ABAP Select data from SAP table ORDER_MASTER_TXT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ORDER_MASTER_TXT
*  INTO TABLE @DATA(IT_ORDER_MASTER_TXT2).
*--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_ORDER_MASTER_TXT INDEX 1 INTO DATA(WA_ORDER_MASTER_TXT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ORDER_MASTER_TXT>-ORDER_TYPE_TXT = 1.
<ORDER_MASTER_TXT>-CO_AREA_TXT = 1.
<ORDER_MASTER_TXT>-TAXJURCODE_TXT = 1.
<ORDER_MASTER_TXT>-BUS_AREA_TXT = 1.
<ORDER_MASTER_TXT>-COMP_CODE_TXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ORDER_MASTER_TXT-PLANT_TXT, sy-vline,
  WA_ORDER_MASTER_TXT-FUNC_AREA_TXT, sy-vline,
  WA_ORDER_MASTER_TXT-OBJECTCLASS_TXT, sy-vline,
  WA_ORDER_MASTER_TXT-PROFIT_CTR_TXT, sy-vline,
  WA_ORDER_MASTER_TXT-RESPCCTR_TXT, sy-vline,
  WA_ORDER_MASTER_TXT-REQUEST_CCTR_TXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ORDER_MASTER_TXT 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_ORDER_MASTER_TXT 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_ORDER_MASTER_TXT INTO WA_ORDER_MASTER_TXT.


*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_ORDER_MASTER_TXT_STR, 
ORDER_TYPE_TXT TYPE STRING,
CO_AREA_TXT TYPE STRING,
TAXJURCODE_TXT TYPE STRING,
BUS_AREA_TXT TYPE STRING,
COMP_CODE_TXT TYPE STRING,
PLANT_TXT TYPE STRING,
FUNC_AREA_TXT TYPE STRING,
OBJECTCLASS_TXT TYPE STRING,
PROFIT_CTR_TXT TYPE STRING,
RESPCCTR_TXT TYPE STRING,
REQUEST_CCTR_TXT TYPE STRING,
WBS_ELEMENT_TXT TYPE STRING,
REQUEST_COMP_CODE_TXT TYPE STRING,
REQUEST_ORDER_TXT TYPE STRING,
LOCATION_TXT TYPE STRING,
LOCATION_PLANT_TXT TYPE STRING,
S_ORD_ITEM_TXT TYPE STRING,
RES_ANAL_KEY_TXT TYPE STRING,
CSTG_SHEET_TXT TYPE STRING,
OVERHEAD_KEY_TXT TYPE STRING,
INTEREST_PROF_TXT TYPE STRING,
ORDER_STATUS_TXT TYPE STRING,
DISALLOWED_T_GRP_TXT TYPE STRING,
CURRENCY_TXT TYPE STRING,
CCTR_POSTED_TXT TYPE STRING,
ORDER_CATG_TXT TYPE STRING,
LOGSYSTEM_TXT TYPE STRING,
INVEST_PROFILE_TXT TYPE STRING,
SCALE_TXT TYPE STRING,
INV_REASON_TXT TYPE STRING,
ENVIR_INVEST_TXT TYPE STRING,
PROCESSING_GROUP_TXT TYPE STRING,
REACHED_STATUS_TXT TYPE STRING,
IN_CHARGE_USER_TXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ORDER_MASTER_TXT_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_ORDER_MASTER_TXT_STR-ORDER_TYPE_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-CO_AREA_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-TAXJURCODE_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-BUS_AREA_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-COMP_CODE_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-PLANT_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-FUNC_AREA_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-OBJECTCLASS_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-PROFIT_CTR_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-RESPCCTR_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-REQUEST_CCTR_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-WBS_ELEMENT_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-REQUEST_COMP_CODE_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-REQUEST_ORDER_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-LOCATION_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-LOCATION_PLANT_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-S_ORD_ITEM_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-RES_ANAL_KEY_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-CSTG_SHEET_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-OVERHEAD_KEY_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-INTEREST_PROF_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-ORDER_STATUS_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-DISALLOWED_T_GRP_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-CURRENCY_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-CCTR_POSTED_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-ORDER_CATG_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-LOGSYSTEM_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-INVEST_PROFILE_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-SCALE_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-INV_REASON_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-ENVIR_INVEST_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-PROCESSING_GROUP_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-REACHED_STATUS_TXT sy-vline 
WA_ORDER_MASTER_TXT_STR-IN_CHARGE_USER_TXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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