ABAP Select data from SAP table EDOC_EC_CREATE_IV_400_RETURN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EDOC_EC_CREATE_IV_400_RETURN 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 EDOC_EC_CREATE_IV_400_RETURN. 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 EDOC_EC_CREATE_IV_400_RETURN 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_EDOC_EC_CREATE_IV_400_RETURN TYPE STANDARD TABLE OF EDOC_EC_CREATE_IV_400_RETURN,
      WA_EDOC_EC_CREATE_IV_400_RETURN TYPE EDOC_EC_CREATE_IV_400_RETURN,
      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: <EDOC_EC_CREATE_IV_400_RETURN> TYPE EDOC_EC_CREATE_IV_400_RETURN.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_EDOC_EC_CREATE_IV_400_RETURN.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM EDOC_EC_CREATE_IV_400_RETURN
  INTO TABLE IT_EDOC_EC_CREATE_IV_400_RETURN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EDOC_EC_CREATE_IV_400_RETURN
*  INTO TABLE @DATA(IT_EDOC_EC_CREATE_IV_400_RETURN2).
*--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_EDOC_EC_CREATE_IV_400_RETURN INDEX 1 INTO DATA(WA_EDOC_EC_CREATE_IV_400_RETURN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_EDOC_EC_CREATE_IV_400_RETURN ASSIGNING <EDOC_EC_CREATE_IV_400_RETURN>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EDOC_EC_CREATE_IV_400_RETURN>-ICMS_TOT = 1.
<EDOC_EC_CREATE_IV_400_RETURN>-V_BC = 1.
<EDOC_EC_CREATE_IV_400_RETURN>-V_ICMS = 1.
<EDOC_EC_CREATE_IV_400_RETURN>-V_ICMSDESON = 1.
<EDOC_EC_CREATE_IV_400_RETURN>-V_BCST = 1.

ENDLOOP.

LOOP AT IT_EDOC_EC_CREATE_IV_400_RETURN INTO WA_EDOC_EC_CREATE_IV_400_RETURN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EDOC_EC_CREATE_IV_400_RETURN-V_ST, sy-vline,
  WA_EDOC_EC_CREATE_IV_400_RETURN-V_PROD, sy-vline,
  WA_EDOC_EC_CREATE_IV_400_RETURN-V_FRETE, sy-vline,
  WA_EDOC_EC_CREATE_IV_400_RETURN-V_SEG, sy-vline,
  WA_EDOC_EC_CREATE_IV_400_RETURN-V_DESC, sy-vline,
  WA_EDOC_EC_CREATE_IV_400_RETURN-V_II, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EDOC_EC_CREATE_IV_400_RETURN 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_EDOC_EC_CREATE_IV_400_RETURN 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_EDOC_EC_CREATE_IV_400_RETURN INTO WA_EDOC_EC_CREATE_IV_400_RETURN.


*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 DOC_NUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EDOC_EC_CREATE_IV_400_RETURN-DOC_NUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EDOC_EC_CREATE_IV_400_RETURN-DOC_NUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field FISCAL_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_EDOC_EC_CREATE_IV_400_RETURN-FISCAL_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EDOC_EC_CREATE_IV_400_RETURN-FISCAL_YEAR.
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_EDOC_EC_CREATE_IV_400_RETURN_STR, 
ICMS_TOT TYPE STRING,
V_BC TYPE STRING,
V_ICMS TYPE STRING,
V_ICMSDESON TYPE STRING,
V_BCST TYPE STRING,
V_ST TYPE STRING,
V_PROD TYPE STRING,
V_FRETE TYPE STRING,
V_SEG TYPE STRING,
V_DESC TYPE STRING,
V_II TYPE STRING,
V_IPI TYPE STRING,
V_PIS TYPE STRING,
V_COFINS TYPE STRING,
V_OUTRO TYPE STRING,
V_NF TYPE STRING,
V_TOT_TRIB TYPE STRING,
V_FCPUFDEST TYPE STRING,
V_ICMSUFDEST TYPE STRING,
V_ICMSUFREMET TYPE STRING,
ISSQN_TOT TYPE STRING,
V_SERV TYPE STRING,
V_BC TYPE STRING,
V_ISS TYPE STRING,
V_PIS TYPE STRING,
V_COFINS TYPE STRING,
D_COMPET TYPE STRING,
V_DEDUCAO TYPE STRING,
V_OUTRO TYPE STRING,
V_DESC_INCOND TYPE STRING,
V_DESC_COND TYPE STRING,
V_ISSRET TYPE STRING,
C_REG_TRIB TYPE STRING,
RETTRIB_TOT TYPE STRING,
V_RET_PIS TYPE STRING,
V_RET_COFINS TYPE STRING,
V_RET_CSLL TYPE STRING,
V_BCIRRF TYPE STRING,
V_IRRF TYPE STRING,
V_BCRET_PREV TYPE STRING,
V_RET_PREV TYPE STRING,
DOC_NUM TYPE STRING,
FISCAL_YEAR TYPE STRING,
NFE_STATUS TYPE STRING,
NFE_ITEM TYPE STRING,
NFE_TAX TYPE STRING,
BAPIRET2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EDOC_EC_CREATE_IV_400_RETURN_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_EDOC_EC_CREATE_IV_400_RETURN_STR-ICMS_TOT sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_BC sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_ICMS sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_ICMSDESON sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_BCST sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_ST sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_PROD sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_FRETE sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_SEG sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_DESC sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_II sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_IPI sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_PIS sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_COFINS sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_OUTRO sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_NF sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_TOT_TRIB sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_FCPUFDEST sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_ICMSUFDEST sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_ICMSUFREMET sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-ISSQN_TOT sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_SERV sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_BC sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_ISS sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_PIS sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_COFINS sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-D_COMPET sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_DEDUCAO sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_OUTRO sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_DESC_INCOND sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_DESC_COND sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_ISSRET sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-C_REG_TRIB sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-RETTRIB_TOT sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_RET_PIS sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_RET_COFINS sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_RET_CSLL sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_BCIRRF sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_IRRF sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_BCRET_PREV sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-V_RET_PREV sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-DOC_NUM sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-FISCAL_YEAR sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-NFE_STATUS sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-NFE_ITEM sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-NFE_TAX sy-vline 
WA_EDOC_EC_CREATE_IV_400_RETURN_STR-BAPIRET2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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