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ADO.NET INTERVIEW QUESTION & ANSWERS

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66. What do managed providers do?
  They provide the interface for communication between data stores and DataSets. The two managed providers for ADO.NET are :
  • SQL
  • ADO
.
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67. What is the use of parameter object?
  Parameter object is used to pass the parameter value to a stored procedure.
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68. What is the difference between an ADO.NET Dataset and an ADO Recordset?
  There are two main differences are :
  • Dataset you an retrieve data from two databases like oracle and sql server and merge them in one dataset.
  • Recordset this is not possible
  • All representation of Dataset is using XML while recordset uses COM.
  • Recordset can not be transmitted on HTTP while Dataset can be.
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69. What are good ADO.NET object(s) to replace the ADO Recordset object?
  DataSet.
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70. What type of data model does an OleDbCommand object fill?
  An ADODataReader object.
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