ABAP Select data from SAP table E2CAWNM into internal table
Get Example source ABAP code based on a different SAP table
Below is a number of ABAP code snippets to demonstrate how to select data from SAP E2CAWNM table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to E2CAWNM. See here for more generic Select statement tips.
Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.
There is also a full declaration of the E2CAWNM table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.
DATA: IT_E2CAWNM TYPE STANDARD TABLE OF E2CAWNM,
WA_E2CAWNM TYPE E2CAWNM,
GD_STR TYPE STRING.
DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.
FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <E2CAWNM> TYPE E2CAWNM.
*Process all fields in table header/work area as string values
PERFORM process_as_string_field_values CHANGING wa_E2CAWNM.
SELECT *
*restrict ABAP select to first 10 rows
UP TO 10 ROWS
FROM E2CAWNM
INTO TABLE IT_E2CAWNM.
*Select data and declare internal table using in-line method @DATA
*SELECT *
* FROM E2CAWNM
* INTO TABLE @DATA(IT_E2CAWNM2).
*--Further methods of using ABAP code to select data from SAP database tables
*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_E2CAWNM INDEX 1 INTO DATA(WA_E2CAWNM2).
*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E2CAWNM ASSIGNING <E2CAWNM>.
*To update a field value using a field symbol simply change the value via the field symbol pointer<E2CAWNM>-MSGFN = 1.
<E2CAWNM>-ATNAM = 1.
<E2CAWNM>-ATZHL = 1.
<E2CAWNM>-ATWRT = 1.
<E2CAWNM>-ATFLV = 1.
ENDLOOP. LOOP AT IT_E2CAWNM INTO WA_E2CAWNM. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_E2CAWNM-ATFLB, sy-vline,
WA_E2CAWNM-ATCOD, sy-vline,
WA_E2CAWNM-ATSTD, sy-vline,
WA_E2CAWNM-ATAWE, sy-vline,
WA_E2CAWNM-ATAW1, sy-vline,
WA_E2CAWNM-ATIDN, sy-vline.
ENDLOOP. *Add any further fields from structure WA_E2CAWNM you want to display... WRITE:/ sy-uline. * Aternatively use generic code to Write field values (and NAME) to screen report DO. ASSIGN COMPONENT sy-index OF STRUCTURE wa_E2CAWNM TO <field>. IF sy-subrc <> 0. EXIT. ENDIF. WRITE:/ 'Field Value', <field>, sy-vline. gd_str = <field> . lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ). lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ). WRITE:/ 'Field Name', lv_fieldname. ENDDO. *Redo loop but convert all fields from internal to out value LOOP AT IT_E2CAWNM INTO WA_E2CAWNM. *Write horizonal line to screen report. WRITE:/ sy-uline. *Convert all fields to display/output versions using conversion routines PERFORM convert_all_field_values CHANGING wa_EKKO. ENDLOOP. *&---------------------------------------------------------------------* *& Form convert_all_field_values *&---------------------------------------------------------------------* FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO. DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
*Conversion exit ALPHA, internal->external for field DOKNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_E2CAWNM-DOKNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_E2CAWNM-DOKNR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field AENNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_E2CAWNM-AENNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_E2CAWNM-AENNR.
WRITE:/ 'New Value:', ld_input.
ENDFORM. *&---------------------------------------------------------------------* *& Form process_as_string_field_values *&---------------------------------------------------------------------* FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO. TYPES: BEGIN OF T_E2CAWNM_STR,
MSGFN TYPE STRING,
ATNAM TYPE STRING,
ATZHL TYPE STRING,
ATWRT TYPE STRING,
ATFLV TYPE STRING,
ATFLB TYPE STRING,
ATCOD TYPE STRING,
ATSTD TYPE STRING,
ATAWE TYPE STRING,
ATAW1 TYPE STRING,
ATIDN TYPE STRING,
DOKNR TYPE STRING,
DOKAR TYPE STRING,
DOKTL TYPE STRING,
DOKVR TYPE STRING,
SPRAS TYPE STRING,
TXTNR TYPE STRING,
DATUV TYPE STRING,
AENNR TYPE STRING,
LKENZ TYPE STRING,
ATZHH TYPE STRING,
ATWHI TYPE STRING,
ATTLV TYPE STRING,
ATTLB TYPE STRING,
ATPRZ TYPE STRING,
ATINC TYPE STRING,END OF T_EKKO_STR. DATA: WA_E2CAWNM_STR type T_EKKO_STR. DATA: ld_text TYPE string. LOOP AT IT_EKKO INTO WA_EKKO. MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR. CONCATENATE: sy-vline
WA_E2CAWNM_STR-MSGFN sy-vline
WA_E2CAWNM_STR-ATNAM sy-vline
WA_E2CAWNM_STR-ATZHL sy-vline
WA_E2CAWNM_STR-ATWRT sy-vline
WA_E2CAWNM_STR-ATFLV sy-vline
WA_E2CAWNM_STR-ATFLB sy-vline
WA_E2CAWNM_STR-ATCOD sy-vline
WA_E2CAWNM_STR-ATSTD sy-vline
WA_E2CAWNM_STR-ATAWE sy-vline
WA_E2CAWNM_STR-ATAW1 sy-vline
WA_E2CAWNM_STR-ATIDN sy-vline
WA_E2CAWNM_STR-DOKNR sy-vline
WA_E2CAWNM_STR-DOKAR sy-vline
WA_E2CAWNM_STR-DOKTL sy-vline
WA_E2CAWNM_STR-DOKVR sy-vline
WA_E2CAWNM_STR-SPRAS sy-vline
WA_E2CAWNM_STR-TXTNR sy-vline
WA_E2CAWNM_STR-DATUV sy-vline
WA_E2CAWNM_STR-AENNR sy-vline
WA_E2CAWNM_STR-LKENZ sy-vline
WA_E2CAWNM_STR-ATZHH sy-vline
WA_E2CAWNM_STR-ATWHI sy-vline
WA_E2CAWNM_STR-ATTLV sy-vline
WA_E2CAWNM_STR-ATTLB sy-vline
WA_E2CAWNM_STR-ATPRZ sy-vline
WA_E2CAWNM_STR-ATINC sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.
