ABAP Select data from SAP table MMPURPA_ITMMSG_STY 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 MMPURPA_ITMMSG_STY 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 MMPURPA_ITMMSG_STY. 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 MMPURPA_ITMMSG_STY 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_MMPURPA_ITMMSG_STY TYPE STANDARD TABLE OF MMPURPA_ITMMSG_STY,
      WA_MMPURPA_ITMMSG_STY TYPE MMPURPA_ITMMSG_STY,
      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: <MMPURPA_ITMMSG_STY> TYPE MMPURPA_ITMMSG_STY.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MMPURPA_ITMMSG_STY
*  INTO TABLE @DATA(IT_MMPURPA_ITMMSG_STY2).
*--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_MMPURPA_ITMMSG_STY INDEX 1 INTO DATA(WA_MMPURPA_ITMMSG_STY2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MMPURPA_ITMMSG_STY ASSIGNING <MMPURPA_ITMMSG_STY>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<MMPURPA_ITMMSG_STY>-EBELN = 1.
<MMPURPA_ITMMSG_STY>-EBELP = 1.
<MMPURPA_ITMMSG_STY>-LOGDAT = 1.
<MMPURPA_ITMMSG_STY>-LOGTIM = 1.
<MMPURPA_ITMMSG_STY>-STATUS = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MMPURPA_ITMMSG_STY-STATYP1, sy-vline,
WA_MMPURPA_ITMMSG_STY-STATYP, sy-vline,
WA_MMPURPA_ITMMSG_STY-STAMID, sy-vline,
WA_MMPURPA_ITMMSG_STY-STAMNO, sy-vline,
WA_MMPURPA_ITMMSG_STY-STATEXT, sy-vline,
ENDLOOP. *Add any further fields from structure WA_MMPURPA_ITMMSG_STY 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_MMPURPA_ITMMSG_STY 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_MMPURPA_ITMMSG_STY INTO WA_MMPURPA_ITMMSG_STY. *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_MMPURPA_ITMMSG_STY-EBELN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_MMPURPA_ITMMSG_STY-EBELN.
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_MMPURPA_ITMMSG_STY_STR,
EBELN TYPE STRING,
EBELP TYPE STRING,
LOGDAT TYPE STRING,
LOGTIM TYPE STRING,
STATUS TYPE STRING,
STATYP1 TYPE STRING,
STATYP TYPE STRING,
STAMID TYPE STRING,
STAMNO TYPE STRING,
STATEXT TYPE STRING,END OF T_EKKO_STR. DATA: WA_MMPURPA_ITMMSG_STY_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_MMPURPA_ITMMSG_STY_STR-EBELN sy-vline
WA_MMPURPA_ITMMSG_STY_STR-EBELP sy-vline
WA_MMPURPA_ITMMSG_STY_STR-LOGDAT sy-vline
WA_MMPURPA_ITMMSG_STY_STR-LOGTIM sy-vline
WA_MMPURPA_ITMMSG_STY_STR-STATUS sy-vline
WA_MMPURPA_ITMMSG_STY_STR-STATYP1 sy-vline
WA_MMPURPA_ITMMSG_STY_STR-STATYP sy-vline
WA_MMPURPA_ITMMSG_STY_STR-STAMID sy-vline
WA_MMPURPA_ITMMSG_STY_STR-STAMNO sy-vline
WA_MMPURPA_ITMMSG_STY_STR-STATEXT sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.