ABAP Select data from SAP table PSGL_EXTSTRUCT_LEAD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSGL_EXTSTRUCT_LEAD
*  INTO TABLE @DATA(IT_PSGL_EXTSTRUCT_LEAD2).
*--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_PSGL_EXTSTRUCT_LEAD INDEX 1 INTO DATA(WA_PSGL_EXTSTRUCT_LEAD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSGL_EXTSTRUCT_LEAD>-RYEAR = 1.
<PSGL_EXTSTRUCT_LEAD>-ACTIV = 1.
<PSGL_EXTSTRUCT_LEAD>-RMVCT = 1.
<PSGL_EXTSTRUCT_LEAD>-RTCUR = 1.
<PSGL_EXTSTRUCT_LEAD>-RUNIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSGL_EXTSTRUCT_LEAD-AWTYP, sy-vline,
  WA_PSGL_EXTSTRUCT_LEAD-RLDNR, sy-vline,
  WA_PSGL_EXTSTRUCT_LEAD-RRCTY, sy-vline,
  WA_PSGL_EXTSTRUCT_LEAD-RVERS, sy-vline,
  WA_PSGL_EXTSTRUCT_LEAD-LOGSYS, sy-vline,
  WA_PSGL_EXTSTRUCT_LEAD-RACCT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSGL_EXTSTRUCT_LEAD 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_PSGL_EXTSTRUCT_LEAD 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_PSGL_EXTSTRUCT_LEAD INTO WA_PSGL_EXTSTRUCT_LEAD.


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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit PERI7, internal->external for field FISCPER
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_PSGL_EXTSTRUCT_LEAD-FISCPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSGL_EXTSTRUCT_LEAD-FISCPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field BALANCE
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_PSGL_EXTSTRUCT_LEAD-BALANCE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSGL_EXTSTRUCT_LEAD-BALANCE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field DEBIT
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_PSGL_EXTSTRUCT_LEAD-DEBIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSGL_EXTSTRUCT_LEAD-DEBIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field CREDIT
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_PSGL_EXTSTRUCT_LEAD-CREDIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSGL_EXTSTRUCT_LEAD-CREDIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field TURNOVER
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_PSGL_EXTSTRUCT_LEAD-TURNOVER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSGL_EXTSTRUCT_LEAD-TURNOVER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ADQUANUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PSGL_EXTSTRUCT_LEAD-ADQUANUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSGL_EXTSTRUCT_LEAD-ADQUANUNIT.
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_PSGL_EXTSTRUCT_LEAD_STR, 
RYEAR TYPE STRING,
ACTIV TYPE STRING,
RMVCT TYPE STRING,
RTCUR TYPE STRING,
RUNIT TYPE STRING,
AWTYP TYPE STRING,
RLDNR TYPE STRING,
RRCTY TYPE STRING,
RVERS TYPE STRING,
LOGSYS TYPE STRING,
RACCT TYPE STRING,
COST_ELEM TYPE STRING,
RE_BUKRS TYPE STRING,
RE_ACCOUNT TYPE STRING,
RBUKRS TYPE STRING,
RBUSA TYPE STRING,
KOKRS TYPE STRING,
FIKRS TYPE STRING,
SFAREA TYPE STRING,
SBUSA TYPE STRING,
RASSC TYPE STRING,
SFUND TYPE STRING,
SGRANT_NBR TYPE STRING,
SBUDGET_PD TYPE STRING,
RFUND TYPE STRING,
RGRANT_NBR TYPE STRING,
RFAREA TYPE STRING,
RBUDGET_PD TYPE STRING,
TIMESTAMP TYPE STRING,
QUANUNIT TYPE STRING,
VALUETYPE TYPE STRING,
CURTYPE TYPE STRING,
FISCPER TYPE STRING,
FISCVAR TYPE STRING,
CHARTACCTS TYPE STRING,
UPMOD TYPE STRING,
VALUTYP TYPE STRING,
CURRUNIT TYPE STRING,
BALANCE TYPE STRING,
DEBIT TYPE STRING,
CREDIT TYPE STRING,
TURNOVER TYPE STRING,
QUANTITY TYPE STRING,
ADQUANUNIT TYPE STRING,
ADQUANTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSGL_EXTSTRUCT_LEAD_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_PSGL_EXTSTRUCT_LEAD_STR-RYEAR sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-ACTIV sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-RMVCT sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-RTCUR sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-RUNIT sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-AWTYP sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-RLDNR sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-RRCTY sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-RVERS sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-LOGSYS sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-RACCT sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-COST_ELEM sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-RE_BUKRS sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-RE_ACCOUNT sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-RBUKRS sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-RBUSA sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-KOKRS sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-FIKRS sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-SFAREA sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-SBUSA sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-RASSC sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-SFUND sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-SGRANT_NBR sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-SBUDGET_PD sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-RFUND sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-RGRANT_NBR sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-RFAREA sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-RBUDGET_PD sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-TIMESTAMP sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-QUANUNIT sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-VALUETYPE sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-CURTYPE sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-FISCPER sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-FISCVAR sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-CHARTACCTS sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-UPMOD sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-VALUTYP sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-CURRUNIT sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-BALANCE sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-DEBIT sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-CREDIT sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-TURNOVER sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-QUANTITY sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-ADQUANUNIT sy-vline 
WA_PSGL_EXTSTRUCT_LEAD_STR-ADQUANTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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