用代码给TABLE 添加字段，设置属性并编译

    AOTTableFieldList       AOTTableFieldList ,TableFieldNode;
    TableName               tableName    = "SML_InventTableExt";
    FieldName               newFieldName = "SML_StorageLifeType";
    Types                   newFieldType = Types::Integer;
    int                     newFieldLength = 30;
    str                     labelId = literalstr("@SML7726");

    str                     ExtendedDataType ="";
    ExtendedTypeId          ExtendedTypeId   = ExtendedTypeName2Id(ExtendedDataType);

    str                     EnumType    = "SML_DaysUnitType";

    TreeNode        tableNode ,fieldNode ;
    DictType        DictType;

    #AOT
    #Properties
    #ACT_DynamicReport
    ;
    tableNode = TreeNode::findNode(#TablesPath+'\'+tableName) ;
    AOTTableFieldList = TreeNode::findNode(#TablesPath+'\'+tableName+'\'+#ACT_AOTFieldsNode);

    fieldNode = AOTTableFieldList.AOTfindChild( newFieldname);

    if( fieldNode != null)
        throw error(newFieldName + " allready exists in table " + tableName);

    if( ExtendedDataType  )
    {
        if( ! ExtendedTypeId)
            throw error( "ExtendedType type num error");

        DictType = new DictType(ExtendedTypeId);
        newFieldType = dictType.baseType();
    }
    else if (EnumType)
    {
        newFieldType = types::Enum;
    }

    switch(  newFieldType)
    {
                case Types::Date:

                    AOTTableFieldList.addDate( newFieldName);

                    break;

                case Types::Enum:
                    AOTTableFieldList.addEnum(newFieldName);

                    break;

                case Types::Guid:
                    AOTTableFieldList.addGuid(newFieldName);
                    break;

                case Types::Int64:
                    AOTTableFieldList.addInt64(newFieldName);
                    break;

                case Types::Integer:
                    AOTTableFieldList.addInteger(newFieldName);
                    break;

                case Types::Real:
                    AOTTableFieldList.addReal(newFieldName);
                    break;

                case Types::String:
                case Types::RString:
                case Types::VarString:
                    AOTTableFieldList.addString(newFieldName);
                    break;

                case Types::DateTime:
                    AOTTableFieldList.addTime(newFieldName);

                    break;
                case Types::Container:   // can add
                    continue;



    }

    TableFieldNode = AOTTableFieldList.AOTfindChild( newFieldName);


    if( newFieldType ==  types::String || newFieldType == Types::RString || newFieldType == Types::VarString )
        TableFieldNode.AOTsetProperty("StringSize", newFieldLength);

    if( labelId)
        TableFieldNode.AOTsetProperty("Label", labelId);
    if( ExtendedDataType)
        TableFieldNode.AOTsetProperty("ExtendedDataType", ExtendedDataType);
    if( EnumType)
        TableFieldNode.AOTsetProperty("EnumType", EnumType);

    tableNode.AOTcompile(1);
    tableNode.AOTsave();

    info("successed add field " + newfieldname);

　　在AX4.0中用JOB测试通过。

      在AX部署代码时，若是涉及比较大的表的字段的新增，在表上用按钮直接操作，往往耗费很多的时间在等待AOT的编译上面，若是同一表要加多个字段的时候，等的简直让人抓狂，用这个job, 一次加一个字段，速度相当快。

原因在于在表上面用按钮直接加字段，系统会编译所有用到此TABLE的所有的相关VIEW和QUERY。
而用代码加字段，我们只编译了该TABLE所在的节点，所以比较快。