Hello all,
I have a DTS package set up to import a text file on a daily basis. I need to dump the data in 2 table after 7 days of the last import .this is the code that I have
Delete From TblTemp
date(Day(-7), CurrentStamp).
But for some reason it deleting the data right after it imports it. And it doesn't delete anything out of the other table.
Thanks in advance
I have 3 tables . iwant to delete rows from all the three tables at same time using single statement.All the 3 tables have a unique column which will be supplied ny the user.
DELETE FROM T1,T2,T3 WHERE column1='1'
how do i do it.
Hi All,
So.. I'm a complete newb to SQL stuff.
I managed to find the 'Deleting Duplicate Records' from SQLTeam.com (thanks, by the way!!).. I managed to modify it for one of my tables (one of 14).
-- Add a new column
Alter table dbo.tblMyDocsSize add NewPK int NULL
go
-- populate the new Primary Key
declare @intCounter int
set @intCounter = 0
update dbo.tblMyDocsSize
SET @intCounter = NewPK = @intCounter + 1
-- ID the records to delete and get one primary key value also
-- We'll delete all but this primary key
select strComputer, strATUUser, RecCount=count(*), PktoKeep = max(NewPK)
into #dupes
from dbo.tblMyDocsSize
group by strComputer, strATUUser
having count(*) > 1
order by count(*) desc, strComputer, strATUUser
-- delete dupes except one Primary key for each dup record
deletedbo.tblMyDocsSize
fromdbo.tblMyDocsSize a join #dupes d
ond.strComputer = a.strComputer
andd.strATUUser = a.strATUUser
wherea.NewPK not in (select PKtoKeep from #dupes)
-- remove the NewPK column
ALTER TABLE dbo.tblMyDocsSize DROP COLUMN NewPK
go
drop table #dupes
Now that I've got that figured out, I need to write the same thing to fix the other 13 tables (with different column info)- and I'll need to run this daily.
Basically I've put together some vbscript that gathers inventory data and drops it into an MSDE db (sorry - goin for 'free' stuff right now). Problem is it has to run daily so that I'm sure to capture computers that turned on at different times etc which ever-increases my database 'till I bounce off the 2GB limit of MSDE.
So the question is, what would be the best way to do this? Can I put the code into a stored procedure that I can execute each day?
Thanks for your help....
I'm new to relational database concepts and designs, but what i've learned so far has been helpful. I now know how to select certain records from multiple tables using joins, etc. Now I need info on how to do complete deletes. I've tried reading articles on cascading deletes, but the people writing them are so verbose that they are confusing to understand for a beginner. I hope someone could help me with this problem.
I have sql server 2005. I use visual studio 2005. In the database I've created the following tables(with their column names):
Table 1: Classes --Columns: ClassID, ClassName
Table 2: Roster--Columns: ClassID, StudentID, Student Name
Table 3: Assignments--Columns: ClassID, AssignmentID, AssignmentName
Table 4: Scores--StudentID, AssignmentID, Score
What I can't seem to figure out is how can I delete a class (ClassID) from Classes and as a result of this one deletion, delete all students in the Roster table associated with that class, delete all assignments associated with that class, delete all scores associated with all assignments associated with that class in one DELETE sql statement.
What I tried to do in sql server management studio is set the ClassID in Classes as a primary key, then set foreign keys to the other three tables. However, also set AssignmentID in Table 4 as a foreign key to Table 3.
The stored procedure I created was
DELETE FROM Classes WHERE ClassID=@classid
I thought, since I established ClassID as a primary key in Classes, that by deleting it, it would also delete all other rows in the foreign tables that have the same value in their ClassID columns. But I get errors when I run the query. The error said:
The DELETE statement conflicted with the REFERENCE constraint "FK_Roster_Classes1". The conflict occurred in database "database", table "dbo.Roster", column 'ClassID'.
The statement has been terminated.
What are reference constraints? What are they talking about? Plus is the query correct? If not, how would I go about solving my problem. Would I have to do joins while deleting?
I thought I was doing a cascade delete. The articles I read kept insisting that cascade deletes are deletes where if you delete a record from a parent table, then the rows in the child table will also be deleted, but I get the error.
Did I approach this right? If not, please show me how, and please, please explain it like I'm a four year old.
Further, is there something else I need to do besides assigning primary keys and foreign keys?
/****** Object: StoredProcedure [dbo].[dbo.ServiceLog] Script Date: 07/18/2014 14:30:59 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER proc [dbo].[ServiceLogPurge]
-- Purge records dbo.ServiceLog older than 3 months:
-- Purge records in small portions to avoid locking production tables
-- for a long time. The process takes longer, but can co-exist with
-- normal usage of the tables.
[Code] ...
*** Getting this error below when executing the code ***
Msg 102, Level 15, State 1, Procedure ServiceLogPurge, Line 45
Incorrect syntax near 'Failed:'.
Hi
i have to delete the master table data without deleting the child table records,is there any solution for this, parent table has relation with the child table.
regards
vinod.t.v
I have a situation where deleting old records is blocking updating latest records on highly transactional table and getting timeout errors from application.
In details, I have one table called Tran_table1 in OLTP database. This Tran_table1 is highly transactional table, it will receive data for insert/update continuously
While archiving 2 years old records from Tran_table1 into Tran_table1_archive in batches(using DELETE OUTPUT INTO clause), if there is any UPDATEs on Tran_table1,these updates are getting blocked and result is timeout errors in application.
Is there any SQL Server hints to avoid blocking ..
I'm looking for a way of taking a query which returns a set of date time fields (probable maximum of 20 rows) and looping through each value to see if it exists in a separate table.
E.g.
Query 1
Select ID, Person, ProposedEvent, DayField, TimeField
from MyOptions
where person = 'me'
Table
Select Person, ExistingEvent, DayField, TimeField
from MyTimetable
where person ='me'
Loop through Query 1 and if it finds ANY matching Dayfield AND Timefield in Query/Table 2, return the ProposedEvent (just as a message, the loop could stop there), if no match a message saying all is fine can proceed to process form blah blah.
I'm essentially wanting somebody to select a bunch of events in a form, query 1 then finds all the days and times those events happen and check that none of them exist in the MyTimetable table.
I must admit I dont know all that much about SQL, which is why I hope someone can show me the light. I have a script almost finished, however I have no idea how to have it trim database entries that are older than, say, 90 days. Any ideas?
View 10 Replies View RelatedI have a table with a load of orphaned records (I know... poor design)
I'm trying to get rid of them, but I'm having a brain cramp.
I need to delete all the records from the table "Floor_Stock" that
would be returned by this select statement:
SELECT FLOOR_STOCK.PRODUCT, FLOOR_STOCK.SITE
FROM PRODUCT_MASTER INNER JOIN
FLOOR_STOCK ON PRODUCT_MASTER.PRODUCT =
FLOOR_STOCK.PRODUCT LEFT OUTER JOIN
BOD_HEADER ON FLOOR_STOCK.PRODUCT =
BOD_HEADER.PRODUCT AND FLOOR_STOCK.SITE =
BOD_HEADER.SITE
WHERE (BOD_HEADER.BOD_INDEX IS NULL) AND
(PRODUCT_MASTER.PROD_TYPE IN ('f', 'n', 'k', 'b', 'l', 's'))
I was thinking along the lines of:
DELETE FROM FLOOR_STOCK INNER JOIN
(SELECT FLOOR_STOCK. PRODUCT, FLOOR_STOCK.SITE
FROM PRODUCT_MASTER INNER JOIN
FLOOR_STOCK ON PRODUCT_MASTER. PRODUCT =
FLOOR_STOCK.PRODUCT
LEFT OUTER JOIN BOD_HEADER ON FLOOR_STOCK. PRODUCT =
BOD_HEADER. PRODUCT AND FLOOR_STOCK.SITE = BOD_HEADER.SITE
WHERE (BOD_HEADER.BOD_INDEX IS NULL) AND
(PRODUCT_MASTER.PROD_TYPE IN ('f', 'n', 'k', 'b', 'l', 's'))) F ON
FLOOR_STOCK. PRODUCT = F. PRODUCT
AND FLOOR_STOCK.SITE = F.SITE
... but Sql Server just laughs at me: "Incorrect Syntax near the keyword INNER"
How do I delete one record from one table and cascade down all related tables?
Mike B
Hey all,
Here is the scenario. I'm working with two tables:
Contact1
Conthist
Contact1 contains basic contact information and conthist contains history records for those contacts. Conthist can hold many records related to a single contact1 record.
The link between the two tables is a column called accountno.
I'm trying to delete any records in conthist that have an accountno that does not exist in contact1. The queries that I've tried keep returning conthist records that do actually have a matching accountno.
Any help would be appreciated.
Thanks,
Tony
Whenever I try to delete records from a table joined to another table, like so:
DELETE [tblTransaction Detail Local] FROM [tblTransaction Detail Local], [tblTransaction Header] WHERE ([tblTransaction Detail Local].[Transaction ID] = [tblTransaction Header].[Transaction ID]) AND ([tblTransaction Header].[Computer ID] = 3)
I get the error:
Major Error 0x80040E14, Minor Error 25501
> DELETE [tblTransaction Detail Local] FROM [tblTransaction Detail Local], [tblTransaction Header] WHERE ([tblTransaction Detail Local].[Transaction ID] = [tblTransaction Header].[Transaction ID]) AND ([tblTransaction Header].[Computer ID] = 3)
There was an error parsing the query. [ Token line number = 1,Token line offset = 38,Token in error = FROM ]
This is an SQL CE database, and SQL Server Management Studio. Any ideas?
I have a couple SQL tables that have been appended to daily over the last two years. There is now about 50,000,000 records in the table. Does anyone know the fastest way to delete records before a certain date to shorten these tables? Delete queries and everything else I've tried is taking way too long.
View 13 Replies View RelatedI am trying to delet a row duing run-time but everytime i go to save the program I get an error message saying: "Update Requires a valid DeleteCommand when passed DataRow collection with deleted row.
Anyone any ideas?
Apparently, deleting 7,000,000 records from a table of about 20,000,000 is not advisable. We were able to take orders at 8:00AM, but not at 7:59.
So, what's the best way of going about deleting a large number of records? Pretty basic lookup table, no relationships with other tables, 12 or so address-type fields, 4 or 5 simple indexes. I can take it down for a weekend or night, if needed.
DTS the ones to keep to another table, drop the old and rename the new table?
Bulk copy out, truncate and bring back in?
DTS to text, truncate and import back?
Other ways?
Never worked with such a large table and need a little experienced guidance.
Thanks for the help
My Web Host does not provide administrative privilages to the SQL server I have access to. I would like to delete tens of thousands of records from two of my tables without writing to the Transaction Log. Is what I'm trying to do is delete these records quickly without utilizing any of the alotted space my web host has set aside for my transaction log (they give me 50 mb and I go way over that when I run a DELETE statement)
What is the best way to do this?
I need a sql statement to delete duplicate records.
I have a college table with all colleges in the nation.
I noticed that all of the colleges were listed twice.
How do I delete all of the duplicate records.
Here is my table.
Colleges
-------------------
schoolID - smallint NOT NULL,
schoolName - varchar(60) NULL
Can someone help me out with the sql statement???
I'm running SQL Server 6.5.
- ted
Hi All,
I am having one table named MyTable and this table contains only one column MyCol. Now i m having 10 records in it and all the records are duplicate ie value is 7 for all 10 records.
It is something like this,
MyCol
7
7
7
7
7
7
7
7
7
7
Now i m trying to delete 10th record or any record then it gives me error
"Key column information is insufficient or incorrect. Too many rows were affected by update."
What should i do if i want only 4 records insted 10 records in my table?
How do i delete the 6 records from table?
Plz help me.
Regards,
Shailesh
I have a problem where records in underlying tables of a dataview are being deleted (seemingly at random)
For example.
CREATE TABLE [Employee] (Id int, Name varchar(50))
CREATE TABLE [Company] (Id int, Name varchar(50))
CREATE TABLE [EmployeeCompany] (CompanyId int, EmployeeId int)
CREATE VIEW [dvEmployee]
AS
SELECT *
FROM [Employee] INNER JOIN [EmployeeCompany]
ON [Employee].[Id] = [EmployeeCompany].[EmployeeId]
CREATE TRIGGER [dvEmployeeUpdate]
ON [dbo].[dvEmployee]
INSTEAD OF UPDATE
AS
BEGIN
UPDATE EmployeeCompany
SET Status = INSERTED.Status
FROM EmployeeCompany, INSERTED
WHERE EmployeeCompany.CompanyId = INSERTED.CompanyId
AND EmployeeCompany.EmployeeId = INSERTED.EmployeeId
END
Because the column [Status] is a t-sql keyword, does the fact that the trigger contains the line "SET Status = ..." without saying "SET [Status] = ..." mean that I could lose records in the EmployeeCompany table?
Reason I'm asking is we have an already designed database that is littered with columns named the same as sql keywords (almost every table has a [Status] column, and there are many [Password] columns). When using a dataview on these tables, triggers exist that aren't putting the [] around these column names (the same as my dvEmployeeUpdate trigger above), and somehow we are seemingly randomly losing records. It is very rare, and they are getting completely deleted, and it seems to be the tables that contain the keyword columns and are used in dataviews with instead of triggers that don't put [] around the column names. Nowhere in any trigger or stored procedure is there a DELETE FROM on these tables, and the software running on the database uses only the data views, and doesn't directly access the underlying tables.
I've been going through all of the code adding the [], but my question is simply whether or not anyone has heard of this causing the deletion of any records, or whether there may be something else going on that I should be looking into?
help me out on this one.
i have 2 text boxes in my page.
user enter any number in those two text boxes.
i slect that many record randomly from my main table, and put it into two another tables.
now the problem is coming in how to delete those records which were randomly selected from main table in main table.
for eg
main table contains
srNo. UswerID
1 abcd
2 trtr
3 tret
4 yghg
5 jjhj
user enters in text box1 '2' and in text box2 `1'
so total of 3 random records are selected
and put it into two another table say
table1
sr.no UserID
2 trtr
and table2 contains
sr.no. userid
3 tret
5 jjhj
now i want to delete these records which are sr.no 2,3,5 from the main table.
how do i do it as user can enter any number in the text box.so writing multiple delete statements would not be possible.
how do i write statements or help me with logic.
gaurav writes "respected sir
here i have a question
how we can delete duplicate records through query in SQL Server
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
I have a database that is used to store a lot of data. We load the data on adaily basis, several thousand records per day. The Log file is not needed,so whats the best way to delete the records in it and reduce the sizeThanksDerrick
View 1 Replies View RelatedHi, i need the suggestion here in very familiar db situation ..i have a main table and a primary key of that table is used in many other table as foreign key.If i am deleting a record in a main table,how do i make sure that all the corresponding record in the associated tables,where that foreign key is used, gets deleted too?What are my options?Thanks
View 5 Replies View RelatedI have a function that opens a connection to an SQL database, issues a
SELECT command, and reads the records with an OleDbDataReader. As the
records are read, any that match certain criteria are deleted with a
DELETE command. Simplified example code is shown below:
Dim dbCmd As OleDb.OleDbCommand = New OleDb.OleDbCommand()
dbCmd.Connection = New OleDb.OleDbConnection(UserDbConnString)
dbCmd.CommandText = "SELECT * FROM [User] ORDER BY UserID"
dbCmd.Connection.Open()
Dim reader as OleDb.OleDbDataReader = dbCmd.ExecuteReader(CommandBehavior.CloseConnection)
While reader.Read()
If reader("SomeColumn") = SomeCalculatedValue Then
Dim dbCmd2 As OleDb.OleDbCommand = New OleDb.OleDbCommand()
dbCmd2.Connection = New OleDb.OleDbConnection(UserDbConnString)
dbCmd2.CommandText = "DELETE FROM [User] WHERE UserID = " + reader("UserID")
dbCmd2.Connection.Open()
dbCmd2.ExecuteNonQuery()
dbCmd2.Connection.Close()
End If
End While
reader.Close()
This code worked well with an MS Access database, but when I changed to
SQL Server, I get a database timeout error when attempting to do the
DELETE. I suspect the reason is that the connection the reader has open
has the record locked so it cannot be deleted.
The SQL connection string I am using is something like this:
UserDbConnString = "Provider=SQLOLEDB; Server=(Local); User ID=userid; Password=password; Database=dbname"
The connection string I used for MS Access included the property
"Mode=Share Deny None". I wonder if there is some similar way to tell
SQL Server to allow editing of records that are open for reading with
an OleDbDataReader.
Any help would be appreciated.
I have this table:
CREATE TABLE [dbo].[ACT_SECUNDARIA](
[CODACTIVIDADE] [int] IDENTITY(1,1) NOT NULL,
[CODCTB] [int] NOT NULL,
[CODCAE] [int] NULL,
[CODSECTOR] [int] NOT NULL,
[Code] ....
I want to delete every record that has more than one entry (codctb; codcae)
For example: if there are three records with the same codctb and codcae I want to delete two so that there can only be one.
How can I achieve this using t-sql?
I wrote a script to archive and delete records rom a table back in 2005 and 2009.
I can't seem to get the syntax right. Any sample script to simply archive and delete records?
This is what I have so far.
DECLARE @ArchiveDate Datetime
SET @ArchiveDate = (SELECT TOP 1 DATEPART(yyyy,Call_Date)
FROM tblCall
ORDER BY Call_Date)
--SELECT @ArchiveDate AS ArchiveDate
DECLARE @Active bit
[Code] ....
Rajarajan writes "Kindly don't ignore this as regular case.
This is peculiar.
I need to delete one of duplicate records only if they occurs consecutively.
eg.
1. 232
2. 232
3. 345
4. 567
5. 232
Here only the first record has to be delete. Kindly help me out.
Thank you.
Regards,
R.Rajarajan"
I loaded one table via SSIS and found that it contained many duplicate records (from the input source). I can create a SQL task to delete them, but I wonder if SSIS offers and task "out of the box" to delete dups?
TAI,
barkingdog
I've got a table with a unique column, "id". I've got the id values of about 300,000 records. These records need to be DELETEd from this table. Is there a way to do this in batch? I can't imagine the only way to do it is:
DELETE FROM Table WHERE id = 1 OR id = 2 OR id = 3... OR id = 300000
Sample Table
USE [Testing]
GO
/****** Object: Table [dbo].[Testing] Script Date: 4/25/2014 11:08:18 AM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
[Code] ....
It seems to work fine with one million records.
Each primary key is unique, but the begindate is non-unique, and i guess even if i use datetime2 and add nanoseconds, from what i have read, there is a chance that i could have a duplicate datetime since the date is imported via XML from multiple sources.
I use the following function (in the BLL) to delete some records:
Public Function DeleteStep4Dashboards() As Boolean
Try
adpDashboards.DeleteStep4Dashboards()Catch ex As Exception
Return False
End Try
Return True
End Function
How can I catch the sql database errors when deleting the records goes wrong.