ABAP Select data from SAP table MAPL_DI 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 MAPL_DI 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 MAPL_DI. 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 MAPL_DI 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_MAPL_DI TYPE STANDARD TABLE OF MAPL_DI,
      WA_MAPL_DI TYPE MAPL_DI,
      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: <MAPL_DI> TYPE MAPL_DI.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MAPL_DI
*  INTO TABLE @DATA(IT_MAPL_DI2).
*--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_MAPL_DI INDEX 1 INTO DATA(WA_MAPL_DI2).


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

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MAPL_DI-PLNNR, sy-vline,
WA_MAPL_DI-PLNAL, sy-vline,
WA_MAPL_DI-ZKRIZ, sy-vline,
WA_MAPL_DI-ZAEHL, sy-vline,
WA_MAPL_DI-DATUV, sy-vline,
WA_MAPL_DI-TECHV, sy-vline.
ENDLOOP. *Add any further fields from structure WA_MAPL_DI 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_MAPL_DI 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_MAPL_DI INTO WA_MAPL_DI. *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_MAPL_DI-MATNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_MAPL_DI-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit ABPSP, internal->external for field PSPNR CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT' EXPORTING input = WA_MAPL_DI-PSPNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_MAPL_DI-PSPNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field VERSN_SOURCE CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_MAPL_DI-VERSN_SOURCE IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_MAPL_DI-VERSN_SOURCE.
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_MAPL_DI_STR,
ACTTYP TYPE STRING,
MANDT TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
ZKRIZ TYPE STRING,
ZAEHL TYPE STRING,
DATUV TYPE STRING,
TECHV TYPE STRING,
AENNR TYPE STRING,
LOEKZ TYPE STRING,
PARKZ TYPE STRING,
ANDAT TYPE STRING,
ANNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
LIFNR TYPE STRING,
KUNR TYPE STRING,
SUCHFELD TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
PSPNR TYPE STRING,
VALID_TO TYPE STRING,
LOEKZ_INHERITED TYPE STRING,
VERSN TYPE STRING,
VERSN_SOURCE TYPE STRING,
VERSN_SOURCE_ZKRIZ TYPE STRING,
MS_OBJECT TYPE STRING,
MS_OBJTYPE TYPE STRING,END OF T_EKKO_STR. DATA: WA_MAPL_DI_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_MAPL_DI_STR-ACTTYP sy-vline
WA_MAPL_DI_STR-MANDT sy-vline
WA_MAPL_DI_STR-MATNR sy-vline
WA_MAPL_DI_STR-WERKS sy-vline
WA_MAPL_DI_STR-PLNTY sy-vline
WA_MAPL_DI_STR-PLNNR sy-vline
WA_MAPL_DI_STR-PLNAL sy-vline
WA_MAPL_DI_STR-ZKRIZ sy-vline
WA_MAPL_DI_STR-ZAEHL sy-vline
WA_MAPL_DI_STR-DATUV sy-vline
WA_MAPL_DI_STR-TECHV sy-vline
WA_MAPL_DI_STR-AENNR sy-vline
WA_MAPL_DI_STR-LOEKZ sy-vline
WA_MAPL_DI_STR-PARKZ sy-vline
WA_MAPL_DI_STR-ANDAT sy-vline
WA_MAPL_DI_STR-ANNAM sy-vline
WA_MAPL_DI_STR-AEDAT sy-vline
WA_MAPL_DI_STR-AENAM sy-vline
WA_MAPL_DI_STR-LIFNR sy-vline
WA_MAPL_DI_STR-KUNR sy-vline
WA_MAPL_DI_STR-SUCHFELD sy-vline
WA_MAPL_DI_STR-VBELN sy-vline
WA_MAPL_DI_STR-POSNR sy-vline
WA_MAPL_DI_STR-PSPNR sy-vline
WA_MAPL_DI_STR-VALID_TO sy-vline
WA_MAPL_DI_STR-LOEKZ_INHERITED sy-vline
WA_MAPL_DI_STR-VERSN sy-vline
WA_MAPL_DI_STR-VERSN_SOURCE sy-vline
WA_MAPL_DI_STR-VERSN_SOURCE_ZKRIZ sy-vline
WA_MAPL_DI_STR-MS_OBJECT sy-vline
WA_MAPL_DI_STR-MS_OBJTYPE sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.