Lag function.
Declaration Syntax| C# | Visual Basic | Visual C++ |
public static readonly ExprFunction.ExprFunction..::ExprFunctionOp LAG
Public Shared ReadOnly LAG As ExprFunction..::ExprFunctionOp
public: static initonly ExprFunction..::ExprFunctionOp^ LAG
Remarks
Returns a value in a row a specified number of rows
from a current row. LAG provides access to a row at
a given offset prior to the current position. The offset is
specified with the decPlaces parameter
of the ExprFunction constructor.