Updating/Deleting Multiple Tables Simultaneously
Mar 1, 2005
Hi,
I'm using ASP with a JScript variant and MSSQL Server 2000. I would like to write a script that basically erases all data except for a few things.
Is there a way to update multiple tables at once without having to write lines and lines of code? I tried UPDATE tbl1,tbl2 SET uid='asc', but to no avail. It gave me a syntax error. My thinking behind it is something like... UPDATE dbo.* SET uid='mferguson' and after that I can delete stuff like DELETE dbo.*... Any ideas?
I know the above is ASP, I've tried this thread in the ASP forum with no avail... they referred me to this forum.
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Jul 20, 2005
I have two table both say A and B.If i insert a record in A that record should be inserted in B.If i delete a record in A that record should be deleted from B.Is that possible.If yes please tell me.Thankyou in advance,vishnu
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Aug 31, 2006
Hi,I have managed to create a second copy of my "live" database, forsoftware testing purposes.Inspecting the properties of the new database, everything seems inorder. The logical file name is the same, which I believe is fine, andthe physical database (and log file name) is different.However, despite the fact that there is no application currentlyaccessing the "testing" copy, both databases are seemingly beingupdated simultanously. I can tell this from the physical file sizes onthe server, which are identical, and growing at the same rate.Does anyone have any suggestions why this might be happening - and howI can stop it?Thanks in anticipation!Phil
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Apr 19, 2005
want to delete rows from two tables after a join.
in Access, here's something we can do:
delete table_A.*, table_B.*
from table_A left join table_B on ...
but in ms sql, it appears (to me) that you can only delete from one table at a time. how would i accomplish what i want to do?
also, is there a distinctrow equivalent in ms sql server? thanks
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Jan 10, 2007
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.
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Oct 10, 2007
Hi,
I have different tables with the same schema as follows
ID Name
-----------------
<Table 1>
ID Name
-------------------
1 Name1
2 Name2
3 Name3
<Table 2>
ID Name
-------------------
1 Name1
4 Name4
5 Name5
I just want to delete the row where ID = 1 from these tables in one query ? Is it possible??
Thanks
~Mohan
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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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May 26, 2007
is there a way to delete multiple tables using the Management Studio GUI?
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Jul 24, 2007
Hi,
I have a relational database with the primary table, table01. And 2 child/foreign tables, table02 and table03. All 3 tables shared the same key - [ID].
I am not sure if this is the correct approach but I am trying to create a stored procedure where if I were to delete a the row in table01 (primary), the procedure will automatically delete the common row in both table02 and table03.
I have come up with something like that but it does not seems to be correct.
CREATE PROCEDURE [sp_delete_test01_1] (@id [int])
AS
DELETE [test01] DELETE [test02] DELETE [test03]
WHERE ( [id] = @id)GO
Your advise please. Many Thanks.
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Aug 28, 2006
Hello,I read Data Tutorials from this site. here in DAL Different TableAdapters are created for different purpose. I want to know when I want to update More then one table at a time then I have to fire Update Query from more than one Table Adapter. now how to maintain Consistancy? what if one adapter is successed and other fails to update tables in my database ? How to solve this problem???
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Mar 19, 2008
Hi,
I'm trying to update a table with a value that is dependent on another table.
Scenario
Table 1 has 2 fields: FieldID, FieldA
Table 2 links each Table 1 row to a specific row in Table 3 using FieldID
Table 3 has 2 fields: FieldID, FieldA
I need to update Table1.FieldA to equal the value in Table3.FieldA in the appropriate row.
I was attempting this along the lines of:
UPDATE Table1
SET Table1.FieldA=
(
SELECT DISTINCT Table3.FieldA FROM Table1, Table2, Table3
WHERE Table1.FieldID=Table2.Table1ID
AND Table2.Table3ID=Table3.FieldID
)
However, I realised that the select query would not know which Table3 row to look at.
I hope that makes sense and if someone can help me urgently I would be most appreciative!
Ian
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May 10, 2007
we have some tables in a many-to-many relationship. when data is changed in a row in one table, simultaneous changes are also made to a second table. this may not be the best way to do what we are doing, but it's the way it is today. if we were to use merge replication with column-level tracking and a conflict occurs in a column in either table, we want the row for both tables to be including in the conflict and resolved together. we don't want the row for a table that no conflict occured to be updated while the other row in the other table where the conflict did occur to not be updated. is there a way to wrap two updates to two tables in a transaction? or link them together in a single "conflict resolution transaction"? i don't see any online documentation referencing this scenario. if there is documentation on this, i would appreciate a pointer to it.
thanks,
bryan
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Apr 27, 2015
Is there any way to update multiple tables in a single query. I know we can write triggers. Apart from triggers, is there any other way available in SQL Server. I am using 2008R2.
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Mar 16, 2008
Hi All,
My database's design is set out here. In summary, I'm trying to model a Stock Exchange for a Technical Analysis application written using Visual C++. In order to create the hierachy I'm using a Nested Set Model. I'm now trying to write code to add and delete equities (or, more generically, nodes) to the database using a form presented to the user in my application. I have example SQL code to create the necessary add and delete procedures that calculate the changes to the values in the lft and rgt columns, but these examples focus around a single table, where as my design aggregates rows from multiple tables using UNION ALL:
Code Snippet
CREATE VIEW vw_NSM_DBHierarchy -- Nested Set Model Database Hierarchy
AS
SELECT clmStockExchange, clmLeft, clmRight FROM tblStockExchange_
UNION ALL
SELECT clmMarkets, clmLeft, clmRight FROM tblMarkets_
UNION ALL
SELECT clmSectors, clmLeft, clmRight FROM tblSectors_
UNION ALL
SELECT clmEPIC, clmLeft, clmRight FROM tblEquities_
Essentially, I'm trying to create an updateable view but I receive the error "UNION ALL View is not updatable because a partitioning column was not found". I suspect that my design in wrong or lacks and this problem is highlighting the design flaws so any suggestions would be greatly appreciated.
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Sep 9, 2006
Dear All,
I am not an expert on T-SQL and I am trying out a small project to learn.
I
have encountered a problem, whereby I have 2 tables, 1 containing the
header (header_id, header_file, admin_menu_id and admin_submenu_id) and
then I have another table called header_details, where I am storing the
language details for this header, with the fields being
(header_details_id, fk_header_id, header_alt, header_caption and
fk_language_id)
Now I want to create a stored proc, first to
insert the header and then the header details. I also want that if the
header or header details already exist, I just do an update on these
tables.
I tried the following code but its not working:-
ALTER Procedure [dbo].[INSERT_Header]
(
@admin_menu_idint,
@admin_submenu_idint,
@header_filevarchar(150),
@header_altvarchar(150),
@header_captionvarchar(200),
@language_idint
@outIDint OUTPUT
)
AS
BEGIN
-- First do a select on the header table to see if this header already exists
DECLARE @count integer = 0
SELECT COUNT(*) as @count
FROM headers
WHERE[fk_admin_menu_id] = @admin_menu_id
AND[fk_admin_submenu_id] = @admin_submenu_id
--if it exists, then update this header
IF @count > 0
BEGIN
UPDATE [headers]
SET [header_file]= @header_file
WHERE [fk_admin_menu_id] = @admin_menu_id
[fk_admin_submenu_id] = @admin_submenu_id
ELSE
-- Insert header in header table --
BEGIN
INSERT INTO [headers]
([header_file]
,[fk_admin_menu_id]
,[fk_admin_submenu_id])
VALUES
(@header_file
,@admin_menu_id
,@admin_submenu_id)
-- Get the Inserted Header ID --
SET @outID = SCOPE_IDENTITY()
END
-- Now do a select on the header_details table to see if this header with this language already exists
DECLARE @count_details integer = 0
SELECT COUNT(*) as @count_details
FROM header_detail
WHERE[fk_admin_menu_id] = @admin_menu_id
AND[fk_admin_submenu_id] = @admin_submenu_id
AND[fk_language_id] = @language_id
--if it exists, then update this header
IF @count_details > 0
BEGIN
UPDATE [header_detail]
SET[header_alt]= @header_file
,[header_caption] = @header_caption
WHERE [fk_header_id] = @header_id
[fk_language_id] = @language_id
ELSE
-- Insert header in header table --
BEGIN
INSERT INTO [header_detail]
([fk_header_id]
,[header_alt]
,[header_caption]
,[fk_language_id])
VALUES
(@@out_ID
,@header_alt
,@header_caption
,@language_id)
END
END
Can you help me out please?
Thanks a lot for your help and time
Johann
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Aug 24, 2007
We are currently using Crystal reports but are considering using SQL RS. We need to know if there is a restriction on simultanoeus access to the same report by multiple users? What happens when multiple users try to access the same report simultaneously? If reports can be accessed simultaneously, do the requests queue up or are they processed concurrently?
Any help on this issue is greatly appreciated.
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Mar 5, 2007
Alright, here's the deal. I'm testing some backup/restore strategies, and hitting a (slight) sticking point.
We've got collections of database and log backups created by the usual maintenance plans on a 2000 Enterprise machine. I'm trying to run through a restore onto a new 2005 machine (Developer Edition on my test workstation) using the collection of .bak and .trn files copied from the 2000 server. When I try to restore to a new database on 2005 via SSMS, and select all the .bak and .trn files for the restore, I get the ol' "The volume on device '[trimmed]' is not part of a multiple family media set. BACKUP WITH FORMAT can be used to form a new media set." error.
I'm assuming this just means that SQL Server can't verify that these log backups are in fact part of a functional "set", even if they aren't part of a traditional backup media set. Is there any way to tell SSMS, "It's okay man, just restore the database from these files, in this order - trust me," or is the only solution restoring every individual log file one at a time? (Which seems to work fine, though is a tremendous pain with any more than a few log backups.) Seems like there ought to be a good one-shot method to restore a bunch of backups to a different server, and I'm just not finding it.
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Aug 9, 2007
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
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Nov 10, 2007
Hi,I made a gridview, and I am trying to make it so when the user deletes a row, values in other tables update. I used the following source code: <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>" DeleteCommand="DELETE FROM [Transactions] WHERE [TransactionID] = @TransactionID AND UPDATE [items] SET Quantityavailable, numtaken VALUES Quantityavailable + 1, numtaken - 1 WHERE ([Itemid] = @Itemid) " It gives the error that Quantityavailable is not a SET type?Thanks if you can suggest a remedy! Jon
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Apr 11, 2007
I use discountasp.net. I've added some new tables that I'd like to place on my website. My problem is that if I reattach my mdf file to my server, my member roster gets deleted. So my question is how can I update the mdf file without losing member information?
Thanks,JW
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Aug 17, 2006
I have created a single Data Flow Task that reads a set of records from a source table and then makes determinations whether to insert, update or delete from a destination table. The data is basically being copied from one database to another with a small amount of data manipulation and lookups. The problem seems to be that when running the task, even a small amount of records read from the source table seem to take a long time for the task to finish. I feed the records into a Script Component (the brains) that sorts the records to three separate outputs. I use OLE DB Commands to perform the DELETE and UPDATE and an OLE DB Destination for INSERT. I thought that by using three separate database connections would help, but it just appears to be locked while trying to perform these commands against the same table.
Is there a way to control or route these three record sets in such a way as to perform them sequentially?
I know it's a bit of a simple question for some of you, but I'm just learning SSIS (but I like it!).
Thanks!
Jeff Tolman
E&M Electric
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Apr 2, 2008
Is there a way to delete from multiple tables/views a column with a specificname? For example, a database has 50 tables and 25 views all have a columnnamed ColumnA. Is it possible to write a simple script that will deleteevery column named ColumnA from the database?Seems to be it would be possible and I can somewhat vision it usingsysobjects but without wanting to spend too much time generating the script(when I could in shorter time manually delete) thought I'd pose the question.Thanks.
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Mar 21, 2008
Hi! I have a general SQL CE v3.5 design question related to table/file layout. I have an system that has multiple tables that fall into categories of data access. The 3 categories of data access are:
1 is for configuration-related data. There is one application that will read/write to the data, and a second application that will read the data on startup.
1 is for high-performance temporal storage of data. The data objects are all the same type, but they are our own custom object and not just simple types.
1 is for logging where the data will be permanent - unless the configured size/recycling settings cause a resize or cleanup. There will be one application writing alot [potentially] of data depending on log settings, and another application searching/reading sections of data.
When working with data and designing the layout, I like to approach things from a data-centric mindset, because this seems to result in a better performing system. That said, I am thinking about using 3 individual SDF files for the above data access scenarios - as opposed to a single SDF with multiple tables. I'm thinking this would provide better performance in SQL CE because the query engine will not have alot of different types of queries going against the same database file. For instance, the temporal storage is basically reading/writing/deleting various amounts of data. And, this is different from the logging, where the log can grow pretty large - definitely bigger than the default 128 MB. So, it seems logical to manage them separately.
I would greatly appreciate any suggestions from the SQL CE experts with regard to my approach. If there are any tips/tricks with respect to different data access scenarios - taking into account performance, type of data access, etc. - I would love to take a look at that.
Thanks in advance for any help/suggestions,
Bob
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Oct 15, 2009
is there a way to update multiple rows in one update query in tsql? what I wanted to do is for example I got a table containing
code : desc
1 : a
2 : b
3 : c
4 : d
1 : e
3 : f
I wanted to update it to
code : desc
1 : x
2 : b
3 : y
4 : d
1 : x
3 : y
how to do it?
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Feb 12, 2003
I need to delete multiple sql logins on one of my database servers that are no longer needed. Most of these logins are not attached to any database on the server because the database has been deleted from this server. Is there any way to delete logins that are no longer needed without having to review every login to verify it is not attached to a database before deleting?
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Aug 27, 2004
I have a table with a record that looks like the attached TXT.
I need to keep the most recently entered value where flag_out = 1 and delete those duplicate
records, and this should only apply to records where there's also an flag_in value of 1.
I've tried a bunch of delete statements without avail....
TIA
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Sep 5, 2007
Hi,
How do you delete multiple packages at once ?
We have a folder in SSIS called ETL and there are about 25 SSIS packages in it.
Now we need to update it.
I tried to delete the folder but you get the message that the folder is not empty.
So I renamed the folder to ETL_old and my deployement works fine.
But now I want to get rid of all the old folders. Delete a folder didn't work.
Selecting multiple packages doesn't work.
To delete a single one you select the package, right click and select delete, click yes.
But then I have to do it 25 times. I was unable to set a short cut with the keyboard for that action.
Any ideas ?
Constantijn Enders
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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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Feb 28, 2007
Hey all,
I know very simple SQL queries but I need help with this one. I have multiple lines in a SQL database that I need to run. Basically, I need to run this (the bracketed text and the XXX are place holders):
DELETE FROM [tableName] WHERE [columnName] = 'XXXXX'
But I need to run it around 90 times where XXXXX is a unique variable each time. I could create 90 lines similar to this one but that would take way too much time to run. Any suggestions for a noob?
Thanks,
- MT
-=<>=-=<>=-=<>=-=<>=-=<>=-
Matt Torbin
President
Center City Philadelphia Macintosh Users Group
http://www.ccpmug.org/
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Jul 21, 2005
Hi, I am pretty new to SQL and know that I am probably going around this the wrong way.
I want to make a stored proc that deletes rows from table 1 and delete rows from table 2 where the common link is the id.
Any help would be greatly appreciated!
Many thanks
moop
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Feb 21, 2001
hi,
How can I delete two tables with a WHERE condition.
That is I can't do this -What can be an alternate of this statement -
Delete from Tab1,Tab2,Tab3
where
Tab1.name = Tab2.Name and
Tab2.name = Tab3.name
TIA
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Aug 24, 2005
Does anyone know why it takes a long time (Approx 10 minutes) to delete a DB. I have 2 identical environments for test and prod. I can delete DBs from my test environment quickly but it takes forever to delete a DB from the production environment. I am running SQL2000 SP3a. There are about 25 DBs in the environment with their sized ranging from 100meg to 2 gig. The only differnece in the environments is all test DBs are simple recovery mode and modt prod DBs are full.
Thanks,
Ken
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Apr 22, 2008
Hello everyone,
I have to delete some rows from three different tables. My tables are:
- VERSION_1
- ID
- VERSION_2
- ID_VERSION FOREIGN KEY
- VERSION_3
- ID_VERSION FOREIGN KEY
The 3 tables are related to each other by the VERSION_1 ID.
what i have to do is deleting first from VERSION_3, then from Version_2 and finally from VERSION_1. This is what i got so far:
DELETE FROM VERSION_3, VERSION_2, VERSION_1 WHERE VERSION_3.ID_VERSION = ? AND VERSION_2.ID_VERSION = ? AND VERSION_1.ID = ?
I cannot make it work, could someone please help me? i am stuck at this.
Thanks in advance
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