ABAP Select data from SAP table AKB_TRANS_CHECK_10 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP AKB_TRANS_CHECK_10 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 AKB_TRANS_CHECK_10. 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 AKB_TRANS_CHECK_10 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_AKB_TRANS_CHECK_10 TYPE STANDARD TABLE OF AKB_TRANS_CHECK_10,
      WA_AKB_TRANS_CHECK_10 TYPE AKB_TRANS_CHECK_10,
      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: <AKB_TRANS_CHECK_10> TYPE AKB_TRANS_CHECK_10.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_AKB_TRANS_CHECK_10.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM AKB_TRANS_CHECK_10
  INTO TABLE IT_AKB_TRANS_CHECK_10.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AKB_TRANS_CHECK_10
*  INTO TABLE @DATA(IT_AKB_TRANS_CHECK_102).
*--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_AKB_TRANS_CHECK_10 INDEX 1 INTO DATA(WA_AKB_TRANS_CHECK_102).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_AKB_TRANS_CHECK_10 ASSIGNING <AKB_TRANS_CHECK_10>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AKB_TRANS_CHECK_10>-PROJECT = 1.
<AKB_TRANS_CHECK_10>-OBJ_TYPE = 1.
<AKB_TRANS_CHECK_10>-OBJ_NAME = 1.
<AKB_TRANS_CHECK_10>-IS_FREEZABLE = 1.
<AKB_TRANS_CHECK_10>-IS_CHANGABLE = 1.

ENDLOOP.

LOOP AT IT_AKB_TRANS_CHECK_10 INTO WA_AKB_TRANS_CHECK_10.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AKB_TRANS_CHECK_10-ERRORFLAG, sy-vline,
  WA_AKB_TRANS_CHECK_10-DLVUNIT, sy-vline,
  WA_AKB_TRANS_CHECK_10-DEVCLASS, sy-vline,
  WA_AKB_TRANS_CHECK_10-SRCSYSTEM, sy-vline,
  WA_AKB_TRANS_CHECK_10-RESPONSIBLE, sy-vline,
  WA_AKB_TRANS_CHECK_10-TREE_LEVEL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AKB_TRANS_CHECK_10 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_AKB_TRANS_CHECK_10 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_AKB_TRANS_CHECK_10 INTO WA_AKB_TRANS_CHECK_10.


*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_AKB_TRANS_CHECK_10_STR, 
PROJECT TYPE STRING,
OBJ_TYPE TYPE STRING,
OBJ_NAME TYPE STRING,
IS_FREEZABLE TYPE STRING,
IS_CHANGABLE TYPE STRING,
ERRORFLAG TYPE STRING,
DLVUNIT TYPE STRING,
DEVCLASS TYPE STRING,
SRCSYSTEM TYPE STRING,
RESPONSIBLE TYPE STRING,
TREE_LEVEL TYPE STRING,
FROZEN_STATE TYPE STRING,
TRKORR TYPE STRING,
TRKORR_DATE TYPE STRING,
TRKORR_USER TYPE STRING,
TRKORR_TIME TYPE STRING,
REF_VERSNO TYPE STRING,
COMPATIBILITY TYPE STRING,
LUSER TYPE STRING,
LDATE TYPE STRING,
NOTE TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_AT TYPE STRING,
EXPERT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AKB_TRANS_CHECK_10_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_AKB_TRANS_CHECK_10_STR-PROJECT sy-vline 
WA_AKB_TRANS_CHECK_10_STR-OBJ_TYPE sy-vline 
WA_AKB_TRANS_CHECK_10_STR-OBJ_NAME sy-vline 
WA_AKB_TRANS_CHECK_10_STR-IS_FREEZABLE sy-vline 
WA_AKB_TRANS_CHECK_10_STR-IS_CHANGABLE sy-vline 
WA_AKB_TRANS_CHECK_10_STR-ERRORFLAG sy-vline 
WA_AKB_TRANS_CHECK_10_STR-DLVUNIT sy-vline 
WA_AKB_TRANS_CHECK_10_STR-DEVCLASS sy-vline 
WA_AKB_TRANS_CHECK_10_STR-SRCSYSTEM sy-vline 
WA_AKB_TRANS_CHECK_10_STR-RESPONSIBLE sy-vline 
WA_AKB_TRANS_CHECK_10_STR-TREE_LEVEL sy-vline 
WA_AKB_TRANS_CHECK_10_STR-FROZEN_STATE sy-vline 
WA_AKB_TRANS_CHECK_10_STR-TRKORR sy-vline 
WA_AKB_TRANS_CHECK_10_STR-TRKORR_DATE sy-vline 
WA_AKB_TRANS_CHECK_10_STR-TRKORR_USER sy-vline 
WA_AKB_TRANS_CHECK_10_STR-TRKORR_TIME sy-vline 
WA_AKB_TRANS_CHECK_10_STR-REF_VERSNO sy-vline 
WA_AKB_TRANS_CHECK_10_STR-COMPATIBILITY sy-vline 
WA_AKB_TRANS_CHECK_10_STR-LUSER sy-vline 
WA_AKB_TRANS_CHECK_10_STR-LDATE sy-vline 
WA_AKB_TRANS_CHECK_10_STR-NOTE sy-vline 
WA_AKB_TRANS_CHECK_10_STR-CHANGED_BY sy-vline 
WA_AKB_TRANS_CHECK_10_STR-CHANGED_AT sy-vline 
WA_AKB_TRANS_CHECK_10_STR-EXPERT sy-vline      INTO ld_text SEPARATED BY SPACE.

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