ABAP Select data from SAP table IDCN_GA_COMMONINFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDCN_GA_COMMONINFO
*  INTO TABLE @DATA(IT_IDCN_GA_COMMONINFO2).
*--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_IDCN_GA_COMMONINFO INDEX 1 INTO DATA(WA_IDCN_GA_COMMONINFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDCN_GA_COMMONINFO>-F_B_BUKRS = 1.
<IDCN_GA_COMMONINFO>-B_CODE = 1.
<IDCN_GA_COMMONINFO>-B_DESC = 1.
<IDCN_GA_COMMONINFO>-ORG_DESC = 1.
<IDCN_GA_COMMONINFO>-ORG_CODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDCN_GA_COMMONINFO-ORG_CATG, sy-vline,
  WA_IDCN_GA_COMMONINFO-IND_CODE, sy-vline,
  WA_IDCN_GA_COMMONINFO-DEV_BY, sy-vline,
  WA_IDCN_GA_COMMONINFO-SOFT_REL_VER, sy-vline,
  WA_IDCN_GA_COMMONINFO-LOC_CURR, sy-vline,
  WA_IDCN_GA_COMMONINFO-FISCAL_YEAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDCN_GA_COMMONINFO 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_IDCN_GA_COMMONINFO 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_IDCN_GA_COMMONINFO INTO WA_IDCN_GA_COMMONINFO.


*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 GJAHR, internal->external for field FISCAL_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IDCN_GA_COMMONINFO-FISCAL_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCN_GA_COMMONINFO-FISCAL_YEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DEP_CODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IDCN_GA_COMMONINFO-DEP_CODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCN_GA_COMMONINFO-DEP_CODE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field V_CODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IDCN_GA_COMMONINFO-V_CODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCN_GA_COMMONINFO-V_CODE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CUST_CODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IDCN_GA_COMMONINFO-CUST_CODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCN_GA_COMMONINFO-CUST_CODE.
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_IDCN_GA_COMMONINFO_STR, 
F_B_BUKRS TYPE STRING,
B_CODE TYPE STRING,
B_DESC TYPE STRING,
ORG_DESC TYPE STRING,
ORG_CODE TYPE STRING,
ORG_CATG TYPE STRING,
IND_CODE TYPE STRING,
DEV_BY TYPE STRING,
SOFT_REL_VER TYPE STRING,
LOC_CURR TYPE STRING,
FISCAL_YEAR TYPE STRING,
REL_VER TYPE STRING,
FISCAL_PRD TYPE STRING,
PRD_STRAT_DATE TYPE STRING,
PRD_END_DATE TYPE STRING,
DOC_TYPE TYPE STRING,
DOC_DESC TYPE STRING,
DOC_S_DESC TYPE STRING,
ER_TYPE TYPE STRING,
ER_DESC TYPE STRING,
CURR_TYPE TYPE STRING,
CURR_DESC TYPE STRING,
PAY_METHOD TYPE STRING,
PAY_METHOD_DESC TYPE STRING,
DEP_CODE TYPE STRING,
DEP_DESC TYPE STRING,
SUP_CODE TYPE STRING,
EMP_NO TYPE STRING,
EMP_NAME TYPE STRING,
ID_DOC_TYPE TYPE STRING,
ID_DOC_NO TYPE STRING,
GENDER TYPE STRING,
BIRTHDATE TYPE STRING,
DEPT_CODE TYPE STRING,
EMPLOYMENT_START_DATE TYPE STRING,
EMPLOYMENT_END_DATE TYPE STRING,
V_CODE TYPE STRING,
V_DES TYPE STRING,
V_S_DESC TYPE STRING,
CUST_CODE TYPE STRING,
CUST_DESC TYPE STRING,
CUST_S_DESC TYPE STRING,
ARCHIVE_CODE TYPE STRING,
ARCHIVE_NAME TYPE STRING,
ARCHIVE_DESC TYPE STRING,
HIERARCHY TYPE STRING,
ARCHIVE_NUM_RULE TYPE STRING,
ARCHIVE_CODE_V TYPE STRING,
ARCHIVE_VALUE_CODE TYPE STRING,
ARCHIVE_VALUE_NAME TYPE STRING,
ARCHIVE_VALUE_DESC TYPE STRING,
ARCHIVE_VALUE_UPPER_NODE TYPE STRING,
ARCHIVE_VALUE_LEVEL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDCN_GA_COMMONINFO_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_IDCN_GA_COMMONINFO_STR-F_B_BUKRS sy-vline 
WA_IDCN_GA_COMMONINFO_STR-B_CODE sy-vline 
WA_IDCN_GA_COMMONINFO_STR-B_DESC sy-vline 
WA_IDCN_GA_COMMONINFO_STR-ORG_DESC sy-vline 
WA_IDCN_GA_COMMONINFO_STR-ORG_CODE sy-vline 
WA_IDCN_GA_COMMONINFO_STR-ORG_CATG sy-vline 
WA_IDCN_GA_COMMONINFO_STR-IND_CODE sy-vline 
WA_IDCN_GA_COMMONINFO_STR-DEV_BY sy-vline 
WA_IDCN_GA_COMMONINFO_STR-SOFT_REL_VER sy-vline 
WA_IDCN_GA_COMMONINFO_STR-LOC_CURR sy-vline 
WA_IDCN_GA_COMMONINFO_STR-FISCAL_YEAR sy-vline 
WA_IDCN_GA_COMMONINFO_STR-REL_VER sy-vline 
WA_IDCN_GA_COMMONINFO_STR-FISCAL_PRD sy-vline 
WA_IDCN_GA_COMMONINFO_STR-PRD_STRAT_DATE sy-vline 
WA_IDCN_GA_COMMONINFO_STR-PRD_END_DATE sy-vline 
WA_IDCN_GA_COMMONINFO_STR-DOC_TYPE sy-vline 
WA_IDCN_GA_COMMONINFO_STR-DOC_DESC sy-vline 
WA_IDCN_GA_COMMONINFO_STR-DOC_S_DESC sy-vline 
WA_IDCN_GA_COMMONINFO_STR-ER_TYPE sy-vline 
WA_IDCN_GA_COMMONINFO_STR-ER_DESC sy-vline 
WA_IDCN_GA_COMMONINFO_STR-CURR_TYPE sy-vline 
WA_IDCN_GA_COMMONINFO_STR-CURR_DESC sy-vline 
WA_IDCN_GA_COMMONINFO_STR-PAY_METHOD sy-vline 
WA_IDCN_GA_COMMONINFO_STR-PAY_METHOD_DESC sy-vline 
WA_IDCN_GA_COMMONINFO_STR-DEP_CODE sy-vline 
WA_IDCN_GA_COMMONINFO_STR-DEP_DESC sy-vline 
WA_IDCN_GA_COMMONINFO_STR-SUP_CODE sy-vline 
WA_IDCN_GA_COMMONINFO_STR-EMP_NO sy-vline 
WA_IDCN_GA_COMMONINFO_STR-EMP_NAME sy-vline 
WA_IDCN_GA_COMMONINFO_STR-ID_DOC_TYPE sy-vline 
WA_IDCN_GA_COMMONINFO_STR-ID_DOC_NO sy-vline 
WA_IDCN_GA_COMMONINFO_STR-GENDER sy-vline 
WA_IDCN_GA_COMMONINFO_STR-BIRTHDATE sy-vline 
WA_IDCN_GA_COMMONINFO_STR-DEPT_CODE sy-vline 
WA_IDCN_GA_COMMONINFO_STR-EMPLOYMENT_START_DATE sy-vline 
WA_IDCN_GA_COMMONINFO_STR-EMPLOYMENT_END_DATE sy-vline 
WA_IDCN_GA_COMMONINFO_STR-V_CODE sy-vline 
WA_IDCN_GA_COMMONINFO_STR-V_DES sy-vline 
WA_IDCN_GA_COMMONINFO_STR-V_S_DESC sy-vline 
WA_IDCN_GA_COMMONINFO_STR-CUST_CODE sy-vline 
WA_IDCN_GA_COMMONINFO_STR-CUST_DESC sy-vline 
WA_IDCN_GA_COMMONINFO_STR-CUST_S_DESC sy-vline 
WA_IDCN_GA_COMMONINFO_STR-ARCHIVE_CODE sy-vline 
WA_IDCN_GA_COMMONINFO_STR-ARCHIVE_NAME sy-vline 
WA_IDCN_GA_COMMONINFO_STR-ARCHIVE_DESC sy-vline 
WA_IDCN_GA_COMMONINFO_STR-HIERARCHY sy-vline 
WA_IDCN_GA_COMMONINFO_STR-ARCHIVE_NUM_RULE sy-vline 
WA_IDCN_GA_COMMONINFO_STR-ARCHIVE_CODE_V sy-vline 
WA_IDCN_GA_COMMONINFO_STR-ARCHIVE_VALUE_CODE sy-vline 
WA_IDCN_GA_COMMONINFO_STR-ARCHIVE_VALUE_NAME sy-vline 
WA_IDCN_GA_COMMONINFO_STR-ARCHIVE_VALUE_DESC sy-vline 
WA_IDCN_GA_COMMONINFO_STR-ARCHIVE_VALUE_UPPER_NODE sy-vline 
WA_IDCN_GA_COMMONINFO_STR-ARCHIVE_VALUE_LEVEL sy-vline      INTO ld_text SEPARATED BY SPACE.

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