ABAP Select data from SAP table TRSV_POSFLOW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRSV_POSFLOW
*  INTO TABLE @DATA(IT_TRSV_POSFLOW2).
*--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_TRSV_POSFLOW INDEX 1 INTO DATA(WA_TRSV_POSFLOW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TRSV_POSFLOW>-MANDT = 1.
<TRSV_POSFLOW>-OS_GUID = 1.
<TRSV_POSFLOW>-COMPANY_CODE = 1.
<TRSV_POSFLOW>-SECURITY_ACCOUNT = 1.
<TRSV_POSFLOW>-SECURITY_ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TRSV_POSFLOW-OBJNR, sy-vline,
  WA_TRSV_POSFLOW-FLOW_GUID, sy-vline,
  WA_TRSV_POSFLOW-TRD_BUSTRANSID, sy-vline,
  WA_TRSV_POSFLOW-TRD_BUSTRANSCAT, sy-vline,
  WA_TRSV_POSFLOW-TRD_REBUSTRANSID, sy-vline,
  WA_TRSV_POSFLOW-TRD_FLOWNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TRSV_POSFLOW 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_TRSV_POSFLOW 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_TRSV_POSFLOW INTO WA_TRSV_POSFLOW.


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

*Conversion exit EXCRT, internal->external for field FX_RATE_PAYMT
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_TRSV_POSFLOW-FX_RATE_PAYMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRSV_POSFLOW-FX_RATE_PAYMT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field FX_RATE_LOCAL
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_TRSV_POSFLOW-FX_RATE_LOCAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRSV_POSFLOW-FX_RATE_LOCAL.
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_TRSV_POSFLOW_STR, 
MANDT TYPE STRING,
OS_GUID TYPE STRING,
COMPANY_CODE TYPE STRING,
SECURITY_ACCOUNT TYPE STRING,
SECURITY_ID TYPE STRING,
OBJNR TYPE STRING,
FLOW_GUID TYPE STRING,
TRD_BUSTRANSID TYPE STRING,
TRD_BUSTRANSCAT TYPE STRING,
TRD_REBUSTRANSID TYPE STRING,
TRD_FLOWNR TYPE STRING,
TRD_STATE TYPE STRING,
DIS_FLOWTYPE TYPE STRING,
FLOWCAT_TRS TYPE STRING,
QUANT_CAT TYPE STRING,
POSITION_CURR TYPE STRING,
POSITION_AMT TYPE STRING,
POSAMT_IDX_CLEAN TYPE STRING,
POSITION_DATE TYPE STRING,
UNITS TYPE STRING,
NOMINAL_CURR TYPE STRING,
NOMINAL_AMT TYPE STRING,
LOCAL_CURR TYPE STRING,
LOCAL_AMT TYPE STRING,
PAYMENT_AMT TYPE STRING,
PAYMENT_CURR TYPE STRING,
PAYMENT_DATE TYPE STRING,
COUPON_DATE TYPE STRING,
COUPON_SIGN TYPE STRING,
FX_RATE_PAYMT TYPE STRING,
FX_RATE_PAY_FIX TYPE STRING,
FX_RATE_LOCAL TYPE STRING,
RAHABKI TYPE STRING,
RAHKTID TYPE STRING,
SIGN TYPE STRING,
FIXING_USER TYPE STRING,
FIXING_DATE TYPE STRING,
FIXING_TIME TYPE STRING,
SBERFIMA TYPE STRING,
SAEND TYPE STRING,
SPLANIST TYPE STRING,
SWOHER TYPE STRING,
BBASIS TYPE STRING,
SBASIS TYPE STRING,
DBERVON TYPE STRING,
SEXCLVON TYPE STRING,
SULTVON TYPE STRING,
DBERBIS TYPE STRING,
SINCLBIS TYPE STRING,
SULTBIS TYPE STRING,
DVALUT TYPE STRING,
SINCL TYPE STRING,
SVULT TYPE STRING,
DFAELL TYPE STRING,
SFULT TYPE STRING,
DVERRECH TYPE STRING,
SINCLVERR TYPE STRING,
SULTVERR TYPE STRING,
ATAGE TYPE STRING,
ABASTAGE TYPE STRING,
APERTAGE TYPE STRING,
AMMRHY TYPE STRING,
ATTRHY TYPE STRING,
STGMETH TYPE STRING,
STGBASIS TYPE STRING,
SZBMETH TYPE STRING,
JEXPOZINS TYPE STRING,
DBPERIOD TYPE STRING,
SPAEXCL TYPE STRING,
SPAULT TYPE STRING,
DEPERIOD TYPE STRING,
SPEINCL TYPE STRING,
SPEULT TYPE STRING,
SWHRKOND TYPE STRING,
PKOND TYPE STRING,
DPKOND TYPE STRING,
DZFEST TYPE STRING,
BKOND TYPE STRING,
KBKOND TYPE STRING,
SSTCKKZ TYPE STRING,
SSTCKTG TYPE STRING,
SFLAT TYPE STRING,
SKOART TYPE STRING,
SKALIDWT TYPE STRING,
DGUEL_KP TYPE STRING,
NSTUFE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRSV_POSFLOW_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_TRSV_POSFLOW_STR-MANDT sy-vline 
WA_TRSV_POSFLOW_STR-OS_GUID sy-vline 
WA_TRSV_POSFLOW_STR-COMPANY_CODE sy-vline 
WA_TRSV_POSFLOW_STR-SECURITY_ACCOUNT sy-vline 
WA_TRSV_POSFLOW_STR-SECURITY_ID sy-vline 
WA_TRSV_POSFLOW_STR-OBJNR sy-vline 
WA_TRSV_POSFLOW_STR-FLOW_GUID sy-vline 
WA_TRSV_POSFLOW_STR-TRD_BUSTRANSID sy-vline 
WA_TRSV_POSFLOW_STR-TRD_BUSTRANSCAT sy-vline 
WA_TRSV_POSFLOW_STR-TRD_REBUSTRANSID sy-vline 
WA_TRSV_POSFLOW_STR-TRD_FLOWNR sy-vline 
WA_TRSV_POSFLOW_STR-TRD_STATE sy-vline 
WA_TRSV_POSFLOW_STR-DIS_FLOWTYPE sy-vline 
WA_TRSV_POSFLOW_STR-FLOWCAT_TRS sy-vline 
WA_TRSV_POSFLOW_STR-QUANT_CAT sy-vline 
WA_TRSV_POSFLOW_STR-POSITION_CURR sy-vline 
WA_TRSV_POSFLOW_STR-POSITION_AMT sy-vline 
WA_TRSV_POSFLOW_STR-POSAMT_IDX_CLEAN sy-vline 
WA_TRSV_POSFLOW_STR-POSITION_DATE sy-vline 
WA_TRSV_POSFLOW_STR-UNITS sy-vline 
WA_TRSV_POSFLOW_STR-NOMINAL_CURR sy-vline 
WA_TRSV_POSFLOW_STR-NOMINAL_AMT sy-vline 
WA_TRSV_POSFLOW_STR-LOCAL_CURR sy-vline 
WA_TRSV_POSFLOW_STR-LOCAL_AMT sy-vline 
WA_TRSV_POSFLOW_STR-PAYMENT_AMT sy-vline 
WA_TRSV_POSFLOW_STR-PAYMENT_CURR sy-vline 
WA_TRSV_POSFLOW_STR-PAYMENT_DATE sy-vline 
WA_TRSV_POSFLOW_STR-COUPON_DATE sy-vline 
WA_TRSV_POSFLOW_STR-COUPON_SIGN sy-vline 
WA_TRSV_POSFLOW_STR-FX_RATE_PAYMT sy-vline 
WA_TRSV_POSFLOW_STR-FX_RATE_PAY_FIX sy-vline 
WA_TRSV_POSFLOW_STR-FX_RATE_LOCAL sy-vline 
WA_TRSV_POSFLOW_STR-RAHABKI sy-vline 
WA_TRSV_POSFLOW_STR-RAHKTID sy-vline 
WA_TRSV_POSFLOW_STR-SIGN sy-vline 
WA_TRSV_POSFLOW_STR-FIXING_USER sy-vline 
WA_TRSV_POSFLOW_STR-FIXING_DATE sy-vline 
WA_TRSV_POSFLOW_STR-FIXING_TIME sy-vline 
WA_TRSV_POSFLOW_STR-SBERFIMA sy-vline 
WA_TRSV_POSFLOW_STR-SAEND sy-vline 
WA_TRSV_POSFLOW_STR-SPLANIST sy-vline 
WA_TRSV_POSFLOW_STR-SWOHER sy-vline 
WA_TRSV_POSFLOW_STR-BBASIS sy-vline 
WA_TRSV_POSFLOW_STR-SBASIS sy-vline 
WA_TRSV_POSFLOW_STR-DBERVON sy-vline 
WA_TRSV_POSFLOW_STR-SEXCLVON sy-vline 
WA_TRSV_POSFLOW_STR-SULTVON sy-vline 
WA_TRSV_POSFLOW_STR-DBERBIS sy-vline 
WA_TRSV_POSFLOW_STR-SINCLBIS sy-vline 
WA_TRSV_POSFLOW_STR-SULTBIS sy-vline 
WA_TRSV_POSFLOW_STR-DVALUT sy-vline 
WA_TRSV_POSFLOW_STR-SINCL sy-vline 
WA_TRSV_POSFLOW_STR-SVULT sy-vline 
WA_TRSV_POSFLOW_STR-DFAELL sy-vline 
WA_TRSV_POSFLOW_STR-SFULT sy-vline 
WA_TRSV_POSFLOW_STR-DVERRECH sy-vline 
WA_TRSV_POSFLOW_STR-SINCLVERR sy-vline 
WA_TRSV_POSFLOW_STR-SULTVERR sy-vline 
WA_TRSV_POSFLOW_STR-ATAGE sy-vline 
WA_TRSV_POSFLOW_STR-ABASTAGE sy-vline 
WA_TRSV_POSFLOW_STR-APERTAGE sy-vline 
WA_TRSV_POSFLOW_STR-AMMRHY sy-vline 
WA_TRSV_POSFLOW_STR-ATTRHY sy-vline 
WA_TRSV_POSFLOW_STR-STGMETH sy-vline 
WA_TRSV_POSFLOW_STR-STGBASIS sy-vline 
WA_TRSV_POSFLOW_STR-SZBMETH sy-vline 
WA_TRSV_POSFLOW_STR-JEXPOZINS sy-vline 
WA_TRSV_POSFLOW_STR-DBPERIOD sy-vline 
WA_TRSV_POSFLOW_STR-SPAEXCL sy-vline 
WA_TRSV_POSFLOW_STR-SPAULT sy-vline 
WA_TRSV_POSFLOW_STR-DEPERIOD sy-vline 
WA_TRSV_POSFLOW_STR-SPEINCL sy-vline 
WA_TRSV_POSFLOW_STR-SPEULT sy-vline 
WA_TRSV_POSFLOW_STR-SWHRKOND sy-vline 
WA_TRSV_POSFLOW_STR-PKOND sy-vline 
WA_TRSV_POSFLOW_STR-DPKOND sy-vline 
WA_TRSV_POSFLOW_STR-DZFEST sy-vline 
WA_TRSV_POSFLOW_STR-BKOND sy-vline 
WA_TRSV_POSFLOW_STR-KBKOND sy-vline 
WA_TRSV_POSFLOW_STR-SSTCKKZ sy-vline 
WA_TRSV_POSFLOW_STR-SSTCKTG sy-vline 
WA_TRSV_POSFLOW_STR-SFLAT sy-vline 
WA_TRSV_POSFLOW_STR-SKOART sy-vline 
WA_TRSV_POSFLOW_STR-SKALIDWT sy-vline 
WA_TRSV_POSFLOW_STR-DGUEL_KP sy-vline 
WA_TRSV_POSFLOW_STR-NSTUFE sy-vline      INTO ld_text SEPARATED BY SPACE.

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