datareader

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NpgSQLdataReader GetOrdinal throwing exceptions.. any way around?

I built a wrapper around NpgSQL for a bunch of the methods I usually use in my projects\' DAL. Two of them, I usually use to fill DTOs straight from a DataReader. Usually in a fill helper method, i\'l[详细]

2022-12-20 12:59 分类：问答
ASP.net DataReader execution technique

I am a beginner. I heard that DataReader works onforward only readonly fashion and at a time it will read a single record.Suppose when i execute the below code[详细]

2022-12-15 13:16 分类：问答
DataReader best-practices

Similar to this question, but the answers never really got around to what I want to know.Is there any standards around getting values from a DataReader?I.e., is this[详细]

2022-12-13 20:09 分类：问答
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
mySql problem in MySqlDataReader

MySqlDataReaderrdr = cmd.ExecuteReader(); i have a some information in my mysqldatareader. how can i show it on ou开发者_如何学运维r web-pages[详细]

2022-12-13 05:37 分类：问答
Can a binary search be done in a database in SQL?

OK.开发者_StackOverflow中文版 I am using the C# programming language to access a simple database (on Microsoft SQL Server)[详细]

2022-12-12 13:36 分类：问答
Java make a copy of a reader

I have a BufferedReader looping through a file. When I hit a specific case, I would like to continue looping using a different instance of the reader but starti开发者_StackOverflow社区ng at this point[详细]

2022-12-12 09:42 分类：问答
How to count rows in MySqlDataReader?

I have successfully switched my project from odbc.datareader t开发者_运维知识库o mysql.datareader. The problem is that with the first one /odbc datareader), the AffectedRows property retrieves the num[详细]

2022-12-11 16:03 分类：问答
Example of generic DataReader code (.net)

As my experience with .Net really began as working on existing in-house applications for a company, I feel I\'ve picked up so many bad coding practices without realising it. One that i am desperately[详细]

2022-12-10 11:54 分类：问答