Access :: Retrieving Records From Db?
May 31, 2010i need to retrieve all the records present in a database
iam using the following code but it fails to show any record
Dim con As New System.Data.OleDb.OleDbConnection
Dim myPath As String
Similar Messages:
Access :: Retrieving Records In Faster Way From Database?
Apr 13, 2010I have table in database in which near about 2 lac records are available.
I am using access as database.
How can i get the particular row or records from the database in a minimal time
I want data to be retrieved faster
.net - More Effecient SQL For Retrieving Thousands Of Records On A Vew?
Oct 5, 2010I am using Linq to Sql as my ORM and I have a list of Ids (up to a few thousand) passed into my retriever method, and with that list I want to grab all User records that correspond to those unique Ids. To clarify, imagine I have something like this:
List<IUser> GetUsersForListOfIds(List<int> ids)
{
using (var db = new UserDataContext(_connectionString))
{
var results = (from user in db.UserDtos [code]....
Essentially that gets translated into sql as select * from dbo.Users where userId in ([comma delimmited list of Ids])I'm looking for a more efficient way of doing this. The problem is the in clause in sql seems to take too long (over 30 seconds).
DataSource Controls :: Retrieving Records From DB Using SQL Class
Feb 3, 2011When I used the (way #1) below I could retrieve search result from my DB
Way #1:
[Code]....
But When I use( way#2) "separating my code to Presentation layer and data access layer ( using SQL HELPER CLASS )"
Way # 2
Presentation layer: protected void btn_Search_Advance_Click(object sender, EventArgs e)
[Code]....
data access layer:
[Code]....
I keep getting this error: Procedure or function 'SP_Search' expects parameter '@SEARCHTYPE', which was not supplied.
Databases :: Retrieving Records From Oracle Is Slow?
Sep 29, 2010I have created a table in my Oracle database and am trying to add / edit / delete/ query the records. This table already has 4000000 records. Now when I try to query the database, it takes close to 3 minuetes to return records. I have tried creating indexes, but was not successfull so far.
Following is the structure:
User : varchar(20)
Fac : varchar(10)
Prm: varchar(100)
I am using the following code in VS2005:
[Code]....
SQL Server :: Retrieving Records Based On Two Dates And Two Times?
Jan 17, 2011When a user inserts a record it automatically stores the Date and Time that the record was created in column called CreatedDate.
Now what I am looking to do is retrieve the records between two days - which isnt a problem really, I am doing this....
[Code]....
@StartDate and @EndDate come from Calendar selected dates.
@StartTime and @EndTime come from two textboxes.
Access :: Insert Records Into Access (not Inserting Null Values)?
Nov 12, 2010I have a SQL database. I am getting a datatable from SQL. In SQL Query the table is having null values in the output. But when it is coming to the front end, the null values are replaced by empty values.
So in the front end in the datatable i am having empty values in some cells. I am trying to insert this datatable into access. For this i am using following code...
OleAdpData.InsertCommand.Connection = OleConn; // OleConn is the OleDbConnection
OleAdpData.InsertCommand.Connection.Open();
OleAdpData.Update(dtData); // dtData is the datatable
OleAdpData.InsertCommand.Connection.Close();
It is inserting the datatable to access database. But it is inserting the empty spaces as present in the datatable. I want to insert NULL into the cells in access datatable where the cells are empty. Where should i add my logic for this.
Access :: Retrieving A Value From Database?
Aug 20, 2010I want to be able to take a select statement like: SELECT password FROM table WHERE user_name = @user_name and compare it with what was entered in a form text box. I have tried:
AccessDataSource1.SelectParameters("password").DefaultValue
= TextBox1.Text
AccessDataSource1.Select() (not sure how this works or what to set it equal to)
I also tried to connect to the database with a basic ADO connection that I got off another forum, with no luck
ADO.NET :: Retrieving An Image From SQL Into Data Access Layer?
Feb 28, 2011I'm trying to retrive images from SQL (2005) using ASP.NET 2008
At present I have a business object layer and a data access layer to get some data from the database. This works fine but now, i would like to also retrive an image along with the data.
part of my business object layer is shown below, how can i incorporate the image into this.
I have a DLL file which will take care of displaying the image in the web page once i have retrived it.
[Code]....
Access :: Retrieving 'Modified' Property From Table?
Feb 24, 2010I'm trying to connect to a MS Access database, loop through all db tables and read the 'modified' timestamp, how to achieve that. Using 'Microsoft.Jet.OLEDB.4.0' driver and C#.
View 3 RepliesAccess :: Get Records Where Certain Fields Are Empty?
Jun 7, 2010I am tryin to get records where certain fields are empty, but the following sql does not give me correct result.
SELECT [specimen Type], [Year], [Lab Number]
From [PET Fish] where
ltrim(rtrim([Diagnosis])) = '' or
ltrim(rtrim([Results])) = '' or
ltrim(rtrim([Sign out Date])) = ''
It should return all records, but it returns none.
Access :: Delete All Records In The Database?
May 17, 2010I am select one mdb database from open dialog box.All records in the database (all table data value)will automatically delete. How to implement this concept.
View 2 RepliesAccess :: SQL - Dividing The Count Of 2 Records?
Aug 24, 2010I have a problem that I cannot seem to resolve. We are using an access database to store data from a Quality Assurance Tool. I need to calculate an average on a specific column in the table, however the SQL statement needs to count the number of records that contain "0.1" and divide it by the total number of records in the table. This data is then displayed in an ASP Page.
The field name is 1.
Here is the SQL:
StrSQL = "(Select Count([1]) FROM cservice Where [1]=0.1) / (Select Count([1]) FROM cservice) As questaverage "
SQL Server :: How To Upload New Records On Access Table
Nov 9, 2010i have xyz.mdf file on live server every day i want to upload records on it for that i m downloading that file , make a changes on it and upload it . which is very time consuming and not a good practice is there any tool or any simple code i can write to do this for life time.
for sql i know there is a tool sqlpublishwizard which generate a query from selected table and that we can run directly on live server query analyzer and we can get the new records.
Access :: How To Display Duplicated Records Only From The Same Table
Mar 31, 2011I am developing a web application and I am using access as a database. I would like to be displaying duplicated records only from a table. This table has three columns, column1, Column2, and Column3. Column1 and Column 2 have same duplicated values and column3 is unique. The details are as following
column1, Column2, Column3
Red park 4
Blue park 7
Red park 5
Yellow Cann 9
Yellow Cann 12
Now I want when I run the sql I get the following results;
Red park 5
Red park 4
Yellow Cann 9
Yellow Cann 12
Access :: Update Records Using This GridView Control?
Oct 12, 2010I need to update records using this GridView control. Basically, I would click the IsActive checkbox for it to update the record.
But I get this message:-
data type mismatch in criteria expression.
[Code]....
Access :: Delete Multiple Records From Database?
Feb 21, 2011I am trying to delete multiple records from an access databse with ASP.NET VB but I'm doing something very wrong .....
Here is my code ...
[Code]....
I would also like to know once I get this working how I would delete, additional tables linked to this table by another field not ID ??
Access :: Database Deletes Records When Connect?
Oct 6, 2010I have a problem regarding database. I write to the database fine with this code:
[Code]....
When I close the application and view the Database with access.. the records are added ok, but when I start the application the records are deleted. This is what I have in the Form_Load:
[Code]....
Access :: Move Records From One Table To Another In Microsoft?
Mar 25, 2011How can I move records from one table to another in Microsoft Access?. I would like to be using an sql.
View 4 RepliesStoring Images Into Access Database Along With Page Per Records?
Aug 12, 2010i m developing website using asp.net with microsoft access 2003 i have product details along with the images now i want to add this images into database but how i add this pictures what code is use if there are 100 products with 100 images i want to show 10 records per page i need also code of that
View 3 RepliesStoring Images Into Access Database Along With Page Per Records
Aug 12, 2010i m developing website using asp.net with microsoft access 2003 i have product details along with the images now i want to add this images into database but how i add this pictures what code is use if there are 100 products with 100 images i want to show 10 records per page i need also code of that
View 17 RepliesAccess :: Navigating Database Records To The Next Page In Web Form?
Dec 28, 2010I am new to ASP.NET. I have encountered a problem in navigating the database records that is displayed in the web form , the Next and Previous buttons. I have 4 imageboxes and 2 textboxes under each image box for displaying database records.
I am currently using an Access database with a table "Images" and there are 4 columns in it. "ImageID", "ImageDescription","ImageofPicture","Description".
My Code is below:
[Code]....
DataSource Controls :: Writing Records To Access Database
Jun 4, 2010I am creating an insert statement in my c# code to insert records to an access database table. I am getting the error copied below using c# code. When I copy the generated insert statement from the console and run this on my access database, it succesfully appends a record in the table.Insert statement generated:
insert into [Pet Fish-log 2010] ([Specimen Type], Year, [Lab Number], [Last Name], [First Name], [Middle Initial], Gender, [Date of Birth], [Collection Date], [Date Received], Client, [Tissue Type], [Block Number],
[code]......
Access :: Retieving Records From Database - To Retrieve 11 Columns, 7 Of Them Are Empty ?
Aug 10, 2010 -7vf- I write a program by c# to check and retrieve data from database
The problrm:I have one table(1), I want to make update for that table(1) that is by compare the one column in table(2) with the right side from one column in table(1), so if there is any similarity it will retrieve the data and if there is no match just it will make the record empty(null) "the data type of retrieving columns: number 'double'", but the problems is:
I try to retrieve 11 columns, 7 of them are empty .the program run with out error ,but it will retrieve some records with full data 11 columns, but some of records has only 5 columns have data and 7 columns are empty (these records when I run the program did not retrive any columns, it give me empty records!!)
this is the code :
while (or.Read())
{ or.GetValues(field); OdbcCommand oc2=null;
[code]....
I want to retrive all data which are empty or null and all data
C# - Pagination Improvements In Grids / Getting All Records Again From Database When Try To Access Next Page
Dec 22, 2010I currently have a datagrid bound to a table with tens of thousands of records. I display the datagrid using the existing asp.net 2.0. I show ten records at a time.
My problem is whenever I try to access the next page, I gets all the records again from the database and then displays the ones that are required. This is slowing down the app. Is there feature within .net 2.0 which will help me optimize this issue? I cant use third party controls or ajax.
UPDATE
I cant use SQL to get 10 records at a time as well. Without changing any existing business logic or data retrieval, I want to do this.
