I'm having a problem trying to insert some values into a table. I made an empty table with the fields
id(primary key)
association_id
resource_id
I have another table with
resource_id
association_id
and another one with
id(coresponding to the association_id in the former one)
image
I want to insert the resource_id and association_id from the first populated table, where the image field of the coresponding id from the last table is not empty.
I tried this:
INSERT IGNORE INTO `logo_associations` (``,`association_id`,`resource_id`)
SELECT
``,
`a`.`association_id`,
`a`.`resource_id`
FROM doc24_associations_have_resources a
Join doc24_associations An on a.association_id = An.id
WHERE An.image<>''
but it does not work
Try this:
INSERT INTO logo_associations (association_id, resource_id)
SELECT a.association_id
,a.resource_id
FROM doc24_associations_have_resources a
LEFT JOIN doc24_associations an ON a.association_id = an.id
WHERE an.image IS NULL -- check for null with left join
This is valid for SQL Server. You do not need to select and insert the first column as it is an identity as you mention.
My experience is based on SQL Server but the SQL may be very similar
INSERT INTO DestinationTable
(association_id, resource_id)
SELECT LNK.assocication_id,
LNK.resource_id
FROM LinkTable AS LNK
INNER JOIN ImageTable AS IMG ON IMG.id = LNK.association_id
AND IMG.image IS NOT NULL
Above I assume the following:
Tables are named DestinationTable, LinkTable, and ImageTable respectively
In DestinationTable the primary key (id) is auto generated
Related
Suppose,
I have a table tblClasses and tblStudents
Now each class have multiple student.
tblClass
ID Name
1 ClassA
2 ClassB
3 ClassC
tblStudents
ID Name Class_ID
1. john 1
2. Mathew 1
3. Imran 2
4. Jenny 3
now, I have another server having exact same db and tables and I am copying data from server 1 to server 2 from same tables using the Select and Insert e.g.
insert into server2.dbo.tblClass (Name)
select Name from server1.dbo.tblClass
and for tblStudents
insert into server2.dbo.tblStudents (Name, Class_ID)
select Name, Class_ID from server1.dbo.tblStudents
now this is ok but the real problem is that in server2 after copying the data, how to populate the tblStudents fk Class_ID with the actual IDs of tblClass which are generated after inserting the data into tblStudents in server2 since PKs are Identity and autoincremented and cannot change the design.
What to do in this case?
In simple words, when a parent and child data are copied then in the child table the foreign key field needs to be populated with the actual IDs of the parent not the one from where it is copied which would be obviously different.
I am not allowed to change the table design or properties and have to do it using the queries.
Any suggestions?
The way is to create a ClassId mapping table on class records insertion and use this mapping table to translate OldClassId to NewClassId for the new Student table:
declare #ClassIds table (OldClassId int, NewClassId int);
merge into newDB.dbo.tblClasses as target
using
(
select
Id = Id * (-1),
[Name]
from
oldDB.dbo.tblClasses
)
as source on source.Id = target.Id
when not matched by target then
insert ([Name])
values (source.[Name])
output source.Id * (-1), inserted.Id -- ← the trick is here
into #ClassIds (OldClassId, NewClassId);
insert into newDB.dbo.tblStudents
select
s.Id,
s.[Name],
ClassId = ids.NewClassId
from
oldDB.dbo.tblStudents s
inner join #ClassIds ids on ids.OldClassId = s.ClassId;
The major trick is that the MERGE statement may work with not not only inserted and deleted columns (as INSERT, UPDATE, DELETE statements do) but with the source columns as well.
There are two ways to go that I can think:
The first is to use SET IDENTITY_INSERT tblClass ON. This is not a design change, so you should be able to do it. After that, you can insert your own values in tblClass.ID (although you will need the select list parenthesis):
insert tblClass(ID,Name) values (1, 'ClassA')....
Alternatively, you could make a query that connects student ids to class names, and then use that back to create the respective connections:
-- export/save this in temp table
select s.Name,c.Name as className
into #a
from tblStudents s
left join tblClass c on s.Class_ID=c.ID
--now use this to fill db2 tblStudents
insert tblStudents(Name,Class_ID)
select #a.Name,c.ID
from
#a
inner join tblClass c on #a.className=c.Name
I'm developing a query for a program where user has to enter one or multiple multiple values into a DB table.
The issue with the query is when you try to insert multiples values it could be that some of those values are repeated in the tables and the warning will only display one repeated value at a time and that might be a problem when you are working with a 1000+ values.
Error Message:
Cannot insert duplicate key row in object 'ItemWebCategory' with unique index 'IX_StyleID_WebCategoryID'. The duplicate key value is (1109068, 99999).
Query
insert into ItemWebCategory (Style_id,WebCategoryID)
select distinct Style_id,WebCategoryID = '99999'
from ItemCategory
where style_id in ('1109068','168175', '68435', '545457', '69189')
Question
How can I modify the query so it may skip/exclude all repeating values and only insert the values that do no exist on the table?
Try something like this:
INSERT INTO ItemWebCategory ( Style_id, WebCategoryID )
SELECT DISTINCT
Style_id,
'99999' AS WebCategoryID
FROM ItemCategory WHERE Style_id NOT IN (
SELECT Style_id FROM ItemWebCategory
);
The NOT IN excludes any Style_id values that already exist in ItemWebCategory.
You have two straight-forward options:
NOT EXISTS
insert into ItemWebCategory (Style_id,WebCategoryID)
select distinct Style_id,WebCategoryID = '99999'
from ItemCategory ic
where style_id in ('1109068','168175', '68435', '545457', '69189')
AND NOT EXISTS (SELECT 1
FROM ItemWebCategory iwc
WHERE ic.Style_id = iwc.Style_id
);
EXCEPT
insert into ItemWebCategory (Style_id,WebCategoryID)
select Style_id,WebCategoryID = '99999'
from ItemCategory
where style_id in ('1109068','168175', '68435', '545457', '69189')
EXCEPT
SELECT Style_id
FROM ItemWebCategory;
Now there's no need for DISTINCT because EXCEPT implies DISTINCT
One more useful option is a MERGE. This has performance benefits due to Halloween Protection (an entire subject in itself) as explained by Paul White:
MERGE ItemWebCategory AS target
USING (
select Style_id, WebCategoryID = '99999'
from ItemCategory
where style_id in ('1109068','168175', '68435', '545457', '69189')
) AS source
ON target.Style_id = source.Style_id
WHEN NOT MATCHED THEN INSERT
(Style_id, WebCategoryID)
VALUES (source.Style_id, source.WebCategoryID);
I am trying to insert into 3 columns. The first columns needs an entry from another table, the second columns just needs a value and the third is NULL. So far I have this:
INSERT INTO PAT_CARAC ( NO_PATIENT, NO_CARACTE, DATEEXPIRA)
SELECT pp.NO_PATIENT,'16', NULL
FROM PAT_PATIENT pp
INNER JOIN PAT_CARAC pc ON pp.NO_PATIENT = pc.NO_PATIENT
WHERE pp.NO_CLINIQUE = 2;
I keep getting a PRIMARY or UNIQUE KEY constraint. Any help would be very much appreciated. Thanks!
Most probably your PAT_CARAC.NO_PATIENT field is primary key and your query is generating duplicate values
although you can try
INSERT INTO PAT_CARAC ( NO_PATIENT, NO_CARACTE, DATEEXPIRA)
SELECT DISTINCT pp.NO_PATIENT,'16', NULL
FROM PAT_PATIENT pp INNER JOIN PAT_CARAC pc ON pp.NO_PATIENT = pc.NO_PATIENT WHERE pp.NO_CLINIQUE = 2;
I have huge amount of data structured in two excel sheets with the following columns:
EXCEL DATA
Sheet1 [pod, client, address, ...etc] -one record per [pod]
Sheet2 [pod, pointofmeasure, typepct, ...etc] -one-to-many records per [pod]
-relationship is between sheet1.pod and sheet2.pod (one-to-many relationship)
I need a sql to insert data from that excel sheets into a access database with the following tables structure:
ACCESS DATABASE
Table1 [id, pod, client, address, ...etc]
Table2 [id, pod_id, pod, pointofmeasure, typepct, ...etc]
Where table2.pod_id = table1.id
Can be do it in one sql insert?
I came up with this mass insert...
cn.Open scn
ssql = "INSERT INTO table1 (pod, client, address, ...etc) "
ssql = ssql & "SELECT * FROM [Excel 8.0;HDR=YES;DATABASE=" & dbWb & "].[sheet1$]"
cn.Execute ssql, cAffectedRows
cn.Close
Now how the hell i get id's to insert data to table2 ?
Assuming your pod-column in Table 1 is unique, you have to insert, select again with condition SELECT id FROM table1 WHERE pod = 'myCurrentPod' and there is your ID.
If pod is NOT unique and even pod with other known values is not unique, there is no chance to do it like that.
If pod with other known values is unique, you can expand the upper statement with more Conditions.
In all Cases, you cannot do a mass-Insert, but insert one Row from sheet1, insert linked rows from sheet2, next sheet1-row and so on.
If you can design the tables, you should not go with an autoincrement-ID, but with an application-set-ID. Or, if your values in pod are really unique, use this as pk.
It can be done in one insert when your columns are named correctly (i.e. each attribute is uniquely and consistently named throughout the schema) and foreign keys are set up as expected.
Here's a quick sketch using SQL DDL for Access's ANSI-92 Query Mode (you can create the same objects using the Access UI):
CREATE TABLE TableA
( ID IDENTITY NOT NULL UNIQUE,
a_col INTEGER NOT NULL );
CREATE TABLE TableB
( ID INTEGER NOT NULL UNIQUE
REFERENCES TableA ( ID ),
b_col INTEGER NOT NULL );
CREATE VIEW TestAB
( a_ID, a_col, b_ID, b_col ) AS
SELECT A1.ID, A1.a_col, B1.ID, B1.b_col
FROM TableA AS A1
INNER JOIN TableB AS B1 ON A1.ID = B1.ID;
If you then insert via the view, omitting the ID column (thus allowing it to be auto-generated) like this:
INSERT INTO TestAB ( a_col, b_col ) VALUES ( 55, 99 );
then a row will be inserted into each table for the single SQL command.
That said, it doesn't look like you have been strict enough when naming your attributes e.g. Table1.id changes name to pod_id in Table2 and id is not unique in your schema.
i found a this...
INSERT INTO [table1] ([data])
OUTPUT [inserted].[id], [external_table].[col2]
INTO [table2] SELECT [col1]
FROM [external_table]
and on last SELECT ... to do a JOIN between sheets to retrive all the data?
It's working that way?
I am trying to make exact copies of data in SQL, with new clientIDs, but keep the existing data in the old client as well. I will be inserting the data into a table with an auto incrementing integer primary key ID. I need to retain the ID's of the Old records and the new records together so I can continue using this mapping as I copy the different table data so I can maintain relationships.
At this point I have the following:
INSERT INTO [dbo].[Driver]
OUTPUT inserted.ID
inserted.Name
inserted.ClientID
SELECT Name,
1234 AS clientID
FROM dbo.Driver
I am wondering if there is a way to also select the old ID of the driver in the Output so I can then insert all of this into a holding table using the OUTPUT. So I need to end up with the following after I perform the insert into the dbo.Driver table so I can also insert these values into a temp table:
NewID
OldID
Name
ClientID
At this point I don't know of a way to pull the Original ID from the original record.
I ended up using MERGE INTO to keep track of the old ID as per the following SO post:
How to use OUTPUT to capture new and old ID?
you can try...
INSERT INTO dbo.Driver (oldID, Name, clientID)
SELECT
B.ID,
A.Name,
1234 AS clientID
FROM dbo.Driver A
LEFT JOIN dbo.Driver B ON A.Name = B.Name AND A.clientID = b.clientID
or maybe just
INSERT INTO dbo.Driver (oldID, Name, clientID)
SELECT
ID,
Name,
1234 AS clientID
FROM dbo.Drive