Deleting Records From A Table In Server Database

Aug 24, 2015

I'm trying to delete some records from some tables in a SQL Server 2008 R2 database. There's a foreign key relationship between the two tables. To make things easier here's the definition of both tables:

-- Parent table
CREATE TABLE [dbo].[PharmInvInItemPackages](
[InventoryInDetailID] [int] IDENTITY(1,1) NOT NULL,
[InventoryInID] [int] NOT NULL,
[ItemPackageID] [int] NOT NULL,

[code]....

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Deleting Old Records Is Blocking Updating Latest Records On Highly Transactional Table

Mar 18, 2014

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 ..

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Deleting Records In Associated Foeign Key Table

Dec 2, 2007

Hi, 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

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Jul 6, 2006

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

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Sep 24, 2015

I have one table having three columns.This table contains lot of repeated records. I want to delete this records .

In this below example i want to delete all the records which columns id and no columns contains same values.

id no sequence
------------------------------------
35 35432 1
35 35432 2
35 35432 3
36 35432 1
35 45623 1

First three records the columns id and no contains same value. I want to delete this three records.

But in last record for id =35 and no column =45623.it is not repeated so it should not be deleted.

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Jan 27, 2006

Is there a way to delete records from table passing parameter as tablename? I won't to delete all records from a table dependent on table selected. i'm trying to do this with stored procedure...Table to delete depends on the checkbox selected.

Current code(works)
Public Function DelAll()
MZKDB = MZKHRFin
If sloption = "L" Then
sqlConn.ConnectionString = "Server=" & MZKSrv & ";Initial Catalog=" & MZKDB & ";Integrated Security=SSPI;"
ElseIf sloption = "S" Then
sqlConn.ConnectionString = "Server=" & MZKSrv & ";User id=sa;Password=" & MZKPswd & "; Initial Catalog=" & MZKDB & ";"
End If
sqlConn.Open()
sqlTrans = sqlConn.BeginTransaction()
sqlCmd.Connection = sqlConn
sqlCmd.Transaction = sqlTrans
Try
sqlCmd.CommandText = sqlStr
sqlCmd.ExecuteNonQuery()
sqlTrans.Commit()
frm2.txtResult.Text = frm2.txtResult.Text & " " & TableName & " Prior records have been deleted from the database." & vbCrLf
SetCursor()
Catch e As Exception
Try
sqlTrans.Rollback()
Catch ex As SqlException
If Not sqlTrans.Connection Is Nothing Then
frm2.txtResult.Text = frm2.txtResult.Text & " " & TableName & " An exception of type " & ex.GetType().ToString() & " was encountered while attempting to roll back the transaction." & vbCrLf
SetCursor()
End If
End Try
frm2.txtResult.Text = frm2.txtResult.Text & " " & TableName & " Records were NOT deleted from the database." & vbCrLf
SetCursor()
Finally
sqlConn.Close()
End Try
ResetID()
End Function
If cbGenFY.Checked Then
sqlStr = "DELETE FROM FIN_FiscalYear"
TableName = "dbo.FIN_FiscalYear"
DelAll()
ClearCounts()
timeStepStart = Date.Now
GenFY()
timeStepStop = Date.Now

DispOneCounts()
End If
If cbGenFund.Checked Then
sqlStr = "DELETE FROM FIN_Fund"
TableName = "dbo.FIN_Fund"
DelAll()
ClearCounts()
timeStepStart = Date.Now
GenFund()
timeStepStop = Date.Now
DispOneCounts()
End If
If cbGenFunc.Checked Then
sqlStr = "DELETE FROM FIN_Function"
TableName = "dbo.FIN_Function"
DelAll()
ClearCounts()
timeStepStart = Date.Now
GenFunc()
timeStepStop = Date.Now
DispOneCounts()

End If
If cbGenObject.Checked Then
sqlStr = "DELETE FROM FIN_Object"
TableName = "dbo.FIN_Object"
DelAll()
ClearCounts()
timeStepStart = Date.Now
GenObject()
timeStepStop = Date.Now
DispOneCounts()
End If
If cbGenCenter.Checked Then
sqlStr = "DELETE FROM FIN_Center"
TableName = "dbo.FIN_Center"
DelAll()
ClearCounts()
timeStepStart = Date.Now
GenCenter()
timeStepStop = Date.Now
DispOneCounts()
End If
If cbGenProject.Checked Then
sqlStr = "DELETE FROM FIN_CodeBook"
TableName = "dbo.FIN_CodeBook"
DelAll()
sqlStr = "DELETE FROM FIN_BudgetAccnt"
TableName = "dbo.FIN_BudgetAccnt"
DelAll()
sqlStr = "DELETE FROM FIN_Budget"
TableName = "dbo.FIN_Budget"
DelAll()
sqlStr = "DELETE FROM FIN_Project"
TableName = "dbo.FIN_Project"
DelAll()
ClearCounts()
timeStepStart = Date.Now
GenProject()
timeStepStop = Date.Now
TableName = "dbo.FIN_Project"
DispOneCounts()
End If
If cbGenProgram.Checked Then
sqlStr = "DELETE FROM FIN_Program"
TableName = "dbo.FIN_Program"
DelAll()
ClearCounts()
timeStepStart = Date.Now
GenProgram()
timeStepStop = Date.Now
DispOneCounts()
End If
If cbGenGL.Checked Then
sqlStr = "DELETE FROM FIN_gl"
TableName = "FIN_gl"
DelAll()
ClearCounts()
timeStepStart = Date.Now
GenGL()
timeStepStop = Date.Now
DispOneCounts()
End If
If cbGenRevenue.Checked Then
sqlStr = "DELETE FROM FIN_Revenue"
TableName = "FIN_Revenue"
DelAll()
ClearCounts()
timeStepStart = Date.Now
GenRevenue()
timeStepStop = Date.Now
DispOneCounts()
End If
If cbGenBank.Checked Then
sqlStr = "DELETE FROM FIN_VendorBankAccnt"
TableName = "dbo.FIN_VendorBankAccnt"
DelAll()
sqlStr = "DELETE FROM FIN_VendorBank"
TableName = "dbo.FIN_VendorBank"
DelAll()
sqlStr = "DELETE FROM FIN_bankAdd"
TableName = "dbo.FIN_bankAdd"
DelAll()
sqlStr = "DELETE FROM FIN_bankTERMS"
TableName = "dbo.FIN_bankTerms"
DelAll()
sqlStr = "DELETE FROM FIN_bank"
TableName = "dbo.FIN_bank"
DelAll()
ClearCounts()
timeStepStart = Date.Now
GenBank()
timeStepStop = Date.Now
TableName2 = "dbo.FIN_bankTERMS"
TableName3 = "dbo.FIN_BankAdd"
TableName4 = "dbo.FIN_VendorBank"
TableName5 = "dbo.FIN_VendorBankAccnt"
DispTwoCounts()
End If
If cbFinAP.Checked Then
sqlStr = "DELETE FROM FIN_Period"
TableName = "FIN_Period"
DelAll()
ClearCounts()
timeStepStart = Date.Now
GenPeriod()
timeStepStop = Date.Now
DispOneCounts()
End If

If cbFinVM.Checked Then
sqlStr = "DELETE FROM FIN_vendorClass"
TableName = "FIN_vendorClass"
DelAll()
sqlStr = "DELETE FROM FIN_vendorAdd"
TableName = "FIN_vendorAdd"
DelAll()
sqlStr = "DELETE FROM FIN_vendor"
TableName = "FIN_vendor"
DelAll()
sqlStr = "DELETE FROM FIN_AddressType"
TableName = "FIN_AddressType"
DelAll()
sqlStr = "DELETE FROM FIN_VendorStatus"
TableName = "FIN_VendorStatus"
DelAll()
sqlStr = "DELETE FROM States"
TableName = "States"
DelAll()
sqlStr = "DELETE FROM Country"
TableName = "Country"
sqlStr = "DELETE FROM FIN_IndustrialCodes"
TableName = "FIN_IndustrialCodes"
DelAll()
ClearCounts()
timeStepStart = Date.Now
GenIndCodes()
timeStepStop = Date.Now
DispOneCounts()
DelAll()
ClearCounts()
timeStepStart = Date.Now
FinVendStat()
timeStepStop = Date.Now
TableName = "FIN_VendorStatus"
DispOneCounts()
ClearCounts()
timeStepStart = Date.Now
FinAddrType()
timeStepStop = Date.Now
TableName = "FIN_AddressType"
DispOneCounts()
ClearCounts()
timeStepStart = Date.Now
GenCountry()
timeStepStop = Date.Now
TableName = "Country"
DispOneCounts()
ClearCounts()
timeStepStart = Date.Now
GenState()
timeStepStop = Date.Now
TableName = "States"
DispOneCounts()
ClearCounts()
timeStepStart = Date.Now
FinVM()
timeStepStop = Date.Now
TableName = "FIN_Vendor"
TableName2 = "FIN_VendorAdd"
DispTwoCounts()
End If
If cbFinbudget.Checked Then
sqlStr = "DELETE FROM FIN_BudgetAccnt"
TableName = "FIN_BudgetAccnt"
DelAll()
sqlStr = "DELETE FROM FIN_Budget"
TableName = "FIN_Budget"
DelAll()
sqlStr = "DELETE FROM FIN_CodeBook"
TableName = "FIN_CodeBook"
DelAll()
ClearCounts()
TableName = "FIN_Budget"
timeStepStart = Date.Now
FinBudget()
timeStepStop = Date.Now
DispOneCounts()
ClearCounts()
TableName = "FIN_Codebook"
TableName2 = "FIN_budgetAccnt"
timeStepStart = Date.Now
FinCodeBook()
timeStepStop = Date.Now
DispTwoCounts()
ClearCounts()
End If

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DELETING RECORDS FROM TABLE WITH NESTED WHERE CLAU

Sep 11, 2007

Hi,

I have a query that is executing properly but i want to delete the results of the query. I am trying to do it but i am messing up somewhere in the syntax

Can anybody help me out with this problem?
Below is the query
DELETE FROM DPT_NEW_BINS WHERE(
Select BIN,LEFT(ACCT_NUM_MIN,16), LEFT(ACCT_NUM_MAX,16), ISO_CTRY_CD, REGN_CD ,PROD_TYPE_CD FROM DPT_NEW_BINS o
WHERE EXISTS (SELECT BIN,LEFT(ACCT_NUM_MIN,16), LEFT(ACCT_NUM_MAX,16), ISO_CTRY_CD, REGN_CD ,PROD_TYPE_CD FROM DPT_temp_NEW_BINS i
WHERE o.ACCT_NUM_MIN = i.ACCT_NUM_MIN AND o.ACCT_NUM_MAX = i.ACCT_NUM_MAX))

CAN SOMEBODY POINT OUT MY MISTAKE?

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May 24, 2007

No transaction log involved, only the table itself.



Use sp_spaceused "table_name" to check the space used.



It seems the table size actually increased from the beginning to the middle of deletion, at the end of deletion, its size decreased.



Recovery mode set to be simple, autoshrink turned on.



The tables tested are about 50MB ~ several GB in size, all have the same behavior. The size increased about 5%~10%.



Since the deletion is called from another software, I want to know if it is possible for SQL Server to have this behavior or it is absolutely the 3rd party software's issue



Thanks!

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Aug 5, 2015

I have many large tables with millions of records in a SQL Server database. They all use an Identity column which is the clustered index. We haven't been deleting any records until recently because disk space is now becoming a problem.

Assuming I delete a lot of old records, I'm thinking that the freed up space in the data pages won't be reused. New records will be added at the end of the table because of the Identity column being the clustered index. So the table will keep getting bigger even though there is lots of free space.

Assuming I'm right, then how do I recapture this unused space? Is an alter table rebuild the best way? Or rebuilding the clustered index?

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Feb 20, 2008

Hi,

I was running out of space and thus deleted some rows from a table. To my surprise the db size increased. I then shrunk it to bring it back to what it was earlier.

When i deleted some 5000 rows, some space must have been released. Where did the space go and why did the db size increase after deleting the records?

I thght it might be log files..but db is set to Simple Recovery which does not utilize a Log File.

Any reasons?

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Mar 23, 2006

Hello,

I am having problems with my sql merge replication. Whenever a user syncs up to my main database, most of their records are deleted instead of being merged.
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Corey

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Jul 13, 2007

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?







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Does anyone have a solution for me? Or there be other way?
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Aug 2, 2007

I have a question here.

I have a Audit tables database. I want to archive the Audit Tables data to another new database in the same server and remove the data in the Actual database but continues with the table seed where it's the primary ID.

Example:
I have a AuditProducts Table with AuditID as BIGINT and auto increment value.
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I want to archive the tables to a new database: Audit200707

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How can I done the whole process using T-SQL so that it can schedule and run for every month? BTW I am using SQL Server 2005 SP2.


Thanks and regards,

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Feb 25, 2005

I have a table with a load of orphaned records (I know... poor design)
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I need to delete all the records from the table "Floor_Stock" that
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BOD_HEADER.SITE
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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 =
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... but Sql Server just laughs at me: "Incorrect Syntax near the keyword INNER"

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Mar 3, 2004

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Mike B

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Aug 14, 2006

Hey all,

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Any help would be appreciated.

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Apr 12, 2007

Whenever I try to delete records from a table joined to another table, like so:



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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)

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This is an SQL CE database, and SQL Server Management Studio. Any ideas?

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May 18, 2006

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May 21, 2004

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DTS the ones to keep to another table, drop the old and rename the new table?
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Never worked with such a large table and need a little experienced guidance.

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Colleges
-------------------
schoolID - smallint NOT NULL,
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It is something like this,

MyCol
7
7
7
7
7
7
7
7
7
7

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Plz help me.


Regards,
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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 *
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ON [Employee].[Id] = [EmployeeCompany].[EmployeeId]

CREATE TRIGGER [dvEmployeeUpdate]
ON [dbo].[dvEmployee]
INSTEAD OF UPDATE
AS
BEGIN
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FROM EmployeeCompany, INSERTED
WHERE EmployeeCompany.CompanyId = INSERTED.CompanyId
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help me out on this one.
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2 trtr
3 tret
4 yghg
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table1
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Thanks in advance

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