ABAP Select data from SAP table EIV_AISINO_EI_INVOICE_HEADER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EIV_AISINO_EI_INVOICE_HEADER
*  INTO TABLE @DATA(IT_EIV_AISINO_EI_INVOICE_HEADER2).
*--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_EIV_AISINO_EI_INVOICE_HEADER INDEX 1 INTO DATA(WA_EIV_AISINO_EI_INVOICE_HEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EIV_AISINO_EI_INVOICE_HEADER>-FPQQLSH = 1.
<EIV_AISINO_EI_INVOICE_HEADER>-DKBZ = 1.
<EIV_AISINO_EI_INVOICE_HEADER>-KPXM = 1.
<EIV_AISINO_EI_INVOICE_HEADER>-XMHS = 1.
<EIV_AISINO_EI_INVOICE_HEADER>-GHFMC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EIV_AISINO_EI_INVOICE_HEADER-GHF_NSRSBH, sy-vline,
  WA_EIV_AISINO_EI_INVOICE_HEADER-GHF_SF, sy-vline,
  WA_EIV_AISINO_EI_INVOICE_HEADER-GHF_DZ, sy-vline,
  WA_EIV_AISINO_EI_INVOICE_HEADER-GHF_GDDH, sy-vline,
  WA_EIV_AISINO_EI_INVOICE_HEADER-GHF_SJ, sy-vline,
  WA_EIV_AISINO_EI_INVOICE_HEADER-GHF_EMAIL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EIV_AISINO_EI_INVOICE_HEADER 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_EIV_AISINO_EI_INVOICE_HEADER 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_EIV_AISINO_EI_INVOICE_HEADER INTO WA_EIV_AISINO_EI_INVOICE_HEADER.


*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_EIV_AISINO_EI_INVOICE_HEADER_STR, 
FPQQLSH TYPE STRING,
DKBZ TYPE STRING,
KPXM TYPE STRING,
XMHS TYPE STRING,
GHFMC TYPE STRING,
GHF_NSRSBH TYPE STRING,
GHF_SF TYPE STRING,
GHF_DZ TYPE STRING,
GHF_GDDH TYPE STRING,
GHF_SJ TYPE STRING,
GHF_EMAIL TYPE STRING,
GHFQYLX TYPE STRING,
GHF_YHZH TYPE STRING,
HY_DM TYPE STRING,
HY_MC TYPE STRING,
KPRQ TYPE STRING,
KPLX TYPE STRING,
YFP_DM TYPE STRING,
YFP_HM TYPE STRING,
TSCHBZ TYPE STRING,
CZDM TYPE STRING,
QD_BZ TYPE STRING,
QDXMMC TYPE STRING,
CHYY TYPE STRING,
KPHJJE TYPE STRING,
HJBHSJE TYPE STRING,
HJSE TYPE STRING,
BZ TYPE STRING,
BYZD1 TYPE STRING,
BYZD2 TYPE STRING,
BYZD3 TYPE STRING,
BYZD4 TYPE STRING,
BYZD5 TYPE STRING,
FP_DM TYPE STRING,
FP_HM TYPE STRING,
FWM TYPE STRING,
EWM TYPE STRING,
PDF_FILE TYPE STRING,
PDF_URL TYPE STRING,
DSPTBM TYPE STRING,
NSRSBH TYPE STRING,
NSRMC TYPE STRING,
NSRDZDAH TYPE STRING,
SWJG_DM TYPE STRING,
PYDM TYPE STRING,
BMB_BBH TYPE STRING,
XHF_NSRSBH TYPE STRING,
XHFMC TYPE STRING,
XHF_DZ TYPE STRING,
XHF_DH TYPE STRING,
XHF_YHZH TYPE STRING,
KPY TYPE STRING,
SKY TYPE STRING,
FHR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EIV_AISINO_EI_INVOICE_HEADER_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_EIV_AISINO_EI_INVOICE_HEADER_STR-FPQQLSH sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-DKBZ sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-KPXM sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-XMHS sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-GHFMC sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-GHF_NSRSBH sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-GHF_SF sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-GHF_DZ sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-GHF_GDDH sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-GHF_SJ sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-GHF_EMAIL sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-GHFQYLX sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-GHF_YHZH sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-HY_DM sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-HY_MC sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-KPRQ sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-KPLX sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-YFP_DM sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-YFP_HM sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-TSCHBZ sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-CZDM sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-QD_BZ sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-QDXMMC sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-CHYY sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-KPHJJE sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-HJBHSJE sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-HJSE sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-BZ sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-BYZD1 sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-BYZD2 sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-BYZD3 sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-BYZD4 sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-BYZD5 sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-FP_DM sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-FP_HM sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-FWM sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-EWM sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-PDF_FILE sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-PDF_URL sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-DSPTBM sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-NSRSBH sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-NSRMC sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-NSRDZDAH sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-SWJG_DM sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-PYDM sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-BMB_BBH sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-XHF_NSRSBH sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-XHFMC sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-XHF_DZ sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-XHF_DH sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-XHF_YHZH sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-KPY sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-SKY sy-vline 
WA_EIV_AISINO_EI_INVOICE_HEADER_STR-FHR sy-vline      INTO ld_text SEPARATED BY SPACE.

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