I am trying to delete the records in 2 related tables. The 'child' table has a field called [SETA],
I want to delete all the records in this table that contain the same info, as well all the fields in the parent table that is related to this table. They share the [ID] field as key. This is my code:
Code:
DELETE FROM Student a full outer JOIN Qualification b on a.[ID] =b.[ID] WHERE b.[SETA] = @SETA
I have around 3 tables having around 20 to 30gb of data. My table A related to table B by a FK and same way table B related to table C by FK. I would like to delete all rows satisfying certain condition from table A and all corresponding related records from table B and C. I have created a query to delete the grandchild first, followed by child table and finally parent. I have used inner join in my delete query. As you all know, inner join delete operations, are going to be extremely resource Intensive especially on bigger tables.
What is the best approach to delete all these rows? There are many constraints, triggers on these tables. Also, there might be some FK relations to other tables as well.
Hi,
I have 3 tables:
Employees with the fields:idEmployee and employeeName
Roles with the fields:idRole and roleName.
An employee can have one or many roles.
I created the table EmployeeRoles with the fields: id,idEmployee,idRole.
idEmployee and idRole are foreign keys.
I want to insert a new employee into Employees table, but I have to insert idEmployee field into EmployeeRoles table.
How can I do this?
Thanks
Terminology question:Is there a term for a set of records related directly or indirectly by keyvalue in several tables? For example, a single invoice record and its lineitem records -or- a single customer, the customer's orders, the order linesfor those orders, the customer's invoices, and the invoice lines for thoseinvoices.I'm thinking the term might be graph, but I'm not at all certain of this.Thanks,Steve J
View 17 Replies View RelatedI need to delete records from a table (Table1) which has a foreign key column in a related table (Table2).
Table1 columns are: table1Id; Name. Table2 columns include Table2.table1Id which is the foreign key to Table1.
What is the syntax to delete records from Table1 using Table1.Name='some name' and remove any records in Table2 that have Table2.table1Id equal to Table1.table1Id?
Hello,
I have the following problem:
2 tables: both have the same pk values.
one table must be deleted based on a filter (I mean the table is not delete completely but only some records), I would like to delete same records in the second table.
for ex:
table 1: pk: 1,2,3,4,5
table 2: pk: 1,2,3,4,5
table 1: deleting 1,2, 3 thus also in table 2 pk: 1,2,3 must be deleted.
At the and of process Table1 and Table2 must have the same records (always also in the case of failure, errors and so on ).
The target is avoid using triggers.
OUTPUT is not useful because it writes what is deleted (or may be useful but how to use it?).
How can I do?
Thank
Hello, Everyone
I had 2 tables contain data:
1) old_data: 601,195 records
firstname
lastname
address
city
state
zip
zip4
2) current_data: 410,185 records
firstname
lastname
address
city
state
zip
zip4
3)Questions: How I write a query make to delete records? From table 'old_data' delete match records reference to table 'current_data' and keep the remain good records are from 'current_data' table.
****Here's below my test query that came up with if there are any error and please provide me any suggestion or new query. Very important task ....Thanks you to all.
/*******
Delete current_data
From old_data Cross Join current_data
Where old_data.FirstName = current_data.FirstName and old_data.LastName = current_data.LastName
and old_data.Address = current_data.Address
********/
RV
Hi All,I've the following table with a PK defined on an IDENTITY column(INSERT_SEQ):CREATE TABLE MYDATA (MID NUMERIC(19,0) NOT NULL,MYVALUE FLOAT NOT NULL,TIMEKEY INTEGER NOT NULL,TIMEKEY_DTTM DATETIME NULL,IID NUMERIC(19,0) NOT NULL,EID NUMERIC(19,0) NOT NULL,INSERT_SEQ NUMERIC(19,0) IDENTITY(1,1) NOT NULL)GOALTER TABLE MYDATAADD CONSTRAINT PK_MYDATAPRIMARY KEY (INSERT_SEQ)GOThe TIMEKEY_DTTM field is generated, from the value actually insertedinto theTIMEKEY field, by the following trigger:CREATE TRIGGER TIMEKEY1ON MYDATAFOR INSERT ASBEGINDECLARE @M_TIMEKEY_DTTM DATETIMESELECT @M_TIMEKEY_DTTM = DATEADD(SECOND, INS.TIMEKEY +EP.GMT_OFFSET * 0 ,'1970-01-01 00:00:00.000')FROM INSERTED INS, LOCATIONINFO EPWHERE INS.EID = EP.EIDUPDATE MYDATASET TIMEKEY_DTTM = @M_TIMEKEY_DTTMFROM INSERTED INS, MYDATA MDWHERE MD.INSERT_SEQ = INS.INSERT_SEQENDGOThere is also a composite, non unique, index defined on thetuple:(MID,IID,TIMEKEY,EID)CREATE INDEX IX_METDATA ON MYDATA (MID,IID,TIMEKEY,EID)GOAs a consequence of an application design change, I would also changethis index to be UNIQUE, but when I try to drop and create it I get anerror, because the tables stores some duplicated rows...In order to succesfully upgrade the index definition, I wrote some DMLstaementsto lookup and remove the duplicated rows, keeping only the firstrecord inserted, i.e. the one with the lowest INSERT_SEQ:---- This table stores then umber of duplicated records eventuallydiscovered-- into the MYDATA table; the initial value for the NUM_DUPLICATESfield is-- 0 (no duplicated record)--DROP TABLE DUPLICATESGOCREATE TABLE DUPLICATES (TABLENAME VARCHAR(17),NUM_DUPLICATES NUMERIC(19,0) )GOINSERT INTO DUPLICATES VALUES ('MYDATA',0)GOINSERT INTO DUPLICATES VALUES ('CATEGORIESDATA',0)GO---- ///////// CLEAN UP OF MYDATA TABLE--DROP TABLE TMP_MYDATAGOCREATE TABLE TMP_MYDATA (MID NUMERIC(19,0) NOT NULL,TIMEKEY INTEGER NOT NULL,IID NUMERIC(19,0) NOT NULL,EID NUMERIC(19,0) NOT NULL,INSERT_SEQ NUMERIC(19,0) )GO---- Insert into the TMP_MYDATA table all the duplicated records for-- the tuple (MID,IID,TIMEKEY,EID) and NULL for the INSERT_SEQ field--INSERT INTO TMP_MYDATA (MID,IID,TIMEKEY,EID)SELECT MID,IID,TIMEKEY,EIDFROM MYDATAGROUP BY MID,IID,TIMEKEY,EIDHAVING COUNT(*)>1GO---- Updates the INSERT_SEQ field to the lowest value in the group-- of duplicated records--UPDATE TMP_MYDATASET TMP_MYDATA.INSERT_SEQ = (SELECT MIN(INSERT_SEQ)FROM MYDATAWHERE TMP_MYDATA.MID = MYDATA.MID ANDTMP_MYDATA.IID = MYDATA.IID ANDTMP_MYDATA.TIMEKEY = MYDATA.TIMEKEY ANDTMP_MYDATA.EID = MYDATA.EID )GO---- Updates the value of NUM_DUPLICATES for the MYDATA table.--UPDATE DUPLICATESSET NUM_DUPLICATES = (SELECT COUNT(*) FROM TMP_MYDATA)WHERE TABLENAME = 'MYDATA'GO---- Delete from the MYDATA table all the duplicated records,-- keeping only the row with the lowest INSERT_SEQ-- The delete is performed only if there are duplicated recors;-- this is achieved using a "short circuit" AND on the number ofrecords-- stored into the NUM_DUPLICATES field of the DUPLICATES table for-- the MYDATA table...--DELETE FROM MYDATAWHERE ( SELECT NUM_DUPLICATES FROM DUPLICATES WHERE TABLENAME ='MYDATA') > 0 ANDEXISTS ( SELECT 1FROM TMP_MYDATAWHERE MYDATA.MID = TMP_MYDATA.MID ANDMYDATA.IID = TMP_MYDATA.IID ANDMYDATA.TIMEKEY = TMP_MYDATA.TIMEKEY ANDMYDATA.EID = TMP_MYDATA.EID ANDMYDATA.INSERT_SEQ > TMP_MYDATA.INSERT_SEQ )GOThis tecnique works fine on a normal table (1M recs) but is not veryperformanton huge tables (>10M records)!Do you know a better way to achieve the task of removing all theduplicates records, preserving the lowest INSERT_SEQ betwee theduplicates and also preserving the sequence seed, so that a new recordinserted at time t1>t0 is enumerated with an INSERT_SEQ|t1 >max(INSERT_SEQ)|t0 ?Thanks a lot for your help!PatrizioPS. sorry for such a large post!
View 1 Replies View RelatedI'm kinda embarrased, it's been quite awhile since I've played with SQL or Access but here's my brain fart. I need to open an access DB by the name of eHomes. Inside there are two tables AD_IMAGE & PROPERTY. Property is the main table and stores most of the info. It has a field in it called AD_ID and others except for the image file name. The AD_IMAGE table just keeps the image file name and has 3 fields: ID - AD_ID - & Image1. The problem is when the ad is deleted from the property table the AD_IMAGE table record referring to the PROPERTY.AD_ID doen't get deleted. So, I just want the AD_IMAGE table cleaned up to match what's active in the PROPERTY table using the common AD_ID fields in both tables.
Thanks
Im trying to delete duplicate records from the output of the query below, if they also meet certain conditions ie 'different address type' then I would merge the records. From the following query how do I go about achieving one and/or the other from either the output, or as an extension of the query itself?
SELECT
a1z103acno AccountNumber
, a1z103frnm FirstName
, a1z103lanm LastName
, a1z103ornm OrgName
, a3z103adr1 AddressLine1
, A3z103city City
, A3z103st State
[code]...
Hi, I have had this problem for a while and have not been able solve it.
What im looking at doing is looping thru my patient table and trying to organise the patients in to there admission sequence, so when patient "A" comes in and is treated at my hospital and is discharged and admitted to another Hospital within one day then patient "A" will get a code of 1 being there first admission.
then if patient "A" is admitted again but there admission date is greater than one day they get a code of 2 being for there second admission but will need to loop thru table looking for other admissions and discharges.
The table name is Adm_disc_Match_tbl
Basically what i have 4 fields.
Index_key = which is the patient common link (text)
ur_episode = this wil change for each Hospital (text)
Admission_datetime = patient admission date and time (datetime)
Discharge_datetime = patient discharge date and time (datetime)
example of data
Code: ( text )
Index_key,ur_episode,Admission_datetime,discharge_ datetime
HERBERT-7/1929,513884-1686900,4/07/2006 10:58,17/07/2006 13:37
HERBERT-7/1929,C023092-1698859,17/07/2006 13:20,24/07/2006 0:30
ELSIE-5/1916,G148445-1720874,8/08/2006 11:00,30/08/2006 10:00
STANISLAWA-3/1918 ,G119981-1720045,8/08/2006 13:01,22/08/2006 12:13
FREDA-11/1925,183772-1998910,27/03/2007 9:53,3/04/2007 11:06
FREDA-11/1925,G147858-2007408,3/04/2007 10:49,26/04/2007 12:39
FREDA-11/1925,183772-2037727,28/04/2007 17:05,9/05/2007 11:41
FREDA-11/1925,G147858-2052082,9/05/2007 12:00,25/05/2007 11:17
If anyone could help it would be much appreciated.
Hi thanks for looking at my question
Using sqlServer management studio 2005
My Tables are something like this:
--Table 1 "Employee"
CREATE TABLE [MyCompany].[Employee](
[EmployeeGID] [int] IDENTITY(1,1) NOT NULL,
[BranchFID] [int] NOT NULL,
[FirstName] [varchar](50) NOT NULL,
[MiddleName] [varchar](50) NOT NULL,
[LastName] [varchar](50) NOT NULL,
CONSTRAINT [PK_Employee] PRIMARY KEY CLUSTERED
(
[EmployeeGID]
)
GO
ALTER TABLE [MyCompany].[Employee]
WITH CHECK ADD CONSTRAINT [FK_Employee_BranchFID]
FOREIGN KEY([BranchFID])
REFERENCES [myCompany].[Branch] ([BranchGID])
GO
ALTER TABLE [MyCompany].[Employee] CHECK CONSTRAINT [FK_Employee_BranchFID]
-- Table 2 "Branch"
CREATE TABLE [Mycompany].[Branch](
[BranchGID] [int] IDENTITY(1,1) NOT NULL,
[BranchName] [varchar](50) NOT NULL,
[City] [varchar](50) NOT NULL,
[ManagerFID] [int] NOT NULL,
CONSTRAINT [PK_Branch] PRIMARY KEY CLUSTERED
(
[BranchGID]
)
GO
ALTER TABLE [MyCompany].[Branch]
WITH CHECK ADD CONSTRAINT [FK_Branch_ManagerFID]
FOREIGN KEY([ManagerFID])
REFERENCES [MyCompany].[Employee] ([EmployeeGID])
GO
ALTER TABLE [MyCompany].[Branch]
CHECK CONSTRAINT [FK_Branch_ManagerFID]
--Foreign IDs = FID
--generated IDs = GID
Then I try a simple single row DELETE
DELETE FROM MyCompany.Employee
WHERE EmployeeGID= 39
Well this might look like a very basic error:
I get this Error after trying to delete something from Table €œEmployee€?
The DELETE statement conflicted with the
REFERENCE constraint "FK_Branch_ManagerFID".
The conflict occurred in database "MyDatabase",
table "myCompany.Branch", column 'ManagerFID'.
Yes what I€™ve been doing is to deactivate the foreign key constraint, in both tables when performing these kinds of operations, same thing if I try to delete a €œBranch€? entry, basically each entry in €œbranch€? and €œEmployee€? is child of each other which makes things more complicated.
My question is, is there a simple way to overcome this obstacle without having to deactivate the foreign key constraints every time or a good way to prevent this from happening in the first place? Is this when I have to use €œON DELETE CASCADE€? or something?
Thanks
Hi
I wanted to do a delete rows from a group of table. These tables have a common column UserID. I heard that there is something called ondelete cascade. But I don't know how to set it up and utilise it. Could someone tell me how to do it. Or point me to a tutorial which shows how to do it.
Thanks
Hi,I was wondering if it was possible to build a query that will include acolumn that will provide a count related records from another table.Although there is a way to achieve this through programming in thefront end, I would like to know if it possible to achieve the samething through a SQL statement alone.For example, say you have two related tables, Invoices andInvoiceItems. InvoiceID is the primary key of Invoices.Invoices tableInvoiceID PO_Num CompanyID-------------------------------1 37989 32 87302 43 78942 3InvoiceItems tableItemID InvoiceID PartNo Qty---------------------------------------1 1 ABA 32 1 ASLKDJ 23 1 9LF 84 2 IEPOW 185 2 EIWPD 36 2 DSSIO 17 2 EIWP 58 2 DC93 49 3 85LS0 8Then a query that has the Invoices table plus a count of InvoiceItemsfor each InvoiceID would generate this:InvoiceID PO_Num CompanyID ItemCount-------------------------------------------------1 37989 3 32 87302 4 53 78942 3 1Does anyone have any ideas how this would be done?Thank you.
View 1 Replies View RelatedI am using Master Data Service for couple of months now. I can load, update, merge and soft delete data in MDS. Occasionally we even have to hard delete data from MDS. If we keep on soft deleting records in a MDS table eventually there will be huge number of soft deleted records. Is there an easy way to hard delete all the soft deleted records from all MDS tables in a specific Model.
View 18 Replies View RelatedWhat is the simplist/correct way to delete multiple records from multiple tables. Any help appreciated. Thanks! (Yes, I'm totally new to this.)
delete dbo.tblcase
where dbo.tblcase.case_id in ('299760', '299757', '299739', '299732', '299902',
'299901', '299897', '299894', '299873', '299872', '299870', '299865', '299860',
'299858', '299854', '299846', '299838', '299834', '299821', '299813', '299803')
delete dbo.tblcaseclient
where dbo.tblcaseclient.case_id in ('299760', '299757', '299739', '299732', '299902',
'299901', '299897', '299894', '299873', '299872', '299870', '299865', '299860',
'299858', '299854', '299846', '299838', '299834', '299821', '299813', '299803')
delete dbo.tblcaseinformation
where dbo.tblcaseinformation.case_id in ('299760', '299757', '299739', '299732', '299902',
'299901', '299897', '299894', '299873', '299872', '299870', '299865', '299860',
'299858', '299854', '299846', '299838', '299834', '299821', '299813', '299803')
delete dbo.tblcaselawyer
where dbo.tblcaselawyer.case_id in ('299760', '299757', '299739', '299732', '299902',
'299901', '299897', '299894', '299873', '299872', '299870', '299865', '299860',
'299858', '299854', '299846', '299838', '299834', '299821', '299813', '299803')
delete dbo.tblcaseprosecutor
where dbo.tblcaseprosecutor.case_id in ('299760', '299757', '299739', '299732', '299902',
'299901', '299897', '299894', '299873', '299872', '299870', '299865', '299860',
'299858', '299854', '299846', '299838', '299834', '299821', '299813', '299803')
Morning chucky eggsThis is duplicated over at SQLTeam...except I've moved on a bit so my question to you is different:http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=103798SQL 2k5I have a standard hierarchy in an adjacency table modelling business units in an organisation. I have another table associating people with (one single) business unit. I need to return all the people in each business unit in a cumulative manner i.e. a unit will include all people assigned to that unit and assigned to all child units too.Below is1) Set up code (in red)2) Initial query that failed on last data load due to the nature of the data changing and me not considering the ramifications of my initial solution properly3) My new soulution.My question is - is there a better way to accomplish this? I don't rate my code that highly and could do with this being as efficient as possible as at present I can't see it scaling to larger and larger data volumes all that well.USE tempdbgo----------------------------------------------------------------- Set up the structure & data...---------------------------------------------------------------CREATE TABLE dbo.org ( unit_code VARCHAR(10) NOT NULL , parent_code VARCHAR(10) NULL , CONSTRAINT pk_org PRIMARY KEY CLUSTERED (unit_code) WITH (FILLFACTOR = 100) )GO CREATE TABLE dbo.org_peeps ( unit_code VARCHAR(10) NOT NULL , person_code INT NOT NULL , CONSTRAINT pk_org_peeps PRIMARY KEY CLUSTERED (unit_code, person_code) WITH (FILLFACTOR = 100) , CONSTRAINT fk_org_peeps_other_org_peeps FOREIGN KEY (unit_code) REFERENCES dbo.org (unit_code) )GO CREATE VIEW dbo.org_peeps_parents--WITH SCHEMABINDINGAS SELECT org.unit_code , org.parent_code , org_peeps.person_code FROM dbo.org LEFT OUTER JOIN dbo.org_peeps ON org_peeps.unit_code = org.unit_codeGO INSERT INTO dbo.org (unit_code, parent_code)SELECT 'a', 'y' UNION ALLSELECT 'b', 'y' UNION ALLSELECT 'c', 'z' UNION ALLSELECT 'y', 'z' UNION ALLSELECT 'z', NULL--Insert people data (NOTE - the people are in units at the BOTTOM of the structure only)INSERT INTO dbo.org_peeps (unit_code, person_code)SELECT 'a', 1 UNION ALLSELECT 'c', 3 UNION ALL--These data go into intermediate levels of the organisation...SELECT 'y', 4 UNION ALLSELECT 'y', 5 UNION ALLSELECT 'y', 6---------------------------------------------------------------SELECT 'Original query. Because there is data in the intermediate tables --> ' + 'duplicate outputs....'---------------------------------------------------------------;WITH materialised_pathsAS ( SELECT unit_code , parent_code , person_code , unit_path = '/' + CAST(unit_code AS VARCHAR(MAX)) + '/' FROM dbo.org_peeps_parents WHERE parent_code IS NULL UNION ALL SELECT all_people.unit_code , all_people.parent_code , all_people.person_code , mp.unit_path + CAST(all_people.unit_code AS VARCHAR(MAX)) + '/' FROM dbo.org_peeps_parents AS all_people INNER JOIN materialised_paths AS mp ON mp.unit_code = all_people.parent_code )SELECT parents.unit_code , children.person_codeFROM materialised_paths AS childrenCROSS APPLY --Correlated derived table - get the child records per unit ( SELECT unit_code , parent_code FROM dbo.org AS parents_sub WHERE children.unit_path LIKE '%/' + parents_sub.unit_code + '/%' ) AS parentsWHERE children.person_code IS NOT NULLORDER BY person_code , unit_code-----------------------------------------------------------------SELECT 'This query returns the correct results but man it is ugly. '+ 'Can it be refined optimised?'-----------------------------------------------------------------;WITH materialised_pathsAS ( SELECT unit_code , parent_code , unit_path = '/' + CAST(unit_code AS VARCHAR(MAX)) + '/' FROM dbo.org WHERE parent_code IS NULL UNION ALL SELECT all_orgs.unit_code , all_orgs.parent_code , mp.unit_path + CAST(all_orgs.unit_code AS VARCHAR(MAX)) + '/' FROM dbo.org AS all_orgs INNER JOIN materialised_paths AS mp ON mp.unit_code = all_orgs.parent_code )SELECT all_orgs.unit_code , org_peeps.person_codeFROM dbo.org_peepsINNER JOIN ( SELECT org.unit_code , mp.unit_path FROM materialised_paths AS mp CROSS APPLY ( SELECT unit_code , parent_code FROM dbo.org WHERE mp.unit_path LIKE '%/' + org.unit_code + '/%' ) AS org ) AS all_orgsON all_orgs.unit_path LIKE '%/' + org_peeps.unit_code + '/'ORDER BY person_code , all_orgs.unit_code--Clean upIF EXISTS (SELECT NULL FROM sys.views WHERE object_id = OBJECT_ID('dbo.org_peeps_parents')) BEGIN DROP VIEW dbo.org_peeps_parentsENDIF EXISTS (SELECT NULL FROM sys.tables WHERE object_id = OBJECT_ID('dbo.org_peeps')) BEGIN DROP TABLE dbo.org_peepsENDIF EXISTS (SELECT NULL FROM sys.tables WHERE object_id = OBJECT_ID('dbo.org')) BEGIN DROP TABLE dbo.orgENDAs ever kudos and lavish thanks to anyone that can help :DOh - I nearly forgot - accounting for the Rudy clause - desired output:unit_code person_code---------- -----------a 1y 1z 1c 3z 3y 4z 4y 5z 5y 6z 6
View 14 Replies View RelatedOh hai
This is closely related to this problem where Ryan & Peter helped me out loads (thanks again guys):
http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=101989
I now have a slightly different problem. Instead of returning the cumulative counts of people related to a business unit in the hierarchy I now need to return the actual people records. I had some code, derived from the above, that worked fine until I loaded some new data. It took a while but eventually I figured out the (now obvious) reason for the error. I have tried several changes to the query and not got anywhere. Please could someone have a look and see if you can suggest the required alteration(s)?
USE tempdb
go
---------------------------------------------------------------
--Set up the structure & data...
---------------------------------------------------------------
CREATE TABLE dbo.org
(
unit_codeVARCHAR(10)NOT NULL
, parent_codeVARCHAR(10)NULL
, CONSTRAINT pk_orgPRIMARY KEY CLUSTERED (unit_code) WITH (FILLFACTOR = 100)
)
GO
CREATE TABLE dbo.org_peeps
(
unit_codeVARCHAR(10)NOT NULL
, person_codeINTNOT NULL
, CONSTRAINT pk_org_peepsPRIMARY KEY CLUSTERED (unit_code, person_code) WITH (FILLFACTOR = 100)
, CONSTRAINT fk_org_peeps_other_org_peepsFOREIGN KEY (unit_code) REFERENCES dbo.org (unit_code)
)
GO
CREATE VIEW dbo.org_peeps_parents
--WITH SCHEMABINDING
AS
SELECT org.unit_code
, org.parent_code
, org_peeps.person_code
FROMdbo.org
LEFT OUTER JOIN
dbo.org_peeps
ONorg_peeps.unit_code= org.unit_code
GO
INSERT INTO dbo.org (unit_code, parent_code)
SELECT 'a', 'y'UNION ALL
SELECT 'b', 'y'UNION ALL
SELECT 'c', 'z'UNION ALL
SELECT 'y', 'z'UNION ALL
SELECT 'z', NULL
--Insert people data (NOTE - the people are in units at the BOTTOM of the structure only)
INSERT INTO dbo.org_peeps (unit_code, person_code)
SELECT 'a', 1UNION ALL
SELECT 'c', 3
---------------------------------------------------------------
SELECT'This works great....'
---------------------------------------------------------------
;WITHmaterialised_paths
AS
(
SELECTunit_code
, parent_code
, person_code
, unit_path= '/' + CAST(unit_code AS VARCHAR(MAX)) + '/'
FROMdbo.org_peeps_parents
WHEREparent_code IS NULL
UNION ALL
SELECTall_people.unit_code
, all_people.parent_code
, all_people.person_code
, mp.unit_path + CAST(all_people.unit_code AS VARCHAR(MAX)) + '/'
FROMdbo.org_peeps_parents AS all_people
INNER JOIN
materialised_paths AS mp
ONmp.unit_code= all_people.parent_code
)
SELECTparents.unit_code
, children.person_code
, children.unit_path
FROMmaterialised_paths AS children
CROSS APPLY--Correlated derived table - get the child records per unit
(
SELECTunit_code
, parent_code
FROMdbo.orgAS parents_sub
WHEREchildren.unit_path LIKE '%/' + parents_sub.unit_code + '/%'
) AS parents
WHEREchildren.person_code IS NOT NULL
ORDER BY person_code
, unit_code
--Add data to INTERMEDIATE levels of organisation
INSERT INTO dbo.org_peeps (unit_code, person_code)
SELECT 'y', 4UNION ALL
SELECT 'y', 5UNION ALL
SELECT 'y', 6
---------------------------------------------------------------
SELECT'Since there is now data in the intermediate tables there are ' +
'duplicate outputs....'
---------------------------------------------------------------
;WITHmaterialised_paths
AS
(
SELECTunit_code
, parent_code
, person_code
, unit_path= '/' + CAST(unit_code AS VARCHAR(MAX)) + '/'
FROMdbo.org_peeps_parents
WHEREparent_code IS NULL
UNION ALL
SELECTall_people.unit_code
, all_people.parent_code
, all_people.person_code
, mp.unit_path + CAST(all_people.unit_code AS VARCHAR(MAX)) + '/'
FROMdbo.org_peeps_parents AS all_people
INNER JOIN
materialised_paths AS mp
ONmp.unit_code= all_people.parent_code
)
SELECTparents.unit_code
, children.person_code
, children.unit_path
FROMmaterialised_paths AS children
CROSS APPLY--Correlated derived table - get the child records per unit
(
SELECTunit_code
, parent_code
FROMdbo.orgAS parents_sub
WHEREchildren.unit_path LIKE '%/' + parents_sub.unit_code + '/%'
) AS parents
WHEREchildren.person_code IS NOT NULL
ORDER BY person_code
, unit_code
---------------------------------------------------------------
SELECT'This is the output I want - but I can''t simply apply distinct - the volumes of data preclude this'
---------------------------------------------------------------
;WITHmaterialised_paths
AS
(
SELECTunit_code
, parent_code
, person_code
, unit_path= '/' + CAST(unit_code AS VARCHAR(MAX)) + '/'
FROMdbo.org_peeps_parents
WHEREparent_code IS NULL
UNION ALL
SELECTall_people.unit_code
, all_people.parent_code
, all_people.person_code
, mp.unit_path + CAST(all_people.unit_code AS VARCHAR(MAX)) + '/'
FROMdbo.org_peeps_parents AS all_people
INNER JOIN
materialised_paths AS mp
ONmp.unit_code= all_people.parent_code
)
SELECTDISTINCT
parents.unit_code
, children.person_code
, children.unit_path
FROMmaterialised_paths AS children
CROSS APPLY--Correlated derived table - get the child records per unit
(
SELECTunit_code
, parent_code
FROMdbo.orgAS parents_sub
WHEREchildren.unit_path LIKE '%/' + parents_sub.unit_code + '/%'
) AS parents
WHEREchildren.person_code IS NOT NULL
ORDER BY person_code
, unit_code
--Clean up
IF EXISTS (SELECT NULL FROM sys.views WHERE object_id = OBJECT_ID('dbo.org_peeps_parents')) BEGIN
DROP VIEW dbo.org_peeps_parents
END
IF EXISTS (SELECT NULL FROM sys.tables WHERE object_id = OBJECT_ID('dbo.org_peeps')) BEGIN
DROP TABLE dbo.org_peeps
END
IF EXISTS (SELECT NULL FROM sys.tables WHERE object_id = OBJECT_ID('dbo.org')) BEGIN
DROP TABLE dbo.org
ENDJust paste and run the code and hopefully it should be reasonably clear. If you need any further info please let me know
The problem of mine is, I have a datagrid, Which displays data from a Employee(parent) table.
Now I want to delete some records based on the user selected checkbox,only those records which has no related records in the EmployeeProject(child) can be deleted.I want to know which are all the record that cannot be deleted?
How can I achieve this?
Hi guysI'm mulling over the best way to do something and would like your input. Forgive me if this is a bit 101 - I haven't ever had to do this in SQL before!Fairly standard set up - Hierarchy table modelling the structure of an organisation.Related table associating members of staff to the hierarchy.I want to return all levels of the hierarchy and for each level I would like to know the total number of people in the level (so for a division it would be the sum of all people in the child teams).Parameters - This table will be modelling many organisations' structures - I cannot guarentee anything like "there will never be more than n levels". As such - I would strongly prefer to have something that is iterative recursive. I can change the schema to suit the method I use if necessary. Database is not transactional - I am not concerned about updating speed. SQL Server 2K5.I've tried CTE but it turns out you cannot use group by in CTEs (even in derived tables). I have not yet tried feeding it a view or similar.I have not tried nested sets, materialised paths, accumulator table - I thought I would see if there is something obvious before I start piddling around with those.Ta!
View 11 Replies View RelatedSQL Server 2005.
Schema is not fixed at this stage - small project, schema can be adapted if neccessary.
This needs to be produced in SQL Server - there is no client application.
Hi
I am really struggling to write the SQL for the following requirement and have got to the stage where I think I need someone to give me some pointers. I can't believe this is a novel requirement but I haven't had to do this before nor can find anything similar when googling.
I have a hierarchy detailing an organisation structure. Eventually the table will store many structures and these may one day be "pseudo structures" to enable really granular reporting. As such I cannot really say "there will never be more than N levels to this hierarchy". Currently I'm using a standard adjacency design. From now on I'll call the items in the table "business units".
There is a further table with a related FK declared which associates people with business units.
Requirement: Return all business units and cumulative total total of employees for each of these units (i.e. the total for each business unit will be the number of people in that unit plus the sum of the people in all the child units).
I've asked this question on dbforums but ended up a blind alley despite Peter's attempt to help. I'm starting again from scratch but feel free to review the (now dead) thread here:
http://www.dbforums.com/showthread.php?t=1629366
To summarise - I tried the CTE route but of course this evaluates the hierarchy from the top down. To fulfill the requirement, the bottom of the structure needs to be the starting point. I also tried reversing the hierarchy so that children, rather than the parent, are stored but my query fails if there are 3+ levels.
Code to reproduce problem (note - I expect that I will need to get the employee count per business unit prior to working with the hierarchy so I have flattened the schema to reflect this - I think I can handle the SQL to get the non-cumulative count per business unit ):
DECLARE @table TABLE
(
unit_codeTINYINT
, parent_codeTINYINT
, headcountINT
, PRIMARY KEY CLUSTERED (unit_code)
)
INSERT INTO @table (unit_code, parent_code, headcount)
SELECT 1, 4, 10 UNION ALL
SELECT 2, 4, 130 UNION ALL
SELECT 3, 10, 93 UNION ALL
SELECT 4, 10, 7 UNION ALL
SELECT 10, NULL, 1
Required output:
unit_codecumulative_headcount
------------------------------------
110
2130
393
4147
10241
Many thanks
I need a boost to understand how to get started on solving this SQL Query.
TicketId Seq StatusDateTime
T10001 1 2015-05-04 15:54:00.000
T10001 2 2015-05-04 16:35:00.000
T10001 3 2015-05-04 16:42:00.000
T10001 4 2015-05-05 08:19:00.000
T10002 1 2015-05-04 15:56:00.000
T10002 2 2015-05-04 15:57:00.000
I need to find the total StatusDateTime for each TicketId
I need to find the average StatusDateTime for all TicketIDs
Ex. TicketId, "T10001", has 4 records based on the Seq column.
By using this, I should be able to find the amount of time between the first Seq and the last Seq to get a total time span for Ticket.
Expanding on this, I should be able to add up all of the Ticket's calculated time spans and divide by the number of tickets to get the average time span.
HI,
I have been trying to solve the locking problem from past couple of days. Please help mee!!
Scenario:
--------------
I have a SSIS package in which 2 data flow tasks. 1st data flow task deletes records from a 5 tables and the 2nd data flow task should insert records into 1 of the five tables after the success of 1st data flow task. This scenario runs in Transacation.
The above scenrio in the 2nd data flow task hangs in runtime. It does not complete. with sp_who2 command i could see that there is an intent share lock(LK_M_IS) on the table and the status is SUSPENDED.
I dont know how to come out of this locking. Please help.
Thanks ,
Sunil
I have a table that has multiple transactions for stock items.
This table holds all records relating to items that are inducted onto the system and there movement. For each stock item i am interested in getting the drop destination, if it has one, and only when it follows the sequential order of "Inducted>OnTransport>Dropped" (this sequence isn't always the case). Also note the CreatedDate for the Inducted and OnTransport records for the valid sequences are always the same. Below is a valid sequence for a stock item so i would want to return 'Lane01' for the Destination of this occurrence of the stock item, if this item didn't have a valid drop location then destination would be blank. Also note each stock item can be inducted more than one time per-day.
I think i have managed to build the below sql but it will only do one item at a time, so would have to wrap it in a function. Is there a way of writing a set based select statement that gets all the inducted items and for the ones that do follow the "Inducted>OnTransport>Dropped" return the destination it was dropped at? I've attached scrips below:
DECLARE @StockItemID nVarchar(128)
DECLARE @CreateDate DATETIME
Set @StockItemID='8cbe17da-6079-4170-b27a-41c0d38830f6'
Set @CreateDate = CAST('2015-08-31 13:52:39.890' AS datetime)
[Code] ....
Thanks for your time,
How to calculate & save a Parent status [qcStatus varchar(30)] and Alert [alertFlag bit] in dbo.a1_qcParent
based on comparison of its Child records in dbo.a3_qcItems2Fix columns [itemComplete bit] and [alertFlag bit]
Where a1_qcParent[a1_id] = a3_qcItems2Fix[a1_ID]
- Parent CLOSED: if all children [itemComplete] are True
- Parent OPEN: if any child [itemComplete] is False
- Parent ALERT: True if any child row [alertFlag bit] is True
Using sql_Datasource in webpage, but more comfortable in sql... After-Trigger?
Can Parent columns have calculated formula referencing the child table? Please help.
Is it possible to retrieve all tables that a given one is related tovia foreign keys?
View 2 Replies View RelatedHi all,
I am trying to insert user's input from a web form into the tables. For example,
PURCHASE TABLE(PurchaseID, PurchaseNo, Date, PartID)
PART TABLE(PartID, PartDescription,MachineID)
MACHINE TABLE(MachineID, MachineName)
On the web form I have textboxes for the Purchase No., date and part description, and a drop down list for the machine name. How do I insert them into the different tables?
I've just start learning ASP.NET and I am using Web Matrix for this. The examples I've seen so far only shows how to insert into a single table.
Thanks!
I have 2 related tables I want to include in a single full text search. How would I go about setting this up?
View 1 Replies View Relatedhi this is probably a dumb question with an easy answer but does anyone know how to do this...
2 tables, one is a supplier list (id, supplier_name) and the other is an order list (id, order_name, supplier_id... etc)
basically i need to join the 2 tables together (id=supplier_id) but i need to display the results without the supplier_id and the supplier table id, only the supplier name?
do i have select only the specific fields I want? or can I exclude the supplier_id and the id from the supplier table?
Hi all. how could i join unrelated tables?
for example:
table1: employee
dcno name address telno
1 sarah philippines 111
2 john india 222
3 joy usa 333
table2: hospital
hospname location owner
hosp1 loc1 billgates
hosp2 loc2 ann
hosp3 loc3 love
hosp4 loc4 vic
table3: student
studname load
kim 10
Is it possible to join unrelated tables?
Thanks
-Ron-
Hi,
I have 2 tables with this design: one has ArticleID as primary key and multiple other fields and one has GroupID as primary key and multiple other fields. Each article can belong in multiple groups so I created a new table called articleGroups with only 2 fields: ArticleID and GroupID to show the groups associated with each article. There is a relation between this table and each of the main 2 tables. My question is, in the articleGroup table, does it make any sense to create an Index on ArticleID, GroupID or both? Since the group is needed for each article the Groups will always be queried everytime the article is queried. So, I am not sure if an index is needed?
Thank you,
Regards,
Iulian
Hello, everyone!
Please give your ideas about how to create a query from two tables, which have many-to-many relationship. For example, we have table Book and table Author and consider, that one author had wroten several books and one book had being wroten by several authors. So we have many-to-many relationship of these two tables.
Usually this sutuation resolves by maens of creating the third table AuthorBook, which consist of key fields from the Author table and key fields from the Book table. So that the Author table is the parent table to AuthorBook, and the Book table is the parent table to AuthorBook. So we have two relations one-to-many. Now the question is how to get all related values from both tables, using JOIN operation and the conjunctive table?
I would greatly appreciate any answers
I can't get my head around this:I want to select all IDs from table A that do not have a related record intable B according to some condition:Table A contains, say, Parents and table B contains Children. I want toselect all Parents that have no children called "Sally" (this is a noddyexample, reminds me of being at Uni again :) ).Any ideas?Thanks
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