ABAP Select data from SAP table /DSD/ME_CUSTOMER_HEADER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /DSD/ME_CUSTOMER_HEADER
*  INTO TABLE @DATA(IT_/DSD/ME_CUSTOMER_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_/DSD/ME_CUSTOMER_HEADER INDEX 1 INTO DATA(WA_/DSD/ME_CUSTOMER_HEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</DSD/ME_CUSTOMER_HEADER>-CLIENT = 1.
</DSD/ME_CUSTOMER_HEADER>-CUST_NO = 1.
</DSD/ME_CUSTOMER_HEADER>-REF_CPD = 1.
</DSD/ME_CUSTOMER_HEADER>-HH_CREATE = 1.
</DSD/ME_CUSTOMER_HEADER>-COUNTRY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/DSD/ME_CUSTOMER_HEADER-NAME, sy-vline,
  WA_/DSD/ME_CUSTOMER_HEADER-ADDRESS, sy-vline,
  WA_/DSD/ME_CUSTOMER_HEADER-STREET, sy-vline,
  WA_/DSD/ME_CUSTOMER_HEADER-CITY, sy-vline,
  WA_/DSD/ME_CUSTOMER_HEADER-DISTRICT, sy-vline,
  WA_/DSD/ME_CUSTOMER_HEADER-REGION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/DSD/ME_CUSTOMER_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_/DSD/ME_CUSTOMER_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_/DSD/ME_CUSTOMER_HEADER INTO WA_/DSD/ME_CUSTOMER_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_/DSD/ME_CUSTOMER_HEADER_STR, 
CLIENT TYPE STRING,
CUST_NO TYPE STRING,
REF_CPD TYPE STRING,
HH_CREATE TYPE STRING,
COUNTRY TYPE STRING,
NAME TYPE STRING,
ADDRESS TYPE STRING,
STREET TYPE STRING,
CITY TYPE STRING,
DISTRICT TYPE STRING,
REGION TYPE STRING,
PCODE TYPE STRING,
PHONE TYPE STRING,
SALES_ORG TYPE STRING,
DIST_CHANNEL TYPE STRING,
DIVISION TYPE STRING,
PRC_LIST TYPE STRING,
LANGUAGE TYPE STRING,
BILL_BLOCK TYPE STRING,
DELV_BLOCK TYPE STRING,
SALE_BLOCK TYPE STRING,
EMPTY_DEPOSIT TYPE STRING,
EMPTY_UPDATE TYPE STRING,
SOLD_TO_NO TYPE STRING,
BILL_TO_NO TYPE STRING,
SHIP_TO_NO TYPE STRING,
PAYER_NO TYPE STRING,
COLLECT_TYPE TYPE STRING,
PYMT_METHOD TYPE STRING,
INV_GEN TYPE STRING,
POD_INV TYPE STRING,
INV_MSTAT TYPE STRING,
PAY_CODE TYPE STRING,
PAY_TERMS TYPE STRING,
C_CTR_AREA TYPE STRING,
CRED_DATE TYPE STRING,
CRED_TIME TYPE STRING,
DAYS_ARREARS TYPE STRING,
DUE_ITEMS TYPE STRING,
CRED_LIMIT TYPE STRING,
CNTRY_BK TYPE STRING,
BK_KEY TYPE STRING,
BK_ACC TYPE STRING,
PY_C_TYPE TYPE STRING,
PY_C_NUM TYPE STRING,
PY_C_EXP TYPE STRING,
VATREG_NO TYPE STRING,
JURIS_CODE TYPE STRING,
TAX_CAT1 TYPE STRING,
TAX_CLASS1 TYPE STRING,
TAX_CAT2 TYPE STRING,
TAX_CLASS2 TYPE STRING,
TAX_CAT3 TYPE STRING,
TAX_CLASS3 TYPE STRING,
PRICE_GROUP TYPE STRING,
COMP_CODE TYPE STRING,
DELIV_COUNTRY TYPE STRING,
DEST_COUNTRY TYPE STRING,
LEGAL_NUM1 TYPE STRING,
LEGAL_NUM2 TYPE STRING,
CASH_PAYER TYPE STRING,
CASH_PAYER_AF TYPE STRING,
INVOICE_PAYER TYPE STRING,
PLANT TYPE STRING,
CUSTOMER_GROUP TYPE STRING,
EXTFLD1 TYPE STRING,
EXTFLD2 TYPE STRING,
EXTFLD3 TYPE STRING,
EXTFLD4 TYPE STRING,
EXTFLD5 TYPE STRING,
EXTFLD6 TYPE STRING,
EXTFLD7 TYPE STRING,
EXTFLD8 TYPE STRING,
EXTFLD9 TYPE STRING,
EXTFLD10 TYPE STRING,
ME_ACTION TYPE STRING,
NAME2 TYPE STRING,
NAME3 TYPE STRING,
NAME4 TYPE STRING,
CUST_GROUP_TEXT TYPE STRING,
CUSTOMER_GROUP1 TYPE STRING,
CUST_GROUP1_TEXT TYPE STRING,
STR_SUPPL1 TYPE STRING,
STR_SUPPL2 TYPE STRING,
CUST_NO_SA TYPE STRING,
LEGAL_NUM3 TYPE STRING,
NAT_PERS_IND TYPE STRING,
COUNTY_CODE TYPE STRING,
CITY_CODE TYPE STRING,
CUSTOMER_GROUP2 TYPE STRING,
CUSTOMER_GROUP3 TYPE STRING,
CUSTOMER_GROUP4 TYPE STRING,
CUSTOMER_GROUP5 TYPE STRING,
BARCODE_IDENTIFIER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/DSD/ME_CUSTOMER_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_/DSD/ME_CUSTOMER_HEADER_STR-CLIENT sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-CUST_NO sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-REF_CPD sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-HH_CREATE sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-COUNTRY sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-NAME sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-ADDRESS sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-STREET sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-CITY sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-DISTRICT sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-REGION sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-PCODE sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-PHONE sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-SALES_ORG sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-DIST_CHANNEL sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-DIVISION sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-PRC_LIST sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-LANGUAGE sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-BILL_BLOCK sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-DELV_BLOCK sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-SALE_BLOCK sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-EMPTY_DEPOSIT sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-EMPTY_UPDATE sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-SOLD_TO_NO sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-BILL_TO_NO sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-SHIP_TO_NO sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-PAYER_NO sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-COLLECT_TYPE sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-PYMT_METHOD sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-INV_GEN sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-POD_INV sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-INV_MSTAT sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-PAY_CODE sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-PAY_TERMS sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-C_CTR_AREA sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-CRED_DATE sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-CRED_TIME sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-DAYS_ARREARS sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-DUE_ITEMS sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-CRED_LIMIT sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-CNTRY_BK sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-BK_KEY sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-BK_ACC sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-PY_C_TYPE sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-PY_C_NUM sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-PY_C_EXP sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-VATREG_NO sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-JURIS_CODE sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-TAX_CAT1 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-TAX_CLASS1 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-TAX_CAT2 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-TAX_CLASS2 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-TAX_CAT3 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-TAX_CLASS3 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-PRICE_GROUP sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-COMP_CODE sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-DELIV_COUNTRY sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-DEST_COUNTRY sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-LEGAL_NUM1 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-LEGAL_NUM2 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-CASH_PAYER sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-CASH_PAYER_AF sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-INVOICE_PAYER sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-PLANT sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-CUSTOMER_GROUP sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-EXTFLD1 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-EXTFLD2 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-EXTFLD3 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-EXTFLD4 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-EXTFLD5 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-EXTFLD6 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-EXTFLD7 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-EXTFLD8 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-EXTFLD9 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-EXTFLD10 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-ME_ACTION sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-NAME2 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-NAME3 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-NAME4 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-CUST_GROUP_TEXT sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-CUSTOMER_GROUP1 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-CUST_GROUP1_TEXT sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-STR_SUPPL1 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-STR_SUPPL2 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-CUST_NO_SA sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-LEGAL_NUM3 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-NAT_PERS_IND sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-COUNTY_CODE sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-CITY_CODE sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-CUSTOMER_GROUP2 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-CUSTOMER_GROUP3 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-CUSTOMER_GROUP4 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-CUSTOMER_GROUP5 sy-vline 
WA_/DSD/ME_CUSTOMER_HEADER_STR-BARCODE_IDENTIFIER sy-vline      INTO ld_text SEPARATED BY SPACE.

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