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What are the Technologies for Accessing Database from Visual Basic?set?

Visual Basic Interview Questions and Answers


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85. What are the Technologies for Accessing Database from Visual Basic?set?

DAO, Data Control, RDO, ODBCDIRECT, ADO, ODBC API , 0040.


86. What is the diff between the Create Object and Get object?

Create Object - To create an instance of an object.
Get Object To get the reference to an existing object.


87. What is Mask Edit and why it is used?

Control. Restricted data input as well as formatted data output.


88. What is RdExecDirect?

Bypasses the Creation of a stored procedure to execute the query. Does not apply to Oracle.


89. Different type of Passing Value?

By value, By ref, Optional, Param Array. Note:- Optional keyword cannot be used while declaring arguments for a function using param array.


90. What are types of binding?

Assigning variable with defined memory space.
Late Binding - Memory size is allotted in later stage.
Ex:- Dim x as object
Early Binding - Memory size is allotted while declaring itself. New Key word is important.
Ex:- Dim x as New Object

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