ,and then inserting [ACCNO] in the FK of child table and count against each [ACCNO] , but some error still there
INSERT INTO [test1].[dbo].[star_schema]
(
[ACCNO],
[book_frequency])
VALUES
(SELECT [books_dimension] .ACCNO , count(books_dimension .[ACCNO]) as book_frequency
FROM [books_dimension]
group by [ACCNO] having (COUNT(*)>1) order by book_frequency desc)
GO
Its giving error near SELECT and in very last bracket.
I also like to mention that in table [star_schema] , the id is star_int which is identity –
You need no VALUES and ORDER BY keyword when inserting from select, do like this:
INSERT INTO [test1].[dbo].[star_schema]([ACCNO], [book_frequency])
SELECT
[books_dimension].ACCNO,
count(books_dimension.[ACCNO]) as book_frequency
FROM [books_dimension]
group by [ACCNO]
having COUNT(*)>1
Related
I wrote a stored procedure that can insert bulk data into table using the merge statement.
Problem is that when I insert itemid 1024,1000,1012,1025 in this order, then SQL Server automatically changes order of itemid 1000,1012,1024,1025.
I want to insert data that I actually pass.
Here is sample code. This will parse XML string into table object:
DECLARE #tblPurchase TABLE
(
Purchase_Detail_ID INT ,
Purchase_ID INT ,
Head_ID INT ,
Item_ID INT
);
INSERT INTO #tblPurchase (Purchase_Detail_ID, Purchase_ID, Head_ID, Item_ID)
SELECT
Tbl.Col.value('Purchase_Detail_ID[1]', 'INT') AS Purchase_Detail_ID,
Tbl.Col.value('Purchase_ID[1]', 'INT') AS Purchase_ID,
Tbl.Col.value('Head_ID[1]', 'INT') AS Head_ID,
Tbl.Col.value('Item_ID[1]', 'INT') AS Item_ID
FROM
#PurchaseDetailsXML.nodes('/documentelement/TRN_Purchase_Details') Tbl(Col)
This will insert bulk data into the TRN_Purchase_Details table:
MERGE TRN_Purchase_Details MTD
USING (SELECT
Purchase_Detail_ID,
Id AS Purchase_ID,
Head_ID, Item_ID
FROM
#tblPurchase
LEFT JOIN
#ChangeResult ON 1 = 1) AS TMTD ON MTD.Purchase_Detail_ID = TMTD.Purchase_Detail_ID
AND MTD.Purchase_ID = TMTD.Purchase_ID
WHEN MATCHED THEN
UPDATE SET MTD.Head_ID = TMTD.Head_ID,
MTD.Item_ID = TMTD.Item_ID
WHEN NOT MATCHED BY TARGET THEN
INSERT (Purchase_ID, Head_ID, Item_ID)
VALUES (Purchase_ID, Head_ID, Item_ID)
WHEN NOT MATCHED BY SOURCE AND
MTD.Purchase_ID = (SELECT TOP 1 Id
FROM #ChangeResult
WHERE Id > 0) THEN
DELETE;
Rows in a SQL table don't have any order. They come back in indeterminate order unless you specify an order by.
Try adding an identity column to your temporary table?
DECLARE #tblPurchase TABLE
(
ID int identity,
Purchase_Detail_ID INT ,
The identity column might capture the order of the XML elements.
If that doesn't work, you can calculate the position of the elements in the XML and store that position in the temporary table.
As mentioned elsewhere, data in a table is stored as an unordered set. If you need to be able to go back to your table after data is inserted and determine the order that it was inserted, you'll have to add a column to the table schema to record that information.
It could be something as simple as adding an IDENTITY column, which will increment on each row addition, or perhaps a column with a DATETIME data type and a GETDATE() default value so you not only know the order rows were added, but exactly when that happened.
I'm stuck with this since last week. I have two tables, where the id column of CustomerTbl correlates with CustomerID column of PurchaseTbl:
What I'm trying to achieve is I want to duplicate the data of the table from itself, but copy the newly generated id of CustomerTbl to PurchaseTbl's CustomerID
Just like from the screenshots above. Glad for any help :)
You may use OUTPUT clause to access to the new ID. But to access to both OLD ID and NEW ID, you will need to use MERGE statement. INSERT statement does not allow you to access to the source old id.
first you need somewhere to store the old and new id, a mapping table. You may use table variable or temp table
declare #out table
(
old_id int,
new_id int
)
then the merge statement with output clause
merge
#CustomerTbl as t
using
(
select id, name
from CustomerTbl
) as s
on 1 = 2 -- force it to `false`, not matched
when not matched then
insert (name)
values (name)
output -- the output clause
s.id, -- old_id
inserted.id -- new_id
into #out (old_id, new_id);
after that you just use the #out to join back using old_id to obtain the new_id for the PurchaseTbl
insert into PurchaseTbl (CustomerID, Item, Price)
select o.new_id, p.Item, p.Price
from #out o
inner join PurchaseTbl p on o.old_id = p.CustomerID
Not sure what your end game is, but one way you could solve this is this:
INSERT INTO purchaseTbl ( customerid ,
item ,
price )
SELECT customerid + 3 ,
item ,
price
FROM purchaseTbl;
I am new to SQL and I an trying to understand the GROUP BY statement.
I have inserted the following data in SQL:
CREATE TABLE table( id integer, type text);
INSERT INTO table VALUES (1,'start');
INSERT INTO table VALUES (2,'start');
INSERT INTO table VALUES (2,'complete');
INSERT INTO table VALUES (3,'complete');
INSERT INTO table VALUES (3,'start');
INSERT INTO table VALUES (4,'start');
I want to select those IDs that do not have a type 'complete'. For this example I should get IDs 1, 4.
I have tried multiple GROUP BY - HAVING combinations. My best approach is:
SELECT id from customers group by type having type!='complete';
but the resulted IDs are 4,3,2.
Could anyone give me a hint about what I am doing wrong?
You are close. The having clause needs an aggregation function and you need to aggregate by id:
select id
from table t
group by id
having sum(case when type = 'complete' then 1 else 0 end) = 0;
Normally, if you have something called an id, you would also have a table with that as primary key. If so, you can also do:
select it.id
from idtable it
where not exists (select 1
from table t
where t.type = 'complete' and it.id = t.id
);
I need to populate reqopt table which have two varchar fields (valeur, categorie), the first shoud be field from another table (mytable) and another should be a simple varchar ('prop').
I've tried this
INSERT INTO reqopt(valeur, categorie) (select distinct name from mytable , 'prop')
I got this error Incorrect syntax near 'prop'.
INSERT INTO reqopt(valeur, categorie)
select distinct name, 'prop'
from mytable
SELECT DISTINCT NAME AS valeur,'PROP' REMARKS AS categorie
INTO reqopt
FROM MYTABLE
--WHERE CONDITION IF REQUIRED
I have to insert data into first and second table directly. But the third table which I received data as array and inserted into 3rd table as same.
In my 3rd table values will be repeated. Ex:
values:
{name=ff,age=45,empid=23,desig=se,offid=1,details=kk,offid=2,details=aa,offid=3,details=bb,offid=4,details=cc}
So using 2nd table userid as same for all the offid, but details and other columns are different
#My issue is i will get single hit but i need to iterate for 3rd table.
with first_insert as (
insert into sample(name,age)
values(?,?)
RETURNING id
),
second_insert as (
insert into sample1(empid,desig)
values((select id from first_insert),?)
RETURNING userid
)
insert into sample2(offid,details)
values((select userid from second_insert),?)
Is this available or possible in PostgreSQL?
Yes, absolutely possible.
You can join rows from CTEs to VALUES expressions to combine them for a new INSERT in a data-modifying CTE. Something like this:
WITH first_insert AS (
INSERT INTO sample(name,age)
VALUES (?,?)
RETURNING id
)
, second_insert AS (
INSERT INTO sample1(empid, desig, colx)
SELECT i1.id, v.desig, v.colx
FROM first_insert i1
, (VALUES(?,?)) AS v(desig, colx)
RETURNING userid
)
INSERT INTO sample2(offid, details, col2, ...)
SELECT i2.userid, v.details, ...
FROM second_insert i2
, (VALUES (?,?, ...)) AS v(details, col2, ...);