ABAP Select data from SAP table MSPCD_S_MASTER_DATA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MSPCD_S_MASTER_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 MSPCD_S_MASTER_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 MSPCD_S_MASTER_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_MSPCD_S_MASTER_DATA TYPE STANDARD TABLE OF MSPCD_S_MASTER_DATA,
      WA_MSPCD_S_MASTER_DATA TYPE MSPCD_S_MASTER_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: <MSPCD_S_MASTER_DATA> TYPE MSPCD_S_MASTER_DATA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MSPCD_S_MASTER_DATA
*  INTO TABLE @DATA(IT_MSPCD_S_MASTER_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_MSPCD_S_MASTER_DATA INDEX 1 INTO DATA(WA_MSPCD_S_MASTER_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MSPCD_S_MASTER_DATA>-IS_INTEGRATION_DATA = 1.
<MSPCD_S_MASTER_DATA>-LOGSYS_R3 = 1.
<MSPCD_S_MASTER_DATA>-LOGSYS_APO = 1.
<MSPCD_S_MASTER_DATA>-BUSINESS_SYSTEMS_GROUP_APO = 1.
<MSPCD_S_MASTER_DATA>-BUSINESS_SYSTEMS_GROUP_DESC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MSPCD_S_MASTER_DATA-APO_SYSTEM_TYPE, sy-vline,
  WA_MSPCD_S_MASTER_DATA-APO_SYSTEM_RELEASE, sy-vline,
  WA_MSPCD_S_MASTER_DATA-R3_SYSTEM_RELEASE, sy-vline,
  WA_MSPCD_S_MASTER_DATA-CIF_INTEGRATION_MODEL, sy-vline,
  WA_MSPCD_S_MASTER_DATA-CIF_APPLICATION, sy-vline,
  WA_MSPCD_S_MASTER_DATA-IT_CHARACTERISTICS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MSPCD_S_MASTER_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_MSPCD_S_MASTER_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_MSPCD_S_MASTER_DATA INTO WA_MSPCD_S_MASTER_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 ALPHA, internal->external for field LOGSYS_R3
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MSPCD_S_MASTER_DATA-LOGSYS_R3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MSPCD_S_MASTER_DATA-LOGSYS_R3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYS_APO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MSPCD_S_MASTER_DATA-LOGSYS_APO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MSPCD_S_MASTER_DATA-LOGSYS_APO.
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_MSPCD_S_MASTER_DATA_STR, 
IS_INTEGRATION_DATA TYPE STRING,
LOGSYS_R3 TYPE STRING,
LOGSYS_APO TYPE STRING,
BUSINESS_SYSTEMS_GROUP_APO TYPE STRING,
BUSINESS_SYSTEMS_GROUP_DESC TYPE STRING,
APO_SYSTEM_TYPE TYPE STRING,
APO_SYSTEM_RELEASE TYPE STRING,
R3_SYSTEM_RELEASE TYPE STRING,
CIF_INTEGRATION_MODEL TYPE STRING,
CIF_APPLICATION TYPE STRING,
IT_CHARACTERISTICS TYPE STRING,
IT_PLANTS TYPE STRING,
IT_MOBJ_GROUPS TYPE STRING,
IT_CHECK_TYPES TYPE STRING,
IT_TOLERANCE_PROFILES TYPE STRING,
IT_BREAKS TYPE STRING,
IT_SHIFTS TYPE STRING,
IT_SHIFT_FACTORS TYPE STRING,
IT_SHIFT_SEQUENCES TYPE STRING,
IT_WORK_CENTER_CONV_RULE TYPE STRING,
IT_WORK_CENTERS TYPE STRING,
IT_TASK_LISTS TYPE STRING,
IT_MAINT_PROFILES TYPE STRING,
IT_FLEETS TYPE STRING,
IV_CHARACTERISTICS_COUNT TYPE STRING,
IV_PLANTS_COUNT TYPE STRING,
IV_MOBJ_GRPS_COUNT TYPE STRING,
IV_TOLERANCE_PROFILES_COUNT TYPE STRING,
IV_CHECK_TYPES_COUNT TYPE STRING,
IV_SHIFTS_COUNT TYPE STRING,
IV_BREAKS_COUNT TYPE STRING,
IV_SHIFT_SEQUENCES_COUNT TYPE STRING,
IV_SHIFT_FACTORS_COUNT TYPE STRING,
IV_WORK_CENTERS_COUNT TYPE STRING,
IV_WORK_CENTER_CONV_COUNT TYPE STRING,
IV_MAINT_PROFILES_COUNT TYPE STRING,
IV_TASK_LISTS_COUNT TYPE STRING,
IV_FLEETS_COUNT TYPE STRING,
IV_IPPE_SAREA_NODE_TYPE TYPE STRING,
IV_IPPE_RES_NODE_TYPE TYPE STRING,
IV_IPPE_SLOT_TL_NTYPE TYPE STRING,
IV_IPPE_SLOT_ACT_NTYPE TYPE STRING,
IV_IPPE_SLOT_SAREA_ACT_NTYPE TYPE STRING,
IV_IPPE_CHECK_TL_NTYPE TYPE STRING,
IV_IPPE_CHECK_ACT_NTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MSPCD_S_MASTER_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_MSPCD_S_MASTER_DATA_STR-IS_INTEGRATION_DATA sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-LOGSYS_R3 sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-LOGSYS_APO sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-BUSINESS_SYSTEMS_GROUP_APO sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-BUSINESS_SYSTEMS_GROUP_DESC sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-APO_SYSTEM_TYPE sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-APO_SYSTEM_RELEASE sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-R3_SYSTEM_RELEASE sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-CIF_INTEGRATION_MODEL sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-CIF_APPLICATION sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IT_CHARACTERISTICS sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IT_PLANTS sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IT_MOBJ_GROUPS sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IT_CHECK_TYPES sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IT_TOLERANCE_PROFILES sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IT_BREAKS sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IT_SHIFTS sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IT_SHIFT_FACTORS sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IT_SHIFT_SEQUENCES sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IT_WORK_CENTER_CONV_RULE sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IT_WORK_CENTERS sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IT_TASK_LISTS sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IT_MAINT_PROFILES sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IT_FLEETS sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IV_CHARACTERISTICS_COUNT sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IV_PLANTS_COUNT sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IV_MOBJ_GRPS_COUNT sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IV_TOLERANCE_PROFILES_COUNT sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IV_CHECK_TYPES_COUNT sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IV_SHIFTS_COUNT sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IV_BREAKS_COUNT sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IV_SHIFT_SEQUENCES_COUNT sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IV_SHIFT_FACTORS_COUNT sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IV_WORK_CENTERS_COUNT sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IV_WORK_CENTER_CONV_COUNT sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IV_MAINT_PROFILES_COUNT sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IV_TASK_LISTS_COUNT sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IV_FLEETS_COUNT sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IV_IPPE_SAREA_NODE_TYPE sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IV_IPPE_RES_NODE_TYPE sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IV_IPPE_SLOT_TL_NTYPE sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IV_IPPE_SLOT_ACT_NTYPE sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IV_IPPE_SLOT_SAREA_ACT_NTYPE sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IV_IPPE_CHECK_TL_NTYPE sy-vline 
WA_MSPCD_S_MASTER_DATA_STR-IV_IPPE_CHECK_ACT_NTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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