internal static string DataTypeDetail(SchemaDataSet.ColumnsRow columnsRow)
{
StringBuilder dataTypeStringBuilder = new StringBuilder();
if (!c_fixedSizeDataTypes.Contains(columnsRow.DATA_TYPE.ToLowerInvariant()))
{
if (!columnsRow.IsCHARACTER_MAXIMUM_LENGTHNull())
{
dataTypeStringBuilder.AppendFormat("({0})", columnsRow.CHARACTER_MAXIMUM_LENGTH == -1 ? "MAX" : columnsRow.CHARACTER_MAXIMUM_LENGTH.ToString());
}
else
{
if (!columnsRow.IsNUMERIC_PRECISIONNull())
{
if (!columnsRow.IsNUMERIC_SCALENull())
{
dataTypeStringBuilder.AppendFormat("({0}, {1})", columnsRow.NUMERIC_PRECISION, columnsRow.NUMERIC_SCALE);
}
else
{
dataTypeStringBuilder.AppendFormat("({0})", columnsRow.NUMERIC_PRECISION);
}
}
else
{
throw new InvalidOperationException("Don't know how to create the detail for this data type");
}
}
}
return dataTypeStringBuilder.ToString();
}
private static bool ColumnsMatch(SchemaDataSet.ColumnsRow columnRow1, SchemaDataSet.ColumnsRow columnRow2)
{
if (columnRow1.IsDATA_TYPENull() != columnRow2.IsDATA_TYPENull()
|| (!columnRow1.IsDATA_TYPENull() && !columnRow2.IsDATA_TYPENull()
&& !columnRow1.DATA_TYPE.Equals(columnRow2.DATA_TYPE, StringComparison.OrdinalIgnoreCase))
)
{
return false;
}
if (columnRow1.IsCHARACTER_MAXIMUM_LENGTHNull() != columnRow2.IsCHARACTER_MAXIMUM_LENGTHNull()
|| (!columnRow1.IsCHARACTER_MAXIMUM_LENGTHNull() && !columnRow2.IsCHARACTER_MAXIMUM_LENGTHNull()
&& columnRow1.CHARACTER_MAXIMUM_LENGTH != columnRow2.CHARACTER_MAXIMUM_LENGTH)
)
{
return false;
}
if (columnRow1.IsNUMERIC_PRECISIONNull() != columnRow2.IsNUMERIC_PRECISIONNull()
|| (!columnRow1.IsNUMERIC_PRECISIONNull() && !columnRow2.IsNUMERIC_PRECISIONNull()
&& columnRow1.NUMERIC_PRECISION != columnRow2.NUMERIC_PRECISION)
)
{
return false;
}
if (columnRow1.IsNUMERIC_PRECISION_RADIXNull() != columnRow2.IsNUMERIC_PRECISION_RADIXNull()
|| (!columnRow1.IsNUMERIC_PRECISION_RADIXNull() && !columnRow2.IsNUMERIC_PRECISION_RADIXNull()
&& columnRow1.NUMERIC_PRECISION_RADIX != columnRow2.NUMERIC_PRECISION_RADIX)
)
{
return false;
}
if (columnRow1.IsNUMERIC_SCALENull() != columnRow2.IsNUMERIC_SCALENull()
|| (!columnRow1.IsNUMERIC_SCALENull() && !columnRow2.IsNUMERIC_SCALENull()
&& columnRow1.NUMERIC_SCALE != columnRow2.NUMERIC_SCALE)
)
{
return false;
}
if (columnRow1.IsDATETIME_PRECISIONNull() != columnRow2.IsDATETIME_PRECISIONNull()
|| (!columnRow1.IsDATETIME_PRECISIONNull() && !columnRow2.IsDATETIME_PRECISIONNull()
&& columnRow1.DATETIME_PRECISION != columnRow2.DATETIME_PRECISION)
)
{
return false;
}
if (columnRow1.IsCHARACTER_OCTET_LENGTHNull() != columnRow2.IsCHARACTER_OCTET_LENGTHNull()
|| (!columnRow1.IsCHARACTER_OCTET_LENGTHNull() && !columnRow2.IsCHARACTER_OCTET_LENGTHNull()
&& columnRow1.CHARACTER_OCTET_LENGTH != columnRow2.CHARACTER_OCTET_LENGTH)
)
{
return false;
}
return true;
}