ABAP Select data from SAP table LFS_SSTN_TREND_SOCIAL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LFS_SSTN_TREND_SOCIAL
*  INTO TABLE @DATA(IT_LFS_SSTN_TREND_SOCIAL2).
*--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_LFS_SSTN_TREND_SOCIAL INDEX 1 INTO DATA(WA_LFS_SSTN_TREND_SOCIAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LFS_SSTN_TREND_SOCIAL>-LIFNR = 1.
<LFS_SSTN_TREND_SOCIAL>-UUID = 1.
<LFS_SSTN_TREND_SOCIAL>-SOC_COMMENTS = 1.
<LFS_SSTN_TREND_SOCIAL>-SOC_PROC_SYS = 1.
<LFS_SSTN_TREND_SOCIAL>-HUMAN_RIGHTS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LFS_SSTN_TREND_SOCIAL-HEALTH_SAFETY, sy-vline,
  WA_LFS_SSTN_TREND_SOCIAL-SOC_FINES, sy-vline,
  WA_LFS_SSTN_TREND_SOCIAL-SOC_FINES_CURR, sy-vline,
  WA_LFS_SSTN_TREND_SOCIAL-DISCRIMINATION, sy-vline,
  WA_LFS_SSTN_TREND_SOCIAL-CHILD_LABOUR, sy-vline,
  WA_LFS_SSTN_TREND_SOCIAL-FORCED_LABOUR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LFS_SSTN_TREND_SOCIAL 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_LFS_SSTN_TREND_SOCIAL 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_LFS_SSTN_TREND_SOCIAL INTO WA_LFS_SSTN_TREND_SOCIAL.


*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 LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LFS_SSTN_TREND_SOCIAL-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LFS_SSTN_TREND_SOCIAL-LIFNR.
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_LFS_SSTN_TREND_SOCIAL_STR, 
LIFNR TYPE STRING,
UUID TYPE STRING,
SOC_COMMENTS TYPE STRING,
SOC_PROC_SYS TYPE STRING,
HUMAN_RIGHTS TYPE STRING,
HEALTH_SAFETY TYPE STRING,
SOC_FINES TYPE STRING,
SOC_FINES_CURR TYPE STRING,
DISCRIMINATION TYPE STRING,
CHILD_LABOUR TYPE STRING,
FORCED_LABOUR TYPE STRING,
COL_BARGAINING TYPE STRING,
ANTI_CORRUPTION TYPE STRING,
WOMEN_OWNED TYPE STRING,
WOM_OWNED_EXP TYPE STRING,
MINORITY_OWNED TYPE STRING,
MIN_OWNED_EXP TYPE STRING,
DUMMY2 TYPE STRING,
SOC_PROC_SYS_UI TYPE STRING,
HUMAN_RIGHTS_UI TYPE STRING,
HEALTH_SAFETY_UI TYPE STRING,
DISCRIMINATION_UI TYPE STRING,
CHILD_LABOUR_UI TYPE STRING,
FORCED_LABOUR_UI TYPE STRING,
COL_BARGAINING_UI TYPE STRING,
ANTI_CORRUPTION_UI TYPE STRING,
VALIDITY_RANGE TYPE STRING,
VALIDITY_START TYPE STRING,
VALIDITY_END TYPE STRING,
CAT_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LFS_SSTN_TREND_SOCIAL_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_LFS_SSTN_TREND_SOCIAL_STR-LIFNR sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-UUID sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-SOC_COMMENTS sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-SOC_PROC_SYS sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-HUMAN_RIGHTS sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-HEALTH_SAFETY sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-SOC_FINES sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-SOC_FINES_CURR sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-DISCRIMINATION sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-CHILD_LABOUR sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-FORCED_LABOUR sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-COL_BARGAINING sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-ANTI_CORRUPTION sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-WOMEN_OWNED sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-WOM_OWNED_EXP sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-MINORITY_OWNED sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-MIN_OWNED_EXP sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-DUMMY2 sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-SOC_PROC_SYS_UI sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-HUMAN_RIGHTS_UI sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-HEALTH_SAFETY_UI sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-DISCRIMINATION_UI sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-CHILD_LABOUR_UI sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-FORCED_LABOUR_UI sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-COL_BARGAINING_UI sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-ANTI_CORRUPTION_UI sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-VALIDITY_RANGE sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-VALIDITY_START sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-VALIDITY_END sy-vline 
WA_LFS_SSTN_TREND_SOCIAL_STR-CAT_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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