ABAP Select data from SAP table MARD into internal table



Get Example source ABAP code based on a different SAP table
  

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MARD
*  INTO TABLE @DATA(IT_MARD2).
*--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_MARD INDEX 1 INTO DATA(WA_MARD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MARD ASSIGNING <MARD>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<MARD>-MANDT = 1.
<MARD>-MATNR = 1.
<MARD>-WERKS = 1.
<MARD>-LGORT = 1.
<MARD>-PSTAT = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MARD-LVORM, sy-vline,
WA_MARD-LFGJA, sy-vline,
WA_MARD-LFMON, sy-vline,
WA_MARD-SPERR, sy-vline,
WA_MARD-LABST, sy-vline,
WA_MARD-UMLME, sy-vline.
ENDLOOP. *Add any further fields from structure WA_MARD 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_MARD 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_MARD INTO WA_MARD. *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_MARD-MATNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_MARD-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field LFGJA CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT' EXPORTING input = WA_MARD-LFGJA IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_MARD-LFGJA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTL CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_MARD-PRCTL IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_MARD-PRCTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field MDJIN CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT' EXPORTING input = WA_MARD-MDJIN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_MARD-MDJIN.
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_MARD_STR,
MANDT TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
PSTAT TYPE STRING,
LVORM TYPE STRING,
LFGJA TYPE STRING,
LFMON TYPE STRING,
SPERR TYPE STRING,
LABST TYPE STRING,
UMLME TYPE STRING,
INSME TYPE STRING,
EINME TYPE STRING,
SPEME TYPE STRING,
RETME TYPE STRING,
VMLAB TYPE STRING,
VMUML TYPE STRING,
VMINS TYPE STRING,
VMEIN TYPE STRING,
VMSPE TYPE STRING,
VMRET TYPE STRING,
KZILL TYPE STRING,
KZILQ TYPE STRING,
KZILE TYPE STRING,
KZILS TYPE STRING,
KZVLL TYPE STRING,
KZVLQ TYPE STRING,
KZVLE TYPE STRING,
KZVLS TYPE STRING,
DISKZ TYPE STRING,
LSOBS TYPE STRING,
LMINB TYPE STRING,
LBSTF TYPE STRING,
HERKL TYPE STRING,
EXPPG TYPE STRING,
EXVER TYPE STRING,
LGPBE TYPE STRING,
KLABS TYPE STRING,
KINSM TYPE STRING,
KEINM TYPE STRING,
KSPEM TYPE STRING,
DLINL TYPE STRING,
PRCTL TYPE STRING,
ERSDA TYPE STRING,
VKLAB TYPE STRING,
VKUML TYPE STRING,
LWMKB TYPE STRING,
BSKRF TYPE STRING,
MDRUE TYPE STRING,
MDJIN TYPE STRING,END OF T_EKKO_STR. DATA: WA_MARD_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_MARD_STR-MANDT sy-vline
WA_MARD_STR-MATNR sy-vline
WA_MARD_STR-WERKS sy-vline
WA_MARD_STR-LGORT sy-vline
WA_MARD_STR-PSTAT sy-vline
WA_MARD_STR-LVORM sy-vline
WA_MARD_STR-LFGJA sy-vline
WA_MARD_STR-LFMON sy-vline
WA_MARD_STR-SPERR sy-vline
WA_MARD_STR-LABST sy-vline
WA_MARD_STR-UMLME sy-vline
WA_MARD_STR-INSME sy-vline
WA_MARD_STR-EINME sy-vline
WA_MARD_STR-SPEME sy-vline
WA_MARD_STR-RETME sy-vline
WA_MARD_STR-VMLAB sy-vline
WA_MARD_STR-VMUML sy-vline
WA_MARD_STR-VMINS sy-vline
WA_MARD_STR-VMEIN sy-vline
WA_MARD_STR-VMSPE sy-vline
WA_MARD_STR-VMRET sy-vline
WA_MARD_STR-KZILL sy-vline
WA_MARD_STR-KZILQ sy-vline
WA_MARD_STR-KZILE sy-vline
WA_MARD_STR-KZILS sy-vline
WA_MARD_STR-KZVLL sy-vline
WA_MARD_STR-KZVLQ sy-vline
WA_MARD_STR-KZVLE sy-vline
WA_MARD_STR-KZVLS sy-vline
WA_MARD_STR-DISKZ sy-vline
WA_MARD_STR-LSOBS sy-vline
WA_MARD_STR-LMINB sy-vline
WA_MARD_STR-LBSTF sy-vline
WA_MARD_STR-HERKL sy-vline
WA_MARD_STR-EXPPG sy-vline
WA_MARD_STR-EXVER sy-vline
WA_MARD_STR-LGPBE sy-vline
WA_MARD_STR-KLABS sy-vline
WA_MARD_STR-KINSM sy-vline
WA_MARD_STR-KEINM sy-vline
WA_MARD_STR-KSPEM sy-vline
WA_MARD_STR-DLINL sy-vline
WA_MARD_STR-PRCTL sy-vline
WA_MARD_STR-ERSDA sy-vline
WA_MARD_STR-VKLAB sy-vline
WA_MARD_STR-VKUML sy-vline
WA_MARD_STR-LWMKB sy-vline
WA_MARD_STR-BSKRF sy-vline
WA_MARD_STR-MDRUE sy-vline
WA_MARD_STR-MDJIN sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.