ABAP Select data from SAP table BAPI1198_SR_PST into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BAPI1198_SR_PST 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 BAPI1198_SR_PST. 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 BAPI1198_SR_PST 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_BAPI1198_SR_PST TYPE STANDARD TABLE OF BAPI1198_SR_PST,
      WA_BAPI1198_SR_PST TYPE BAPI1198_SR_PST,
      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: <BAPI1198_SR_PST> TYPE BAPI1198_SR_PST.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BAPI1198_SR_PST.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BAPI1198_SR_PST
  INTO TABLE IT_BAPI1198_SR_PST.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI1198_SR_PST
*  INTO TABLE @DATA(IT_BAPI1198_SR_PST2).
*--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_BAPI1198_SR_PST INDEX 1 INTO DATA(WA_BAPI1198_SR_PST2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BAPI1198_SR_PST ASSIGNING <BAPI1198_SR_PST>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPI1198_SR_PST>-MANDT = 1.
<BAPI1198_SR_PST>-IDENTIFIER = 1.
<BAPI1198_SR_PST>-CHANGE_NO = 1.
<BAPI1198_SR_PST>-GUID_MAST = 1.
<BAPI1198_SR_PST>-GUID_ROOT = 1.

ENDLOOP.

LOOP AT IT_BAPI1198_SR_PST INTO WA_BAPI1198_SR_PST.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI1198_SR_PST-CHANGE_NO_ROOT, sy-vline,
  WA_BAPI1198_SR_PST-NODE_NAME, sy-vline,
  WA_BAPI1198_SR_PST-NODE_TYPE, sy-vline,
  WA_BAPI1198_SR_PST-NODE_CNT, sy-vline,
  WA_BAPI1198_SR_PST-PNTXCNT, sy-vline,
  WA_BAPI1198_SR_PST-POBNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI1198_SR_PST 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_BAPI1198_SR_PST 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_BAPI1198_SR_PST INTO WA_BAPI1198_SR_PST.


*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 CHANGE_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPI1198_SR_PST-CHANGE_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI1198_SR_PST-CHANGE_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CHANGE_NO_ROOT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPI1198_SR_PST-CHANGE_NO_ROOT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI1198_SR_PST-CHANGE_NO_ROOT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field QUANTITY_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BAPI1198_SR_PST-QUANTITY_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI1198_SR_PST-QUANTITY_UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECORD_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPI1198_SR_PST-RECORD_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI1198_SR_PST-RECORD_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SPEC1, internal->external for field SUBSTANCE
CALL FUNCTION 'CONVERSION_EXIT_SPEC1_OUTPUT'
  EXPORTING
    input =                      WA_BAPI1198_SR_PST-SUBSTANCE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI1198_SR_PST-SUBSTANCE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOG_SYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPI1198_SR_PST-LOG_SYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI1198_SR_PST-LOG_SYSTEM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RCP_LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPI1198_SR_PST-RCP_LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI1198_SR_PST-RCP_LOGSYS.
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_BAPI1198_SR_PST_STR, 
MANDT TYPE STRING,
IDENTIFIER TYPE STRING,
CHANGE_NO TYPE STRING,
GUID_MAST TYPE STRING,
GUID_ROOT TYPE STRING,
CHANGE_NO_ROOT TYPE STRING,
NODE_NAME TYPE STRING,
NODE_TYPE TYPE STRING,
NODE_CNT TYPE STRING,
PNTXCNT TYPE STRING,
POBNR TYPE STRING,
VALFROM TYPE STRING,
VALTO TYPE STRING,
LOT_SIZE_MIN TYPE STRING,
LOT_SIZE_MAX TYPE STRING,
QUANTITY_UNIT TYPE STRING,
QUANTITY_UNIT_ISO TYPE STRING,
OTYPE TYPE STRING,
REALO TYPE STRING,
POB_TIMSTMP TYPE STRING,
COPY_FROM TYPE STRING,
FLG_INNR TYPE STRING,
AUTH_GRP TYPE STRING,
RECORD_NO TYPE STRING,
SUBCATEGRY TYPE STRING,
SUBSTANCE TYPE STRING,
CREATED_DATE TYPE STRING,
CREATED_BY TYPE STRING,
CHANGED_DATE TYPE STRING,
CHANGED_BY TYPE STRING,
LOG_SYSTEM TYPE STRING,
RCP_CREADAT TYPE STRING,
RCP_CREABY TYPE STRING,
RCP_CHNGDAT TYPE STRING,
RCP_CHNGBY TYPE STRING,
RCP_LOGSYS TYPE STRING,
LINEMODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI1198_SR_PST_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_BAPI1198_SR_PST_STR-MANDT sy-vline 
WA_BAPI1198_SR_PST_STR-IDENTIFIER sy-vline 
WA_BAPI1198_SR_PST_STR-CHANGE_NO sy-vline 
WA_BAPI1198_SR_PST_STR-GUID_MAST sy-vline 
WA_BAPI1198_SR_PST_STR-GUID_ROOT sy-vline 
WA_BAPI1198_SR_PST_STR-CHANGE_NO_ROOT sy-vline 
WA_BAPI1198_SR_PST_STR-NODE_NAME sy-vline 
WA_BAPI1198_SR_PST_STR-NODE_TYPE sy-vline 
WA_BAPI1198_SR_PST_STR-NODE_CNT sy-vline 
WA_BAPI1198_SR_PST_STR-PNTXCNT sy-vline 
WA_BAPI1198_SR_PST_STR-POBNR sy-vline 
WA_BAPI1198_SR_PST_STR-VALFROM sy-vline 
WA_BAPI1198_SR_PST_STR-VALTO sy-vline 
WA_BAPI1198_SR_PST_STR-LOT_SIZE_MIN sy-vline 
WA_BAPI1198_SR_PST_STR-LOT_SIZE_MAX sy-vline 
WA_BAPI1198_SR_PST_STR-QUANTITY_UNIT sy-vline 
WA_BAPI1198_SR_PST_STR-QUANTITY_UNIT_ISO sy-vline 
WA_BAPI1198_SR_PST_STR-OTYPE sy-vline 
WA_BAPI1198_SR_PST_STR-REALO sy-vline 
WA_BAPI1198_SR_PST_STR-POB_TIMSTMP sy-vline 
WA_BAPI1198_SR_PST_STR-COPY_FROM sy-vline 
WA_BAPI1198_SR_PST_STR-FLG_INNR sy-vline 
WA_BAPI1198_SR_PST_STR-AUTH_GRP sy-vline 
WA_BAPI1198_SR_PST_STR-RECORD_NO sy-vline 
WA_BAPI1198_SR_PST_STR-SUBCATEGRY sy-vline 
WA_BAPI1198_SR_PST_STR-SUBSTANCE sy-vline 
WA_BAPI1198_SR_PST_STR-CREATED_DATE sy-vline 
WA_BAPI1198_SR_PST_STR-CREATED_BY sy-vline 
WA_BAPI1198_SR_PST_STR-CHANGED_DATE sy-vline 
WA_BAPI1198_SR_PST_STR-CHANGED_BY sy-vline 
WA_BAPI1198_SR_PST_STR-LOG_SYSTEM sy-vline 
WA_BAPI1198_SR_PST_STR-RCP_CREADAT sy-vline 
WA_BAPI1198_SR_PST_STR-RCP_CREABY sy-vline 
WA_BAPI1198_SR_PST_STR-RCP_CHNGDAT sy-vline 
WA_BAPI1198_SR_PST_STR-RCP_CHNGBY sy-vline 
WA_BAPI1198_SR_PST_STR-RCP_LOGSYS sy-vline 
WA_BAPI1198_SR_PST_STR-LINEMODE sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.