ABAP Select data from SAP table GERO_CDIFIE into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GERO_CDIFIE
*  INTO TABLE @DATA(IT_GERO_CDIFIE2).
*--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_GERO_CDIFIE INDEX 1 INTO DATA(WA_GERO_CDIFIE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GERO_CDIFIE>-TABNM = 1.
<GERO_CDIFIE>-FIENM = 1.
<GERO_CDIFIE>-USGFL = 1.
<GERO_CDIFIE>-ROLNM = 1.
<GERO_CDIFIE>-DOMNM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GERO_CDIFIE-KEYFL, sy-vline,
  WA_GERO_CDIFIE-TIMFL, sy-vline,
  WA_GERO_CDIFIE-CHTAB, sy-vline,
  WA_GERO_CDIFIE-CHFIE, sy-vline,
  WA_GERO_CDIFIE-ENTAB, sy-vline,
  WA_GERO_CDIFIE-VALEX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GERO_CDIFIE 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_GERO_CDIFIE 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_GERO_CDIFIE INTO WA_GERO_CDIFIE.


*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 DTYPE, internal->external for field DTYPE
CALL FUNCTION 'CONVERSION_EXIT_DTYPE_OUTPUT'
  EXPORTING
    input =                      WA_GERO_CDIFIE-DTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GERO_CDIFIE-DTYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT0
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_GERO_CDIFIE-UNIT0
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GERO_CDIFIE-UNIT0.
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_GERO_CDIFIE_STR, 
TABNM TYPE STRING,
FIENM TYPE STRING,
USGFL TYPE STRING,
ROLNM TYPE STRING,
DOMNM TYPE STRING,
KEYFL TYPE STRING,
TIMFL TYPE STRING,
CHTAB TYPE STRING,
CHFIE TYPE STRING,
ENTAB TYPE STRING,
VALEX TYPE STRING,
FIXVL TYPE STRING,
TIMLC TYPE STRING,
RETAB TYPE STRING,
REFIE TYPE STRING,
REFIL TYPE STRING,
REFLL TYPE STRING,
VIEWN TYPE STRING,
TCDIS TYPE STRING,
TCMOD TYPE STRING,
SPCTR TYPE STRING,
ORTAB TYPE STRING,
ORFIE TYPE STRING,
POSIT TYPE STRING,
DTYPE TYPE STRING,
ITYPE TYPE STRING,
ILENG TYPE STRING,
OFFST TYPE STRING,
DIGIT TYPE STRING,
OUTLN TYPE STRING,
DECIM TYPE STRING,
DIMPR TYPE STRING,
ATRFL TYPE STRING,
REPIN TYPE STRING,
PLAIN TYPE STRING,
LITIN TYPE STRING,
RCSIN TYPE STRING,
RSLIN TYPE STRING,
CHAIN TYPE STRING,
AGGDI TYPE STRING,
AGGTM TYPE STRING,
AGGFI TYPE STRING,
PRDEC TYPE STRING,
PRSNT TYPE STRING,
OPORD TYPE STRING,
SBGRP TYPE STRING,
CCNUM TYPE STRING,
DCURR TYPE STRING,
RFTAB TYPE STRING,
RFFIE TYPE STRING,
DSRFF TYPE STRING,
CQMRK TYPE STRING,
CUKY0 TYPE STRING,
CQFIE TYPE STRING,
UNIT0 TYPE STRING,
CQDEC TYPE STRING,
PARID TYPE STRING,
CONVX TYPE STRING,
MASK TYPE STRING,
MASKL TYPE STRING,
TFLAG TYPE STRING,
DMAC TYPE STRING,
TXT_S TYPE STRING,
TXT_M TYPE STRING,
TXT_L TYPE STRING,
TXT_R TYPE STRING,
MEMID TYPE STRING,
CHNAM TYPE STRING,
CHDAT TYPE STRING,
CHTIM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GERO_CDIFIE_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_GERO_CDIFIE_STR-TABNM sy-vline 
WA_GERO_CDIFIE_STR-FIENM sy-vline 
WA_GERO_CDIFIE_STR-USGFL sy-vline 
WA_GERO_CDIFIE_STR-ROLNM sy-vline 
WA_GERO_CDIFIE_STR-DOMNM sy-vline 
WA_GERO_CDIFIE_STR-KEYFL sy-vline 
WA_GERO_CDIFIE_STR-TIMFL sy-vline 
WA_GERO_CDIFIE_STR-CHTAB sy-vline 
WA_GERO_CDIFIE_STR-CHFIE sy-vline 
WA_GERO_CDIFIE_STR-ENTAB sy-vline 
WA_GERO_CDIFIE_STR-VALEX sy-vline 
WA_GERO_CDIFIE_STR-FIXVL sy-vline 
WA_GERO_CDIFIE_STR-TIMLC sy-vline 
WA_GERO_CDIFIE_STR-RETAB sy-vline 
WA_GERO_CDIFIE_STR-REFIE sy-vline 
WA_GERO_CDIFIE_STR-REFIL sy-vline 
WA_GERO_CDIFIE_STR-REFLL sy-vline 
WA_GERO_CDIFIE_STR-VIEWN sy-vline 
WA_GERO_CDIFIE_STR-TCDIS sy-vline 
WA_GERO_CDIFIE_STR-TCMOD sy-vline 
WA_GERO_CDIFIE_STR-SPCTR sy-vline 
WA_GERO_CDIFIE_STR-ORTAB sy-vline 
WA_GERO_CDIFIE_STR-ORFIE sy-vline 
WA_GERO_CDIFIE_STR-POSIT sy-vline 
WA_GERO_CDIFIE_STR-DTYPE sy-vline 
WA_GERO_CDIFIE_STR-ITYPE sy-vline 
WA_GERO_CDIFIE_STR-ILENG sy-vline 
WA_GERO_CDIFIE_STR-OFFST sy-vline 
WA_GERO_CDIFIE_STR-DIGIT sy-vline 
WA_GERO_CDIFIE_STR-OUTLN sy-vline 
WA_GERO_CDIFIE_STR-DECIM sy-vline 
WA_GERO_CDIFIE_STR-DIMPR sy-vline 
WA_GERO_CDIFIE_STR-ATRFL sy-vline 
WA_GERO_CDIFIE_STR-REPIN sy-vline 
WA_GERO_CDIFIE_STR-PLAIN sy-vline 
WA_GERO_CDIFIE_STR-LITIN sy-vline 
WA_GERO_CDIFIE_STR-RCSIN sy-vline 
WA_GERO_CDIFIE_STR-RSLIN sy-vline 
WA_GERO_CDIFIE_STR-CHAIN sy-vline 
WA_GERO_CDIFIE_STR-AGGDI sy-vline 
WA_GERO_CDIFIE_STR-AGGTM sy-vline 
WA_GERO_CDIFIE_STR-AGGFI sy-vline 
WA_GERO_CDIFIE_STR-PRDEC sy-vline 
WA_GERO_CDIFIE_STR-PRSNT sy-vline 
WA_GERO_CDIFIE_STR-OPORD sy-vline 
WA_GERO_CDIFIE_STR-SBGRP sy-vline 
WA_GERO_CDIFIE_STR-CCNUM sy-vline 
WA_GERO_CDIFIE_STR-DCURR sy-vline 
WA_GERO_CDIFIE_STR-RFTAB sy-vline 
WA_GERO_CDIFIE_STR-RFFIE sy-vline 
WA_GERO_CDIFIE_STR-DSRFF sy-vline 
WA_GERO_CDIFIE_STR-CQMRK sy-vline 
WA_GERO_CDIFIE_STR-CUKY0 sy-vline 
WA_GERO_CDIFIE_STR-CQFIE sy-vline 
WA_GERO_CDIFIE_STR-UNIT0 sy-vline 
WA_GERO_CDIFIE_STR-CQDEC sy-vline 
WA_GERO_CDIFIE_STR-PARID sy-vline 
WA_GERO_CDIFIE_STR-CONVX sy-vline 
WA_GERO_CDIFIE_STR-MASK sy-vline 
WA_GERO_CDIFIE_STR-MASKL sy-vline 
WA_GERO_CDIFIE_STR-TFLAG sy-vline 
WA_GERO_CDIFIE_STR-DMAC sy-vline 
WA_GERO_CDIFIE_STR-TXT_S sy-vline 
WA_GERO_CDIFIE_STR-TXT_M sy-vline 
WA_GERO_CDIFIE_STR-TXT_L sy-vline 
WA_GERO_CDIFIE_STR-TXT_R sy-vline 
WA_GERO_CDIFIE_STR-MEMID sy-vline 
WA_GERO_CDIFIE_STR-CHNAM sy-vline 
WA_GERO_CDIFIE_STR-CHDAT sy-vline 
WA_GERO_CDIFIE_STR-CHTIM sy-vline      INTO ld_text SEPARATED BY SPACE.

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