ABAP Select data from SAP table QAMS_PD_8D into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP QAMS_PD_8D 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 QAMS_PD_8D. 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 QAMS_PD_8D 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_QAMS_PD_8D TYPE STANDARD TABLE OF QAMS_PD_8D,
      WA_QAMS_PD_8D TYPE QAMS_PD_8D,
      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: <QAMS_PD_8D> TYPE QAMS_PD_8D.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_QAMS_PD_8D.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM QAMS_PD_8D
  INTO TABLE IT_QAMS_PD_8D.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QAMS_PD_8D
*  INTO TABLE @DATA(IT_QAMS_PD_8D2).
*--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_QAMS_PD_8D INDEX 1 INTO DATA(WA_QAMS_PD_8D2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_QAMS_PD_8D ASSIGNING <QAMS_PD_8D>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QAMS_PD_8D>-HEAD = 1.
<QAMS_PD_8D>-NEW_PAGE = 1.
<QAMS_PD_8D>-COUNTRY = 1.
<QAMS_PD_8D>-LOGO = 1.
<QAMS_PD_8D>-TYPE_DESCR = 1.

ENDLOOP.

LOOP AT IT_QAMS_PD_8D INTO WA_QAMS_PD_8D.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QAMS_PD_8D-ID, sy-vline,
  WA_QAMS_PD_8D-REFNO, sy-vline,
  WA_QAMS_PD_8D-TITLE_8D, sy-vline,
  WA_QAMS_PD_8D-CRE_START_DATE, sy-vline,
  WA_QAMS_PD_8D-REP_START_DATE, sy-vline,
  WA_QAMS_PD_8D-PHASE_TXT_HEAD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QAMS_PD_8D 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_QAMS_PD_8D 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_QAMS_PD_8D INTO WA_QAMS_PD_8D.


*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 ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QAMS_PD_8D-ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QAMS_PD_8D-ID.
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_QAMS_PD_8D_STR, 
HEAD TYPE STRING,
NEW_PAGE TYPE STRING,
COUNTRY TYPE STRING,
LOGO TYPE STRING,
TYPE_DESCR TYPE STRING,
ID TYPE STRING,
REFNO TYPE STRING,
TITLE_8D TYPE STRING,
CRE_START_DATE TYPE STRING,
REP_START_DATE TYPE STRING,
PHASE_TXT_HEAD TYPE STRING,
PHASE_TXT TYPE STRING,
D1 TYPE STRING,
D2 TYPE STRING,
D3 TYPE STRING,
D4 TYPE STRING,
D5 TYPE STRING,
D6 TYPE STRING,
D7 TYPE STRING,
D8 TYPE STRING,
PHASE_ACTIVE TYPE STRING,
D1 TYPE STRING,
D2 TYPE STRING,
D3 TYPE STRING,
D4 TYPE STRING,
D5 TYPE STRING,
D6 TYPE STRING,
D7 TYPE STRING,
D8 TYPE STRING,
STATUS TYPE STRING,
D1 TYPE STRING,
D2 TYPE STRING,
D3 TYPE STRING,
D4 TYPE STRING,
D5 TYPE STRING,
D6 TYPE STRING,
D7 TYPE STRING,
D8 TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
REF_OBJ_NAME_TXT TYPE STRING,
REF_OBJ_ID TYPE STRING,
REF_OBJ_NAME TYPE STRING,
CONTACT_NAME TYPE STRING,
CONTACT_ADR TYPE STRING,
CONTACT_TEL TYPE STRING,
CONTACT_FAX TYPE STRING,
CONTACT_EMAIL TYPE STRING,
ATT_NO TYPE STRING,
D1_BUPA TYPE STRING,
D2_ISS_DESC TYPE STRING,
TEXT TYPE STRING,
LONG_TEXT_RAW TYPE STRING,
LONG_TEXT_FORMATTED TYPE STRING,
CODE_TEXT TYPE STRING,
CODE_GRP_TEXT TYPE STRING,
LOC_CODE_TEXT TYPE STRING,
LOC_GRP_TEXT TYPE STRING,
QUANTITY TYPE STRING,
ATT TYPE STRING,
D3_ACT TYPE STRING,
D4_CAUSE TYPE STRING,
D5_CAUSE_ACT TYPE STRING,
D6_CAUSE_ACT TYPE STRING,
D7_PREVENT_ERR TYPE STRING,
D8_TEAM_SUCCESS TYPE STRING,
CODE_TXT TYPE STRING,
RES_DESCR_LONG TYPE STRING,
RES_DESCR_LONG_FORMATTED TYPE STRING,
REQ_END_DATE TYPE STRING,
ATT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QAMS_PD_8D_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_QAMS_PD_8D_STR-HEAD sy-vline 
WA_QAMS_PD_8D_STR-NEW_PAGE sy-vline 
WA_QAMS_PD_8D_STR-COUNTRY sy-vline 
WA_QAMS_PD_8D_STR-LOGO sy-vline 
WA_QAMS_PD_8D_STR-TYPE_DESCR sy-vline 
WA_QAMS_PD_8D_STR-ID sy-vline 
WA_QAMS_PD_8D_STR-REFNO sy-vline 
WA_QAMS_PD_8D_STR-TITLE_8D sy-vline 
WA_QAMS_PD_8D_STR-CRE_START_DATE sy-vline 
WA_QAMS_PD_8D_STR-REP_START_DATE sy-vline 
WA_QAMS_PD_8D_STR-PHASE_TXT_HEAD sy-vline 
WA_QAMS_PD_8D_STR-PHASE_TXT sy-vline 
WA_QAMS_PD_8D_STR-D1 sy-vline 
WA_QAMS_PD_8D_STR-D2 sy-vline 
WA_QAMS_PD_8D_STR-D3 sy-vline 
WA_QAMS_PD_8D_STR-D4 sy-vline 
WA_QAMS_PD_8D_STR-D5 sy-vline 
WA_QAMS_PD_8D_STR-D6 sy-vline 
WA_QAMS_PD_8D_STR-D7 sy-vline 
WA_QAMS_PD_8D_STR-D8 sy-vline 
WA_QAMS_PD_8D_STR-PHASE_ACTIVE sy-vline 
WA_QAMS_PD_8D_STR-D1 sy-vline 
WA_QAMS_PD_8D_STR-D2 sy-vline 
WA_QAMS_PD_8D_STR-D3 sy-vline 
WA_QAMS_PD_8D_STR-D4 sy-vline 
WA_QAMS_PD_8D_STR-D5 sy-vline 
WA_QAMS_PD_8D_STR-D6 sy-vline 
WA_QAMS_PD_8D_STR-D7 sy-vline 
WA_QAMS_PD_8D_STR-D8 sy-vline 
WA_QAMS_PD_8D_STR-STATUS sy-vline 
WA_QAMS_PD_8D_STR-D1 sy-vline 
WA_QAMS_PD_8D_STR-D2 sy-vline 
WA_QAMS_PD_8D_STR-D3 sy-vline 
WA_QAMS_PD_8D_STR-D4 sy-vline 
WA_QAMS_PD_8D_STR-D5 sy-vline 
WA_QAMS_PD_8D_STR-D6 sy-vline 
WA_QAMS_PD_8D_STR-D7 sy-vline 
WA_QAMS_PD_8D_STR-D8 sy-vline 
WA_QAMS_PD_8D_STR-MATNR sy-vline 
WA_QAMS_PD_8D_STR-MAKTX sy-vline 
WA_QAMS_PD_8D_STR-REF_OBJ_NAME_TXT sy-vline 
WA_QAMS_PD_8D_STR-REF_OBJ_ID sy-vline 
WA_QAMS_PD_8D_STR-REF_OBJ_NAME sy-vline 
WA_QAMS_PD_8D_STR-CONTACT_NAME sy-vline 
WA_QAMS_PD_8D_STR-CONTACT_ADR sy-vline 
WA_QAMS_PD_8D_STR-CONTACT_TEL sy-vline 
WA_QAMS_PD_8D_STR-CONTACT_FAX sy-vline 
WA_QAMS_PD_8D_STR-CONTACT_EMAIL sy-vline 
WA_QAMS_PD_8D_STR-ATT_NO sy-vline 
WA_QAMS_PD_8D_STR-D1_BUPA sy-vline 
WA_QAMS_PD_8D_STR-D2_ISS_DESC sy-vline 
WA_QAMS_PD_8D_STR-TEXT sy-vline 
WA_QAMS_PD_8D_STR-LONG_TEXT_RAW sy-vline 
WA_QAMS_PD_8D_STR-LONG_TEXT_FORMATTED sy-vline 
WA_QAMS_PD_8D_STR-CODE_TEXT sy-vline 
WA_QAMS_PD_8D_STR-CODE_GRP_TEXT sy-vline 
WA_QAMS_PD_8D_STR-LOC_CODE_TEXT sy-vline 
WA_QAMS_PD_8D_STR-LOC_GRP_TEXT sy-vline 
WA_QAMS_PD_8D_STR-QUANTITY sy-vline 
WA_QAMS_PD_8D_STR-ATT sy-vline 
WA_QAMS_PD_8D_STR-D3_ACT sy-vline 
WA_QAMS_PD_8D_STR-D4_CAUSE sy-vline 
WA_QAMS_PD_8D_STR-D5_CAUSE_ACT sy-vline 
WA_QAMS_PD_8D_STR-D6_CAUSE_ACT sy-vline 
WA_QAMS_PD_8D_STR-D7_PREVENT_ERR sy-vline 
WA_QAMS_PD_8D_STR-D8_TEAM_SUCCESS sy-vline 
WA_QAMS_PD_8D_STR-CODE_TXT sy-vline 
WA_QAMS_PD_8D_STR-RES_DESCR_LONG sy-vline 
WA_QAMS_PD_8D_STR-RES_DESCR_LONG_FORMATTED sy-vline 
WA_QAMS_PD_8D_STR-REQ_END_DATE sy-vline 
WA_QAMS_PD_8D_STR-ATT sy-vline      INTO ld_text SEPARATED BY SPACE.

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