ABAP Select data from SAP table ESE_FEH_CASE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ESE_FEH_CASE 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 ESE_FEH_CASE. 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 ESE_FEH_CASE 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_ESE_FEH_CASE TYPE STANDARD TABLE OF ESE_FEH_CASE,
      WA_ESE_FEH_CASE TYPE ESE_FEH_CASE,
      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: <ESE_FEH_CASE> TYPE ESE_FEH_CASE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESE_FEH_CASE
*  INTO TABLE @DATA(IT_ESE_FEH_CASE2).
*--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_ESE_FEH_CASE INDEX 1 INTO DATA(WA_ESE_FEH_CASE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ESE_FEH_CASE ASSIGNING <ESE_FEH_CASE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESE_FEH_CASE>-FEH_RERUN_CNTRL = 1.
<ESE_FEH_CASE>-PREMAPPING_CONTENT = 1.
<ESE_FEH_CASE>-SRVEXE_BO_NAME = 1.
<ESE_FEH_CASE>-SRVEXE_OPERATION = 1.
<ESE_FEH_CASE>-SRVEXE_OPERATION_OUT_ASYN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESE_FEH_CASE-SRVEXE_OPERATION_MSGTYPE, sy-vline,
  WA_ESE_FEH_CASE-SRVEXE_SUPPRESS_OUT_PROC, sy-vline,
  WA_ESE_FEH_CASE-SRVEXE_FILL_MSG_HEADER_OUT, sy-vline,
  WA_ESE_FEH_CASE-SRVEXE_IMPL_PARAMTAB, sy-vline,
  WA_ESE_FEH_CASE-SRVEXE_IMPL_CLASS, sy-vline,
  WA_ESE_FEH_CASE-SRVEXE_IMPL_CREATE_METHOD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESE_FEH_CASE 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_ESE_FEH_CASE 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_ESE_FEH_CASE INTO WA_ESE_FEH_CASE.


*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 SYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESE_FEH_CASE-SYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESE_FEH_CASE-SYSTEM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OBJLOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESE_FEH_CASE-OBJLOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESE_FEH_CASE-OBJLOGSYS.
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_ESE_FEH_CASE_STR, 
FEH_RERUN_CNTRL TYPE STRING,
PREMAPPING_CONTENT TYPE STRING,
SRVEXE_BO_NAME TYPE STRING,
SRVEXE_OPERATION TYPE STRING,
SRVEXE_OPERATION_OUT_ASYN TYPE STRING,
SRVEXE_OPERATION_MSGTYPE TYPE STRING,
SRVEXE_SUPPRESS_OUT_PROC TYPE STRING,
SRVEXE_FILL_MSG_HEADER_OUT TYPE STRING,
SRVEXE_IMPL_PARAMTAB TYPE STRING,
SRVEXE_IMPL_CLASS TYPE STRING,
SRVEXE_IMPL_CREATE_METHOD TYPE STRING,
OUTPUT_CONTENT_FAIL TYPE STRING,
OUTPUT_CONTENT_FINISH TYPE STRING,
OUTPUT_TYPE TYPE STRING,
OUTPUT_MESSAGELOG_FAIL TYPE STRING,
OUTPUT_MESSAGELOG_FINISH TYPE STRING,
DEX_SRV_PROCESS TYPE STRING,
CORRELATION_ID TYPE STRING,
ADDITIONAL_DATA TYPE STRING,
FEH_CASE_INFO TYPE STRING,
EXT_PPO_ID TYPE STRING,
UUID TYPE STRING,
ADDITIONAL_ID TYPE STRING,
MAIN_MESSAGE TYPE STRING,
CATEGORY TYPE STRING,
TYPE TYPE STRING,
ID TYPE STRING,
NUMBER TYPE STRING,
MESSAGE TYPE STRING,
LOG_NO TYPE STRING,
LOG_MSG_NO TYPE STRING,
MESSAGE_V1 TYPE STRING,
MESSAGE_V2 TYPE STRING,
MESSAGE_V3 TYPE STRING,
MESSAGE_V4 TYPE STRING,
PARAMETER TYPE STRING,
ROW TYPE STRING,
FIELD TYPE STRING,
SYSTEM TYPE STRING,
ADD_MESSAGES TYPE STRING,
MAIN_OBJECT TYPE STRING,
OBJCAT TYPE STRING,
OBJTYPE TYPE STRING,
OBJKEY TYPE STRING,
OBJLOGSYS TYPE STRING,
ADD_OBJECTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESE_FEH_CASE_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_ESE_FEH_CASE_STR-FEH_RERUN_CNTRL sy-vline 
WA_ESE_FEH_CASE_STR-PREMAPPING_CONTENT sy-vline 
WA_ESE_FEH_CASE_STR-SRVEXE_BO_NAME sy-vline 
WA_ESE_FEH_CASE_STR-SRVEXE_OPERATION sy-vline 
WA_ESE_FEH_CASE_STR-SRVEXE_OPERATION_OUT_ASYN sy-vline 
WA_ESE_FEH_CASE_STR-SRVEXE_OPERATION_MSGTYPE sy-vline 
WA_ESE_FEH_CASE_STR-SRVEXE_SUPPRESS_OUT_PROC sy-vline 
WA_ESE_FEH_CASE_STR-SRVEXE_FILL_MSG_HEADER_OUT sy-vline 
WA_ESE_FEH_CASE_STR-SRVEXE_IMPL_PARAMTAB sy-vline 
WA_ESE_FEH_CASE_STR-SRVEXE_IMPL_CLASS sy-vline 
WA_ESE_FEH_CASE_STR-SRVEXE_IMPL_CREATE_METHOD sy-vline 
WA_ESE_FEH_CASE_STR-OUTPUT_CONTENT_FAIL sy-vline 
WA_ESE_FEH_CASE_STR-OUTPUT_CONTENT_FINISH sy-vline 
WA_ESE_FEH_CASE_STR-OUTPUT_TYPE sy-vline 
WA_ESE_FEH_CASE_STR-OUTPUT_MESSAGELOG_FAIL sy-vline 
WA_ESE_FEH_CASE_STR-OUTPUT_MESSAGELOG_FINISH sy-vline 
WA_ESE_FEH_CASE_STR-DEX_SRV_PROCESS sy-vline 
WA_ESE_FEH_CASE_STR-CORRELATION_ID sy-vline 
WA_ESE_FEH_CASE_STR-ADDITIONAL_DATA sy-vline 
WA_ESE_FEH_CASE_STR-FEH_CASE_INFO sy-vline 
WA_ESE_FEH_CASE_STR-EXT_PPO_ID sy-vline 
WA_ESE_FEH_CASE_STR-UUID sy-vline 
WA_ESE_FEH_CASE_STR-ADDITIONAL_ID sy-vline 
WA_ESE_FEH_CASE_STR-MAIN_MESSAGE sy-vline 
WA_ESE_FEH_CASE_STR-CATEGORY sy-vline 
WA_ESE_FEH_CASE_STR-TYPE sy-vline 
WA_ESE_FEH_CASE_STR-ID sy-vline 
WA_ESE_FEH_CASE_STR-NUMBER sy-vline 
WA_ESE_FEH_CASE_STR-MESSAGE sy-vline 
WA_ESE_FEH_CASE_STR-LOG_NO sy-vline 
WA_ESE_FEH_CASE_STR-LOG_MSG_NO sy-vline 
WA_ESE_FEH_CASE_STR-MESSAGE_V1 sy-vline 
WA_ESE_FEH_CASE_STR-MESSAGE_V2 sy-vline 
WA_ESE_FEH_CASE_STR-MESSAGE_V3 sy-vline 
WA_ESE_FEH_CASE_STR-MESSAGE_V4 sy-vline 
WA_ESE_FEH_CASE_STR-PARAMETER sy-vline 
WA_ESE_FEH_CASE_STR-ROW sy-vline 
WA_ESE_FEH_CASE_STR-FIELD sy-vline 
WA_ESE_FEH_CASE_STR-SYSTEM sy-vline 
WA_ESE_FEH_CASE_STR-ADD_MESSAGES sy-vline 
WA_ESE_FEH_CASE_STR-MAIN_OBJECT sy-vline 
WA_ESE_FEH_CASE_STR-OBJCAT sy-vline 
WA_ESE_FEH_CASE_STR-OBJTYPE sy-vline 
WA_ESE_FEH_CASE_STR-OBJKEY sy-vline 
WA_ESE_FEH_CASE_STR-OBJLOGSYS sy-vline 
WA_ESE_FEH_CASE_STR-ADD_OBJECTS sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.