ABAP Select data from SAP table MMIV_SI_S_FI_HEADER_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MMIV_SI_S_FI_HEADER_DATA
*  INTO TABLE @DATA(IT_MMIV_SI_S_FI_HEADER_DATA2).
*--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_MMIV_SI_S_FI_HEADER_DATA INDEX 1 INTO DATA(WA_MMIV_SI_S_FI_HEADER_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MMIV_SI_S_FI_HEADER_DATA>-BUKRS = 1.
<MMIV_SI_S_FI_HEADER_DATA>-BLART = 1.
<MMIV_SI_S_FI_HEADER_DATA>-BLDAT = 1.
<MMIV_SI_S_FI_HEADER_DATA>-BUDAT = 1.
<MMIV_SI_S_FI_HEADER_DATA>-VATDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MMIV_SI_S_FI_HEADER_DATA-WWERT, sy-vline,
  WA_MMIV_SI_S_FI_HEADER_DATA-WAERS, sy-vline,
  WA_MMIV_SI_S_FI_HEADER_DATA-GJAHR, sy-vline,
  WA_MMIV_SI_S_FI_HEADER_DATA-KURSF, sy-vline,
  WA_MMIV_SI_S_FI_HEADER_DATA-HWAER, sy-vline,
  WA_MMIV_SI_S_FI_HEADER_DATA-BKTXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MMIV_SI_S_FI_HEADER_DATA 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_MMIV_SI_S_FI_HEADER_DATA 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_MMIV_SI_S_FI_HEADER_DATA INTO WA_MMIV_SI_S_FI_HEADER_DATA.


*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 GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_MMIV_SI_S_FI_HEADER_DATA-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMIV_SI_S_FI_HEADER_DATA-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURSF
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_MMIV_SI_S_FI_HEADER_DATA-KURSF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMIV_SI_S_FI_HEADER_DATA-KURSF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GLO_BP1_HD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MMIV_SI_S_FI_HEADER_DATA-GLO_BP1_HD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMIV_SI_S_FI_HEADER_DATA-GLO_BP1_HD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GLO_BP2_HD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MMIV_SI_S_FI_HEADER_DATA-GLO_BP2_HD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMIV_SI_S_FI_HEADER_DATA-GLO_BP2_HD.
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_MMIV_SI_S_FI_HEADER_DATA_STR, 
BUKRS TYPE STRING,
BLART TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
VATDATE TYPE STRING,
WWERT TYPE STRING,
WAERS TYPE STRING,
GJAHR TYPE STRING,
KURSF TYPE STRING,
HWAER TYPE STRING,
BKTXT TYPE STRING,
XBLNR TYPE STRING,
GLACCT_EDITLOKKT TYPE STRING,
REINDAT TYPE STRING,
MONAT TYPE STRING,
FULFILLDATE TYPE STRING,
GLO_REF1_HD TYPE STRING,
GLO_DAT1_HD TYPE STRING,
GLO_REF2_HD TYPE STRING,
GLO_DAT2_HD TYPE STRING,
GLO_REF3_HD TYPE STRING,
GLO_DAT3_HD TYPE STRING,
GLO_REF4_HD TYPE STRING,
GLO_DAT4_HD TYPE STRING,
GLO_REF5_HD TYPE STRING,
GLO_DAT5_HD TYPE STRING,
GLO_BP1_HD TYPE STRING,
GLO_BP2_HD TYPE STRING,
GLO_REF1_HD_LBL TYPE STRING,
GLO_DAT1_HD_LBL TYPE STRING,
GLO_REF2_HD_LBL TYPE STRING,
GLO_DAT2_HD_LBL TYPE STRING,
GLO_REF3_HD_LBL TYPE STRING,
GLO_DAT3_HD_LBL TYPE STRING,
GLO_REF4_HD_LBL TYPE STRING,
GLO_DAT4_HD_LBL TYPE STRING,
GLO_REF5_HD_LBL TYPE STRING,
GLO_DAT5_HD_LBL TYPE STRING,
GLO_BP1_HD_LBL TYPE STRING,
GLO_BP2_HD_LBL TYPE STRING,
UX_STATUS_FI_HEADER TYPE STRING,
UX_FC_BUKRS TYPE STRING,
UX_FC_BLART TYPE STRING,
UX_FC_BLDAT TYPE STRING,
UX_FC_BUDAT TYPE STRING,
UX_FC_WAERS TYPE STRING,
UX_FC_KURSF TYPE STRING,
UX_FC_BKTXT TYPE STRING,
UX_FC_VATDATE TYPE STRING,
UX_FC_XBLNR TYPE STRING,
UX_FC_REINDAT TYPE STRING,
UX_FC_GLO_REF1_HD TYPE STRING,
UX_FC_GLO_DAT1_HD TYPE STRING,
UX_FC_GLO_REF2_HD TYPE STRING,
UX_FC_GLO_DAT2_HD TYPE STRING,
UX_FC_GLO_REF3_HD TYPE STRING,
UX_FC_GLO_DAT3_HD TYPE STRING,
UX_FC_GLO_REF4_HD TYPE STRING,
UX_FC_GLO_DAT4_HD TYPE STRING,
UX_FC_GLO_REF5_HD TYPE STRING,
UX_FC_GLO_DAT5_HD TYPE STRING,
UX_FC_GLO_BP1_HD TYPE STRING,
UX_FC_GLO_BP2_HD TYPE STRING,
UX_FC_FULFILLDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MMIV_SI_S_FI_HEADER_DATA_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_MMIV_SI_S_FI_HEADER_DATA_STR-BUKRS sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-BLART sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-BLDAT sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-BUDAT sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-VATDATE sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-WWERT sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-WAERS sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GJAHR sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-KURSF sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-HWAER sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-BKTXT sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-XBLNR sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLACCT_EDITLOKKT sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-REINDAT sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-MONAT sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-FULFILLDATE sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_REF1_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_DAT1_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_REF2_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_DAT2_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_REF3_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_DAT3_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_REF4_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_DAT4_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_REF5_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_DAT5_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_BP1_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_BP2_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_REF1_HD_LBL sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_DAT1_HD_LBL sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_REF2_HD_LBL sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_DAT2_HD_LBL sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_REF3_HD_LBL sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_DAT3_HD_LBL sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_REF4_HD_LBL sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_DAT4_HD_LBL sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_REF5_HD_LBL sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_DAT5_HD_LBL sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_BP1_HD_LBL sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-GLO_BP2_HD_LBL sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_STATUS_FI_HEADER sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_BUKRS sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_BLART sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_BLDAT sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_BUDAT sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_WAERS sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_KURSF sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_BKTXT sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_VATDATE sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_XBLNR sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_REINDAT sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_GLO_REF1_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_GLO_DAT1_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_GLO_REF2_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_GLO_DAT2_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_GLO_REF3_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_GLO_DAT3_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_GLO_REF4_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_GLO_DAT4_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_GLO_REF5_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_GLO_DAT5_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_GLO_BP1_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_GLO_BP2_HD sy-vline 
WA_MMIV_SI_S_FI_HEADER_DATA_STR-UX_FC_FULFILLDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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