Problem using field symbols in Query...
Hi,
I am fetching the name of the table and field which I will be using in the query using field symbols. But it gives syntax error...
select single OBJECTTABLE OBJECTFIELD into help_numtab from Zobjectname
where OBJECTNAME = P_OBJECT.
field-symbols : <number> type any.
field-symbols : <module> type any.
ASSIGN help_numtab-OBjectfield to <number>.
ASSIGN help_numtab-OBjecttable to <module>.
/* Here <number> = MATNR and <module> = MARA.
select <NUMBER> into table help_item
from <MODULE>
where ERNAM = SY-UNAME.
This gives a syntax error which says <module> is not defined in ABAP DDIC.
instead of field symbols, you ccan try this..
select (help_numtab-OBjectfield) into table help_item
from (help_numtab-OBjecttable)
where ERNAM = SY-UNAME.
~Suresh
Similar Messages
-
How to use Field-symbol with dynamic select query
Can anybody tell me, how to use field-symbols in the dynamic select query.
FIELD-SYMBOLS <fs> { typing | STRUCTURE struc DEFAULT dobj }.
1. ... typing
2. ... STRUCTURE struc DEFAULT dobj
The FIELD-SYMBOLS statement declares a field symbol <fs>. The name conventions apply to the name fs. The angle brackets of the field symbols indicate the difference to data objects and are obligatory. You can declare field symbols in any procedure and in the global declaration section of an ABAP program, but not in the declaration section of a class or an interface. You can use a field symbol in any operand position in which it is visible and which match the typing defined using typing.
After its declaration, a field symbol is initial - that is, it does not reference a memory area. You have to assign a memory area to it (normally using the ASSIGN statement) before you can use it as an operand. Otherwise an exception will be triggered.
eg.
FIELD-SYMBOLS <fs> TYPE ANY.
DATA: BEGIN OF line,
string1(10) VALUE '0123456789',
string2(10) VALUE 'abcdefghij',
END OF line.
WRITE / line-string1+5.
ASSIGN line-string1+5(*) TO <fs>.
WRITE / <fs>.
output:
56789
56789
reward if helpful
anju -
Problem in using Field Symbols in HIDE statement
Hi All,
I am working in an Upgrade project ( from 4.6B to ECC 5.0 ). In a program I found few warnings on HIDE statement because they have used Field Symbols in HIDE statement.
The warning is " HIDE on a field symbol is dangerous, but the formal parameter "" is not ".
and the piece of code is
SET EXTENDED CHECK OFF.
HIDE: flg_pick_up, <s1>, <s2>, <s3>, <s4>, <s5>, z_feld_ind.
CLEAR flg_pick_up.
SET EXTENDED CHECK ON.
all the field symbols are of type ANY. SO can any one help in removing those warnings.
Please reply me as soon as possible.
With Regards,
Amarnath SinganamalaHi amarnath,
1. Why do u want to remove
the warning ?
2. This warning (and not an error)
is a GENUINE warning,
which the system wants the user to make aware of.
3. By doing some xyz,
even if u may be able to hide the warning,
the warning may be hidden (for display purpose only),
but,
the warning will still be there inside the system.
4. I think u should ignore the warning,
(if there are no other repurcussions).
regards,
amit m. -
Re: Problem in ALV reports using Field symbols
Hi Friends,
Can you tell me how to convert a normal report using field symbols into ALV report
can ypu please suggest me any solutions.I am sending the code along with this mail.
Regards,
Dinesh
<b>Coding:</b>
*& Report YSDBTEMP *
REPORT YSDBTEMP .
tables: ekko , ekpo .
TYPE-POOLS: SLIS.
*Internal Table Declaration
data: begin of line ,
ebeln like ekko-ebeln , "Purchasing Document No.
bedat like ekko-bedat , "Purchasing Document Date
matnr like ekpo-matnr , "Material No.
netwr like ekpo-netwr , "Net Order Value in PO Currancy
meins like ekpo-meins , "UOM
change like ekpo-menge ,
end of line .
*Internal table Declaration
DATA: IT_final like table of line with header line.
DATA : FIELDCATALOG TYPE SLIS_T_FIELDCAT_ALV with header line.
DATA : V_REPID TYPE SYREPID.
DATA : IT_LISTHEADER TYPE SLIS_T_LISTHEADER.
data : i_layout type slis_layout_alv .
Header for Main Grid Display
data:i_header1 type slis_t_listheader with header line.
Header for Interactive Report Display
data:i_header2 type slis_t_listheader with header line.
*Field Symbol declaration.
FIELD-SYMBOLS: <FS> type any table.
**select option Declaration
selection-screen begin of block block.
select-options: s_ebeln for ekko-ebeln .
selection-screen end of block block .
start-of-selection.
perform get_data.
perform field_cat.
perform layout using i_layout .
perform grid_display .
*& Form get_data
text
--> p1 text
<-- p2 text
FORM get_data .
SELECT EKKO~EBELN
EKKO~BEDAT
EKPO~EBELP
EKPO~MATNR
EKPO~NETWR
EKPO~MEINS
EKPO~MENGE
EKPO~BPRME
INTO CORRESPONDING FIELDS OF table IT_FINAL
FROM EKKO INNER JOIN EKPO ON EKKOEBELN = EKPOEBELN
WHERE EKKO~EBELN IN S_EBELN.
ENDFORM. " get_data
*& Form field_cat
text
--> p1 text
<-- p2 text
FORM field_cat .
fieldcatalog-fieldname = 'EBELN'.
fieldcatalog-seltext_m = 'Purchase Order No'.
fieldcatalog-col_pos = 1.
append fieldcatalog .
clear fieldcatalog.
fieldcatalog-fieldname = 'BEDAT'.
fieldcatalog-seltext_m = 'Purchasing Document Date'.
fieldcatalog-col_pos = 2.
append fieldcatalog .
clear fieldcatalog.
fieldcatalog-fieldname = 'MATNR'.
fieldcatalog-seltext_m = 'Material No'.
fieldcatalog-col_pos = 3.
append fieldcatalog .
clear fieldcatalog.
fieldcatalog-fieldname = 'MATNR'.
fieldcatalog-seltext_m = 'Net order'.
fieldcatalog-col_pos = 4.
append fieldcatalog .
clear fieldcatalog.
ENDFORM. " field_cat
*& Form layout
text
-->P_I_LAYOUT text
FORM layout USING P_I_LAYOUT.
i_layout-lights_tabname = 'IT_FINAL'.
i_layout-box_tabname = 'IT_FINAL'.
ENDFORM. " layout
*& Form grid_display
text
--> p1 text
<-- p2 text
FORM grid_display .
CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
EXPORTING
I_CALLBACK_PROGRAM = SY-REPID
I_CALLBACK_PF_STATUS_SET = 'SET_PO_PF_STATUS'
I_CALLBACK_USER_COMMAND = 'USER_COMMAND'
IS_LAYOUT = I_LAYOUT
IT_FIELDCAT = FIELDCATALOG[]
*IT_EVENTS = I_EVENT[]
TABLES
t_outtab = <fs>.
endform.Hi,
This is one sample program,
Check this.
I hope it is helpful to you.
TABLES : zeastable_02,zeastable_04.
TYPE-POOLS : slis.
TYPES : BEGIN OF fieldst,
name LIKE zeastable_02-name,
znum LIKE zeastable_02-znum,
empno LIKE zeastable_04-empno,
zempsalary LIKE zeastable_04-zempsalary,
END OF fieldst.
DATA itab TYPE TABLE OF fieldst WITH HEADER LINE.
DATA: w_report_id LIKE sy-repid. "Program name
DATA: w_title TYPE lvc_title VALUE 'Assignment 1 in ALV'.
DATA: w_layout TYPE slis_layout_alv. "Layout setup
DATA: w_fieldcat TYPE slis_t_fieldcat_alv. "Field Catlog
START-OF-SELECTION.
SELECT-OPTIONS employee FOR zeastable_04-empno.
SELECT zeastable_02name zeastable_02znum
zeastable_04empno zeastable_04zempsalary
INTO CORRESPONDING FIELDS OF TABLE itab FROM
zeastable_02 INNER JOIN zeastable_04 ON
zeastable_02name = zeastable_04name
WHERE zeastable_04~empno IN employee.
w_report_id = sy-repid.
PERFORM i_layout CHANGING w_layout.
PERFORM i_fieldcat CHANGING w_fieldcat.
CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
EXPORTING
i_callback_program = 'ZEASALV_04'
i_grid_title = w_title
is_layout = w_layout
it_fieldcat = w_fieldcat
i_save = 'A'
TABLES
t_outtab = itab
EXCEPTIONS
program_error = 1
OTHERS = 2
IF sy-subrc <> 0.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.
PERFORM i_layout CHANGING w_layout.
PERFORM i_fieldcat CHANGING w_fieldcat.
*& Form i_layout
text
<--P_W_LAYOUT text
form i_layout changing p_w_layout.
clear w_layout.
w_layout-colwidth_optimize = 'X'.
w_layout-edit = ' '.
endform. " i_layout
*& Form i_fieldcat
text
<--P_W_FEILDCAT text
form i_fieldcat changing p_w_feildcat.
data: l_line_fieldcat type slis_fieldcat_alv.
clear l_line_fieldcat.
l_line_fieldcat-fieldname = 'NAME'.
l_line_fieldcat-ref_tabname = 'itab'.
l_line_fieldcat-seltext_m = 'NAME'.
l_line_fieldcat-key = 'X'.
append l_line_fieldcat to w_fieldcat.
clear l_line_fieldcat.
l_line_fieldcat-fieldname = 'ZNUM'.
l_line_fieldcat-ref_tabname = 'itab'.
l_line_fieldcat-seltext_m = 'NUMBER'.
l_line_fieldcat-key = 'X'.
append l_line_fieldcat to w_fieldcat.
clear l_line_fieldcat.
l_line_fieldcat-fieldname = 'EMPNO'.
l_line_fieldcat-ref_tabname = 'itab'.
l_line_fieldcat-seltext_m = 'EMPLNUM'.
*l_line_fieldcat-key = 'X'.
append l_line_fieldcat to w_fieldcat.
clear l_line_fieldcat.
l_line_fieldcat-fieldname = 'ZEMPSALARY'.
l_line_fieldcat-ref_tabname = 'itab'.
l_line_fieldcat-seltext_m = 'SALARY'.
*l_line_fieldcat-key = 'X'.
append l_line_fieldcat to w_fieldcat.
endform. " i_fieldcat
Reward for useful answers. -
How to populate one internal table from another using field symbols
Hi Gurus,
I have a problem. I have to populate one internal table (sructure t_otput) from another internal table (sructure t_from) using field symbol.
Structure for from table.
types: begin of t_from,
year(4) type c,
ww(2) type c,
site type marc-werks,
demand type i,
end of t_from.
Structure for output table.
types: begin of t_display,
title(30),
WW1(10),
WW2(10),
WW3(10),
end of t_display.
The from table looks like this:
Year | WW | Site | Demand
2005 | 1 | OR1 | 12.00
2005 | 2 | OR1 | 13.00
2005 | 3 | OR1 | 14.00
The display table which has to be populated should look like this:
Title | WW1 | WW2 | WW3
OR1 | | |
Demand | 12.00 | 13.00 | 14.00
How to populate display table using field symbol?
Please give code snippets
Thanks,
GopalGopal,
Here is the code, however I am not vary clear about the ORG1 and Demand display that you have shown in the display. I am sure with this code it should not be a big deal to tweak in whatever manner you want.
TABLES : marc.
TYPES: BEGIN OF type_display,
title(30),
ww1(10),
ww2(10),
ww3(10),
END OF type_display.
TYPES: BEGIN OF type_from,
year(4) TYPE c,
ww(2) TYPE c,
site TYPE marc-werks,
demand TYPE i,
END OF type_from.
data : t_from type table of type_from,
t_display type table of type_display.
field-symbols : <fs_from> type type_from,
<fs_display> type type_display.
data : wa_from type type_From,
wa_display type type_display.
wa_from-year = '2005'.
wa_from-ww = '1'.
wa_from-site = 'OR1'.
wa_from-demand = '12.00'.
insert wa_from into table t_from.
wa_from-year = '2005'.
wa_from-ww = '2'.
wa_from-site = 'OR1'.
wa_from-demand = '13.00'.
insert wa_from into table t_from.
wa_from-year = '2005'.
wa_from-ww = '3'.
wa_from-site = 'OR1'.
wa_from-demand = '14.00'.
insert wa_from into table t_from.
data : variable(3) type c.
field-symbols : <fs_any> type any.
break-point.
Loop at t_from assigning <fs_from>.
variable = 'WW'.
wa_display-title = <fs_from>-site.
concatenate variable <fs_from>-ww into variable.
assign component variable of structure wa_display to <fs_any>.
<fs_any> = <fs_from>-demand.
endloop.
append wa_display to t_display.
clear wa_display.
loop at t_display assigning <Fs_display>.
write :/ <fs_display>.
endloop.
Note : Please award points if this helps you.
Regards,
Ravi -
Hi,
I am using dynamic table concepts.I am using field symbols.I need to maintain two tables of similar structure.
when i append data it will enter into both tables.when i unassign first table and reassign it ,i am getting back that data again into first table ..how to slve this problem.i need to start first table as fresh table and second table contain copy of the first table.Hi,
maybe you should clarify your problem a bit more by pasting some code and try to explain it a bit more in detail.
Roy -
Perform setting OOP ALV for multiple reports using Field Symbols
Hi, Abapers ... i try to write a programme which using ONE oop ALV but 2 different structure internal table. the last result should be 2 radio button. first button is r_wbs and 2ns r_kpi. r_wbs will display 4 column answer and r_kpi will display 10 columns answer with different column name. i successfully implemented using FIELDS SYMBOLS but the problems i failed to perform customized setting forALV (report's tittle, column name, different layout etc) for 2 different reports. this is the programme. Please Give Opinion, simple example will be more helpful. Thanks You Very Much
*&this report experimental how to print into ONE alv
*&with 2 diffrent structure internal table
REPORT zfiroopalv.
SELECTION-SCREEN BEGIN OF BLOCK mode WITH FRAME TITLE text-002.
PARAMETERS r_wbs RADIOBUTTON GROUP mode DEFAULT 'X'.
PARAMETERS r_kpi RADIOBUTTON GROUP mode.
SELECTION-SCREEN END OF BLOCK mode.
CLASS lcl_main DEFINITION.
PUBLIC SECTION.
CLASS-DATA: md_wbs TYPE c LENGTH 1.
METHODS: process,
write.
DATA: mdo_data TYPE REF TO data.
TYPES: BEGIN OF st_wbs,
rsnum TYPE zmeime002a-rsnum,
rspos TYPE zmeime002a-rspos,
a TYPE zmmgitab01-menge,
b TYPE zmeime002a-bdmng,
c TYPE zmeime002a-bdmng,
d TYPE zmeime002a-bdmng,
e TYPE zmeime002a-bdmng,
f TYPE zmmgitab01-menge,
g TYPE zmmgitab01-menge,
END OF st_wbs.
TYPES: BEGIN OF st_kpi,
regio TYPE zmeime002a-regio,
gsber TYPE zmeime002a-gsber,
gtext TYPE zmeime002a-gtext,
x TYPE zmmgitab01-menge,
y TYPE zmmgitab01-menge,
z TYPE zmmgitab01-menge,
END OF st_kpi.
CLASS-DATA: it_wbs TYPE TABLE OF st_wbs,
wa_wbs LIKE LINE OF it_wbs.
CLASS-DATA: it_kpi TYPE TABLE OF st_kpi,
wa_kpi LIKE LINE OF it_kpi.
PRIVATE SECTION.
DATA: set_display_setting TYPE REF TO cl_salv_table.
DATA: display_settings TYPE REF TO cl_salv_display_settings.
DATA: salv_table TYPE REF TO cl_salv_table.
DATA: error TYPE REF TO cx_root.
DATA: errtext TYPE string.
ENDCLASS.
CLASS lcl_kpi DEFINITION INHERITING FROM lcl_main.
PUBLIC SECTION.
METHODS: process_kpi.
PRIVATE SECTION.
ENDCLASS.
* C.L.A.S.S lcl_main D.E.F.I.N.I.T.I.O.N
CLASS lcl_wbs DEFINITION INHERITING FROM lcl_main.
PUBLIC SECTION.
METHODS: process_wbs.
PRIVATE SECTION.
ENDCLASS.
* m.a.i.n. .p.r.o.g.r.a.m.
START-OF-SELECTION.
DATA: o_main TYPE REF TO lcl_main.
DATA: p_wbs TYPE c.
CREATE OBJECT o_main.
CASE 'X'.
WHEN r_wbs.
o_main->md_wbs = 'X'.
WHEN r_kpi.
o_main->md_wbs = ' '.
ENDCASE.
o_main->process( ).
o_main->write( ).
CLASS lcl_main IMPLEMENTATION.
*ENDMETHOD.
METHOD process. " NOTE: public method
DATA: o_main TYPE REF TO lcl_main,
o_wbs TYPE REF TO lcl_wbs,
o_kpi TYPE REF TO lcl_kpi.
CREATE OBJECT: o_wbs,o_kpi.
IF ( me->md_wbs = 'X' ).
CALL METHOD o_wbs->process_wbs( ). " NOTE: private method
GET REFERENCE OF me->it_wbs INTO me->mdo_data.
ELSE.
CALL METHOD o_kpi->process_kpi( ). " NOTE: private method
GET REFERENCE OF me->it_kpi INTO me->mdo_data.
ENDIF.
ENDMETHOD.
METHOD write.
FIELD-SYMBOLS:
<lt_outtab> TYPE table.
ASSIGN me->mdo_data->* TO <lt_outtab>.
cl_salv_table=>factory(
EXPORTING
list_display = if_salv_c_bool_sap=>false
IMPORTING
r_salv_table = salv_table
CHANGING
t_table = <lt_outtab>
salv_table->display( ).
ENDMETHOD.
ENDCLASS.
CLASS lcl_kpi IMPLEMENTATION.
METHOD process_kpi.
*********** run some select statement into it_kpi*******
ENDMETHOD.
ENDCLASS.
CLASS lcl_wbs IMPLEMENTATION.
METHOD process_wbs.
*********** run some select statement into it_wbs*******
ENDMETHOD.
ENDCLASS.Hi,
I had similar requirement wherein I was supposed to display different data using 2 different internal tables on a subscreen area.
The screen consists of two parts: 1) selection-screen with few input fields and two buttons 2) Subscreen area where the report need to be displayed. This report is displayed based on the button that the user is selecting. For this I have done the following things:
1. Capture the sy-ucomm when user is clicking on any of the two buttons in PAI. Then perform data fetch operation.
MODULE USER_COMMAND_9003 INPUT.
CASE OK_CODE.
WHEN 'DETAIL'.
GV_RPT = OK_CODE.
PERFORM F_GET_DETAIL_DATA.
WHEN 'REPORT'.
GV_RPT = OK_CODE.
PERFORM F_GET_REPT_DATA.
ENDCASE.
ENDMODULE. " USER_COMMAND_9003 INPUT
2. Declare two different ALV's with the fieldcat similar to 2 internal tables respectively. Use the above sy-ucomm PBO to call appropriate ALV.
MODULE DISPLAY_ALV OUTPUT.
IF GV_RPT EQ 'DETAIL'.
PERFORM F_FIELDCAT_DETAIL.
PERFORM F_LAYOUT_DETAIL.
PERFORM F_EXCLUDE_TOOLBAR_DETAIL.
PERFORM F_DISPLAY_ALV_DETAIL.
ELSEIF GV_RPT EQ 'REPORT'.
PERFORM F_FIELDCAT_REPT.
PERFORM F_LAYOUT_REPT.
PERFORM F_EXCLUDE_TOOLBAR_REPT.
PERFORM F_DISPLAY_ALV_REPT.
ENDIF.
ENDMODULE. " DISPLAY_ALV OUTPUT
3. Before displaying ALV you need to free the container and ALV.
FORM F_DISPLAY_ALV_DETAIL .
IF GC_CONTAINER_ES IS NOT INITIAL.
CALL METHOD GC_CONTAINER_ES->FREE
EXCEPTIONS
CNTL_ERROR = 1
CNTL_SYSTEM_ERROR = 2
OTHERS = 3.
IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
ENDIF.
IF GC_ALV_GRID_ES IS NOT INITIAL.
CALL METHOD GC_ALV_GRID_ES->FREE
EXCEPTIONS
CNTL_ERROR = 1
CNTL_SYSTEM_ERROR = 2
OTHERS = 3.
IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
ENDIF.
IF GC_CONTAINER_TB IS NOT INITIAL.
CALL METHOD GC_CONTAINER_TB->FREE
EXCEPTIONS
CNTL_ERROR = 1
CNTL_SYSTEM_ERROR = 2
OTHERS = 3.
IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
ENDIF.
IF GC_ALV_GRID_TB IS NOT INITIAL.
CALL METHOD GC_ALV_GRID_TB->FREE
EXCEPTIONS
CNTL_ERROR = 1
CNTL_SYSTEM_ERROR = 2
OTHERS = 3.
IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
ENDIF.
CREATE OBJECT GC_CONTAINER_ES
EXPORTING
CONTAINER_NAME = 'CC_9003'
EXCEPTIONS
CNTL_ERROR = 1
CNTL_SYSTEM_ERROR = 2
CREATE_ERROR = 3
LIFETIME_ERROR = 4
LIFETIME_DYNPRO_DYNPRO_LINK = 5
OTHERS = 6.
CREATE OBJECT GC_ALV_GRID_ES
EXPORTING
I_PARENT = GC_CONTAINER_ES
EXCEPTIONS
ERROR_CNTL_CREATE = 1
ERROR_CNTL_INIT = 2
ERROR_CNTL_LINK = 3
ERROR_DP_CREATE = 4
OTHERS = 5.
CALL METHOD GC_ALV_GRID_ES->SET_TABLE_FOR_FIRST_DISPLAY
EXPORTING
IS_LAYOUT = GS_LAYOUT_ES
IT_TOOLBAR_EXCLUDING = GT_TOOLBAR_ES
CHANGING
IT_OUTTAB = GT_ES_REPT
IT_FIELDCATALOG = GT_FIELDCAT_ES
EXCEPTIONS
INVALID_PARAMETER_COMBINATION = 1
PROGRAM_ERROR = 2
TOO_MANY_LINES = 3
OTHERS = 4.
ENDFORM. " F_DISPLAY_ALV_DETAIL
Similarly define the FORM F_DISPLAY_ALV_REPT.
Hope this will be useful for you. If you have any more queries let me know. -
can anyone tell me how to use field symbols. What effect it has on performance of a program?
what r its avantages?
iam working on a report where iam facing a lot of problems in performance issue. can anyone tell how field symbols are useful in this regard?
thanx to allCheck the below links
http://help.sap.com/saphelp_nw04/helpdata/en/fc/eb3860358411d1829f0000e829fbfe/content.htm
FIELD-SYMBOLS
Basic form
FIELD-SYMBOLS <fs>.
Additions
1. ... STRUCTURE s DEFAULT wa
2. ... TYPE t
3. ... TYPE LINE OF t
4. ... LIKE s
5. ... LIKE LINE OF s
Effect
This statement declares a symbolic field called <fs>. At runtime, you can assign a concrete field to the field symbol using ASSIGN . All operations performed with the field symbol then directly affect the field assigned to it.
You can only use one of the additions.
Example
Output aircraft type from the table SFLIGHT using a field symbol:
FIELD-SYMBOLS <PT>.
TABLES SFLIGHT.
ASSIGN SFLIGHT-PLANETYPE TO <PT>.
WRITE <PT>.
Addition 1
... STRUCTURE s DEFAULT wa
Effect
Assigns any (internal) field string or structure to the field symbol from the ABAP/4 Dictionary ( s ). All fields of the structure can be addressed by name: <fs>-fieldname . The structured field symbol points initially to the work area wa specified after DEFAULT .
The work area wa must be at least as long as the structure s . If s contains fields of the type I or F, wa should have the structure s or at least begin in that way, since otherwise alignment problems may occur.
Example
Address components of the flight bookings table SBOOK using a field symbol:
DATA SBOOK_WA LIKE SBOOK.
FIELD-SYMBOLS <SB> STRUCTURE SBOOK
DEFAULT SBOOK_WA.
WRITE: <SB>-BOOKID, <SB>-FLDATE.
Addition 2
... TYPE t
Addition 3
... TYPE LINE OF t
Addition 4
... LIKE s
Addition 5
... LIKE LINE OF s
Effect
You can use additions 2 to 5 to type field symbols in the same way as FORM parameters (see also Type assignment of subroutine parameters). ASSIGN performs the same type checks as with USING parameters of FORM s. -
How to use field symbol in select
Hi,
CONCATENATE 'WTG0' LV_MON INTO LV_FNAME.
ASSIGN (LV_FNAME) TO <FS>.
SELECT SINGLE <FS> FROM COSP INTO LV_SAPRST
WHERE OBJNR = LV_OBJ AND GJAHR = LV_YEAR AND WRTTP = '4' AND KSTAR = GT_INOUT-SAKNR
Error message : Unknown column name "<FS>" . field list. . field list. field list.
actually , if i use if command, i can do, but i want to use simple code by fieldsymbol.
is it possible in select command?
Thanks in advance
BenjaminHi
Hope it will help you.
reward if help.
Field Symbols
Field symbols are placeholders or symbolic names for other fields. They do not physically reserve space for a field, but point to its contents. A field symbol cam point to any data object. The data object to which a field symbol points is assigned to it after it has been declared in the program.
Whenever you address a field symbol in a program, you are addressing the field that is assigned to the field symbol. After successful assignment, there is no difference in ABAP whether you reference the field symbol or the field itself. You must assign a field to each field symbol before you can address the latter in programs.
Field symbols are similar to dereferenced pointers in C (that is, pointers to which the content operator * is applied). However, the only real equivalent of pointers in ABAP, that is, variables that contain a memory address (reference) and that can be used without the contents operator, are reference variables in ABAP Objects.
All operations programmed with field symbols are applied to the field assigned to it. For example, a MOVE statement between two field symbols moves the contents of the field assigned to the first field symbol to the field assigned to the second field symbol. The field symbols themselves point to the same fields after the MOVE statement as they did before.
You can create field symbols either without or with type specifications. If you do not specify a type, the field symbol inherits all of the technical attributes of the field assigned to it. If you do specify a type, the system checks the compatibility of the field symbol and the field you are assigning to it during the ASSIGN statement.
Field symbols provide greater flexibility when you address data objects:
If you want to process sections of fields, you can specify the offset and length of the field dynamically.
You can assign one field symbol to another, which allows you to address parts of fields.
Assignments to field symbols may extend beyond field boundaries. This allows you to address regular sequences of fields in memory efficiently.
You can also force a field symbol to take different technical attributes from those of the field assigned to it.
The flexibility of field symbols provides elegant solutions to certain problems. On the other hand, it does mean that errors can easily occur. Since fields are not assigned to field symbols until runtime, the effectiveness of syntax and security checks is very limited for operations involving field symbols. This can lead to runtime errors or incorrect data assignments.
While runtime errors indicate an obvious problem, incorrect data assignments are dangerous because they can be very difficult to detect. For this reason, you should only use field symbols if you cannot achieve the same result using other ABAP statements.
For example, you may want to process part of a string where the offset and length depend on the contents of the field. You could use field symbols in this case. However, since the MOVE statement also supports variable offset and length specifications, you should use it instead. The MOVE statement (with your own auxiliary variables if required) is much safer than using field symbols, since it cannot address memory beyond the boundary of a field. However, field symbols may improve performance in some cases.
check the below links u will get the answers for your questions
http://help.sap.com/saphelp_nw04/helpdata/en/fc/eb3860358411d1829f0000e829fbfe/content.htm
http://www.sts.tu-harburg.de/teaching/sap_r3/ABAP4/field_sy.htm
http://searchsap.techtarget.com/tip/1,289483,sid21_gci920484,00.html
Syntax Diagram
FIELD-SYMBOLS
Basic form
FIELD-SYMBOLS <fs>.
Extras:
1. ... TYPE type
2. ... TYPE REF TO cif
3. ... TYPE REF TO DATA
4. ... TYPE LINE OF type
5. ... LIKE s
6. ... LIKE LINE OF s
7. ... TYPE tabkind
8. ... STRUCTURE s DEFAULT wa
The syntax check performed in an ABAP Objects context is stricter than in other ABAP areas. See Cannot Use Untyped Field Symbols ad Cannot Use Field Symbols as Components of Classes.
Effect
This statement declares a symbolic field called <fs>. At runtime, you can assign a concrete field to the field symbol using ASSIGN. All operations performed with the field symbol then directly affect the field assigned to it.
You can only use one of the additions.
Example
Output aircraft type from the table SFLIGHT using a field symbol:
FIELD-SYMBOLS <PT> TYPE ANY.
DATA SFLIGHT_WA TYPE SFLIGHT.
ASSIGN SFLIGHT_WA-PLANETYPE TO <PT>.
WRITE <PT>.
Addition 1
... TYPE type
Addition 2
... TYPE REF TO cif
Addition 3
... TYPE REF TO DATA
Addition 4
... TYPE LINE OF type
Addition 5
... LIKE s
Addition 6
... LIKE LINE OF s
Addition 7
... TYPE tabkind
Effect
You can define the type of the field symbol using additions 2 to 7 (just as you can for FORM parameters (compare Defining the Type of Subroutine Parameters). When you use the ASSIGN statement, the system carries out the same type checks as for USING parameters of FORMs.
This addition is not allowed in an ABAP Objects context. See Cannot Use Obsolete Casting for FIELD SYMBOLS.
In some cases, the syntax rules that apply to Unicode programs are different than those for non-Unicode programs. See Defining Types Using STRUCTURE.
Effect
Assigns any (internal) field string or structure to the field symbol from the ABAP Dictionary (s). All fields of the structure can be addressed by name: <fs>-fieldname. The structured field symbol points initially to the work area wa specified after DEFAULT.
The work area wa must be at least as long as the structure s. If s contains fields of the type I or F, wa should have the structure s or at least begin in that way, since otherwise alignment problems may occur.
Example
Address components of the flight bookings table SBOOK using a field symbol:
DATA SBOOK_WA LIKE SBOOK.
FIELD-SYMBOLS <SB> STRUCTURE SBOOK
DEFAULT SBOOK_WA.
WRITE: <SB>-BOOKID, <SB>-FLDATE.
Related
ASSIGN, DATA
Additional help
Declaring Field Symbols -
How to use field symbols in program
how to use field symbols can any one explain with example please..
Regards,
venki...Hi
Field Symbols
Field symbols are placeholders or symbolic names for other fields. They do not physically reserve space for a field, but point to its contents. A field symbol cam point to any data object. The data object to which a field symbol points is assigned to it after it has been declared in the program.
Whenever you address a field symbol in a program, you are addressing the field that is assigned to the field symbol. After successful assignment, there is no difference in ABAP whether you reference the field symbol or the field itself. You must assign a field to each field symbol before you can address the latter in programs.
Field symbols are similar to dereferenced pointers in C (that is, pointers to which the content operator * is applied). However, the only real equivalent of pointers in ABAP, that is, variables that contain a memory address (reference) and that can be used without the contents operator, are reference variables in ABAP Objects.
All operations programmed with field symbols are applied to the field assigned to it. For example, a MOVE statement between two field symbols moves the contents of the field assigned to the first field symbol to the field assigned to the second field symbol. The field symbols themselves point to the same fields after the MOVE statement as they did before.
You can create field symbols either without or with type specifications. If you do not specify a type, the field symbol inherits all of the technical attributes of the field assigned to it. If you do specify a type, the system checks the compatibility of the field symbol and the field you are assigning to it during the ASSIGN statement.
Field symbols provide greater flexibility when you address data objects:
If you want to process sections of fields, you can specify the offset and length of the field dynamically.
You can assign one field symbol to another, which allows you to address parts of fields.
Assignments to field symbols may extend beyond field boundaries. This allows you to address regular sequences of fields in memory efficiently.
You can also force a field symbol to take different technical attributes from those of the field assigned to it.
The flexibility of field symbols provides elegant solutions to certain problems. On the other hand, it does mean that errors can easily occur. Since fields are not assigned to field symbols until runtime, the effectiveness of syntax and security checks is very limited for operations involving field symbols. This can lead to runtime errors or incorrect data assignments.
While runtime errors indicate an obvious problem, incorrect data assignments are dangerous because they can be very difficult to detect. For this reason, you should only use field symbols if you cannot achieve the same result using other ABAP statements.
For example, you may want to process part of a string where the offset and length depend on the contents of the field. You could use field symbols in this case. However, since the MOVE statement also supports variable offset and length specifications, you should use it instead. The MOVE statement (with your own auxiliary variables if required) is much safer than using field symbols, since it cannot address memory beyond the boundary of a field. However, field symbols may improve performance in some cases.
check the below links u will get the answers for your questions
http://help.sap.com/saphelp_nw04/helpdata/en/fc/eb3860358411d1829f0000e829fbfe/content.htm
http://www.sts.tu-harburg.de/teaching/sap_r3/ABAP4/field_sy.htm
http://searchsap.techtarget.com/tip/1,289483,sid21_gci920484,00.html
Syntax Diagram
FIELD-SYMBOLS
Basic form
FIELD-SYMBOLS <fs>.
Extras:
1. ... TYPE type
2. ... TYPE REF TO cif
3. ... TYPE REF TO DATA
4. ... TYPE LINE OF type
5. ... LIKE s
6. ... LIKE LINE OF s
7. ... TYPE tabkind
8. ... STRUCTURE s DEFAULT wa
The syntax check performed in an ABAP Objects context is stricter than in other ABAP areas. See Cannot Use Untyped Field Symbols ad Cannot Use Field Symbols as Components of Classes.
Effect
This statement declares a symbolic field called <fs>. At runtime, you can assign a concrete field to the field symbol using ASSIGN. All operations performed with the field symbol then directly affect the field assigned to it.
You can only use one of the additions.
Example
Output aircraft type from the table SFLIGHT using a field symbol:
FIELD-SYMBOLS <PT> TYPE ANY.
DATA SFLIGHT_WA TYPE SFLIGHT.
ASSIGN SFLIGHT_WA-PLANETYPE TO <PT>.
WRITE <PT>.
Addition 1
... TYPE type
Addition 2
... TYPE REF TO cif
Addition 3
... TYPE REF TO DATA
Addition 4
... TYPE LINE OF type
Addition 5
... LIKE s
Addition 6
... LIKE LINE OF s
Addition 7
... TYPE tabkind
Effect
You can define the type of the field symbol using additions 2 to 7 (just as you can for FORM parameters (compare Defining the Type of Subroutine Parameters). When you use the ASSIGN statement, the system carries out the same type checks as for USING parameters of FORMs.
This addition is not allowed in an ABAP Objects context. See Cannot Use Obsolete Casting for FIELD SYMBOLS.
In some cases, the syntax rules that apply to Unicode programs are different than those for non-Unicode programs. See Defining Types Using STRUCTURE.
Effect
Assigns any (internal) field string or structure to the field symbol from the ABAP Dictionary (s). All fields of the structure can be addressed by name: <fs>-fieldname. The structured field symbol points initially to the work area wa specified after DEFAULT.
The work area wa must be at least as long as the structure s. If s contains fields of the type I or F, wa should have the structure s or at least begin in that way, since otherwise alignment problems may occur.
Example
Address components of the flight bookings table SBOOK using a field symbol:
DATA SBOOK_WA LIKE SBOOK.
FIELD-SYMBOLS <SB> STRUCTURE SBOOK
DEFAULT SBOOK_WA.
WRITE: <SB>-BOOKID, <SB>-FLDATE.
<b>Reward points for useful Answers</b>
Regards
Anji -
Problem with field-symbols in UNICODE conversion
Hi all.
I'm in a UNICODE conversion project and I have a problem with a program that uses field-symbols.
DATA: BEGIN OF wa_data_aux,
mandt LIKE zindices-mandt,
kschl LIKE zindices-kschl,
datab LIKE zindices-datab,
valor LIKE zindices-valor,
descripcion LIKE zindices-descripcion,
ernam LIKE zindices-ernam,
erdat LIKE zindices-erdat,
waers LIKE zindices-waers,
END OF wa_data_aux.
FIELD-SYMBOLS:
<fs2> TYPE ANY,
<fs3> LIKE wa_data_aux.
<fs2> = <fs3>.
This assignment results in a DUMP.
Can anybody help me to solve this problem?
Thanks!!TYPES: BEGIN OF wa_data_aux,
mandt TYPE mandt,
kschl TYPE kschl,
erdat TYPE d,
waers TYPE waers,
END OF wa_data_aux.
DATA: w_aux TYPE wa_data_aux.
FIELD-SYMBOLS:
<fs2> TYPE ANY,
<fs3> TYPE wa_data_aux.
w_aux-mandt = '300'.
ASSIGN w_aux TO <fs3>.
ASSIGN <fs3> TO <fs2>.
WRITE : / <fs2>.
GBY. -
Using field-symbols giving dump " the output area is too small. "
Hi All,
Good Afternoon.
I am creating a report using field-symbols. The purpose is :
"This development involves extracting all the fields and the entire data, of any SAP table, and download it as a ; seperator file."
For this I wrote following code:
*& Report ZTOOL
REPORT ztool1.
Tables***************************************
DATA : i_tab TYPE TABLE OF dfies WITH HEADER LINE.
Variables***************************************
DATA dref TYPE REF TO data.
FIELD-SYMBOLS <ft> TYPE ANY TABLE." with header line.
FIELD-SYMBOLS <fs> TYPE ANY .
DATA: w_heading(5000),
w_line(5000).
CONSTANTS sep TYPE c VALUE ';'.
Selection Screen*********************************
SELECTION-SCREEN BEGIN OF BLOCK b1 WITH FRAME.
PARAMETERS : p_tab LIKE dfies-tabname OBLIGATORY.
PARAMETERS : p_file(100) TYPE c .
PARAMETERS : p_lfile(100) TYPE c .
SELECTION-SCREEN END OF BLOCK b1.
START-OF-SELECTION.
CALL FUNCTION 'GET_FIELDTAB'
EXPORTING
langu = sy-langu
ONLY = ' '
tabname = p_tab
WITHTEXT = 'X'
IMPORTING
HEADER =
RC =
TABLES
fieldtab = i_tab
EXCEPTIONS
internal_error = 1
no_texts_found = 2
table_has_no_fields = 3
table_not_activ = 4
OTHERS = 5
IF sy-subrc <> 0.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.
SELECT * FROM (p_tab) INTO <fs> .
endselect.
CREATE DATA dref TYPE STANDARD TABLE OF (p_tab).
ENDSELECT.
assign dref to <fs> casting.
ASSIGN dref->* TO <ft>.
SELECT & FROM (p_tab) INTO table <ft>.
OPEN DATASET p_lfile FOR INPUT IN TEXT MODE ENCODING DEFAULT.
LOOP AT i_tab.
IF sy-index = 1.
w_heading = i_tab-fieldname.
ELSE.
CONCATENATE w_heading i_tab-fieldname INTO w_heading SEPARATED BY sep.
ENDIF.
ENDLOOP.
TRANSFER w_heading TO p_lfile.
LOOP AT <ft> into <ft>.
clear w_line.
LOOP AT i_tab.
ASSIGN COMPONENT i_tab-fieldname OF STRUCTURE <ft> TO <fs>.
IF sy-index = 1.
w_line = <fs> .
ELSE.
CONCATENATE w_line <fs> into w_line SEPARATED BY sep.
ENDIF.
ENDLOOP.
TRANSFER w_line TO p_file.
ENDLOOP.
The program is executed well till the statement :
SELECT * FROM (p_tab) INTO <fs> .
endselect.
But here it gives the following dump :
"Error analysis
In an Open SQL select, the output area used t
records must be at least as wide as the datab
records are being read.
In this particular case, the database table i
but the output area is only 2 bytes wide."
Can you please help me solve this problem.
Thanks in advance.Hi Abhii,
Both are having the same number of fields.
The only problem is with the data and time (in my scenario). Here, actual length of date is 8 and maximum length is 10. and for time the actual length is 6 and maximum length is 8.
So, my work area it is taking only the actual length but not the maximum length because of this it is going to dump.
Can i have any thing which also considers the maximum length of any field at a domain level so that by work area bytes should match according to the db table byte length.
Thanks
rohith -
Using field-symbols with FOR ALL ENTRIES IN ...
Hi all of you,
Is it possible to use field symbol by the FOR ALL THE ENTRIES IN itab.
Normally, isn't possible.
So my problem is that I'm having duplicate code.
I've something like this.
IF ap_objcl EQ omaterial.
SELECT objectid
INTO TABLE i_cdpos
FROM cdpos
FOR ALL ENTRIES IN otf_materials
WHERE objectclas = ap_objcl AND
tabname = otf_materials-tablename AND
fname = otf_materials-fieldname.
ELSEIF ap_objcl EQ otf_documents...
And I'm looking to use otf_materials and otf_documents
So, instead to duplicate the code, I'm looking for a way to restrain the code by using maybe field symbols.
Ideal :
FIELD-SYMBOLS : <otf_mats_docs> LIKE OTF_TABLE.
IF ap_objcl EQ omaterial
ASSIGN local copy of otf_materials TO <otf_mats_docs> CASTING.
ELSEIF ap_objcl EQ odocuments
ASSIGN local copy of otf_documents TO <otf_mats_docs> CASTING.
ENDIF.
SELECT objectid
INTO TABLE i_cdpos
FROM cdpos
FOR ALL ENTRIES IN <otf_mats_docs>
WHERE objectclas = ap_objcl AND
tabname = <otf_mats_docs>-tablename AND
fname = <otf_mats_docs>-fieldname.
IF ap_objcl EQ omaterials.
*Do nothing
ELSEIF ap_objcl EQ odocuments.
*Do something with the date in otf_documents.
ENDIF.
Regards,
KaisHi,
Ok, using forms is great things to deal with it.
But, may be it'll slow down the program and I need a really rapid program.
I tried using form.
The problem by pushing the FOR ALL ENTRIES IN <structure>
didn't works.
It tells me that the structure that I pushed via "using" is not an internal table.
The same structure work find in the global program.
What should I do ?.
The structure is given by as a parameters in Function Module.
FORM data_search
USING
object_cl TYPE j_objnr
table_data LIKE ****structure****
CHANGING
global_lst TYPE ANY TABLE.
DATA : BEGIN OF otf_list OCCURS 0,
objectid TYPE cdpos-objectid,
END OF otf_list.
DATA : ii_cdpos LIKE TABLE OF otf_list WITH HEADER LINE.
IF table_data IS NOT INITIAL.
SELECT objectid
INTO TABLE ii_cdpos
FROM cdpos
FOR ALL ENTRIES IN table_data
WHERE objectclas = object_cl AND
tabname = table_data-tablename AND
fname = table_data-fieldname.
ELSE.
SELECT objectid
INTO TABLE i_cdpos
FROM cdpos
WHERE objectclas = ap_objcl.
ENDIF.
SELECT DISTINCT objectid
INTO TABLE global_lst
FROM cdhdr
FOR ALL ENTRIES IN ii_cdpos
WHERE ( ( udate GT from_date AND udate LT to_date ) OR
( udate EQ from_date AND udate NE to_date AND utime GE from_time ) OR
* ( udate NE from_date AND udate EQ to_date AND utime LE to_time ) OR
* ( udate EQ from_date AND udate EQ to_date AND utime GE from_time AND utime LE to_time )
( udate EQ to_date AND (
udate NE from_date OR
utime GE from_time
AND utime LE to_time )
) AND
objectclas = ap_objcl AND
objectid = ii_cdpos-objectid.
ENDFORM. -
Modify DB by single field using Field Symbol
Hi,
please help me ,actually i have not use the field symbol in any object. i have one requirement ,i have to modify the DB by field STATUS using Field symbol ,
I am sending u my code so please help me how can i modify DB using field symbol..
gw_msg3_status1 = k_status1 .
LOOP AT gi_msg3 INTO gs_msg3.
gs_msg3-status = gw_msg3_status1 .
gs_msg3-issue = lw_issuno.
MODIFY gi_msg3 FROM gs_msg3 TRANSPORTING status.
MODIFY gi_msg3 INDEX sy-tabix FROM gs_msg3 TRANSPORTING issue status.
ENDLOOP.
Thanks & Regards,
Meenakshiperform dboperation_table using 'SET' 'BIRTHDT' '=' <fs>.
perform dboperation_table using 'WHERE' 'PARTNER' '=' <fs>
perform dboperation_update using 'BUT000'.
form dboperation_table
using p_type
p_var1
p_var2
p_var3.
data: t_l type cmst_str_data.
data: d_cx_root type ref to cx_root,
d_text type string.
try.
clear t_l.
if p_var3 is not initial.
t_l = p_var3.
condense t_l.
concatenate '''' t_l '''' into t_l.
endif.
concatenate p_var1 p_var2 t_l into t_l
separated by space.
case p_type.
when 'SET'. append t_l to g_s_t.
when 'WHERE'. append t_l to g_w_t.
endcase.
catch cx_root into d_cx_root.
d_text = d_cx_root->get_text( ).
message a398(00) with d_text.
endtry.
endform. "DBOPERATION_table
form dboperation_update
using p_tabname type zdboperation-tabname.
data: tabname type bus_table.
data: d_cx_root type ref to cx_root,
d_text type string.
try.
tabname-tabname = p_tabname.
call function 'ZDBOPERATION_UPDATE'
in update task
exporting
tabname = tabname
tables
where_table = g_w_t
set_table = g_s_t.
catch cx_root into d_cx_root.
d_text = d_cx_root->get_text( ).
message a398(00) with d_text.
endtry.
endform. "DBOPERATION_update
Hope it will help you.
Regards,
Madan. -
Delete row from internal table using field symbol.
Hi friends,
I created dynamic internal table using field symbol. I want to delete some data using where clause.
for example. i want to use like,
DELETE <FS> WHERE KUNNR = WA_KNA1-KUNNR.
Like the above statment it won't work. How i can use delete with where clause in field symbols.
Hope any one can help me.
Thanks and regards
Srikanth. Shi Srikanth,
I think you have to LOOP through the whole internal table and check each line and decide to delete or not:
LOOP at <itab> INTO <wa>.
ASSIGN COMPONENT 'KUNNR' OF STRUCTURE <wa> TO <field>.
CHECK <field> IS ASSIGNED.
IF <field> EQ WA_KNA1-KUNNR.
DELETE ...
ENDIF.
UNASSIGN <field>.
ENDLOOP.
hope this helps
ec
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