ABAP Select data from SAP table SAWE_S_SA_CAND_LIST_ITM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SAWE_S_SA_CAND_LIST_ITM
*  INTO TABLE @DATA(IT_SAWE_S_SA_CAND_LIST_ITM2).
*--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_SAWE_S_SA_CAND_LIST_ITM INDEX 1 INTO DATA(WA_SAWE_S_SA_CAND_LIST_ITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SAWE_S_SA_CAND_LIST_ITM>-KEY = 1.
<SAWE_S_SA_CAND_LIST_ITM>-PARENT_KEY = 1.
<SAWE_S_SA_CAND_LIST_ITM>-ROOT_KEY = 1.
<SAWE_S_SA_CAND_LIST_ITM>-PERNR = 1.
<SAWE_S_SA_CAND_LIST_ITM>-TIME_AVAIL_DF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SAWE_S_SA_CAND_LIST_ITM-TIME_AVAIL_DT, sy-vline,
  WA_SAWE_S_SA_CAND_LIST_ITM-SKILL1, sy-vline,
  WA_SAWE_S_SA_CAND_LIST_ITM-SKILL2, sy-vline,
  WA_SAWE_S_SA_CAND_LIST_ITM-SKILL3, sy-vline,
  WA_SAWE_S_SA_CAND_LIST_ITM-START_DATE, sy-vline,
  WA_SAWE_S_SA_CAND_LIST_ITM-END_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SAWE_S_SA_CAND_LIST_ITM 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_SAWE_S_SA_CAND_LIST_ITM 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_SAWE_S_SA_CAND_LIST_ITM INTO WA_SAWE_S_SA_CAND_LIST_ITM.


*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 KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SAWE_S_SA_CAND_LIST_ITM-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SAWE_S_SA_CAND_LIST_ITM-KOSTL.
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_SAWE_S_SA_CAND_LIST_ITM_STR, 
KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ROOT_KEY TYPE STRING,
PERNR TYPE STRING,
TIME_AVAIL_DF TYPE STRING,
TIME_AVAIL_DT TYPE STRING,
SKILL1 TYPE STRING,
SKILL2 TYPE STRING,
SKILL3 TYPE STRING,
START_DATE TYPE STRING,
END_DATE TYPE STRING,
EXPECTED_DAYS TYPE STRING,
MAXIMUM_DAYS TYPE STRING,
CNAME TYPE STRING,
VORNA TYPE STRING,
NACHN TYPE STRING,
ORGEH TYPE STRING,
PERSG TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
GSBER TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
QUALI TYPE STRING,
BUSINESS_AREA_TEXT TYPE STRING,
COMPANY_CODE_TEXT TYPE STRING,
COST_CENTER_TEXT TYPE STRING,
CONTROLLING_AREA_TEXT TYPE STRING,
PERSONNEL_AREA_TEXT TYPE STRING,
EMPLOYEE_GROUP_TEXT TYPE STRING,
TIME_AVAIL_CATS TYPE STRING,
TIME_FORECASTED TYPE STRING,
TIME_AVAIL_SUM TYPE STRING,
TIME_AVAIL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SAWE_S_SA_CAND_LIST_ITM_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_SAWE_S_SA_CAND_LIST_ITM_STR-KEY sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-PARENT_KEY sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-ROOT_KEY sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-PERNR sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-TIME_AVAIL_DF sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-TIME_AVAIL_DT sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-SKILL1 sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-SKILL2 sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-SKILL3 sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-START_DATE sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-END_DATE sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-EXPECTED_DAYS sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-MAXIMUM_DAYS sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-CNAME sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-VORNA sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-NACHN sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-ORGEH sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-PERSG sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-BUKRS sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-WERKS sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-GSBER sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-KOKRS sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-KOSTL sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-QUALI sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-BUSINESS_AREA_TEXT sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-COMPANY_CODE_TEXT sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-COST_CENTER_TEXT sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-CONTROLLING_AREA_TEXT sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-PERSONNEL_AREA_TEXT sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-EMPLOYEE_GROUP_TEXT sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-TIME_AVAIL_CATS sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-TIME_FORECASTED sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-TIME_AVAIL_SUM sy-vline 
WA_SAWE_S_SA_CAND_LIST_ITM_STR-TIME_AVAIL sy-vline      INTO ld_text SEPARATED BY SPACE.

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