sqldatareader

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SQL Server and SqlDataReader - Trillion Records - Memory

I\'ve never tried this - so I don\'t know if I\'d run into memory issues. But can a SqlDataReader read a trillion records? It\'s all streamed correct? I\'m a little green to what the SQL/TDS protocol[详细]

2022-12-13 18:15 分类：问答
Lightweight readonly alternative to DataTable for storing data from SqlDataReader?

I am using SqlDa开发者_开发知识库taReader to read data from SQL Server. However sometimes I want to cache my data in memory as a read-only lightweight connection-free object. I couldn\'t find any opti[详细]

2022-12-12 22:38 分类：问答
How Can I check whether DataReader has Data or not?

Again I have problem with checking whether DataReader object has data or not? Dim cmd as SqlCommand Dim drd as SqlDataReader[详细]

2022-12-12 14:08 分类：问答
why I can't use two datareader in one procedure?

can you explain me why I can\'t use two datareader in on procedure? Here is the sample code: Private Sub 开发者_运维知识库 Do_Execute()[详细]

2022-12-12 10:15 分类：问答
SQL Data Reader - handling Null column values

I\'m using a SQLdatareader to build POCOs from a database. The code works except when it encounters a null value in the database. For example, if the FirstName column in the database contains a null v[详细]

2022-12-11 21:07 分类：问答
c#/sql-server, trying to get data to two ddl's from two tables...in one sqlDataReder

Well, i am tring to do something nice (nice for me, simple for you guys), i was told i can do it, but i have no idea where to start.[详细]

2022-12-11 20:23 分类：问答
Performance Concerns between DataTable and SqlDataReader to fill Data with FlexGrid

Which one is more faster between DataTable and SqlDataReader while I\'m try开发者_如何学Going to fill Data into FlexGrid with VB.NET?Depends what are you trying to do, if you just need to get x rows t[详细]

2022-12-10 09:29 分类：问答
DataReader associated with this Command which must be closed first

I am getting the following error; \"There is already an open DataReader associated with this Command which must be closed first.\"[详细]

2022-12-09 17:26 分类：问答
Advantages of using SQLDataReader over a reader that implements IDatareader?

What are the advantages of using a SQLDataReader as opposed to a reader that just implements IDatareader if I\'m using SQL Server >= 2005?[详细]

2022-12-08 10:15 分类：问答
SqlDataReader.Read() always returning false

I have the following situation: using (SqlConnection conexao = new SqlConnection(ConnectionString)) { SqlCommand comando = new SqlCommand(query, conexao);[详细]

2022-12-08 05:54 分类：问答