Sql - Update Query Using Two Tables Asp.net Vb?
Jun 13, 2012
I COMPLETELY understand how redundant this is but I NEED it.Upon users creating a User account which only contains the ID, Username, Password and CustomerID I must also have a record in Customers create itself but null everything and the User.User_Customer_ID must update to the newly created Customer.Customer_ID
I have everything working but this pesky update query. The ONLY thing it needs to do is change User.User_Customer_ID to Customer.Customer_ID I managed to story the User.User_ID in an integer called UserID and Customer.Customer_ID in an integer called CustomerID I have tried a million different ways with no success
[Code]...
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Jul 28, 2011
I want to update two tables by single query
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Jul 12, 2011
have a datagridview containing 2 tables left joined, so that:table1 LEFT JOIN table 2 ON table1.id=table2.idI get an error whenever I try to edit my datagridview."invalidOperationException was unhandled by the user codeDynamic SQL generation is not supported against multiple base tables."The error points to this line:
da.FillSchema(dt, SchemaType.Mapped)
da.Update(dt) << This line
'da = dataadapter
[code].....
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Oct 29, 2010
In my datagridview I was fill in using join tables (table1 = pr_employees, table2 = pr_employee_deduction). My problem now is during save button I want to update records from table2 only.[code]
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Mar 21, 2011
In one sequence i want to update 4 tables.if one update fails i want to roll back all updations.Data should be in starting state.how i can do that in vb.net
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Dec 2, 2010
How to use this query to update record [code]....
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Aug 15, 2011
I am having difficulty with a SQL query in my project.I have 3 tables.
T1:
- Date
- ID
- Location_ID
[code]....
From this I need the T1.Date and T3.Result based on Location in T2.So my I need a query to compare a known location, get the Location_ID. Then Use that Location_ID to get the Date and ID. Use the ID to get the Result from T3. (Value is a variable with the known Location)
This is what I have tried:
"SELECT T1.Date,T3.Result _
FROM T1,T2,T3 _
WHERE T1.Location_ID = (SELECT T2.Location_ID FROM T2 WHERE T2.Location = '" & Value & "') AND T3.ID = (SELECT T1.ID FROM T1 WHERE
T1.Location_ID = (SELECT T2.Location_ID FROM T2 WHERE T2.Location = '" & Value & "'))"
I get the error 'Sub query returns more than 1 value...'
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Dec 22, 2010
I'm using VB.Net express with an Access file, and I have the following tables:
table Formula
id | name
-------------------
1 | formula 1[code]....
So each formula have one or more components.Which query will I use if I want all the formulas with for example Component A AND Component D (Result: formula 1, formula 2)? I try something with intersect, but it seems it doesn't work in VB...
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May 27, 2010
[code]The query executes fine but the problem is that when this query executes, it doesn't update the percentage field. What might be the problem?
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Nov 15, 2008
I have a simple "two-tables" database (SQL EXpress) and a very simple application (VB 2008 Express). The two tables are customer and order and their structures are:
customer(IDcustomer, LastName, FirstName) IDcustomer=primary key orders(IDord, Number, Description, IDcust)
IDord=primary key the tables are related (IDcustomer-->ID cust)
In VB2008 environment I create a dataset, by means of Data Source Configuration Wizard, which encompass both customer and order tables (xsd file). By opening xsd file I set the relationship in the following manner:
"Both relation and foreign key constraint"
Update Rule = Cascade
Delete Rule = Cascade
In my form I show customer table in detail-mode and orders table in datagridview-mode. Two Fill method are created in the Load event and they work correctly.In "CustomerTableAdapter" I create, with QueryBuilder, a search query (say LastName query) and I write the following code:
Private Sub frmSearch_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.CustomerTableAdapter.FillByLastName(Me.CustomerOrdersDataSet.custom er, "D") 'All Lastnames with first letter = D
[Code]...
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May 3, 2010
there are three tables in dbf , table1,2,3 respectively all are contains similar structure but different data Structure : S.no Quiz Question i want the query which select the Quiz Question/records through user given Range from Textbox1.text to Textbox2.text
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Mar 18, 2009
Im trying to create a form in VB that allows the user to perform queries on a number of tables which are in access.
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Aug 17, 2009
How can i execute my query to insert records in tables?[code]...
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Dec 13, 2009
I have a 4 table database and need to query at least 2 tables (the single table query works fine). The output goes in textboxes / labels on an existing form.
I'm trying something like this:
Private
Sub AddCustomer_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code].....
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Sep 10, 2011
I am having 3 tables in my DB Challans, Challan_Details & Customers. They are as follows
Table Challans:
Customer_ID (Related with Customer_ID in Customers Table) Challan_ID (Key) Challan_VchNo (Voucher No.) Challan_Date Invoice_ID
Table Challan_Details
[Code]....
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Jul 1, 2010
i have 3 tables t1,t2,t3..if i update t1,t2 and t3 must also be updated.i have just been tried
UPDATE t1,t2,t3 SET t1.f1='sample',t2.f1='sample',t3.f1='sample' WHERE t1.f1='test' and t2.f1='test' and t1.f1='test'
using this,update fails if t2 and t3 could not find 'test' in their fields,if i use OR all records will be..i have also tried JOINS
Update tbl_maincat AS m LEFT JOIN tbl_maincat AS m2 ON m.cTitle = m2.cTitle,
tbl_main AS c LEFT JOIN tbl_main AS c2 ON c.MainCat = c2.Maincat,
tbl_subcat AS s LEFT JOIN tbl_subcat AS s2 ON s.csCat = s2.csCat
[code]....
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Oct 16, 2011
I have 2 tables. I'm getting info from table1 which is loaded in an rtb.
vb.net
]Dim cmd_info As New MySqlCommand("SELECT kan_info FROM kan_info WHERE kan_id= '" & kt_id & "'", conn)
reader = cmd_info.ExecuteReader
While reader.Read
beslag_kanton_info.Text = _
"RB_REF: " & vbNewLine & _
"KT_REF: " & vbNewLine & vbNewLine & _
reader.Item("kan_info").ToString
End While
This works great, but I need to add extra info after "RB_REF:" and "KT_REF:" (e.g: RB_REF: 12345 / KT_REF:6789) Those values are located in another table. How do I change the code/query so it also get the necessarily records from that table? Obviously there is a column "kan_id" with same values. I can't merge the tables btw.
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Oct 28, 2009
I have a db with three tables. On the form i drop the first table, then the second (related), then the third (related to the second). I use 1 dataset and three datagridviews. The problem is that i can't update the three tables when i use the update button. I use VB 2008.
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Jul 22, 2009
I need to upon edit of datagridview save to sql table by button click or by cell value changed doesnt matter to me.
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Nov 20, 2009
I have a database with numerous tables all containing the same field. the field needs to have the same value in all of the tables, but currentlydoesn't.Is there a way to use Visual basic codehat goes to each table and updates the field in all of the tables without having to manually go to each table and update the field?
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Dec 11, 2010
i would like to know where is a sample code programmed in 3 tier or n tier to update 2 related tables.
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May 23, 2011
I have this code and I know that this part "WHERE dbo.tblenrol.SectionName=dbo.tblSection.SectionName)" of the code not right... I want to update the my tblenrol.Adviser from tblTeacherFile.Adviser if the tblenrol.SectionName is equal to tblSection.SectionName...How do I do it??
Using cmdUpdate As New SqlCommand("UPDATE tblEnrol " & _
"SET tblEnrol.Adviser = (SELECT dbo.tblTeacherFile.Adviser " & _
"FROM dbo.tblTeacherFile " & _[code]......
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Dec 25, 2009
I have been answering question about updating Table or DataBase Using DGV. Most the people still having problem about it. Being honest with all of you, I don't know why?
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Sep 28, 2010
Here is the error: Dynamic SQL generation for the UpdateCommand is not supported against a SelectCommand that does not return any key column information.When I click the save button, the system must update its 2 table PurchaseOrderTable and ReceiveOrderTable.
Here is my
For ct As Integer = 0 To stat.Rows.Count - 1
If CStr(stat.Rows(ct)("PO_Product_Name")) = dgvSalesEntry.Rows(ai).Cells(2).Value Then
[code].....
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Feb 20, 2008
Code:
Tables:
- Company
- Department
- Employee
- CertificationA
- CertificationB
I am trying to return a recordset that gives some summary information about each company. The fields in my returned recordset should look like the following.
Company.Name, NumberOfDepartments, NumberOfEmployees, NumberOfCertificationA, NumberOfCertificationACompleted, NumberOfCertificationB, NumberOfCertificationBCompleted
There are actually about 10 different Certification tables but, with Certification A and B you should get the hang of it. When an employee starts a certifaction, a record is added to the that certification table.Below is a query I wrote that works (gets me the data I need), but I am unsure if it is the most efficient way. There will be quite a lot of data so performance is an issue.
Code:
Dim sqlNumberOfDepartments As String
sqlNumberOfDepartments = _
"(SELECT COUNT(*) " & _
"FROM DEPARTMENT " & _
[code].....
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Dec 21, 2011
How to Query multiple tables in a dataset to form single consolidated table without using any external database. I know this can be done using 'JOIN' in SQl.
Now my condition is I have multiple tables filled with data in a dataset and each table is interrelated with a common 'column'. For example ,
Table 1
ID
Name
1
[Code].....
Here I mentioned only two tables but in my case there are many tables. I need a generic answer for this dynamic query .
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Jan 21, 2012
how to input data in mysql, different tables with one query?is it possible to do in gridview in vb.net 2008?
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Dec 7, 2010
I have a VB .Net linq query that I want to return values from two tables. I currently have this:
Dim query = (From c In db.Client _
Join u In db.Users _
On u.UserID Equals c.UserID _
Where (c.ClientID = 1)
Select c, u).ToList
query (System.Collections.Generic.List(Of )) returns several rows as expected each item containing a c and a u.
How do I iterate through the queries collection?
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Apr 17, 2011
How to JOIN tables on nullable columns? I have following LINQ-query, RMA.fiCharge can be NULL:
Dim query = From charge In Services.dsERP.ERP_Charge _
Join rma In Services.dsRMA.RMA _
On charge.idCharge Equals rma.fiCharge _
Where rma.IMEI = imei
Select charge.idCharge
I get a "Conversion from type 'DBNull' to type 'Integer' is not valid" in query.ToArray():
Dim filter = _
String.Format(Services.dsERP.ERP_Charge.idChargeColumn.ColumnName & " IN({0})", String.Join(",", query.ToArray))
So I could append a WHERE RMA.fiCharge IS NOT NULL in the query. But how to do that in LINQ or is there another option?
The problem was that the DataSet does not support Nullable-Types but generates an InvalidCastException if you query any NULL-Values on an integer-column. The modified LINQ-query from dahlbyk works with little modification. The DataSet generates a boolean-property for every column with AllowDbNull=True, in this case IsfiChargeNull.
Dim query = From charge In Services.dsERP.ERP_Charge _
Join rma In (From rma In Services.dsRMA.RMA _
Where Not rma.IsfiChargeNull
Select rma)
On charge.idCharge Equals rma.fiCharge _
Where rma.IMEI = imei
Select charge.idCharge
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Dec 16, 2011
I have a MySQL database with a table called "Locations" which looks a bit like this
id | name | other parameters
1 | shop1 | blah
2 | shop2 | blah
[Code]....
This works, but it is inefficient calling the database through the loop, how do I avoid this?
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