Questions tagged [datareader]

A DataReader reads a forward-only stream of rows from a data source.

A DataReader reads a forward-only stream of rows from a data source. This tag is for questions about creating or using a datareader in code.

782 questions
-3
votes
1 answer

Sort an excel file by date in Python

I want to extract some data based on date in an imported excel file in python. I want to be able to give the start date and end date and get the data for that specific period. I tried different ways to install pandas_datareader to use the following…
Nicole
  • 13
  • 3
-4
votes
4 answers

How to avoid Tostring exception if string is null?

I want to convert the data row value to sring as follows. userGuid = dr["user_guid"].ToString(); It may contains Guid or null(Not string empty). If it contains null i got the exception. How can i overcome this..
Venkatesh
  • 192
  • 3
  • 15
1 2 3
…
52
53