ABAP Select data from SAP table P12P1_FORM_SENIORITY_CALC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P12P1_FORM_SENIORITY_CALC 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 P12P1_FORM_SENIORITY_CALC. 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 P12P1_FORM_SENIORITY_CALC 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_P12P1_FORM_SENIORITY_CALC TYPE STANDARD TABLE OF P12P1_FORM_SENIORITY_CALC,
      WA_P12P1_FORM_SENIORITY_CALC TYPE P12P1_FORM_SENIORITY_CALC,
      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: <P12P1_FORM_SENIORITY_CALC> TYPE P12P1_FORM_SENIORITY_CALC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P12P1_FORM_SENIORITY_CALC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P12P1_FORM_SENIORITY_CALC
  INTO TABLE IT_P12P1_FORM_SENIORITY_CALC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P12P1_FORM_SENIORITY_CALC
*  INTO TABLE @DATA(IT_P12P1_FORM_SENIORITY_CALC2).
*--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_P12P1_FORM_SENIORITY_CALC INDEX 1 INTO DATA(WA_P12P1_FORM_SENIORITY_CALC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P12P1_FORM_SENIORITY_CALC ASSIGNING <P12P1_FORM_SENIORITY_CALC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P12P1_FORM_SENIORITY_CALC>-PERS_DATA = 1.
<P12P1_FORM_SENIORITY_CALC>-PERNR = 1.
<P12P1_FORM_SENIORITY_CALC>-BUTXT = 1.
<P12P1_FORM_SENIORITY_CALC>-NAME1 = 1.
<P12P1_FORM_SENIORITY_CALC>-NACHN = 1.

ENDLOOP.

LOOP AT IT_P12P1_FORM_SENIORITY_CALC INTO WA_P12P1_FORM_SENIORITY_CALC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P12P1_FORM_SENIORITY_CALC-VORNA, sy-vline,
  WA_P12P1_FORM_SENIORITY_CALC-PTEXT, sy-vline,
  WA_P12P1_FORM_SENIORITY_CALC-TRFGR, sy-vline,
  WA_P12P1_FORM_SENIORITY_CALC-H_MIN, sy-vline,
  WA_P12P1_FORM_SENIORITY_CALC-H_MAX, sy-vline,
  WA_P12P1_FORM_SENIORITY_CALC-H_MIN2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P12P1_FORM_SENIORITY_CALC 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_P12P1_FORM_SENIORITY_CALC 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_P12P1_FORM_SENIORITY_CALC INTO WA_P12P1_FORM_SENIORITY_CALC.


*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 PDATE, internal->external for field GBDAT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_P12P1_FORM_SENIORITY_CALC-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P12P1_FORM_SENIORITY_CALC-GBDAT.
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_P12P1_FORM_SENIORITY_CALC_STR, 
PERS_DATA TYPE STRING,
PERNR TYPE STRING,
BUTXT TYPE STRING,
NAME1 TYPE STRING,
NACHN TYPE STRING,
VORNA TYPE STRING,
PTEXT TYPE STRING,
TRFGR TYPE STRING,
H_MIN TYPE STRING,
H_MAX TYPE STRING,
H_MIN2 TYPE STRING,
H_MAX2 TYPE STRING,
H_CURR2 TYPE STRING,
START_REC TYPE STRING,
GBDAT TYPE STRING,
MINAG TYPE STRING,
L_DATE TYPE STRING,
SENIORITY TYPE STRING,
BUTXT TYPE STRING,
GRADE TYPE STRING,
PTEXT TYPE STRING,
PRCT TYPE STRING,
STARTDATE TYPE STRING,
ENDDATE TYPE STRING,
LVL TYPE STRING,
CALYY TYPE STRING,
CALMM TYPE STRING,
ES_DATE TYPE STRING,
ES_YEARS TYPE STRING,
ES_MONTHS TYPE STRING,
US_DATE TYPE STRING,
US_YEARS TYPE STRING,
YB_DATE TYPE STRING,
YB_AMOUNT TYPE STRING,
CURRENCY TYPE STRING,
YB_LEVEL TYPE STRING,
YB_AMOUNT2 TYPE STRING,
H_CURR2 TYPE STRING,
FTR_PAY_RISE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P12P1_FORM_SENIORITY_CALC_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_P12P1_FORM_SENIORITY_CALC_STR-PERS_DATA sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-PERNR sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-BUTXT sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-NAME1 sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-NACHN sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-VORNA sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-PTEXT sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-TRFGR sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-H_MIN sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-H_MAX sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-H_MIN2 sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-H_MAX2 sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-H_CURR2 sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-START_REC sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-GBDAT sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-MINAG sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-L_DATE sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-SENIORITY sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-BUTXT sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-GRADE sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-PTEXT sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-PRCT sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-STARTDATE sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-ENDDATE sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-LVL sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-CALYY sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-CALMM sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-ES_DATE sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-ES_YEARS sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-ES_MONTHS sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-US_DATE sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-US_YEARS sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-YB_DATE sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-YB_AMOUNT sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-CURRENCY sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-YB_LEVEL sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-YB_AMOUNT2 sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-H_CURR2 sy-vline 
WA_P12P1_FORM_SENIORITY_CALC_STR-FTR_PAY_RISE sy-vline      INTO ld_text SEPARATED BY SPACE.

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