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DataDirect OpenAccess SDK Help

dam_describeScalarEx

  • Last Updated: May 12, 2026
  • 1 minute read
    • OpenAccess SDK
    • Version 8.1
    • Documentation

This method is used to retrieve the description of the scalar function. When the IP-registered scalar function is called, it can use this API call to get scalar function details. This is useful when the IP registers the same scalar function to evaluate multiple scalar function names or when the scalar function supports a variable number of arguments.

int dam_describeScalarEx(
    long         hValExpList
    StringBuffer pName,
    xo_int       piNoOfActualParams,
    xo_int       piResXoType,
    xo_int       piLength,
    xo_int       piPrecision,
    xo_int       piScale)

Parameters for dam_describeScalarEx

Parameter Type Description
INPUT
hValExpList long The handle of the scalar function argument list.
OUTPUT
pName StringBuffer Scalar function name
piNoOfActualParams xo_int The number of arguments passed to the scalar function.
piResXoType xo_int Scalar function result value type.
piLength xo_int Scalar function result value length.
piPrecision xo_int Scalar function result value precision.
piScale xo_int Scalar function result value scale.
RETURN
int DAM_SUCCESS - on success
DAM_FAILURE - on failure

See also:

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