ABAP Select data from SAP table TWISPC_MARA 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 TWISPC_MARA 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 TWISPC_MARA. 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 TWISPC_MARA 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_TWISPC_MARA TYPE STANDARD TABLE OF TWISPC_MARA,
      WA_TWISPC_MARA TYPE TWISPC_MARA,
      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: <TWISPC_MARA> TYPE TWISPC_MARA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TWISPC_MARA
*  INTO TABLE @DATA(IT_TWISPC_MARA2).
*--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_TWISPC_MARA INDEX 1 INTO DATA(WA_TWISPC_MARA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TWISPC_MARA ASSIGNING <TWISPC_MARA>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<TWISPC_MARA>-MANDT = 1.
<TWISPC_MARA>-MATNR = 1.
<TWISPC_MARA>-REFMATNR = 1.
<TWISPC_MARA>-FLG_REFART = 1.
<TWISPC_MARA>-FLG_REFWG = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TWISPC_MARA-FLG_MAN, sy-vline,
WA_TWISPC_MARA-MATKL, sy-vline,
WA_TWISPC_MARA-ATTYP, sy-vline,
WA_TWISPC_MARA-PLGTP, sy-vline,
WA_TWISPC_MARA-SAISO, sy-vline,
WA_TWISPC_MARA-SAISJ, sy-vline.
ENDLOOP. *Add any further fields from structure WA_TWISPC_MARA 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_TWISPC_MARA 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_TWISPC_MARA INTO WA_TWISPC_MARA. *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_TWISPC_MARA-MATNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_TWISPC_MARA-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit EAN11, internal->external for field EAN11 CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT' EXPORTING input = WA_TWISPC_MARA-EAN11 IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_TWISPC_MARA-EAN11.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit CUNIT, internal->external for field BSTME CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_TWISPC_MARA-BSTME IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_TWISPC_MARA-BSTME.
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_TWISPC_MARA_STR,
MANDT TYPE STRING,
MATNR TYPE STRING,
REFMATNR TYPE STRING,
FLG_REFART TYPE STRING,
FLG_REFWG TYPE STRING,
FLG_MAN TYPE STRING,
MATKL TYPE STRING,
ATTYP TYPE STRING,
PLGTP TYPE STRING,
SAISO TYPE STRING,
SAISJ TYPE STRING,
MERK1 TYPE STRING,
MERK2 TYPE STRING,
MERK3 TYPE STRING,
EAN11 TYPE STRING,
NUMTP TYPE STRING,
PRDHA TYPE STRING,
DATAB TYPE STRING,
SATNR TYPE STRING,
PMATA TYPE STRING,
MFRNR TYPE STRING,
LAEDA TYPE STRING,
AENAM TYPE STRING,
MTART TYPE STRING,
MEINS TYPE STRING,
BSTME TYPE STRING,END OF T_EKKO_STR. DATA: WA_TWISPC_MARA_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_TWISPC_MARA_STR-MANDT sy-vline
WA_TWISPC_MARA_STR-MATNR sy-vline
WA_TWISPC_MARA_STR-REFMATNR sy-vline
WA_TWISPC_MARA_STR-FLG_REFART sy-vline
WA_TWISPC_MARA_STR-FLG_REFWG sy-vline
WA_TWISPC_MARA_STR-FLG_MAN sy-vline
WA_TWISPC_MARA_STR-MATKL sy-vline
WA_TWISPC_MARA_STR-ATTYP sy-vline
WA_TWISPC_MARA_STR-PLGTP sy-vline
WA_TWISPC_MARA_STR-SAISO sy-vline
WA_TWISPC_MARA_STR-SAISJ sy-vline
WA_TWISPC_MARA_STR-MERK1 sy-vline
WA_TWISPC_MARA_STR-MERK2 sy-vline
WA_TWISPC_MARA_STR-MERK3 sy-vline
WA_TWISPC_MARA_STR-EAN11 sy-vline
WA_TWISPC_MARA_STR-NUMTP sy-vline
WA_TWISPC_MARA_STR-PRDHA sy-vline
WA_TWISPC_MARA_STR-DATAB sy-vline
WA_TWISPC_MARA_STR-SATNR sy-vline
WA_TWISPC_MARA_STR-PMATA sy-vline
WA_TWISPC_MARA_STR-MFRNR sy-vline
WA_TWISPC_MARA_STR-LAEDA sy-vline
WA_TWISPC_MARA_STR-AENAM sy-vline
WA_TWISPC_MARA_STR-MTART sy-vline
WA_TWISPC_MARA_STR-MEINS sy-vline
WA_TWISPC_MARA_STR-BSTME sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.