ABAP Select data from SAP table PEG_ADMIN 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_ADMIN 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_ADMIN. 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_ADMIN 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_ADMIN TYPE STANDARD TABLE OF PEG_ADMIN,
      WA_PEG_ADMIN TYPE PEG_ADMIN,
      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_ADMIN> TYPE PEG_ADMIN.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PEG_ADMIN
*  INTO TABLE @DATA(IT_PEG_ADMIN2).
*--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_ADMIN INDEX 1 INTO DATA(WA_PEG_ADMIN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PEG_ADMIN ASSIGNING <PEG_ADMIN>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<PEG_ADMIN>-MANDT = 1.
<PEG_ADMIN>-LOGNUMBER = 1.
<PEG_ADMIN>-WERKS = 1.
<PEG_ADMIN>-GRPNR = 1.
<PEG_ADMIN>-FIXRL = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PEG_ADMIN-FRACTQTY, sy-vline,
WA_PEG_ADMIN-EXCESS, sy-vline,
WA_PEG_ADMIN-SCRAP, sy-vline,
WA_PEG_ADMIN-LOST, sy-vline,
WA_PEG_ADMIN-EXC_PSPNR, sy-vline,
WA_PEG_ADMIN-SCR_PSPNR, sy-vline.
ENDLOOP. *Add any further fields from structure WA_PEG_ADMIN 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_ADMIN 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_ADMIN INTO WA_PEG_ADMIN. *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 ABPSP, internal->external for field GRPNR CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT' EXPORTING input = WA_PEG_ADMIN-GRPNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_PEG_ADMIN-GRPNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ABPSP, internal->external for field LOST_PSPNR CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT' EXPORTING input = WA_PEG_ADMIN-LOST_PSPNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_PEG_ADMIN-LOST_PSPNR.
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_ADMIN_STR,
MANDT TYPE STRING,
LOGNUMBER TYPE STRING,
WERKS TYPE STRING,
GRPNR TYPE STRING,
FIXRL TYPE STRING,
FRACTQTY TYPE STRING,
EXCESS TYPE STRING,
SCRAP TYPE STRING,
LOST TYPE STRING,
EXC_PSPNR TYPE STRING,
SCR_PSPNR TYPE STRING,
LOST_PSPNR TYPE STRING,
PEG_RESZ1 TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
USNAM TYPE STRING,
TCODE TYPE STRING,
TIMESTMP TYPE STRING,END OF T_EKKO_STR. DATA: WA_PEG_ADMIN_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_ADMIN_STR-MANDT sy-vline
WA_PEG_ADMIN_STR-LOGNUMBER sy-vline
WA_PEG_ADMIN_STR-WERKS sy-vline
WA_PEG_ADMIN_STR-GRPNR sy-vline
WA_PEG_ADMIN_STR-FIXRL sy-vline
WA_PEG_ADMIN_STR-FRACTQTY sy-vline
WA_PEG_ADMIN_STR-EXCESS sy-vline
WA_PEG_ADMIN_STR-SCRAP sy-vline
WA_PEG_ADMIN_STR-LOST sy-vline
WA_PEG_ADMIN_STR-EXC_PSPNR sy-vline
WA_PEG_ADMIN_STR-SCR_PSPNR sy-vline
WA_PEG_ADMIN_STR-LOST_PSPNR sy-vline
WA_PEG_ADMIN_STR-PEG_RESZ1 sy-vline
WA_PEG_ADMIN_STR-CPUDT sy-vline
WA_PEG_ADMIN_STR-CPUTM sy-vline
WA_PEG_ADMIN_STR-USNAM sy-vline
WA_PEG_ADMIN_STR-TCODE sy-vline
WA_PEG_ADMIN_STR-TIMESTMP sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.