ABAP Select data from SAP table PIQAD_STUDY_OFFER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQAD_STUDY_OFFER
*  INTO TABLE @DATA(IT_PIQAD_STUDY_OFFER2).
*--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_PIQAD_STUDY_OFFER INDEX 1 INTO DATA(WA_PIQAD_STUDY_OFFER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQAD_STUDY_OFFER>-S0_OBJID = 1.
<PIQAD_STUDY_OFFER>-S0_SHORT_TEXT = 1.
<PIQAD_STUDY_OFFER>-S0_TEXT = 1.
<PIQAD_STUDY_OFFER>-S0_CATEGORY = 1.
<PIQAD_STUDY_OFFER>-S0_CATEGORY_TEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQAD_STUDY_OFFER-CG_OBJID, sy-vline,
  WA_PIQAD_STUDY_OFFER-CG_SHORT_TEXT, sy-vline,
  WA_PIQAD_STUDY_OFFER-CG_TEXT, sy-vline,
  WA_PIQAD_STUDY_OFFER-CQ_OBJID, sy-vline,
  WA_PIQAD_STUDY_OFFER-CQ_SHORT_TEXT, sy-vline,
  WA_PIQAD_STUDY_OFFER-CQ_TEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQAD_STUDY_OFFER 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_PIQAD_STUDY_OFFER 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_PIQAD_STUDY_OFFER INTO WA_PIQAD_STUDY_OFFER.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PIQAD_STUDY_OFFER_STR, 
S0_OBJID TYPE STRING,
S0_SHORT_TEXT TYPE STRING,
S0_TEXT TYPE STRING,
S0_CATEGORY TYPE STRING,
S0_CATEGORY_TEXT TYPE STRING,
CG_OBJID TYPE STRING,
CG_SHORT_TEXT TYPE STRING,
CG_TEXT TYPE STRING,
CQ_OBJID TYPE STRING,
CQ_SHORT_TEXT TYPE STRING,
CQ_TEXT TYPE STRING,
SC_OBJID TYPE STRING,
SC_SHORT_TEXT TYPE STRING,
SC_TEXT TYPE STRING,
SUBJECT_SEM TYPE STRING,
S0CAT TYPE STRING,
S0_TYPE TYPE STRING,
ADM_RESTRICT TYPE STRING,
SCHEM_ID TYPE STRING,
SPGRP_ID TYPE STRING,
S0PATTERN TYPE STRING,
PERCENT_ALLOC TYPE STRING,
S0_TYPET TYPE STRING,
SCHEM_TEXT TYPE STRING,
SPGRP_TEXT TYPE STRING,
GRPVAR_TEXT TYPE STRING,
OFFERPATTERN TYPE STRING,
OFFERPATTERNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQAD_STUDY_OFFER_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_PIQAD_STUDY_OFFER_STR-S0_OBJID sy-vline 
WA_PIQAD_STUDY_OFFER_STR-S0_SHORT_TEXT sy-vline 
WA_PIQAD_STUDY_OFFER_STR-S0_TEXT sy-vline 
WA_PIQAD_STUDY_OFFER_STR-S0_CATEGORY sy-vline 
WA_PIQAD_STUDY_OFFER_STR-S0_CATEGORY_TEXT sy-vline 
WA_PIQAD_STUDY_OFFER_STR-CG_OBJID sy-vline 
WA_PIQAD_STUDY_OFFER_STR-CG_SHORT_TEXT sy-vline 
WA_PIQAD_STUDY_OFFER_STR-CG_TEXT sy-vline 
WA_PIQAD_STUDY_OFFER_STR-CQ_OBJID sy-vline 
WA_PIQAD_STUDY_OFFER_STR-CQ_SHORT_TEXT sy-vline 
WA_PIQAD_STUDY_OFFER_STR-CQ_TEXT sy-vline 
WA_PIQAD_STUDY_OFFER_STR-SC_OBJID sy-vline 
WA_PIQAD_STUDY_OFFER_STR-SC_SHORT_TEXT sy-vline 
WA_PIQAD_STUDY_OFFER_STR-SC_TEXT sy-vline 
WA_PIQAD_STUDY_OFFER_STR-SUBJECT_SEM sy-vline 
WA_PIQAD_STUDY_OFFER_STR-S0CAT sy-vline 
WA_PIQAD_STUDY_OFFER_STR-S0_TYPE sy-vline 
WA_PIQAD_STUDY_OFFER_STR-ADM_RESTRICT sy-vline 
WA_PIQAD_STUDY_OFFER_STR-SCHEM_ID sy-vline 
WA_PIQAD_STUDY_OFFER_STR-SPGRP_ID sy-vline 
WA_PIQAD_STUDY_OFFER_STR-S0PATTERN sy-vline 
WA_PIQAD_STUDY_OFFER_STR-PERCENT_ALLOC sy-vline 
WA_PIQAD_STUDY_OFFER_STR-S0_TYPET sy-vline 
WA_PIQAD_STUDY_OFFER_STR-SCHEM_TEXT sy-vline 
WA_PIQAD_STUDY_OFFER_STR-SPGRP_TEXT sy-vline 
WA_PIQAD_STUDY_OFFER_STR-GRPVAR_TEXT sy-vline 
WA_PIQAD_STUDY_OFFER_STR-OFFERPATTERN sy-vline 
WA_PIQAD_STUDY_OFFER_STR-OFFERPATTERNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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