private object MultiplyOrDivide(object a, object b, bool divide)
{
decimal units;
if ((a == null) || (b == null))
{
return(null);
}
if (a is ValueType)
{
a = b;
b = a;
}
if (divide && NumberType.IsZero(b))
{
throw Error.GetError(0xd68);
}
NumberType type = NumberType.GetNumberType(3, 40L, 9);
decimal num = Convert.ToDecimal(type.ConvertToDefaultType(null, b));
if (this._isYearMonth)
{
units = ((IntervalMonthData)a).Units;
}
else
{
IntervalSecondData data = (IntervalSecondData)a;
units = data.Units + (data.Nanos / DTIType.NanoScaleFactors[0]);
}
decimal result = divide ? ((decimal)type.Divide(units, num, SqlType.SqlDecimal, SqlType.SqlDecimal)) : ((decimal)type.Multiply(units, num, SqlType.SqlDecimal, SqlType.SqlDecimal));
if (!NumberType.IsInLongLimits(result))
{
throw Error.GetError(0xd6b);
}
if (this._isYearMonth)
{
return(new IntervalMonthData((long)result, this));
}
int num4 = (int)NumberType.ScaledDecimal(result, 9);
return(new IntervalSecondData((long)result, (long)num4, this, true));
}
public static SqlType GetDataType(int type, int collation, long precision, int scale)
{
if (type <= 0x19)
{
if (type > 12)
{
if (type == 0x10)
{
return(SqlBoolean);
}
if (type == 0x19)
{
return(SqlBigint);
}
}
else
{
switch (type)
{
case -11:
return(SqlUniqueIdentifier);
case -6:
return(Tinyint);
case 0:
return(SqlAllTypes);
case 1:
case 12:
goto Label_0191;
case 2:
case 3:
if (precision == 0)
{
precision = 0x7fffffffL;
}
return(NumberType.GetNumberType(type, precision, scale));
case 4:
return(SqlInteger);
case 5:
return(SqlSmallint);
case 6:
if (precision > 0x35L)
{
throw Error.GetError(0x15d8, precision);
}
goto Label_0175;
case 7:
case 8:
goto Label_0175;
}
}
goto Label_0199;
}
if (type <= 40)
{
if (type == 30)
{
goto Label_00B5;
}
if (type == 40)
{
goto Label_0191;
}
goto Label_0199;
}
if ((type - 60) > 1)
{
switch (type)
{
case 0x5b:
case 0x5c:
case 0x5d:
case 0x5e:
case 0x5f:
return(DateTimeType.GetDateTimeType(type, scale));
case 100:
goto Label_0191;
case 0x65:
case 0x66:
case 0x67:
case 0x68:
case 0x69:
case 0x6a:
case 0x6b:
case 0x6c:
case 0x6d:
case 110:
case 0x6f:
case 0x70:
case 0x71:
return(IntervalType.GetIntervalType(type, precision, scale));
case 0x457:
return(Other);
}
goto Label_0199;
}
Label_00B5:
return(BinaryType.GetBinaryType(type, precision));
Label_0175:
return(SqlDouble);
Label_0191:
return(CharacterType.GetCharacterType(type, precision));
Label_0199:
throw Error.RuntimeError(0xc9, "Type");
}