ABAP Select data from SAP table PEG_MDRS 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 PEG_MDRS 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 PEG_MDRS. 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 PEG_MDRS 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_PEG_MDRS TYPE STANDARD TABLE OF PEG_MDRS,
WA_PEG_MDRS TYPE PEG_MDRS,
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: <PEG_MDRS> TYPE PEG_MDRS.
*Process all fields in table header/work area as string values
PERFORM process_as_string_field_values CHANGING wa_PEG_MDRS.
SELECT *
*restrict ABAP select to first 10 rows
UP TO 10 ROWS
FROM PEG_MDRS
INTO TABLE IT_PEG_MDRS.
*Select data and declare internal table using in-line method @DATA
*SELECT *
* FROM PEG_MDRS
* INTO TABLE @DATA(IT_PEG_MDRS2).
*--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_PEG_MDRS INDEX 1 INTO DATA(WA_PEG_MDRS2).
*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PEG_MDRS ASSIGNING <PEG_MDRS>.
*To update a field value using a field symbol simply change the value via the field symbol pointer<PEG_MDRS>-RSNUM = 1.
<PEG_MDRS>-RSPOS = 1.
<PEG_MDRS>-RSART = 1.
<PEG_MDRS>-MATNR = 1.
<PEG_MDRS>-WERKS = 1.
ENDLOOP. LOOP AT IT_PEG_MDRS INTO WA_PEG_MDRS. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_PEG_MDRS-BDTER, sy-vline,
WA_PEG_MDRS-BDMNG, sy-vline,
WA_PEG_MDRS-MEINS, sy-vline,
WA_PEG_MDRS-ENMNG, sy-vline,
WA_PEG_MDRS-BAUGR, sy-vline,
WA_PEG_MDRS-PSPEL, sy-vline.
ENDLOOP. *Add any further fields from structure WA_PEG_MDRS 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_PEG_MDRS 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_PEG_MDRS INTO WA_PEG_MDRS. *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_PEG_MDRS-MATNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_PEG_MDRS-MATNR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit CUNIT, internal->external for field MEINS CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_PEG_MDRS-MEINS IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_PEG_MDRS-MEINS.
WRITE:/ 'New Value:', ld_input.
*Conversion exit MATN1, internal->external for field BAUGR CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT' EXPORTING input = WA_PEG_MDRS-BAUGR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_PEG_MDRS-BAUGR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ABPSP, internal->external for field PSPEL CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT' EXPORTING input = WA_PEG_MDRS-PSPEL IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_PEG_MDRS-PSPEL.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field PLNUM CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_PEG_MDRS-PLNUM IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_PEG_MDRS-PLNUM.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field BANFN CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_PEG_MDRS-BANFN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_PEG_MDRS-BANFN.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field EBELN CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_PEG_MDRS-EBELN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_PEG_MDRS-EBELN.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field AUFNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_PEG_MDRS-AUFNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_PEG_MDRS-AUFNR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit CUNIT, internal->external for field ERFME CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_PEG_MDRS-ERFME IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_PEG_MDRS-ERFME.
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_PEG_MDRS_STR,
RSNUM TYPE STRING,
RSPOS TYPE STRING,
RSART TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
BDTER TYPE STRING,
BDMNG TYPE STRING,
MEINS TYPE STRING,
ENMNG TYPE STRING,
BAUGR TYPE STRING,
PSPEL TYPE STRING,
PLNUM TYPE STRING,
BANFN TYPE STRING,
BNFPO TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
EBELE TYPE STRING,
AUFNR TYPE STRING,
AUFPS TYPE STRING,
UMWRK TYPE STRING,
PBDNR TYPE STRING,
UMREZ TYPE STRING,
UMREN TYPE STRING,
ERFME TYPE STRING,
ERFMG TYPE STRING,
VORAB TYPE STRING,
SBTER TYPE STRING,
AUFPL TYPE STRING,
APLZL TYPE STRING,END OF T_EKKO_STR. DATA: WA_PEG_MDRS_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_PEG_MDRS_STR-RSNUM sy-vline
WA_PEG_MDRS_STR-RSPOS sy-vline
WA_PEG_MDRS_STR-RSART sy-vline
WA_PEG_MDRS_STR-MATNR sy-vline
WA_PEG_MDRS_STR-WERKS sy-vline
WA_PEG_MDRS_STR-BDTER sy-vline
WA_PEG_MDRS_STR-BDMNG sy-vline
WA_PEG_MDRS_STR-MEINS sy-vline
WA_PEG_MDRS_STR-ENMNG sy-vline
WA_PEG_MDRS_STR-BAUGR sy-vline
WA_PEG_MDRS_STR-PSPEL sy-vline
WA_PEG_MDRS_STR-PLNUM sy-vline
WA_PEG_MDRS_STR-BANFN sy-vline
WA_PEG_MDRS_STR-BNFPO sy-vline
WA_PEG_MDRS_STR-EBELN sy-vline
WA_PEG_MDRS_STR-EBELP sy-vline
WA_PEG_MDRS_STR-EBELE sy-vline
WA_PEG_MDRS_STR-AUFNR sy-vline
WA_PEG_MDRS_STR-AUFPS sy-vline
WA_PEG_MDRS_STR-UMWRK sy-vline
WA_PEG_MDRS_STR-PBDNR sy-vline
WA_PEG_MDRS_STR-UMREZ sy-vline
WA_PEG_MDRS_STR-UMREN sy-vline
WA_PEG_MDRS_STR-ERFME sy-vline
WA_PEG_MDRS_STR-ERFMG sy-vline
WA_PEG_MDRS_STR-VORAB sy-vline
WA_PEG_MDRS_STR-SBTER sy-vline
WA_PEG_MDRS_STR-AUFPL sy-vline
WA_PEG_MDRS_STR-APLZL sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.
