I have json which the converted to Dataset. And this data I wanna written to table in SQl. But I don't know how this doing. I did tried doing through SqlBulkCopy but me this don't likes because that needed create other table. And data always different.Thanks.
Related
I have a requirement to merge sql and csv data to data table.
Load part of sql table to dt table works fine... When I try csv read to dt, getting data types not match issue.
As I am new to c# , I do not know how to convert datatypes,
Can some one suggest and guide me to handle this scenario.
Thanks
I'm writing an C# application that watch for newly created xml files, and I want to insert some of the data in these XML files to a SQL database. One file is one row in the database.
What is the best and easiest way to do this?
What I have done so far is to defined a DataTable with the columns I want from the XML. After that I use ReadXML on the DataSet. This give me a DataSet with one table and one row, and the columns I want. So far it's perfect. But I can't find a good way to ONLY insert this new DataRow into my MSSQL database. I don't have any unique ID for that row yet. Would this make it easier? I don't want to map my dataset with the database, I'm only doing an insert...
You can do something like this to get the ID:
string query = "INSERT INTO Employees (EmployeeID, Name, Phone) "+
"OUTPUT INSERTED.EmployeeID "+
"VALUES (NEWID(), 'John Kris', '99-99999')";
Guid lastId = (Guid)command.ExecuteScalar();
The rest of the things you do sound ok for me.
I used LINQ to SQL to solve this. I set it up somewhat like described here:
LINQ to SQL.
On the data context I used InsertOnSubmit.
I have created one DataTable in C# dynamically. I want to insert this whole DataTable in MySql database table.
I am using MySql hence SqlBulkCopy is not an option for me.
I have tried MySqlBulkLoader but it seems it only insert data from file.
I can do it via iterating through every datarow of datatable and insert it to database.
Is there any another way I can achieve multiple inserts into database?
Thanks for any help!
If the number of rows are not much you can simply create an insert statement
INSERT INTO table VALUES (1,2,3), (4,5,6), (7,8,9);
Another article at http://www.codeproject.com/Articles/19727/ADO-NET-Generic-Copy-Table-Data-Function may help.
Though, if the number of rows are high, you can probably create a temporary text file and then use BulkLoader !
I'm trying to store a DataTable into a single column in a SQL Server table. The idea behind this is a user runs a SQL command and the returned output is stored into a datatable, then I want that datatable to be stored into a SQL Server logging table. Later on I want to be able to retrieve that entire datatable back for displaying on a logging aspx page.
Currently I'm just storing it as a big string but that doesn't give me column headers and the formatting is kinda funky as well as being inefficient.
TIA
I would probably convert the datatable to XML and store it into an XML field type if I was going to do what you are trying to do.
Hello you can try with WriteXml
this link give you sample interessant : http://msdn.microsoft.com/fr-fr/library/system.data.datatable.writexml.aspx
Another Idea is to create two tables in your database. It is slightly complex.
One Table contains two columns, Let name the table PTable.
Columns:
ID and ColumnID
ID is the primary key and ColumnID contains the name of your column in datatable
After creating this table create another table. It will consists of three fields. Let name it STable. This table stores the columns of you datatable.
Columns:
stblID, PtblID and PtColumnID
StbID is the primary key in this table, PtblID is the Primary key of PTable and PtColumnID is the ColumnID of PTable. This table stores the rows of table. Now store the data in this table and receive the data when you need it.
and the simplest idea is to create a table in your datbabase having an xml column and store your datatable as an xml.
What is the easiest and most efficient way to insert data from a DataTable into a SQL Server database table? For what it's worth, the DataTable and the database table have matching columns.
What I am doing is transferring data from one database to another (separate instances, so I will be using my application as the intermediate "receiver/sender" of data). I can easily populate a DataTable with a SqlDataAdapater.Fill() call from the source database table. But I'm trying to find the most proficient way to send that DataTable's data to the final destination database table.
Any suggestions/advice/opinions are much appreciated.
EDIT: the destination database table already exists.
You should take a look at the SqlBulkCopy class, particularly the overload of the WriteToServer method that takes a DataTable as a parameter.
If you want to be even more efficient, and you don't have the requirement to materialize the entire table into a DataSet (or, you can process the contents as you move them in a forward-only manner), then use the overload of WriteToServer that takes an IDataReader run your query using the ExecuteReader method on the SqlCommand class instead of using a SqlDataAdapter to load the entire table into memory.