ABAP Select data from SAP table /SAPAPO/ST_ADVM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPAPO/ST_ADVM 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 /SAPAPO/ST_ADVM. 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 /SAPAPO/ST_ADVM 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_/SAPAPO/ST_ADVM TYPE STANDARD TABLE OF /SAPAPO/ST_ADVM,
      WA_/SAPAPO/ST_ADVM TYPE /SAPAPO/ST_ADVM,
      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: </SAPAPO/ST_ADVM> TYPE /SAPAPO/ST_ADVM.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPAPO/ST_ADVM
  INTO TABLE IT_/SAPAPO/ST_ADVM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/ST_ADVM
*  INTO TABLE @DATA(IT_/SAPAPO/ST_ADVM2).
*--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_/SAPAPO/ST_ADVM INDEX 1 INTO DATA(WA_/SAPAPO/ST_ADVM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPAPO/ST_ADVM ASSIGNING </SAPAPO/ST_ADVM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/ST_ADVM>-GEN_PROGRAM = 1.
</SAPAPO/ST_ADVM>-LINES_PROGRAM = 1.
</SAPAPO/ST_ADVM>-LINES_FORM = 1.
</SAPAPO/ST_ADVM>-COLS_PROGRAM = 1.
</SAPAPO/ST_ADVM>-COLS_FORM = 1.

ENDLOOP.

LOOP AT IT_/SAPAPO/ST_ADVM INTO WA_/SAPAPO/ST_ADVM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/ST_ADVM-SAVE_PROGRAM, sy-vline,
  WA_/SAPAPO/ST_ADVM-SAVE_FORM, sy-vline,
  WA_/SAPAPO/ST_ADVM-MTEXT, sy-vline,
  WA_/SAPAPO/ST_ADVM-RELEN, sy-vline,
  WA_/SAPAPO/ST_ADVM-USE_DESCR, sy-vline,
  WA_/SAPAPO/ST_ADVM-CDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/ST_ADVM 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_/SAPAPO/ST_ADVM 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_/SAPAPO/ST_ADVM INTO WA_/SAPAPO/ST_ADVM.


*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_/SAPAPO/ST_ADVM_STR, 
GEN_PROGRAM TYPE STRING,
LINES_PROGRAM TYPE STRING,
LINES_FORM TYPE STRING,
COLS_PROGRAM TYPE STRING,
COLS_FORM TYPE STRING,
SAVE_PROGRAM TYPE STRING,
SAVE_FORM TYPE STRING,
MTEXT TYPE STRING,
RELEN TYPE STRING,
USE_DESCR TYPE STRING,
CDAT TYPE STRING,
CTIME TYPE STRING,
AUTOR TYPE STRING,
UDAT TYPE STRING,
UPNAM TYPE STRING,
UTIME TYPE STRING,
SDP_BOOK TYPE STRING,
SDP_VIEW TYPE STRING,
SAP_DELIVERED TYPE STRING,
ALERT_BUFFER_LIM TYPE STRING,
FLG_ALERT_ASYNC TYPE STRING,
READ_OPTION TYPE STRING,
BUFFER_ENTRIES TYPE STRING,
APPLICATION TYPE STRING,
GROUPING TYPE STRING,
GROUP_ICON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/ST_ADVM_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_/SAPAPO/ST_ADVM_STR-GEN_PROGRAM sy-vline 
WA_/SAPAPO/ST_ADVM_STR-LINES_PROGRAM sy-vline 
WA_/SAPAPO/ST_ADVM_STR-LINES_FORM sy-vline 
WA_/SAPAPO/ST_ADVM_STR-COLS_PROGRAM sy-vline 
WA_/SAPAPO/ST_ADVM_STR-COLS_FORM sy-vline 
WA_/SAPAPO/ST_ADVM_STR-SAVE_PROGRAM sy-vline 
WA_/SAPAPO/ST_ADVM_STR-SAVE_FORM sy-vline 
WA_/SAPAPO/ST_ADVM_STR-MTEXT sy-vline 
WA_/SAPAPO/ST_ADVM_STR-RELEN sy-vline 
WA_/SAPAPO/ST_ADVM_STR-USE_DESCR sy-vline 
WA_/SAPAPO/ST_ADVM_STR-CDAT sy-vline 
WA_/SAPAPO/ST_ADVM_STR-CTIME sy-vline 
WA_/SAPAPO/ST_ADVM_STR-AUTOR sy-vline 
WA_/SAPAPO/ST_ADVM_STR-UDAT sy-vline 
WA_/SAPAPO/ST_ADVM_STR-UPNAM sy-vline 
WA_/SAPAPO/ST_ADVM_STR-UTIME sy-vline 
WA_/SAPAPO/ST_ADVM_STR-SDP_BOOK sy-vline 
WA_/SAPAPO/ST_ADVM_STR-SDP_VIEW sy-vline 
WA_/SAPAPO/ST_ADVM_STR-SAP_DELIVERED sy-vline 
WA_/SAPAPO/ST_ADVM_STR-ALERT_BUFFER_LIM sy-vline 
WA_/SAPAPO/ST_ADVM_STR-FLG_ALERT_ASYNC sy-vline 
WA_/SAPAPO/ST_ADVM_STR-READ_OPTION sy-vline 
WA_/SAPAPO/ST_ADVM_STR-BUFFER_ENTRIES sy-vline 
WA_/SAPAPO/ST_ADVM_STR-APPLICATION sy-vline 
WA_/SAPAPO/ST_ADVM_STR-GROUPING sy-vline 
WA_/SAPAPO/ST_ADVM_STR-GROUP_ICON sy-vline      INTO ld_text SEPARATED BY SPACE.

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