ABAP Select data from SAP table MDMA into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MDMA 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 MDMA. 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 MDMA 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_MDMA TYPE STANDARD TABLE OF MDMA,
      WA_MDMA TYPE MDMA,
      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: <MDMA> TYPE MDMA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MDMA
*  INTO TABLE @DATA(IT_MDMA2).
*--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_MDMA INDEX 1 INTO DATA(WA_MDMA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MDMA>-MANDT = 1.
<MDMA>-MATNR = 1.
<MDMA>-BERID = 1.
<MDMA>-WERKS = 1.
<MDMA>-DISPR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MDMA-DISMM, sy-vline,
  WA_MDMA-DISPO, sy-vline,
  WA_MDMA-DISGR, sy-vline,
  WA_MDMA-MINBE, sy-vline,
  WA_MDMA-LFRHY, sy-vline,
  WA_MDMA-FXHOR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MDMA 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_MDMA 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_MDMA INTO WA_MDMA.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MDMA-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDMA-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field VRBMT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MDMA-VRBMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDMA-VRBMT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTRG, internal->external for field SCM_GRPRT
CALL FUNCTION 'CONVERSION_EXIT_TSTRG_OUTPUT'
  EXPORTING
    input =                      WA_MDMA-SCM_GRPRT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDMA-SCM_GRPRT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTRG, internal->external for field SCM_GIPRT
CALL FUNCTION 'CONVERSION_EXIT_TSTRG_OUTPUT'
  EXPORTING
    input =                      WA_MDMA-SCM_GIPRT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDMA-SCM_GIPRT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field SCM_HUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MDMA-SCM_HUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDMA-SCM_HUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field SCM_HUNIT_OUT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MDMA-SCM_HUNIT_OUT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDMA-SCM_HUNIT_OUT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field SCM_LSUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MDMA-SCM_LSUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDMA-SCM_LSUOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTRG, internal->external for field SCM_REORD_DUR
CALL FUNCTION 'CONVERSION_EXIT_TSTRG_OUTPUT'
  EXPORTING
    input =                      WA_MDMA-SCM_REORD_DUR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDMA-SCM_REORD_DUR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTRG, internal->external for field SCM_TARGET_DUR
CALL FUNCTION 'CONVERSION_EXIT_TSTRG_OUTPUT'
  EXPORTING
    input =                      WA_MDMA-SCM_TARGET_DUR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDMA-SCM_TARGET_DUR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTRG, internal->external for field SCM_THRUPUT_TIME
CALL FUNCTION 'CONVERSION_EXIT_TSTRG_OUTPUT'
  EXPORTING
    input =                      WA_MDMA-SCM_THRUPUT_TIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDMA-SCM_THRUPUT_TIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field SCM_IUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MDMA-SCM_IUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDMA-SCM_IUNIT.
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_MDMA_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
BERID TYPE STRING,
WERKS TYPE STRING,
DISPR TYPE STRING,
DISMM TYPE STRING,
DISPO TYPE STRING,
DISGR TYPE STRING,
MINBE TYPE STRING,
LFRHY TYPE STRING,
FXHOR TYPE STRING,
DISLS TYPE STRING,
RDPRF TYPE STRING,
BSTRF TYPE STRING,
BSTMI TYPE STRING,
BSTMA TYPE STRING,
MABST TYPE STRING,
TAKZT TYPE STRING,
AUSSS TYPE STRING,
SOBSL TYPE STRING,
LGPRO TYPE STRING,
LGFSB TYPE STRING,
MRPPP TYPE STRING,
EISBE TYPE STRING,
RWPRO TYPE STRING,
SHZET TYPE STRING,
BSTFE TYPE STRING,
LOSFX TYPE STRING,
LAGPR TYPE STRING,
LGRAD TYPE STRING,
PROPR TYPE STRING,
VRBMT TYPE STRING,
VRBDB TYPE STRING,
VRBDT TYPE STRING,
VRBFK TYPE STRING,
LOEKZ TYPE STRING,
SHPRO TYPE STRING,
AHDIS TYPE STRING,
AUTRU TYPE STRING,
PSTAT TYPE STRING,
KZKFK TYPE STRING,
SHFLG TYPE STRING,
APOKZ TYPE STRING,
PLIFZ TYPE STRING,
PLIFZX TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
AEZEIT TYPE STRING,
SFTY_STK_METH TYPE STRING,
SCM_MATLOCID_GUID16 TYPE STRING,
SCM_MATLOCID_GUID22 TYPE STRING,
SCM_GRPRT TYPE STRING,
SCM_GIPRT TYPE STRING,
SCM_RRP_TYPE TYPE STRING,
SCM_HEUR_ID TYPE STRING,
SCM_PACKAGE_ID TYPE STRING,
SCM_CONHAP TYPE STRING,
SCM_HUNIT TYPE STRING,
SCM_CONHAP_OUT TYPE STRING,
SCM_HUNIT_OUT TYPE STRING,
SCM_RRP_SEL_GROUP TYPE STRING,
SCM_LSUOM TYPE STRING,
SCM_REORD_DUR TYPE STRING,
SCM_TARGET_DUR TYPE STRING,
SCM_TSTRID TYPE STRING,
SCM_THRUPUT_TIME TYPE STRING,
SCM_TPOP TYPE STRING,
SCM_SAFTY_V TYPE STRING,
SCM_PPSAFTYSTK TYPE STRING,
SCM_PPSAFTYSTK_V TYPE STRING,
SCM_REPSAFTY TYPE STRING,
SCM_REPSAFTY_V TYPE STRING,
SCM_REORD_V TYPE STRING,
SCM_MAXSTOCK_V TYPE STRING,
SCM_SCOST_PRCNT TYPE STRING,
SCM_PROC_COST TYPE STRING,
SCM_NDCOSTWE TYPE STRING,
SCM_NDCOSTWA TYPE STRING,
SCM_CONINP TYPE STRING,
SCM_IUNIT TYPE STRING,
MAXDOS_PEN TYPE STRING,
MAXDOS_FLG TYPE STRING,
SAFTYSTOCK_METHOD TYPE STRING,
TARGET_STOCK_LEVEL_METH TYPE STRING,
AUTO_DET_SFTYSTK_METH TYPE STRING,
USE_PERIOD_FACTOR TYPE STRING,
PERIOD_FACTOR_VALUE TYPE STRING,
PERIOD_FACTOR_TDS TYPE STRING,
SDM_VERSION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MDMA_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_MDMA_STR-MANDT sy-vline 
WA_MDMA_STR-MATNR sy-vline 
WA_MDMA_STR-BERID sy-vline 
WA_MDMA_STR-WERKS sy-vline 
WA_MDMA_STR-DISPR sy-vline 
WA_MDMA_STR-DISMM sy-vline 
WA_MDMA_STR-DISPO sy-vline 
WA_MDMA_STR-DISGR sy-vline 
WA_MDMA_STR-MINBE sy-vline 
WA_MDMA_STR-LFRHY sy-vline 
WA_MDMA_STR-FXHOR sy-vline 
WA_MDMA_STR-DISLS sy-vline 
WA_MDMA_STR-RDPRF sy-vline 
WA_MDMA_STR-BSTRF sy-vline 
WA_MDMA_STR-BSTMI sy-vline 
WA_MDMA_STR-BSTMA sy-vline 
WA_MDMA_STR-MABST sy-vline 
WA_MDMA_STR-TAKZT sy-vline 
WA_MDMA_STR-AUSSS sy-vline 
WA_MDMA_STR-SOBSL sy-vline 
WA_MDMA_STR-LGPRO sy-vline 
WA_MDMA_STR-LGFSB sy-vline 
WA_MDMA_STR-MRPPP sy-vline 
WA_MDMA_STR-EISBE sy-vline 
WA_MDMA_STR-RWPRO sy-vline 
WA_MDMA_STR-SHZET sy-vline 
WA_MDMA_STR-BSTFE sy-vline 
WA_MDMA_STR-LOSFX sy-vline 
WA_MDMA_STR-LAGPR sy-vline 
WA_MDMA_STR-LGRAD sy-vline 
WA_MDMA_STR-PROPR sy-vline 
WA_MDMA_STR-VRBMT sy-vline 
WA_MDMA_STR-VRBDB sy-vline 
WA_MDMA_STR-VRBDT sy-vline 
WA_MDMA_STR-VRBFK sy-vline 
WA_MDMA_STR-LOEKZ sy-vline 
WA_MDMA_STR-SHPRO sy-vline 
WA_MDMA_STR-AHDIS sy-vline 
WA_MDMA_STR-AUTRU sy-vline 
WA_MDMA_STR-PSTAT sy-vline 
WA_MDMA_STR-KZKFK sy-vline 
WA_MDMA_STR-SHFLG sy-vline 
WA_MDMA_STR-APOKZ sy-vline 
WA_MDMA_STR-PLIFZ sy-vline 
WA_MDMA_STR-PLIFZX sy-vline 
WA_MDMA_STR-AENAM sy-vline 
WA_MDMA_STR-AEDAT sy-vline 
WA_MDMA_STR-AEZEIT sy-vline 
WA_MDMA_STR-SFTY_STK_METH sy-vline 
WA_MDMA_STR-SCM_MATLOCID_GUID16 sy-vline 
WA_MDMA_STR-SCM_MATLOCID_GUID22 sy-vline 
WA_MDMA_STR-SCM_GRPRT sy-vline 
WA_MDMA_STR-SCM_GIPRT sy-vline 
WA_MDMA_STR-SCM_RRP_TYPE sy-vline 
WA_MDMA_STR-SCM_HEUR_ID sy-vline 
WA_MDMA_STR-SCM_PACKAGE_ID sy-vline 
WA_MDMA_STR-SCM_CONHAP sy-vline 
WA_MDMA_STR-SCM_HUNIT sy-vline 
WA_MDMA_STR-SCM_CONHAP_OUT sy-vline 
WA_MDMA_STR-SCM_HUNIT_OUT sy-vline 
WA_MDMA_STR-SCM_RRP_SEL_GROUP sy-vline 
WA_MDMA_STR-SCM_LSUOM sy-vline 
WA_MDMA_STR-SCM_REORD_DUR sy-vline 
WA_MDMA_STR-SCM_TARGET_DUR sy-vline 
WA_MDMA_STR-SCM_TSTRID sy-vline 
WA_MDMA_STR-SCM_THRUPUT_TIME sy-vline 
WA_MDMA_STR-SCM_TPOP sy-vline 
WA_MDMA_STR-SCM_SAFTY_V sy-vline 
WA_MDMA_STR-SCM_PPSAFTYSTK sy-vline 
WA_MDMA_STR-SCM_PPSAFTYSTK_V sy-vline 
WA_MDMA_STR-SCM_REPSAFTY sy-vline 
WA_MDMA_STR-SCM_REPSAFTY_V sy-vline 
WA_MDMA_STR-SCM_REORD_V sy-vline 
WA_MDMA_STR-SCM_MAXSTOCK_V sy-vline 
WA_MDMA_STR-SCM_SCOST_PRCNT sy-vline 
WA_MDMA_STR-SCM_PROC_COST sy-vline 
WA_MDMA_STR-SCM_NDCOSTWE sy-vline 
WA_MDMA_STR-SCM_NDCOSTWA sy-vline 
WA_MDMA_STR-SCM_CONINP sy-vline 
WA_MDMA_STR-SCM_IUNIT sy-vline 
WA_MDMA_STR-MAXDOS_PEN sy-vline 
WA_MDMA_STR-MAXDOS_FLG sy-vline 
WA_MDMA_STR-SAFTYSTOCK_METHOD sy-vline 
WA_MDMA_STR-TARGET_STOCK_LEVEL_METH sy-vline 
WA_MDMA_STR-AUTO_DET_SFTYSTK_METH sy-vline 
WA_MDMA_STR-USE_PERIOD_FACTOR sy-vline 
WA_MDMA_STR-PERIOD_FACTOR_VALUE sy-vline 
WA_MDMA_STR-PERIOD_FACTOR_TDS sy-vline 
WA_MDMA_STR-SDM_VERSION sy-vline      INTO ld_text SEPARATED BY SPACE.

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