ABAP Select data from SAP table /MVA/AMB_BMLOAD_OLC_MP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /MVA/AMB_BMLOAD_OLC_MP 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 /MVA/AMB_BMLOAD_OLC_MP. 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 /MVA/AMB_BMLOAD_OLC_MP 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_/MVA/AMB_BMLOAD_OLC_MP TYPE STANDARD TABLE OF /MVA/AMB_BMLOAD_OLC_MP,
      WA_/MVA/AMB_BMLOAD_OLC_MP TYPE /MVA/AMB_BMLOAD_OLC_MP,
      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: </MVA/AMB_BMLOAD_OLC_MP> TYPE /MVA/AMB_BMLOAD_OLC_MP.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /MVA/AMB_BMLOAD_OLC_MP
  INTO TABLE IT_/MVA/AMB_BMLOAD_OLC_MP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /MVA/AMB_BMLOAD_OLC_MP
*  INTO TABLE @DATA(IT_/MVA/AMB_BMLOAD_OLC_MP2).
*--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_/MVA/AMB_BMLOAD_OLC_MP INDEX 1 INTO DATA(WA_/MVA/AMB_BMLOAD_OLC_MP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/MVA/AMB_BMLOAD_OLC_MP ASSIGNING </MVA/AMB_BMLOAD_OLC_MP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</MVA/AMB_BMLOAD_OLC_MP>-BM_ID = 1.
</MVA/AMB_BMLOAD_OLC_MP>-EFFECTIVITY_DT = 1.
</MVA/AMB_BMLOAD_OLC_MP>-ACCESS_MODE = 1.
</MVA/AMB_BMLOAD_OLC_MP>-JOURNALNO_ID = 1.
</MVA/AMB_BMLOAD_OLC_MP>-LINKED_BO_ID = 1.

ENDLOOP.

LOOP AT IT_/MVA/AMB_BMLOAD_OLC_MP INTO WA_/MVA/AMB_BMLOAD_OLC_MP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/MVA/AMB_BMLOAD_OLC_MP-APPLNR_TT, sy-vline,
  WA_/MVA/AMB_BMLOAD_OLC_MP-ES_BMDATA, sy-vline,
  WA_/MVA/AMB_BMLOAD_OLC_MP-/MVA/AMCBBMDATA_OID, sy-vline,
  WA_/MVA/AMB_BMLOAD_OLC_MP-MOD_STATE, sy-vline,
  WA_/MVA/AMB_BMLOAD_OLC_MP-CLIENT, sy-vline,
  WA_/MVA/AMB_BMLOAD_OLC_MP-BM_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/MVA/AMB_BMLOAD_OLC_MP 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_/MVA/AMB_BMLOAD_OLC_MP 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_/MVA/AMB_BMLOAD_OLC_MP INTO WA_/MVA/AMB_BMLOAD_OLC_MP.


*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 APPLNR_TT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/MVA/AMB_BMLOAD_OLC_MP-APPLNR_TT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MVA/AMB_BMLOAD_OLC_MP-APPLNR_TT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit J7ADR, internal->external for field ADDRESSNUMBER_ID
CALL FUNCTION 'CONVERSION_EXIT_J7ADR_OUTPUT'
  EXPORTING
    input =                      WA_/MVA/AMB_BMLOAD_OLC_MP-ADDRESSNUMBER_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MVA/AMB_BMLOAD_OLC_MP-ADDRESSNUMBER_ID.
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_/MVA/AMB_BMLOAD_OLC_MP_STR, 
BM_ID TYPE STRING,
EFFECTIVITY_DT TYPE STRING,
ACCESS_MODE TYPE STRING,
JOURNALNO_ID TYPE STRING,
LINKED_BO_ID TYPE STRING,
APPLNR_TT TYPE STRING,
ES_BMDATA TYPE STRING,
/MVA/AMCBBMDATA_OID TYPE STRING,
MOD_STATE TYPE STRING,
CLIENT TYPE STRING,
BM_ID TYPE STRING,
JOURNALNO_ID TYPE STRING,
EFFECTIVITY_DT TYPE STRING,
INSURANCE_TP TYPE STRING,
BP_ID TYPE STRING,
ADDRESSNUMBER_ID TYPE STRING,
FRC_ID TYPE STRING,
PAR5ISSUED_FG TYPE STRING,
PAR5RECEIVED_FG TYPE STRING,
FREE_FG TYPE STRING,
BEGIN_DT TYPE STRING,
COMPANYKEY_ID TYPE STRING,
LOCK_FG TYPE STRING,
JOURNALENDNO_ID TYPE STRING,
CUSTOMER_PM_CI TYPE STRING,
COMPANYKEY_TT TYPE STRING,
CURRENT_BREAK_DAYS_AM TYPE STRING,
CURRENT_DT TYPE STRING,
FRC_TT TYPE STRING,
FREE_SINCE_DT TYPE STRING,
INSURTP_TT TYPE STRING,
MALUSREQ_FG TYPE STRING,
OWNINSCOMP_ID TYPE STRING,
OWNOFFICE_ID TYPE STRING,
PARTNERNAME_TT TYPE STRING,
RESUBMISSION_FG TYPE STRING,
TECHSTATE_ID TYPE STRING,
TECHSTATE_TT TYPE STRING,
TFREE_FG TYPE STRING,
EN_CODE TYPE STRING,
COVCPCO_KEY TYPE STRING,
BO_ID TYPE STRING,
POLICY_ID TYPE STRING,
PPDPAC_ID TYPE STRING,
POLICYPRODUCT_ID TYPE STRING,
COVPAC_ID TYPE STRING,
COVERAGE_ID TYPE STRING,
COVCPCO_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/MVA/AMB_BMLOAD_OLC_MP_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_/MVA/AMB_BMLOAD_OLC_MP_STR-BM_ID sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-EFFECTIVITY_DT sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-ACCESS_MODE sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-JOURNALNO_ID sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-LINKED_BO_ID sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-APPLNR_TT sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-ES_BMDATA sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-/MVA/AMCBBMDATA_OID sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-MOD_STATE sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-CLIENT sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-BM_ID sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-JOURNALNO_ID sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-EFFECTIVITY_DT sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-INSURANCE_TP sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-BP_ID sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-ADDRESSNUMBER_ID sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-FRC_ID sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-PAR5ISSUED_FG sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-PAR5RECEIVED_FG sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-FREE_FG sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-BEGIN_DT sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-COMPANYKEY_ID sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-LOCK_FG sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-JOURNALENDNO_ID sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-CUSTOMER_PM_CI sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-COMPANYKEY_TT sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-CURRENT_BREAK_DAYS_AM sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-CURRENT_DT sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-FRC_TT sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-FREE_SINCE_DT sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-INSURTP_TT sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-MALUSREQ_FG sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-OWNINSCOMP_ID sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-OWNOFFICE_ID sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-PARTNERNAME_TT sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-RESUBMISSION_FG sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-TECHSTATE_ID sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-TECHSTATE_TT sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-TFREE_FG sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-EN_CODE sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-COVCPCO_KEY sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-BO_ID sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-POLICY_ID sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-PPDPAC_ID sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-POLICYPRODUCT_ID sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-COVPAC_ID sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-COVERAGE_ID sy-vline 
WA_/MVA/AMB_BMLOAD_OLC_MP_STR-COVCPCO_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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