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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /MVA/AMDCPOLPR
*  INTO TABLE @DATA(IT_/MVA/AMDCPOLPR2).
*--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/AMDCPOLPR INDEX 1 INTO DATA(WA_/MVA/AMDCPOLPR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</MVA/AMDCPOLPR>-CLIENT = 1.
</MVA/AMDCPOLPR>-DCC_GUID = 1.
</MVA/AMDCPOLPR>-DC_GUID = 1.
</MVA/AMDCPOLPR>-BO_ID = 1.
</MVA/AMDCPOLPR>-POLICY_ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/MVA/AMDCPOLPR-PPDPAC_ID, sy-vline,
  WA_/MVA/AMDCPOLPR-POLICYPRODUCT_ID, sy-vline,
  WA_/MVA/AMDCPOLPR-UPD_CD, sy-vline,
  WA_/MVA/AMDCPOLPR-CUSTOMER_PM_CI, sy-vline,
  WA_/MVA/AMDCPOLPR-/MVA/NUMWMEN_AM, sy-vline,
  WA_/MVA/AMDCPOLPR-/MVA/NUMEMPL_AM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/MVA/AMDCPOLPR 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/AMDCPOLPR 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/AMDCPOLPR INTO WA_/MVA/AMDCPOLPR.


*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_/MVA/AMDCPOLPR_STR, 
CLIENT TYPE STRING,
DCC_GUID TYPE STRING,
DC_GUID TYPE STRING,
BO_ID TYPE STRING,
POLICY_ID TYPE STRING,
PPDPAC_ID TYPE STRING,
POLICYPRODUCT_ID TYPE STRING,
UPD_CD TYPE STRING,
CUSTOMER_PM_CI TYPE STRING,
/MVA/NUMWMEN_AM TYPE STRING,
/MVA/NUMEMPL_AM TYPE STRING,
/MVA/BUSTYPE_CD TYPE STRING,
/MVA/START_FG TYPE STRING,
/MVA/NCMDPTYP_CD TYPE STRING,
/MVA/POLPR_OID_X TYPE STRING,
CUSTOMER_PM_CI_X TYPE STRING,
/MVA/NUMWME_AM_X TYPE STRING,
/MVA/NUMEMP_AM_X TYPE STRING,
/MVA/BUSTYP_CD_X TYPE STRING,
/MVA/START_FG_X TYPE STRING,
/MVA/NCMDPT_CD_X TYPE STRING,
/MVA/NCMDPT_TT_X TYPE STRING,
MPBSTYP_TT_X TYPE STRING,
CUSTOMER_TM_CI_X TYPE STRING,
POL_TMPL_ID TYPE STRING,
POLPRPAC_TMPL_ID TYPE STRING,
POLPR_TMPL_ID TYPE STRING,
COVPAC_TMPL_ID TYPE STRING,
COV_TMPL_ID TYPE STRING,
COVCPCO_TMPL_ID TYPE STRING,
SUBJCTPM_TMPL_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/MVA/AMDCPOLPR_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/AMDCPOLPR_STR-CLIENT sy-vline 
WA_/MVA/AMDCPOLPR_STR-DCC_GUID sy-vline 
WA_/MVA/AMDCPOLPR_STR-DC_GUID sy-vline 
WA_/MVA/AMDCPOLPR_STR-BO_ID sy-vline 
WA_/MVA/AMDCPOLPR_STR-POLICY_ID sy-vline 
WA_/MVA/AMDCPOLPR_STR-PPDPAC_ID sy-vline 
WA_/MVA/AMDCPOLPR_STR-POLICYPRODUCT_ID sy-vline 
WA_/MVA/AMDCPOLPR_STR-UPD_CD sy-vline 
WA_/MVA/AMDCPOLPR_STR-CUSTOMER_PM_CI sy-vline 
WA_/MVA/AMDCPOLPR_STR-/MVA/NUMWMEN_AM sy-vline 
WA_/MVA/AMDCPOLPR_STR-/MVA/NUMEMPL_AM sy-vline 
WA_/MVA/AMDCPOLPR_STR-/MVA/BUSTYPE_CD sy-vline 
WA_/MVA/AMDCPOLPR_STR-/MVA/START_FG sy-vline 
WA_/MVA/AMDCPOLPR_STR-/MVA/NCMDPTYP_CD sy-vline 
WA_/MVA/AMDCPOLPR_STR-/MVA/POLPR_OID_X sy-vline 
WA_/MVA/AMDCPOLPR_STR-CUSTOMER_PM_CI_X sy-vline 
WA_/MVA/AMDCPOLPR_STR-/MVA/NUMWME_AM_X sy-vline 
WA_/MVA/AMDCPOLPR_STR-/MVA/NUMEMP_AM_X sy-vline 
WA_/MVA/AMDCPOLPR_STR-/MVA/BUSTYP_CD_X sy-vline 
WA_/MVA/AMDCPOLPR_STR-/MVA/START_FG_X sy-vline 
WA_/MVA/AMDCPOLPR_STR-/MVA/NCMDPT_CD_X sy-vline 
WA_/MVA/AMDCPOLPR_STR-/MVA/NCMDPT_TT_X sy-vline 
WA_/MVA/AMDCPOLPR_STR-MPBSTYP_TT_X sy-vline 
WA_/MVA/AMDCPOLPR_STR-CUSTOMER_TM_CI_X sy-vline 
WA_/MVA/AMDCPOLPR_STR-POL_TMPL_ID sy-vline 
WA_/MVA/AMDCPOLPR_STR-POLPRPAC_TMPL_ID sy-vline 
WA_/MVA/AMDCPOLPR_STR-POLPR_TMPL_ID sy-vline 
WA_/MVA/AMDCPOLPR_STR-COVPAC_TMPL_ID sy-vline 
WA_/MVA/AMDCPOLPR_STR-COV_TMPL_ID sy-vline 
WA_/MVA/AMDCPOLPR_STR-COVCPCO_TMPL_ID sy-vline 
WA_/MVA/AMDCPOLPR_STR-SUBJCTPM_TMPL_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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