ABAP Select data from SAP table MB_MDBS 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 MB_MDBS 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 MB_MDBS. 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 MB_MDBS 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_MB_MDBS TYPE STANDARD TABLE OF MB_MDBS,
      WA_MB_MDBS TYPE MB_MDBS,
      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: <MB_MDBS> TYPE MB_MDBS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MB_MDBS
*  INTO TABLE @DATA(IT_MB_MDBS2).
*--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_MB_MDBS INDEX 1 INTO DATA(WA_MB_MDBS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MB_MDBS ASSIGNING <MB_MDBS>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<MB_MDBS>-MANDT = 1.
<MB_MDBS>-EBELN = 1.
<MB_MDBS>-EBELP = 1.
<MB_MDBS>-ETENR = 1.
<MB_MDBS>-MATNR = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MB_MDBS-WERKS, sy-vline,
WA_MB_MDBS-LGORT, sy-vline,
WA_MB_MDBS-BSTYP, sy-vline,
WA_MB_MDBS-LOEKZ, sy-vline,
WA_MB_MDBS-ELIKZ, sy-vline,
WA_MB_MDBS-MEINS, sy-vline.
ENDLOOP. *Add any further fields from structure WA_MB_MDBS 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_MB_MDBS 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_MB_MDBS INTO WA_MB_MDBS. *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 EBELN CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_MB_MDBS-EBELN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_MB_MDBS-EBELN.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit NUMCV, internal->external for field REVLV CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT' EXPORTING input = WA_MB_MDBS-REVLV IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_MB_MDBS-REVLV.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field EMLIF CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_MB_MDBS-EMLIF IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_MB_MDBS-EMLIF.
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_MB_MDBS_STR,
MANDT TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
ETENR TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
BSTYP TYPE STRING,
LOEKZ TYPE STRING,
ELIKZ TYPE STRING,
MEINS TYPE STRING,
UMREZ TYPE STRING,
UMREN TYPE STRING,
WEBAZ TYPE STRING,
PSTYP TYPE STRING,
KNTTP TYPE STRING,
SOBKZ TYPE STRING,
KZVBR TYPE STRING,
ETFZ1 TYPE STRING,
ETFZ2 TYPE STRING,
BSTAE TYPE STRING,
ARSNR TYPE STRING,
ARSPS TYPE STRING,
ETDRK TYPE STRING,
EINDT TYPE STRING,
MENGE TYPE STRING,
WEMNG TYPE STRING,
DABMG TYPE STRING,
WAMNG TYPE STRING,
GLMNG TYPE STRING,
QUNUM TYPE STRING,
QUPOS TYPE STRING,
RSNUM TYPE STRING,
ESTKZ TYPE STRING,
BEDAT TYPE STRING,
FIXKZ TYPE STRING,
SERNR TYPE STRING,
AMENG TYPE STRING,
REVLV TYPE STRING,
BWTAR TYPE STRING,
WEPOS TYPE STRING,
CHARG TYPE STRING,
AKTNR TYPE STRING,
RETPO TYPE STRING,
STATU TYPE STRING,
EMLIF TYPE STRING,
LBLKZ TYPE STRING,
EREKZ TYPE STRING,
KZBWS TYPE STRING,
EGLKZ TYPE STRING,
KZFIX TYPE STRING,
INSMK TYPE STRING,
STAPO TYPE STRING,
NETWR TYPE STRING,
BSTMG TYPE STRING,
BERID TYPE STRING,END OF T_EKKO_STR. DATA: WA_MB_MDBS_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_MB_MDBS_STR-MANDT sy-vline
WA_MB_MDBS_STR-EBELN sy-vline
WA_MB_MDBS_STR-EBELP sy-vline
WA_MB_MDBS_STR-ETENR sy-vline
WA_MB_MDBS_STR-MATNR sy-vline
WA_MB_MDBS_STR-WERKS sy-vline
WA_MB_MDBS_STR-LGORT sy-vline
WA_MB_MDBS_STR-BSTYP sy-vline
WA_MB_MDBS_STR-LOEKZ sy-vline
WA_MB_MDBS_STR-ELIKZ sy-vline
WA_MB_MDBS_STR-MEINS sy-vline
WA_MB_MDBS_STR-UMREZ sy-vline
WA_MB_MDBS_STR-UMREN sy-vline
WA_MB_MDBS_STR-WEBAZ sy-vline
WA_MB_MDBS_STR-PSTYP sy-vline
WA_MB_MDBS_STR-KNTTP sy-vline
WA_MB_MDBS_STR-SOBKZ sy-vline
WA_MB_MDBS_STR-KZVBR sy-vline
WA_MB_MDBS_STR-ETFZ1 sy-vline
WA_MB_MDBS_STR-ETFZ2 sy-vline
WA_MB_MDBS_STR-BSTAE sy-vline
WA_MB_MDBS_STR-ARSNR sy-vline
WA_MB_MDBS_STR-ARSPS sy-vline
WA_MB_MDBS_STR-ETDRK sy-vline
WA_MB_MDBS_STR-EINDT sy-vline
WA_MB_MDBS_STR-MENGE sy-vline
WA_MB_MDBS_STR-WEMNG sy-vline
WA_MB_MDBS_STR-DABMG sy-vline
WA_MB_MDBS_STR-WAMNG sy-vline
WA_MB_MDBS_STR-GLMNG sy-vline
WA_MB_MDBS_STR-QUNUM sy-vline
WA_MB_MDBS_STR-QUPOS sy-vline
WA_MB_MDBS_STR-RSNUM sy-vline
WA_MB_MDBS_STR-ESTKZ sy-vline
WA_MB_MDBS_STR-BEDAT sy-vline
WA_MB_MDBS_STR-FIXKZ sy-vline
WA_MB_MDBS_STR-SERNR sy-vline
WA_MB_MDBS_STR-AMENG sy-vline
WA_MB_MDBS_STR-REVLV sy-vline
WA_MB_MDBS_STR-BWTAR sy-vline
WA_MB_MDBS_STR-WEPOS sy-vline
WA_MB_MDBS_STR-CHARG sy-vline
WA_MB_MDBS_STR-AKTNR sy-vline
WA_MB_MDBS_STR-RETPO sy-vline
WA_MB_MDBS_STR-STATU sy-vline
WA_MB_MDBS_STR-EMLIF sy-vline
WA_MB_MDBS_STR-LBLKZ sy-vline
WA_MB_MDBS_STR-EREKZ sy-vline
WA_MB_MDBS_STR-KZBWS sy-vline
WA_MB_MDBS_STR-EGLKZ sy-vline
WA_MB_MDBS_STR-KZFIX sy-vline
WA_MB_MDBS_STR-INSMK sy-vline
WA_MB_MDBS_STR-STAPO sy-vline
WA_MB_MDBS_STR-NETWR sy-vline
WA_MB_MDBS_STR-BSTMG sy-vline
WA_MB_MDBS_STR-BERID sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.