ABAP Select data from SAP table MMRP_PARM_TYPE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MMRP_PARM_TYPE
*  INTO TABLE @DATA(IT_MMRP_PARM_TYPE2).
*--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_MMRP_PARM_TYPE INDEX 1 INTO DATA(WA_MMRP_PARM_TYPE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MMRP_PARM_TYPE>-ONE_PV_MAT = 1.
<MMRP_PARM_TYPE>-M_HANDLE = 1.
<MMRP_PARM_TYPE>-TOKEN_M_HANDLE = 1.
<MMRP_PARM_TYPE>-STAT_M_HANDLE = 1.
<MMRP_PARM_TYPE>-OTHER_M_HANDLE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MMRP_PARM_TYPE-MANDT, sy-vline,
  WA_MMRP_PARM_TYPE-VERSIONID, sy-vline,
  WA_MMRP_PARM_TYPE-MATID, sy-vline,
  WA_MMRP_PARM_TYPE-LOCID, sy-vline,
  WA_MMRP_PARM_TYPE-TRPID, sy-vline,
  WA_MMRP_PARM_TYPE-SUB_MATRIX_HOR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MMRP_PARM_TYPE 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_MMRP_PARM_TYPE 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_MMRP_PARM_TYPE INTO WA_MMRP_PARM_TYPE.


*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_MMRP_PARM_TYPE_STR, 
ONE_PV_MAT TYPE STRING,
M_HANDLE TYPE STRING,
TOKEN_M_HANDLE TYPE STRING,
STAT_M_HANDLE TYPE STRING,
OTHER_M_HANDLE TYPE STRING,
MANDT TYPE STRING,
VERSIONID TYPE STRING,
MATID TYPE STRING,
LOCID TYPE STRING,
TRPID TYPE STRING,
SUB_MATRIX_HOR TYPE STRING,
SUB_MATRIX_VER TYPE STRING,
MATRIX_TYPE TYPE STRING,
DIRECTION TYPE STRING,
DELETE_FLAG TYPE STRING,
RPM_SESSION TYPE STRING,
CREATEDATE TYPE STRING,
CREATEUSER TYPE STRING,
CHANGEDATE TYPE STRING,
CHANGEUSER TYPE STRING,
CMPGUID TYPE STRING,
CMP_OTYPE TYPE STRING,
ACTGUID TYPE STRING,
FLOGUID TYPE STRING,
HAS_TIME_SERIES TYPE STRING,
TEXT TYPE STRING,
T_MAT TYPE STRING,
M_HANDLE TYPE STRING,
TOKEN_M_HANDLE TYPE STRING,
STAT_M_HANDLE TYPE STRING,
OTHER_M_HANDLE TYPE STRING,
MANDT TYPE STRING,
VERSIONID TYPE STRING,
MATID TYPE STRING,
LOCID TYPE STRING,
TRPID TYPE STRING,
SUB_MATRIX_HOR TYPE STRING,
SUB_MATRIX_VER TYPE STRING,
MATRIX_TYPE TYPE STRING,
DIRECTION TYPE STRING,
DELETE_FLAG TYPE STRING,
RPM_SESSION TYPE STRING,
CREATEDATE TYPE STRING,
CREATEUSER TYPE STRING,
CHANGEDATE TYPE STRING,
CHANGEUSER TYPE STRING,
CMPGUID TYPE STRING,
CMP_OTYPE TYPE STRING,
ACTGUID TYPE STRING,
FLOGUID TYPE STRING,
HAS_TIME_SERIES TYPE STRING,
TEXT TYPE STRING,
ONE_ACT_MAT TYPE STRING,
M_HANDLE TYPE STRING,
TOKEN_M_HANDLE TYPE STRING,
STAT_M_HANDLE TYPE STRING,
OTHER_M_HANDLE TYPE STRING,
MANDT TYPE STRING,
VERSIONID TYPE STRING,
MATID TYPE STRING,
LOCID TYPE STRING,
TRPID TYPE STRING,
SUB_MATRIX_HOR TYPE STRING,
SUB_MATRIX_VER TYPE STRING,
MATRIX_TYPE TYPE STRING,
DIRECTION TYPE STRING,
DELETE_FLAG TYPE STRING,
RPM_SESSION TYPE STRING,
CREATEDATE TYPE STRING,
CREATEUSER TYPE STRING,
CHANGEDATE TYPE STRING,
CHANGEUSER TYPE STRING,
CMPGUID TYPE STRING,
CMP_OTYPE TYPE STRING,
ACTGUID TYPE STRING,
FLOGUID TYPE STRING,
HAS_TIME_SERIES TYPE STRING,
TEXT TYPE STRING,
CHECK_PROPCODE TYPE STRING,
CHECK_HIGHLANDER TYPE STRING,
CHECK_MANDATORY TYPE STRING,
USE_KNOBJ_BUFFER TYPE STRING,
PROGRESS TYPE STRING,
LC_INSTANCE TYPE STRING,
DO_COMMIT TYPE STRING,
INIT_CUOBJS TYPE STRING,
INIT_TOKENS TYPE STRING,
DATA_SOURCE TYPE STRING,
CR_ACT_MATRIX TYPE STRING,
IGNORE_COLOR_ERRORS TYPE STRING,
NUM_PARALLEL TYPE STRING,
DATE_CUTTER TYPE STRING,
USE_TIME_LINES TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MMRP_PARM_TYPE_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_MMRP_PARM_TYPE_STR-ONE_PV_MAT sy-vline 
WA_MMRP_PARM_TYPE_STR-M_HANDLE sy-vline 
WA_MMRP_PARM_TYPE_STR-TOKEN_M_HANDLE sy-vline 
WA_MMRP_PARM_TYPE_STR-STAT_M_HANDLE sy-vline 
WA_MMRP_PARM_TYPE_STR-OTHER_M_HANDLE sy-vline 
WA_MMRP_PARM_TYPE_STR-MANDT sy-vline 
WA_MMRP_PARM_TYPE_STR-VERSIONID sy-vline 
WA_MMRP_PARM_TYPE_STR-MATID sy-vline 
WA_MMRP_PARM_TYPE_STR-LOCID sy-vline 
WA_MMRP_PARM_TYPE_STR-TRPID sy-vline 
WA_MMRP_PARM_TYPE_STR-SUB_MATRIX_HOR sy-vline 
WA_MMRP_PARM_TYPE_STR-SUB_MATRIX_VER sy-vline 
WA_MMRP_PARM_TYPE_STR-MATRIX_TYPE sy-vline 
WA_MMRP_PARM_TYPE_STR-DIRECTION sy-vline 
WA_MMRP_PARM_TYPE_STR-DELETE_FLAG sy-vline 
WA_MMRP_PARM_TYPE_STR-RPM_SESSION sy-vline 
WA_MMRP_PARM_TYPE_STR-CREATEDATE sy-vline 
WA_MMRP_PARM_TYPE_STR-CREATEUSER sy-vline 
WA_MMRP_PARM_TYPE_STR-CHANGEDATE sy-vline 
WA_MMRP_PARM_TYPE_STR-CHANGEUSER sy-vline 
WA_MMRP_PARM_TYPE_STR-CMPGUID sy-vline 
WA_MMRP_PARM_TYPE_STR-CMP_OTYPE sy-vline 
WA_MMRP_PARM_TYPE_STR-ACTGUID sy-vline 
WA_MMRP_PARM_TYPE_STR-FLOGUID sy-vline 
WA_MMRP_PARM_TYPE_STR-HAS_TIME_SERIES sy-vline 
WA_MMRP_PARM_TYPE_STR-TEXT sy-vline 
WA_MMRP_PARM_TYPE_STR-T_MAT sy-vline 
WA_MMRP_PARM_TYPE_STR-M_HANDLE sy-vline 
WA_MMRP_PARM_TYPE_STR-TOKEN_M_HANDLE sy-vline 
WA_MMRP_PARM_TYPE_STR-STAT_M_HANDLE sy-vline 
WA_MMRP_PARM_TYPE_STR-OTHER_M_HANDLE sy-vline 
WA_MMRP_PARM_TYPE_STR-MANDT sy-vline 
WA_MMRP_PARM_TYPE_STR-VERSIONID sy-vline 
WA_MMRP_PARM_TYPE_STR-MATID sy-vline 
WA_MMRP_PARM_TYPE_STR-LOCID sy-vline 
WA_MMRP_PARM_TYPE_STR-TRPID sy-vline 
WA_MMRP_PARM_TYPE_STR-SUB_MATRIX_HOR sy-vline 
WA_MMRP_PARM_TYPE_STR-SUB_MATRIX_VER sy-vline 
WA_MMRP_PARM_TYPE_STR-MATRIX_TYPE sy-vline 
WA_MMRP_PARM_TYPE_STR-DIRECTION sy-vline 
WA_MMRP_PARM_TYPE_STR-DELETE_FLAG sy-vline 
WA_MMRP_PARM_TYPE_STR-RPM_SESSION sy-vline 
WA_MMRP_PARM_TYPE_STR-CREATEDATE sy-vline 
WA_MMRP_PARM_TYPE_STR-CREATEUSER sy-vline 
WA_MMRP_PARM_TYPE_STR-CHANGEDATE sy-vline 
WA_MMRP_PARM_TYPE_STR-CHANGEUSER sy-vline 
WA_MMRP_PARM_TYPE_STR-CMPGUID sy-vline 
WA_MMRP_PARM_TYPE_STR-CMP_OTYPE sy-vline 
WA_MMRP_PARM_TYPE_STR-ACTGUID sy-vline 
WA_MMRP_PARM_TYPE_STR-FLOGUID sy-vline 
WA_MMRP_PARM_TYPE_STR-HAS_TIME_SERIES sy-vline 
WA_MMRP_PARM_TYPE_STR-TEXT sy-vline 
WA_MMRP_PARM_TYPE_STR-ONE_ACT_MAT sy-vline 
WA_MMRP_PARM_TYPE_STR-M_HANDLE sy-vline 
WA_MMRP_PARM_TYPE_STR-TOKEN_M_HANDLE sy-vline 
WA_MMRP_PARM_TYPE_STR-STAT_M_HANDLE sy-vline 
WA_MMRP_PARM_TYPE_STR-OTHER_M_HANDLE sy-vline 
WA_MMRP_PARM_TYPE_STR-MANDT sy-vline 
WA_MMRP_PARM_TYPE_STR-VERSIONID sy-vline 
WA_MMRP_PARM_TYPE_STR-MATID sy-vline 
WA_MMRP_PARM_TYPE_STR-LOCID sy-vline 
WA_MMRP_PARM_TYPE_STR-TRPID sy-vline 
WA_MMRP_PARM_TYPE_STR-SUB_MATRIX_HOR sy-vline 
WA_MMRP_PARM_TYPE_STR-SUB_MATRIX_VER sy-vline 
WA_MMRP_PARM_TYPE_STR-MATRIX_TYPE sy-vline 
WA_MMRP_PARM_TYPE_STR-DIRECTION sy-vline 
WA_MMRP_PARM_TYPE_STR-DELETE_FLAG sy-vline 
WA_MMRP_PARM_TYPE_STR-RPM_SESSION sy-vline 
WA_MMRP_PARM_TYPE_STR-CREATEDATE sy-vline 
WA_MMRP_PARM_TYPE_STR-CREATEUSER sy-vline 
WA_MMRP_PARM_TYPE_STR-CHANGEDATE sy-vline 
WA_MMRP_PARM_TYPE_STR-CHANGEUSER sy-vline 
WA_MMRP_PARM_TYPE_STR-CMPGUID sy-vline 
WA_MMRP_PARM_TYPE_STR-CMP_OTYPE sy-vline 
WA_MMRP_PARM_TYPE_STR-ACTGUID sy-vline 
WA_MMRP_PARM_TYPE_STR-FLOGUID sy-vline 
WA_MMRP_PARM_TYPE_STR-HAS_TIME_SERIES sy-vline 
WA_MMRP_PARM_TYPE_STR-TEXT sy-vline 
WA_MMRP_PARM_TYPE_STR-CHECK_PROPCODE sy-vline 
WA_MMRP_PARM_TYPE_STR-CHECK_HIGHLANDER sy-vline 
WA_MMRP_PARM_TYPE_STR-CHECK_MANDATORY sy-vline 
WA_MMRP_PARM_TYPE_STR-USE_KNOBJ_BUFFER sy-vline 
WA_MMRP_PARM_TYPE_STR-PROGRESS sy-vline 
WA_MMRP_PARM_TYPE_STR-LC_INSTANCE sy-vline 
WA_MMRP_PARM_TYPE_STR-DO_COMMIT sy-vline 
WA_MMRP_PARM_TYPE_STR-INIT_CUOBJS sy-vline 
WA_MMRP_PARM_TYPE_STR-INIT_TOKENS sy-vline 
WA_MMRP_PARM_TYPE_STR-DATA_SOURCE sy-vline 
WA_MMRP_PARM_TYPE_STR-CR_ACT_MATRIX sy-vline 
WA_MMRP_PARM_TYPE_STR-IGNORE_COLOR_ERRORS sy-vline 
WA_MMRP_PARM_TYPE_STR-NUM_PARALLEL sy-vline 
WA_MMRP_PARM_TYPE_STR-DATE_CUTTER sy-vline 
WA_MMRP_PARM_TYPE_STR-USE_TIME_LINES sy-vline      INTO ld_text SEPARATED BY SPACE.

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