I am inserting data into two tables on a button click.
I need to insert the primary key generated for Table A into the Table B as a foreign key.
How do i get the primary key value and insert into Table B?
I need to copy the records of a row to the next available row in the same table. I tried with "Insert ...Select " but it throws me a error since the pk is auto-increment. Also, i cant specify each and every column inside the insert...select statment cause i've almost 30 columns.
View 5 RepliesI am working on a database with about twenty tables. In one of the tables "Customers" their is a column with
a primary key. Call it "CustomerNumber".
The problem is that we log customers from multiple vendors and so we might have the same customer number, but from different vendors. So really this would be a perfect situation where we could set up the primary key to be a composite key consisting of the Vendor and CustomerNumber combination.
The integrity of the database is not very well maintained because the Primary Key CustomerId is never used as a secondary key in any of the other tables.
So here is my question. Instead of making a primary composite key, can I just drop the primary key all together?
This is one of those questions I really hate to ask, because typically I would never lean tword this drastic of a measure to solve a problem. Because of other situations I can't discuss this might be the best alternative. So would it be okay to drop the primary key constraint all together?
How to create two primary key in a table using sql query and manually?
View 3 RepliesI am a rookie developer here and I have tried looking around for an answer but I am little confused. I have a stored procedure that calls multiple stored procedures when I go to create a new contact.[Code]....
I though I could use the OUTPUT Command to copy out the NewContactID but I am getting all kinds of syntax errors. I am confused as to what I am missing here.
auto increment alphanumeric primary key(eg :ABC001) in sql server 2005 database table.
View 2 RepliesThere is one table which primary key is ID and its data type is Integer with auto increment. Gradually the value has increased and I want to change it to hold large amount of value.
So, Which in data type I have to change from Integer without effecting the previous values?
I have tables:
MAILBOX
MailboxId int PK
MailboxTypeId int FK
MAILBOXTYPES
MailboxTypeId int PK
I can't make relationship between MailboxTypeId in table MAILBOXTYPES and MailboxTypeId in table MAILBOX why ?
How to inner join 2 table with primary key by no duplicate data in sqlserver 2008 ?
View 5 Repliesi get the following exception (missing primary key) in the line of using Find() method "Table doesn't have a primary key." I've rechecked the Database and all Primary Key columns are set correctly.
DataTable dt = p.GetAllPhotos(int.Parse(Id));
DataTable temp = new DataTable();
temp = dt.Clone();
temp = (DataTable)(Session["currentImage"]);
DataTable dtvalid = new DataTable();
dtvalid = dt.Clone();
DataRow[] drr = new DataRow[1];
drr[0] = dt.Rows.Find((int.Parse(temp.Rows[0]["photoId"].ToString()))+1);
foreach (DataRow dr in drr)
{
dtvalid.ImportRow(dr);
}
dtvalid.AcceptChanges();'
tbl_table1
ID primarykey (autoinc)
UserId uniqueidentifier
IdNumber primarykey int
I'd like to have a relationship between two tables.
In the database one number like a 91-9685748596 and, 2nd number like 9122-9685748596 and another one is 9685748596 .when we are try to formate it using substring function it all are may be9685748596,9685748596,9685748596.Mobile number is assigned as a primary key.so its showing error "Primary key violation".We can not the remove primary key also and there are 50 lack data in our database.
View 6 RepliesHow i use primary key table & foreign key table data for retriving the data with each other.I had make both table i confuse how to use it.
View 1 RepliesHow can we map a table without having primary key in nHibernate.I have a table which does not contain any primary key, so how can i map this table in .hbm.xml file.
View 1 RepliesDoes anyone knows if CTP 4.0 supports table with no primary key. I know Entity framework does.
View 3 RepliesI have a table with composite primary key and this key includes two values referring to two other tables. Now I need to implement Edit feature for this Original Table but I wanted to have dropdown lists while editing pointing to look up tables(composite key values are primary keys for two lookup tables). for eg.
Table1(table1_primarykey, table1_field1)
Table2(table2_primarykey, table2_field1)
Table3( table1_primarykey,table2_primarykey, table3_field1) - composite primary key
while editing I wanted to display table1_field1, table2_field1 instead of original primary keys as numbers in Dropdowns.
I have a data connection to an existing MySQL database. The database has various tables. I am creating a new table, and want to set the ID field to be the primary key. I can not see a way of doing this inside Visual Studio. I saw one suggestion to right click on my ID field in either the Server Explorer or XSD and select Set As Primary Key (or something like that), but I don't have that option displayed.
View 4 RepliesI have a table that get populated via an external text file. I am not sure of the exact process as I'm relatively new to the company.
The table does not have a primary key as the entire table is dumped and re-loaded every quarter when there is a new text file.
Enter ASP.NET MVC. I need to display that table with checkboxes in a grid so the user can select some rows and send it back to the server. It sounds relatively easy, but I am really not sure what to put as the value for the checkboxes as I am pretty sure I'll need to use multiple columns to create a unique. Yep, I know, I know :).
OldTable
- Field1
- Field2
- Field3
...
- FieldN
The View
...
<input type="checkbox"
name="bunchOfStuff"
value"Field1Value,Field2Value,Field3Value"/>
...
Would something like this work? If I can create a key with a few fields, can I use those fields as the value in the checkbox? I realize my action will be a bit ugly as I'll have to split and parse each value in the array of values.
i have to make a three primary key in one table
View 2 Repliesattribute to be the foriegn key which is not a primary key in the original table?
View 1 Repliesi have created a web form, where i have 3 textboxes into a table and one submit button.
i would like to store values from the textboxes into my database (sql server) when i click the submit button.
but how to insert the value that is not in textbox into database which is primary key for table without identity column.
I have the following gridview (ID=Gridview1)
I have added pid (primary key), chkblood,chkurine,chkstool,chkmalaria as datakeynames.
what I want to pull off here is .... when I click select I'll be redirected to this wizard
[Code]....
I did that....now I want to hide / skip steps in the wizard depending on the condition of checkboxes (chkblood, chkurine,chkstool,chkmalaria)
but I cant get the value from these non-primary datakeynames...
Using a very run-of-the-mill database, with identity int for primary keys, a Dynamic Data Entities Project (EntityFramework) displays the primary key for view and edit. When using Linq to Sql, the primary key fields are not displayed.
I would like to hide the primary keys and use Entity Framework (VS 2008, .Net 3.5 sp1).
In my databse i have a databse tables
UserRole -UserID,UserName,RoleName.
Compaign - CompaignId,Region,CompaignName,LOB.
Employee -EmpNo,EmpName,CompignId
Timesheet -TimeId,EmpNo,Date.
I dont have primary key for Compaign Table CompaignId is Identity column. Now i want to use CompaignId in Employee Table because based on compaign user will retrieve employee data in Front end. Again Employee table doesn't have primary key. I am uploading excel file data to databse but in excel file there is no empNo so i cannot use primaryKey i have EmpName in excel file. How to solve this issue. How to use master table if possible create table structure for my requirements.
Why do we need to have Composite Primary Key
Can't we set one column as Primary and others as Unique key.