"auto-reuse columns" with foreign key columns gives auto-renamed duplicate table columns
PD: 220.127.116.117 EDF17
We have composite keys on our tables to enforce relationships between
records referenced from the same instance. For example, we have a
Companies table with pk COMPANYID and a ContactPersons table with pk
COMPANYID, CONTACTPERSONID. Orders can be created referencing a
mandatory company, plus an optional contact person which has to be a
contact person of that company. We model this by creating 2 fields in
the Orders table: COMPANYID and CONTACTPERSONID plus 2 foreign keys
into the Companies and ContactPersons tables. i.e. both foreign keys
sh...Table design question (to foreign key or not to foreign key)
Our application is a message board and is full of messages, threads, and
forums. A message is an individual entry (like the one I'm typing now ;)).
Our software gives the user the ability to upload a single file attachment
to each message.
I can think of a couple different ways to design the two tables:
message( messageid numeric identity, attachmentid numeric null, messagetext
text, other, message, stuff... )
attachment( attachmentid numeric identity, title varchar, other, stuff )
message( messageid, messagetext text, other, stuff )
attachment( messageid numeric foreig...Error: Primary key for row in table 'x' is referenced by foreign key 'f' in table 'y'
(ASA 9 newest ebf)
I'm getting this error even though mentioned foreign key has cascade updates
(and deletes too) enabled.
Is this some new behaviour in asa 9, or why can i get such message for
cascaded foreign key? Any ideas?
Found a reason for it...but should it really work so? It's this way:
- table a has columns a,b,c
- table b has columns a,c, and references columns a,c (with a,c) in table a
with cascade updates
- table a hes before update trigger to change columns a when column b is
changed (set new_row.a = ...)
and that set new_row.a = ... i...Link the "Referenced By" and "Foreign Key" folders in SC
This drives me nuts. When I need to see all the tables that reference a
given "parent" table, the "Referenced By" folder is a life-saver. However,
the next thing I *always* want to see is the details of the foreign key
"Jeez, is that a Cascade Delete or a Restrict? I can't remember".. I've
got to navigate to the Foreign Keys folder of the referencing table to see
that detail. With hundreds of tables in our model, this is really getting
Either let me see the foreign key details (columns and integrity, and
view-only would ...Foreign key to other table, with foreign key back to first one: ok?
Is it ok for two tables to have foreign keys to each other based on the same
columns? If so, are there rules about the cascade settings in such a case? I
am thinking of tables that are virtually one-to-one with each other and can
tend to be viewed or deleted equally "from either end".
The first problem I see with this is that it is a "which came first, the
chicken or the egg" type of a problem.
When you insert into one table the FK is going to want to check to see if
the value is in the other...Are there different between ViewState.Add("key","Word"); and ViewState["key"] = "Word";
I think the 1 and 2 are complete same, is it correct?
1. ViewState.Add("key","Word"); 2. ViewState["key"] = "Word";SuperCool Multiple ZIP - A utility to unzip multiple files and work with multiple zip filesSuperCool Random Number Generator
You are correct, option 2 is short hand for option 1.Philip Beadle (MVP, MCAD, MCT DotNetNuke Core Team)...<key id="key_savePage" key="&savePageCmd.command.key;" command-"Broswer:SavePage" modifiers="accel"/> ----^
Summary: <key id="key_savePage" key="&savePageCmd.command.key;" command-"Broswer:SavePage" modifiers="accel"/> ----^
Downloaded SeaMonkey 1.1.5 with same result on installation. PowerBook
G4 OS X 10.4.10
Browser Details: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:18.104.22.168) Gecko/20070802 SeaMonkey/1.1.4
...Update impossible if Foreign Key column is invisible="true"
Hi,I have a problem I do not understand.I have a GridView that show one of my table, and this table has a column which is a foreign key...I'd like this particular column in my GridView to be invisible to users, so they won't try to change its value when updatting the row.The problem is : if I set the visible property of this column to "true", the update works. If I set it to "false", the update fails.This column has also InsertVisible set to "False".Does anyone has any idea of the reason why I have this issue?Thanks in advance.
http://forums.asp.net/thread/1547081.aspxRegards Mike [M...General Exception Item has already been added. Key in dictionary: "monday" Key being added: "monday"
I just noticed I have 1000's of these in my log...AssemblyVersion: -1Method: FileName: FileLineNumber: -1FileColumnNumber: -1PortalID: -1PortalName: UserID: -1UserName: ActiveTabID: -1ActiveTabName: AbsoluteURL: AbsoluteURLReferrer: ExceptionGUID: DefaultDataProvider: InnerException: Item has already been added. Key in dictionary: "monday" Key being added: "monday"Message: System.ArgumentException: Item has already been added. Key in dictionary: "monday" Key being added: "monday"
at System.Collections.Hashtable.Insert(Object key, Object nvalue, Boolean add)
at System.Collections....Table "ENTRY" has no entry in the "ml_table" Table
Remote database: Ultralite
Consolidated database: ASE 12
MobiLink server started with -v+, -zu+, -zac, -zec options
The download succeeds. The upload fails because none of the upload tables
are added to the ml_table table. If a different script version is used
between the two steps (e.g., "ul_download" and "ul_upload") the tables from
step 2 get added to the ml_table table, but no date is synched (even if
there is data to be uploaded in the remote database) because no
upload_cursor script is automatically generatred. What needs to be done to
get this script ge...binding 1 gridview to 2 tables having common column(primary key/foreign key)
Can anyone please tell me how to bind to 2 tables having a common column(primarykey/foreign key) to a gridview .the 2 tables have a common column(primarykey/foreign key).I want this in asp.net/vb project.Thank you.Gurjeet,England
You can use DataSet, take a look at this link:
http://msdn2.microsoft.com/en-us/library/system.data.dataset(d=ide).aspxWelcome to my SQL/ASPNET forum for Chinese http://51up.org/bbs/forumdisplay.php?fid=38...column "name" is not in table "name "
I have a problem with PB 6.5.1, and Informix 5.02 (Online) ...
We receive the error above in subject.... when i tried to make a
updated. (settings) .. I`m not sute what that mean..
I have done all the testing.. and I did not find anything...Please ..
It sounds like the datawindow has a select statement that selects data from
multiple tables using a SQL Join. nd perhaps when the update properties were
set, columns from multiple tables were selected and marked as updateable
I will test this when I get a ...The OLE DB provider "MSDAORA" for linked server "...." does not contain the table "COUNTRY". The table either does not exist or the current user does not have permissions on that table.
I am using SQL Server 2005 and trying to create a linked server on Oracle 10. I used the commands below:
@server = 'test1',
@srvproduct = 'Oracle',
@provider = 'MSDAORA',
@datasrc = 'testsource'
@rmtsrvname = 'test1',
@useself = 'false',
When I execute
select * from test1...COUNTRY
I get the error. "The OLE DB provider "MSDAORA" for linked server "...." does not contain the table "COUNTRY". The table either does not exist or the current user does not have permissions on that table."
The ...Single Quote Error While writing RegisterClientScriptBlock("key", "Value")
I am facing one problem due to single quote.
I am writing underwritten script to close currently opened form and to get those values
in another form.
strScript as string
strscript = "
Now if i have value of "Facto'ry" instead o...