Memory Exception Occurred while fetching data from SQL for Bulk insert












0















I just tried to bulk insert data which results to system.out.memory exception was thrown Even though the Ram as 260 GB and SQL Standard Edition 2017. Records was around 1 million , please give me any solution with my below code



 DataTable table = new DataTable();
// read the table structure from the database
SqlDataAdapter adapter = new SqlDataAdapter("select * from xxxxx", constr);
adapter.SelectCommand.CommandTimeout = 0;
adapter.Fill(table);
Console.WriteLine();
Console.WriteLine(table.Rows.Count);
Console.WriteLine(" Table End time..");
Console.WriteLine(DateTime.Now);
Console.WriteLine("end----)";
Console.WriteLine();
SqlBulkCopy bulk = new SqlBulkCopy(constr2);
bulk.DestinationTableName = "xxxxxx";
bulk.WriteToServer(table);
Console.WriteLine()









share|improve this question

























  • The title says that a timeout occurred and the question says that memory was exhausted. Maybe you should edit your question so that it doesn't contradict itself.

    – jmcilhinney
    Nov 23 '18 at 13:06











  • So, when you did some proper testing and started of fetching a small number of records and gradually increased that number until it failed, what was the largest number of records you could successfully retrieve?

    – jmcilhinney
    Nov 23 '18 at 13:30











  • The best way is to do it all through the database with database links. If not, your option would be to do it in batch of say 100,000 records.

    – the_lotus
    Nov 23 '18 at 13:37











  • There's no need to buffer all the rows in client memory like you're doing. Instead open a DataReader on the source query and pass that to SqlBulkCopy. SqlBulkCopy.WriteToServer(DbDataReader) docs.microsoft.com/en-us/dotnet/api/….

    – David Browne - Microsoft
    Nov 23 '18 at 14:28











  • The maximum rows I can fetch us around 585922 anything more than that results memory exception

    – user2302158
    Nov 24 '18 at 14:07
















0















I just tried to bulk insert data which results to system.out.memory exception was thrown Even though the Ram as 260 GB and SQL Standard Edition 2017. Records was around 1 million , please give me any solution with my below code



 DataTable table = new DataTable();
// read the table structure from the database
SqlDataAdapter adapter = new SqlDataAdapter("select * from xxxxx", constr);
adapter.SelectCommand.CommandTimeout = 0;
adapter.Fill(table);
Console.WriteLine();
Console.WriteLine(table.Rows.Count);
Console.WriteLine(" Table End time..");
Console.WriteLine(DateTime.Now);
Console.WriteLine("end----)";
Console.WriteLine();
SqlBulkCopy bulk = new SqlBulkCopy(constr2);
bulk.DestinationTableName = "xxxxxx";
bulk.WriteToServer(table);
Console.WriteLine()









share|improve this question

























  • The title says that a timeout occurred and the question says that memory was exhausted. Maybe you should edit your question so that it doesn't contradict itself.

    – jmcilhinney
    Nov 23 '18 at 13:06











  • So, when you did some proper testing and started of fetching a small number of records and gradually increased that number until it failed, what was the largest number of records you could successfully retrieve?

    – jmcilhinney
    Nov 23 '18 at 13:30











  • The best way is to do it all through the database with database links. If not, your option would be to do it in batch of say 100,000 records.

    – the_lotus
    Nov 23 '18 at 13:37











  • There's no need to buffer all the rows in client memory like you're doing. Instead open a DataReader on the source query and pass that to SqlBulkCopy. SqlBulkCopy.WriteToServer(DbDataReader) docs.microsoft.com/en-us/dotnet/api/….

    – David Browne - Microsoft
    Nov 23 '18 at 14:28











  • The maximum rows I can fetch us around 585922 anything more than that results memory exception

    – user2302158
    Nov 24 '18 at 14:07














0












0








0








I just tried to bulk insert data which results to system.out.memory exception was thrown Even though the Ram as 260 GB and SQL Standard Edition 2017. Records was around 1 million , please give me any solution with my below code



 DataTable table = new DataTable();
// read the table structure from the database
SqlDataAdapter adapter = new SqlDataAdapter("select * from xxxxx", constr);
adapter.SelectCommand.CommandTimeout = 0;
adapter.Fill(table);
Console.WriteLine();
Console.WriteLine(table.Rows.Count);
Console.WriteLine(" Table End time..");
Console.WriteLine(DateTime.Now);
Console.WriteLine("end----)";
Console.WriteLine();
SqlBulkCopy bulk = new SqlBulkCopy(constr2);
bulk.DestinationTableName = "xxxxxx";
bulk.WriteToServer(table);
Console.WriteLine()









share|improve this question
















I just tried to bulk insert data which results to system.out.memory exception was thrown Even though the Ram as 260 GB and SQL Standard Edition 2017. Records was around 1 million , please give me any solution with my below code



 DataTable table = new DataTable();
// read the table structure from the database
SqlDataAdapter adapter = new SqlDataAdapter("select * from xxxxx", constr);
adapter.SelectCommand.CommandTimeout = 0;
adapter.Fill(table);
Console.WriteLine();
Console.WriteLine(table.Rows.Count);
Console.WriteLine(" Table End time..");
Console.WriteLine(DateTime.Now);
Console.WriteLine("end----)";
Console.WriteLine();
SqlBulkCopy bulk = new SqlBulkCopy(constr2);
bulk.DestinationTableName = "xxxxxx";
bulk.WriteToServer(table);
Console.WriteLine()






sql sql-server vb.net






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 23 '18 at 13:12







user2302158

















asked Nov 23 '18 at 12:49









user2302158user2302158

77210




77210













  • The title says that a timeout occurred and the question says that memory was exhausted. Maybe you should edit your question so that it doesn't contradict itself.

    – jmcilhinney
    Nov 23 '18 at 13:06











  • So, when you did some proper testing and started of fetching a small number of records and gradually increased that number until it failed, what was the largest number of records you could successfully retrieve?

    – jmcilhinney
    Nov 23 '18 at 13:30











  • The best way is to do it all through the database with database links. If not, your option would be to do it in batch of say 100,000 records.

    – the_lotus
    Nov 23 '18 at 13:37











  • There's no need to buffer all the rows in client memory like you're doing. Instead open a DataReader on the source query and pass that to SqlBulkCopy. SqlBulkCopy.WriteToServer(DbDataReader) docs.microsoft.com/en-us/dotnet/api/….

    – David Browne - Microsoft
    Nov 23 '18 at 14:28











  • The maximum rows I can fetch us around 585922 anything more than that results memory exception

    – user2302158
    Nov 24 '18 at 14:07



















  • The title says that a timeout occurred and the question says that memory was exhausted. Maybe you should edit your question so that it doesn't contradict itself.

    – jmcilhinney
    Nov 23 '18 at 13:06











  • So, when you did some proper testing and started of fetching a small number of records and gradually increased that number until it failed, what was the largest number of records you could successfully retrieve?

    – jmcilhinney
    Nov 23 '18 at 13:30











  • The best way is to do it all through the database with database links. If not, your option would be to do it in batch of say 100,000 records.

    – the_lotus
    Nov 23 '18 at 13:37











  • There's no need to buffer all the rows in client memory like you're doing. Instead open a DataReader on the source query and pass that to SqlBulkCopy. SqlBulkCopy.WriteToServer(DbDataReader) docs.microsoft.com/en-us/dotnet/api/….

    – David Browne - Microsoft
    Nov 23 '18 at 14:28











  • The maximum rows I can fetch us around 585922 anything more than that results memory exception

    – user2302158
    Nov 24 '18 at 14:07

















The title says that a timeout occurred and the question says that memory was exhausted. Maybe you should edit your question so that it doesn't contradict itself.

– jmcilhinney
Nov 23 '18 at 13:06





The title says that a timeout occurred and the question says that memory was exhausted. Maybe you should edit your question so that it doesn't contradict itself.

– jmcilhinney
Nov 23 '18 at 13:06













So, when you did some proper testing and started of fetching a small number of records and gradually increased that number until it failed, what was the largest number of records you could successfully retrieve?

– jmcilhinney
Nov 23 '18 at 13:30





So, when you did some proper testing and started of fetching a small number of records and gradually increased that number until it failed, what was the largest number of records you could successfully retrieve?

– jmcilhinney
Nov 23 '18 at 13:30













The best way is to do it all through the database with database links. If not, your option would be to do it in batch of say 100,000 records.

– the_lotus
Nov 23 '18 at 13:37





The best way is to do it all through the database with database links. If not, your option would be to do it in batch of say 100,000 records.

– the_lotus
Nov 23 '18 at 13:37













There's no need to buffer all the rows in client memory like you're doing. Instead open a DataReader on the source query and pass that to SqlBulkCopy. SqlBulkCopy.WriteToServer(DbDataReader) docs.microsoft.com/en-us/dotnet/api/….

– David Browne - Microsoft
Nov 23 '18 at 14:28





There's no need to buffer all the rows in client memory like you're doing. Instead open a DataReader on the source query and pass that to SqlBulkCopy. SqlBulkCopy.WriteToServer(DbDataReader) docs.microsoft.com/en-us/dotnet/api/….

– David Browne - Microsoft
Nov 23 '18 at 14:28













The maximum rows I can fetch us around 585922 anything more than that results memory exception

– user2302158
Nov 24 '18 at 14:07





The maximum rows I can fetch us around 585922 anything more than that results memory exception

– user2302158
Nov 24 '18 at 14:07












1 Answer
1






active

oldest

votes


















0














Maybe something like this?



Imports System.Data.OleDb
Imports System.Data.SqlClient
Imports System.Data

Public Class Form1

Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click


Dim ExcelConnection As New System.Data.OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:your_pathBook1.xls;Extended Properties=Excel 8.0;")

ExcelConnection.Open()

Dim expr As String = "SELECT * FROM [Sheet1$]"
Dim objCmdSelect As OleDbCommand = New OleDbCommand(expr, ExcelConnection)
Dim objDR As OleDbDataReader
Dim SQLconn As New SqlConnection()
Dim ConnString As String = "Data Source=DB_Name;Initial Catalog=Northwind.MDF;Trusted_Connection=True;"
SQLconn.ConnectionString = ConnString
SQLconn.Open()

Using bulkCopy As SqlBulkCopy = New SqlBulkCopy(SQLconn)

bulkCopy.DestinationTableName = "tblTest"

Try
objDR = objCmdSelect.ExecuteReader
bulkCopy.WriteToServer(objDR)
ExcelConnection.Close()

'objDR.Close()
SQLconn.Close()
Catch ex As Exception
MsgBox(ex.ToString)
End Try
End Using

End Sub

End Class





share|improve this answer
























  • Iam not using Excel here, I am just retrieving data from one database and inserting to another

    – user2302158
    Nov 26 '18 at 2:06











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









0














Maybe something like this?



Imports System.Data.OleDb
Imports System.Data.SqlClient
Imports System.Data

Public Class Form1

Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click


Dim ExcelConnection As New System.Data.OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:your_pathBook1.xls;Extended Properties=Excel 8.0;")

ExcelConnection.Open()

Dim expr As String = "SELECT * FROM [Sheet1$]"
Dim objCmdSelect As OleDbCommand = New OleDbCommand(expr, ExcelConnection)
Dim objDR As OleDbDataReader
Dim SQLconn As New SqlConnection()
Dim ConnString As String = "Data Source=DB_Name;Initial Catalog=Northwind.MDF;Trusted_Connection=True;"
SQLconn.ConnectionString = ConnString
SQLconn.Open()

Using bulkCopy As SqlBulkCopy = New SqlBulkCopy(SQLconn)

bulkCopy.DestinationTableName = "tblTest"

Try
objDR = objCmdSelect.ExecuteReader
bulkCopy.WriteToServer(objDR)
ExcelConnection.Close()

'objDR.Close()
SQLconn.Close()
Catch ex As Exception
MsgBox(ex.ToString)
End Try
End Using

End Sub

End Class





share|improve this answer
























  • Iam not using Excel here, I am just retrieving data from one database and inserting to another

    – user2302158
    Nov 26 '18 at 2:06
















0














Maybe something like this?



Imports System.Data.OleDb
Imports System.Data.SqlClient
Imports System.Data

Public Class Form1

Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click


Dim ExcelConnection As New System.Data.OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:your_pathBook1.xls;Extended Properties=Excel 8.0;")

ExcelConnection.Open()

Dim expr As String = "SELECT * FROM [Sheet1$]"
Dim objCmdSelect As OleDbCommand = New OleDbCommand(expr, ExcelConnection)
Dim objDR As OleDbDataReader
Dim SQLconn As New SqlConnection()
Dim ConnString As String = "Data Source=DB_Name;Initial Catalog=Northwind.MDF;Trusted_Connection=True;"
SQLconn.ConnectionString = ConnString
SQLconn.Open()

Using bulkCopy As SqlBulkCopy = New SqlBulkCopy(SQLconn)

bulkCopy.DestinationTableName = "tblTest"

Try
objDR = objCmdSelect.ExecuteReader
bulkCopy.WriteToServer(objDR)
ExcelConnection.Close()

'objDR.Close()
SQLconn.Close()
Catch ex As Exception
MsgBox(ex.ToString)
End Try
End Using

End Sub

End Class





share|improve this answer
























  • Iam not using Excel here, I am just retrieving data from one database and inserting to another

    – user2302158
    Nov 26 '18 at 2:06














0












0








0







Maybe something like this?



Imports System.Data.OleDb
Imports System.Data.SqlClient
Imports System.Data

Public Class Form1

Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click


Dim ExcelConnection As New System.Data.OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:your_pathBook1.xls;Extended Properties=Excel 8.0;")

ExcelConnection.Open()

Dim expr As String = "SELECT * FROM [Sheet1$]"
Dim objCmdSelect As OleDbCommand = New OleDbCommand(expr, ExcelConnection)
Dim objDR As OleDbDataReader
Dim SQLconn As New SqlConnection()
Dim ConnString As String = "Data Source=DB_Name;Initial Catalog=Northwind.MDF;Trusted_Connection=True;"
SQLconn.ConnectionString = ConnString
SQLconn.Open()

Using bulkCopy As SqlBulkCopy = New SqlBulkCopy(SQLconn)

bulkCopy.DestinationTableName = "tblTest"

Try
objDR = objCmdSelect.ExecuteReader
bulkCopy.WriteToServer(objDR)
ExcelConnection.Close()

'objDR.Close()
SQLconn.Close()
Catch ex As Exception
MsgBox(ex.ToString)
End Try
End Using

End Sub

End Class





share|improve this answer













Maybe something like this?



Imports System.Data.OleDb
Imports System.Data.SqlClient
Imports System.Data

Public Class Form1

Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click


Dim ExcelConnection As New System.Data.OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:your_pathBook1.xls;Extended Properties=Excel 8.0;")

ExcelConnection.Open()

Dim expr As String = "SELECT * FROM [Sheet1$]"
Dim objCmdSelect As OleDbCommand = New OleDbCommand(expr, ExcelConnection)
Dim objDR As OleDbDataReader
Dim SQLconn As New SqlConnection()
Dim ConnString As String = "Data Source=DB_Name;Initial Catalog=Northwind.MDF;Trusted_Connection=True;"
SQLconn.ConnectionString = ConnString
SQLconn.Open()

Using bulkCopy As SqlBulkCopy = New SqlBulkCopy(SQLconn)

bulkCopy.DestinationTableName = "tblTest"

Try
objDR = objCmdSelect.ExecuteReader
bulkCopy.WriteToServer(objDR)
ExcelConnection.Close()

'objDR.Close()
SQLconn.Close()
Catch ex As Exception
MsgBox(ex.ToString)
End Try
End Using

End Sub

End Class






share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 24 '18 at 15:18









ryguy72ryguy72

4,1861819




4,1861819













  • Iam not using Excel here, I am just retrieving data from one database and inserting to another

    – user2302158
    Nov 26 '18 at 2:06



















  • Iam not using Excel here, I am just retrieving data from one database and inserting to another

    – user2302158
    Nov 26 '18 at 2:06

















Iam not using Excel here, I am just retrieving data from one database and inserting to another

– user2302158
Nov 26 '18 at 2:06





Iam not using Excel here, I am just retrieving data from one database and inserting to another

– user2302158
Nov 26 '18 at 2:06


















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