ABAP Select data from SAP table ESH_S_OM_ASWASGN 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 ESH_S_OM_ASWASGN 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 ESH_S_OM_ASWASGN. 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 ESH_S_OM_ASWASGN 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_ESH_S_OM_ASWASGN TYPE STANDARD TABLE OF ESH_S_OM_ASWASGN,
      WA_ESH_S_OM_ASWASGN TYPE ESH_S_OM_ASWASGN,
      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: <ESH_S_OM_ASWASGN> TYPE ESH_S_OM_ASWASGN.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ESH_S_OM_ASWASGN.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ESH_S_OM_ASWASGN
  INTO TABLE IT_ESH_S_OM_ASWASGN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESH_S_OM_ASWASGN
*  INTO TABLE @DATA(IT_ESH_S_OM_ASWASGN2).
*--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_ESH_S_OM_ASWASGN INDEX 1 INTO DATA(WA_ESH_S_OM_ASWASGN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ESH_S_OM_ASWASGN ASSIGNING <ESH_S_OM_ASWASGN>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESH_S_OM_ASWASGN>-MANDT = 1.
<ESH_S_OM_ASWASGN>-MODEL_GUID = 1.
<ESH_S_OM_ASWASGN>-SWASGN_GUID = 1.
<ESH_S_OM_ASWASGN>-TABNAME = 1.
<ESH_S_OM_ASWASGN>-TABKEY_GUID = 1.
ENDLOOP.

LOOP AT IT_ESH_S_OM_ASWASGN INTO WA_ESH_S_OM_ASWASGN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESH_S_OM_ASWASGN-LANGU, sy-vline,
WA_ESH_S_OM_ASWASGN-SWITCH_ID, sy-vline,
WA_ESH_S_OM_ASWASGN-SWITCH_ACTION, sy-vline,
WA_ESH_S_OM_ASWASGN-MODNAM_SEG, sy-vline,
WA_ESH_S_OM_ASWASGN-TIMESTMP_MOD_SEG, sy-vline,
WA_ESH_S_OM_ASWASGN-AREA_MOD_SEG, sy-vline.
ENDLOOP. *Add any further fields from structure WA_ESH_S_OM_ASWASGN 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_ESH_S_OM_ASWASGN 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_ESH_S_OM_ASWASGN INTO WA_ESH_S_OM_ASWASGN. *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 ISOLA, internal->external for field LANGU CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT' EXPORTING input = WA_ESH_S_OM_ASWASGN-LANGU IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ESH_S_OM_ASWASGN-LANGU.
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_ESH_S_OM_ASWASGN_STR,
MANDT TYPE STRING,
MODEL_GUID TYPE STRING,
SWASGN_GUID TYPE STRING,
TABNAME TYPE STRING,
TABKEY_GUID TYPE STRING,
LANGU TYPE STRING,
SWITCH_ID TYPE STRING,
SWITCH_ACTION TYPE STRING,
MODNAM_SEG TYPE STRING,
TIMESTMP_MOD_SEG TYPE STRING,
AREA_MOD_SEG TYPE STRING,
CRENAM_SEG TYPE STRING,
TIMESTMP_CRE_SEG TYPE STRING,
AREA_CRE_SEG TYPE STRING,
AENAM_SEG TYPE STRING,
TIMESTMP_AEN_SEG TYPE STRING,
ORG_SYSREL_GUID TYPE STRING,
UPDATE_FLAG TYPE STRING,END OF T_EKKO_STR. DATA: WA_ESH_S_OM_ASWASGN_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_ESH_S_OM_ASWASGN_STR-MANDT sy-vline
WA_ESH_S_OM_ASWASGN_STR-MODEL_GUID sy-vline
WA_ESH_S_OM_ASWASGN_STR-SWASGN_GUID sy-vline
WA_ESH_S_OM_ASWASGN_STR-TABNAME sy-vline
WA_ESH_S_OM_ASWASGN_STR-TABKEY_GUID sy-vline
WA_ESH_S_OM_ASWASGN_STR-LANGU sy-vline
WA_ESH_S_OM_ASWASGN_STR-SWITCH_ID sy-vline
WA_ESH_S_OM_ASWASGN_STR-SWITCH_ACTION sy-vline
WA_ESH_S_OM_ASWASGN_STR-MODNAM_SEG sy-vline
WA_ESH_S_OM_ASWASGN_STR-TIMESTMP_MOD_SEG sy-vline
WA_ESH_S_OM_ASWASGN_STR-AREA_MOD_SEG sy-vline
WA_ESH_S_OM_ASWASGN_STR-CRENAM_SEG sy-vline
WA_ESH_S_OM_ASWASGN_STR-TIMESTMP_CRE_SEG sy-vline
WA_ESH_S_OM_ASWASGN_STR-AREA_CRE_SEG sy-vline
WA_ESH_S_OM_ASWASGN_STR-AENAM_SEG sy-vline
WA_ESH_S_OM_ASWASGN_STR-TIMESTMP_AEN_SEG sy-vline
WA_ESH_S_OM_ASWASGN_STR-ORG_SYSREL_GUID sy-vline
WA_ESH_S_OM_ASWASGN_STR-UPDATE_FLAG sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.