ABAP Select data from SAP table ESTOH into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ESTOH 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 ESTOH. 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 ESTOH 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_ESTOH TYPE STANDARD TABLE OF ESTOH,
      WA_ESTOH TYPE ESTOH,
      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: <ESTOH> TYPE ESTOH.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESTOH
*  INTO TABLE @DATA(IT_ESTOH2).
*--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_ESTOH INDEX 1 INTO DATA(WA_ESTOH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESTOH>-MANDT = 1.
<ESTOH>-RECN = 1.
<ESTOH>-ACTN = 1.
<ESTOH>-VALFR = 1.
<ESTOH>-VALTO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESTOH-AENNR, sy-vline,
  WA_ESTOH-DELFLG, sy-vline,
  WA_ESTOH-PARKFLG, sy-vline,
  WA_ESTOH-CRDAT, sy-vline,
  WA_ESTOH-CRNAM, sy-vline,
  WA_ESTOH-UPDDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESTOH 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_ESTOH 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_ESTOH INTO WA_ESTOH.


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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field TRGDOKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESTOH-TRGDOKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESTOH-TRGDOKNR.
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_ESTOH_STR, 
MANDT TYPE STRING,
RECN TYPE STRING,
ACTN TYPE STRING,
VALFR TYPE STRING,
VALTO TYPE STRING,
AENNR TYPE STRING,
DELFLG TYPE STRING,
PARKFLG TYPE STRING,
CRDAT TYPE STRING,
CRNAM TYPE STRING,
UPDDAT TYPE STRING,
UPDNAM TYPE STRING,
SRSID TYPE STRING,
OWNID TYPE STRING,
RECNROOT TYPE STRING,
DDPID TYPE STRING,
LOGID TYPE STRING,
OHORDERNO TYPE STRING,
OHORDERCNT TYPE STRING,
REPORTRECN TYPE STRING,
SRCDOKAR TYPE STRING,
SRCDOKNR TYPE STRING,
SRCDOKVR TYPE STRING,
SRCDOKTL TYPE STRING,
TRGDOKAR TYPE STRING,
TRGDOKNR TYPE STRING,
TRGDOKVR TYPE STRING,
TRGDOKTL TYPE STRING,
ADDID TYPE STRING,
GENMODE TYPE STRING,
WWIAPPL1 TYPE STRING,
WWIAPPL2 TYPE STRING,
GENPC TYPE STRING,
WWIDEST TYPE STRING,
PRTYPE TYPE STRING,
STATUS TYPE STRING,
JOBNAME TYPE STRING,
JOBCOUNT TYPE STRING,
GENCBFUNC TYPE STRING,
GENPRIO TYPE STRING,
JOBID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESTOH_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_ESTOH_STR-MANDT sy-vline 
WA_ESTOH_STR-RECN sy-vline 
WA_ESTOH_STR-ACTN sy-vline 
WA_ESTOH_STR-VALFR sy-vline 
WA_ESTOH_STR-VALTO sy-vline 
WA_ESTOH_STR-AENNR sy-vline 
WA_ESTOH_STR-DELFLG sy-vline 
WA_ESTOH_STR-PARKFLG sy-vline 
WA_ESTOH_STR-CRDAT sy-vline 
WA_ESTOH_STR-CRNAM sy-vline 
WA_ESTOH_STR-UPDDAT sy-vline 
WA_ESTOH_STR-UPDNAM sy-vline 
WA_ESTOH_STR-SRSID sy-vline 
WA_ESTOH_STR-OWNID sy-vline 
WA_ESTOH_STR-RECNROOT sy-vline 
WA_ESTOH_STR-DDPID sy-vline 
WA_ESTOH_STR-LOGID sy-vline 
WA_ESTOH_STR-OHORDERNO sy-vline 
WA_ESTOH_STR-OHORDERCNT sy-vline 
WA_ESTOH_STR-REPORTRECN sy-vline 
WA_ESTOH_STR-SRCDOKAR sy-vline 
WA_ESTOH_STR-SRCDOKNR sy-vline 
WA_ESTOH_STR-SRCDOKVR sy-vline 
WA_ESTOH_STR-SRCDOKTL sy-vline 
WA_ESTOH_STR-TRGDOKAR sy-vline 
WA_ESTOH_STR-TRGDOKNR sy-vline 
WA_ESTOH_STR-TRGDOKVR sy-vline 
WA_ESTOH_STR-TRGDOKTL sy-vline 
WA_ESTOH_STR-ADDID sy-vline 
WA_ESTOH_STR-GENMODE sy-vline 
WA_ESTOH_STR-WWIAPPL1 sy-vline 
WA_ESTOH_STR-WWIAPPL2 sy-vline 
WA_ESTOH_STR-GENPC sy-vline 
WA_ESTOH_STR-WWIDEST sy-vline 
WA_ESTOH_STR-PRTYPE sy-vline 
WA_ESTOH_STR-STATUS sy-vline 
WA_ESTOH_STR-JOBNAME sy-vline 
WA_ESTOH_STR-JOBCOUNT sy-vline 
WA_ESTOH_STR-GENCBFUNC sy-vline 
WA_ESTOH_STR-GENPRIO sy-vline 
WA_ESTOH_STR-JOBID sy-vline      INTO ld_text SEPARATED BY SPACE.

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