Search Multiple Datatables For A Value?
Jun 3, 2011
Every table I have has an 'UpdatedBy' field which lists the user who last made an update to the record. I need a way of searching every datatable for that username and returning the count of the rows where the LastUpdated field is equal to a parameterized username. How can this be accomplished without writing a seperate query for each datatable that does the same thing and running each query one at a time? I'm not sure if this can accomplished somehow in the dataset itself or if a SQL Function could do this.
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Nov 25, 2010
I am trying to create a stock scanner which allows users to filter stocks based on multiple criteria that they select. Like the following example with 2 criteria:
Criteria 1 Filtered Result: StockA, StockB, StockC, StockD
Criteria 2 Filtered Result: Stock B, Stock C, StockE, StockF
SCANNER RESULT: Stock B, StockC (ideally this result would be displayed in a GridView)
[code]......
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Apr 21, 2011
I'm not even sure what I'm asking is even possible, but here goes:
Is there a way to loop through a sqlDataAdapter to find multiple tables?
Currently I have a module that you pass in an object and it automatically fills the parameters of a stored procedure with the values of the object. It works great, except when the stored procedure returns more than one table, it only returns the first one.
Here is what I tried to get to that second table:
Dim ds As New DataSet
Dim table As New DataTable
Dim reader As SqlDataReader = command.ExecuteReader
[Code].....
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Apr 6, 2012
I am using Microsoft Access database. Since Access Database Table cannot have more than 255 columns, I am using vertical database partition technique where I have splitted informations into 5 different tables. Each table has 100 columns, and first column is primary key. Now I need to read data from these five tables so that I can export it into Excel file.
[Code]...
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Feb 8, 2012
I have been searching for quite a while about joining multiple datatables via LINQ to dataset (When i say multiple, i don't mean just 2!!!), and it seems there aren't lot of examples in the net. I have seen examples of joining two datatables, done that, no problem there. Now i want to join three datatables. And there's nothing i can find out there.For example i have a 3 datatables:
PERSON (columns: person_id, name, gender_code, ethnic_code)
GENDER (columns: gender_code, gender_description)
ETHNICITY (cols: ethnic_code, ethnic_description)
[code].....
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Jun 1, 2012
I'm having a hard time joining 2 datatables and have the joined datatable as result. First datatable (labels) holds data including a printerid. Second datatable (printers) holds printer references (id > unc). I would like to have as endresult (joined) a datatable with all data from the first datatable with the field (unc) of the second datatable. [Code]
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Mar 4, 2010
Heres my issue, I am retrieving data from xml and populating a DataSet with the results into multiple DataTables but i have an issue where an item is repeated in my input data and it is causing it to exception because of the constraints imposed between these tables. how can i determine if a row exists prior to adding the DataRow and thus not include it in my DataTable?
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Sep 17, 2010
I'm creating an application that will export several datatables into a single Excelspreadsheet, but on different sheet names. How can I do that?
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May 8, 2012
changing the way the site search is done from just search a phrase as one string to searching a phrase "as multiple words" search. For example, if I search "cute puppy" right now, it will search it for "cute puppy" as phrase and won't match just "cute" and "puppy". The way the search is implemented is by passing a search phrase to a Stored Procedure in SQL Server.So now, I need to change to site search so when "cute puppy" is searched, it will search two words.... "cute" and "puppy" instead of just "cute puppy". Below is how the store procedure is implemented
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
[code].....
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Aug 23, 2009
Im making a search function for an application and they need to be able to search by any value in the DB in any of the three tables. Im wondering the best wayto about this. 2 of the 3 tables have the same columns while the last one is totally different. Below is what I kinda "thought" itd look like but no.
"SELECT * FROM cases, opencases, staff WHERE Crime ='" & txtsearch.Text.ToString & "'"
I need to query the results the user can search for anyterm and if it matches something in the columns it return it to the user. Im wondering if the best way to go about this is to maybe query all the tables and then put all the matching records in a seperate table and the dgv look at that table or how to exactly go about it.
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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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Apr 16, 2012
I would like to search for a member using a text box. i have connected my vb form to an MS access database.I have the following command so far however i would like to search for the forename or the surname, not just the forebame.
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May 27, 2011
I am doing a simple database project.I need to give the input in the database which is an access db from my input form and i have managed to do this part right.then i need to retrieve the details from the db using multiple search fields and show them in the datagrid view.I have 8 search fields(5 textboxes and 3 combo boxes). I also have included 4 other buttons which respectively clears the search boxes;clear the results of the gridview; show all results from the database;go to the input form and offcourse 1 search button.now all the buttons working fine except the search button. actually when i click on the search button if i include sql query for all the search fields only the first one works and also if i have clicked any other buttons before clicking the search button nothing happens, no result is shown and it happens the same if i search once and clicked any other buttons and come back to search, no result. I need to show the results in the gridview depending on the user input on those search criterias. user should be able to search in any combinations.I am using the below codings in my search form. the combo boxes are not bound.datagrid is bound to database though.
Public Class Paxsearchfrm
Private Sub Paxsearchfrm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'TODO: This line of code loads data into the 'LAFDataSet.Table1' table. You can move, or remove it, as needed.
End Sub
[code]....
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Jan 13, 2012
i am creating a program in vb.net and was wondering if there is a way to perform multiple queries with one button without adding a second button. like i have two text boxes, one is for date and the other is for name. what i want to do is if i hit search and both the date and name boxes are filled, i want it to search for the name based on that date. but if only the name is filled i want to search for everything under that name.This is what i have. right now it only does one search:
[Code]...
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Sep 25, 2011
I would like to know how i can create Multiple Search from database?
i find one way [URL]
when i will try to make like that its not created if any one can see to me what is the problem
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Jan 14, 2005
When you do GetFiles() you can specify a search pattern such as *.txt. How can I specify multiple patterns. For example, in windows search you do *.jpg;*.bmp;*.gif. I tried that but no luck and the msdn not work. Is this possible?
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Oct 5, 2011
I am trying to search one column (Titles) of an Access database using an SQL query. The search entry comes from a split string passed to an array and inserted into the SQL command.
This works well, however, the results I get back are for entries containing EITHER of the keywords entered, not entries containing ALL keywords entered.
The code I am using is::::
Private Sub btnSearch_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSearch.Click
dgvSearch.Visible = True
[Code]....
The loop is working, but acting as a new search as opposed to searching the results of the previous search.
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Jun 22, 2010
is there a way i can get my datatable to have multiple constraints that are attached to a unique id? an example of what i'm talking about is if i have a unique machine but it's on many lines, can i show that somehow in a datatable? the reason i'm asking is that i have code that sorts the data by line number and shows the relevant machines in a combo box based on the line selection out of another combo box. i'm having to input the data into the datatable (as a starting point for the data base) and it's very tedious. i'm entering machines that have the same name in multiple rows because the line number is different. i can't figure out how i can add multliple values into my line number column so that it will sort properly when queried.an example of what i'm asking with regard to the datatable is as follows:
Machine LineNumber
slicer Line 1, Line 2, Line 4
conveyor belt Line 1, Line 6
So that when called to fill the combo box, the correct one is called.The code i'm using to sort right now is as follows:
Private Sub linecbo_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles linecbo.SelectedIndexChanged
Dim cline As String
[code]....
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Jan 8, 2009
Mi am creating a program in vb.net and was wondering if there is a way to perform multiple queries with one button without adding a second button.like i have two text boxes, one is for date and the other is for name. what i want to do is if i hit search and both the date and name boxes are filled, i want it to search for the name based on that date. but if only the name is filled i want to search for everything under that name
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Mar 12, 2010
How can I write this
Path = "C:"
For Each FoundFile In My.Computer.FileSystem.GetFiles(Path, FileIO.SearchOption.SearchTopLevelOnly, "FILE*.10") _
And For Each FoundFile In My.Computer.FileSystem.GetFiles(Path, FileIO.SearchOption.SearchTopLevelOnly, "FILE*.09")
'do code
Next My goal is simply to search for multiple file extensions. I cant use FILE* as my search parameter as this returns other files e.g FILE2012.10z which i don't want.
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Jan 8, 2009
I'm trying to find out a way to search multiple arrays for a specific value. I looked through here, yahoo, google and msdn and couldn't find anything specific to what I'm looking for. Don't have any sample code as I'm not quite sure where to start.
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Mar 1, 2012
how to search multiple fields in sql??im using 2 dropdown box for searching
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Jun 18, 2011
I've used an OleDbAdapter to connect to a MS Access database with about 17 fields. I want to be able to search between 1 and all 17 fields for return(s). I have been able to search 3 fields so far (so all 17 will not be a problem), but all 3 fields must be completed or an error occurs (FileNotFoundException was unhandled).[code]...
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Aug 23, 2009
Im making a search function for an application and they need to be able to search by any value in the DB in any of the three tables. Im wondering the best way to go about this. 2 of the 3 tables have the same columns while the last one is totally different. Below is what I kinda "thought" itd look like but no.
"SELECT * FROM cases, opencases, staff WHERE Crime ='" & txtsearch.Text.ToString & "'"
I need to query the results the user can search for anyterm and if it matches something in the columns it return it to the user. Im wondering if the best way to go about this is to maybe query all the tables and then put all the matching records in a seperate table and the dgv look at that table or how to exactly go about it.
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Nov 19, 2011
I created a code that allows me to search inside a RichTextBox...Then the code is as follows:[code]Now with the code that I use today, the MsgBox show me only the first, ie "<b> text1 </ b>" while others are not..
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Jan 4, 2011
I would like to search my database for products from a table(products)The problem is i do not want 600 rows of code with multiple if's.The code looks as following atm(do not want it like this)
Public Function GetSearchResults(ByVal County As Integer, Optional ByVal Searchtext As String = "", Optional ByVal Category As Integer = 0, Optional ByVal SubCategory As Integer = 0) As List(Of Product)
Dim dc As New DataClassesDataContext
[code]....
AND alot of elseifs and so on... The problem is that if the value is 0 at any of the above the search will be for all countys/categorys/headlines.... is there a better way to do this? i mean linq is great there have to be a way to make it more dynamic so i dont need the IFS.
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Apr 6, 2011
I have a textbox with button wired up to a queryextender. My goal is that someone might enter into the textbox a name (e.g. "Dave Mackey") and receive back all relevant results. The problem is that this information is spread across two columns in the underlying database (e.g. FIRST_NAME, LAST_NAME). My code looks like this:
<asp:QueryExtender ID="QueryExtender1" runat="server" TargetControlID="EntityDataSource1" >
<asp:SearchExpression DataFields="first_name,last_name" SearchType="Contains">
[Code]....
If I enter "Mackey" it returns results, but "Dave Mackey" returns no results, I'm assuming b/c it is looking for the entire value in one first (either, but not both together), whereas I want it to return any rows where it finds the entirety even if it is spread across multiple DataFields.
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Aug 14, 2011
I want to produce a search that lets me have multiple search results but it only returns one.[code]...
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May 21, 2012
Currently I am searching through my list to find Customers that match on Address.
I need to match on both address and city. How do I rewrite my lambda Expression to match both criteria?
CustomerList.FindAll(Function(c) c.Address = addressToMatch)
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Mar 21, 2012
[code]the main piece deals with the binding source filter. I've tried or/and. i tried to include that both codes in the string. i don't know what to do again i know you would recommend SQL but i don't know how to use that yet, so could you please recommend some bindingsourcefilter code to assist please. Its for a School project the search window looks like the attached picture
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