ABAP Select data from SAP table ROIU_PR_TWCTV 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 ROIU_PR_TWCTV 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 ROIU_PR_TWCTV. 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 ROIU_PR_TWCTV 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_ROIU_PR_TWCTV TYPE STANDARD TABLE OF ROIU_PR_TWCTV,
      WA_ROIU_PR_TWCTV TYPE ROIU_PR_TWCTV,
      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: <ROIU_PR_TWCTV> TYPE ROIU_PR_TWCTV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIU_PR_TWCTV
*  INTO TABLE @DATA(IT_ROIU_PR_TWCTV2).
*--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_ROIU_PR_TWCTV INDEX 1 INTO DATA(WA_ROIU_PR_TWCTV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ROIU_PR_TWCTV ASSIGNING <ROIU_PR_TWCTV>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIU_PR_TWCTV>-WL_NO = 1.
<ROIU_PR_TWCTV>-WC_NO = 1.
<ROIU_PR_TWCTV>-MAJPD_CD = 1.
<ROIU_PR_TWCTV>-PD_CD = 1.
<ROIU_PR_TWCTV>-MATNR = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIU_PR_TWCTV-VT_CD, sy-vline,
WA_ROIU_PR_TWCTV-TCM_CD, sy-vline,
WA_ROIU_PR_TWCTV-DEP_MAJPD, sy-vline,
WA_ROIU_PR_TWCTV-DEP_PD_CD, sy-vline,
WA_ROIU_PR_TWCTV-DEP_VT_CD, sy-vline,
WA_ROIU_PR_TWCTV-THEO_RAT_FAC, sy-vline.
ENDLOOP. *Add any further fields from structure WA_ROIU_PR_TWCTV 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_ROIU_PR_TWCTV 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_ROIU_PR_TWCTV INTO WA_ROIU_PR_TWCTV. *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 WL_NO CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_ROIU_PR_TWCTV-WL_NO IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ROIU_PR_TWCTV-WL_NO.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field MATNR CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT' EXPORTING input = WA_ROIU_PR_TWCTV-MATNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ROIU_PR_TWCTV-MATNR.
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_ROIU_PR_TWCTV_STR,
WL_NO TYPE STRING,
WC_NO TYPE STRING,
MAJPD_CD TYPE STRING,
PD_CD TYPE STRING,
MATNR TYPE STRING,
VT_CD TYPE STRING,
TCM_CD TYPE STRING,
DEP_MAJPD TYPE STRING,
DEP_PD_CD TYPE STRING,
DEP_VT_CD TYPE STRING,
THEO_RAT_FAC TYPE STRING,
THEO_RAT_CD TYPE STRING,
TST_QY TYPE STRING,
THEO_QY TYPE STRING,
DAYS_PROD TYPE STRING,
PRD_HRS TYPE STRING,
BTU_FAC_VOL TYPE STRING,
ADJ_THEO_VOL TYPE STRING,
GPLT_PAM_CD TYPE STRING,END OF T_EKKO_STR. DATA: WA_ROIU_PR_TWCTV_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_ROIU_PR_TWCTV_STR-WL_NO sy-vline
WA_ROIU_PR_TWCTV_STR-WC_NO sy-vline
WA_ROIU_PR_TWCTV_STR-MAJPD_CD sy-vline
WA_ROIU_PR_TWCTV_STR-PD_CD sy-vline
WA_ROIU_PR_TWCTV_STR-MATNR sy-vline
WA_ROIU_PR_TWCTV_STR-VT_CD sy-vline
WA_ROIU_PR_TWCTV_STR-TCM_CD sy-vline
WA_ROIU_PR_TWCTV_STR-DEP_MAJPD sy-vline
WA_ROIU_PR_TWCTV_STR-DEP_PD_CD sy-vline
WA_ROIU_PR_TWCTV_STR-DEP_VT_CD sy-vline
WA_ROIU_PR_TWCTV_STR-THEO_RAT_FAC sy-vline
WA_ROIU_PR_TWCTV_STR-THEO_RAT_CD sy-vline
WA_ROIU_PR_TWCTV_STR-TST_QY sy-vline
WA_ROIU_PR_TWCTV_STR-THEO_QY sy-vline
WA_ROIU_PR_TWCTV_STR-DAYS_PROD sy-vline
WA_ROIU_PR_TWCTV_STR-PRD_HRS sy-vline
WA_ROIU_PR_TWCTV_STR-BTU_FAC_VOL sy-vline
WA_ROIU_PR_TWCTV_STR-ADJ_THEO_VOL sy-vline
WA_ROIU_PR_TWCTV_STR-GPLT_PAM_CD sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.