ABAP Select data from SAP table RPIELDA0L_ESS 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 RPIELDA0L_ESS 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 RPIELDA0L_ESS. 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 RPIELDA0L_ESS 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_RPIELDA0L_ESS TYPE STANDARD TABLE OF RPIELDA0L_ESS,
      WA_RPIELDA0L_ESS TYPE RPIELDA0L_ESS,
      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: <RPIELDA0L_ESS> TYPE RPIELDA0L_ESS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RPIELDA0L_ESS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RPIELDA0L_ESS
  INTO TABLE IT_RPIELDA0L_ESS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPIELDA0L_ESS
*  INTO TABLE @DATA(IT_RPIELDA0L_ESS2).
*--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_RPIELDA0L_ESS INDEX 1 INTO DATA(WA_RPIELDA0L_ESS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RPIELDA0L_ESS ASSIGNING <RPIELDA0L_ESS>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPIELDA0L_ESS>-LOHNB = 1.
<RPIELDA0L_ESS>-LOHNB_TXT = 1.
<RPIELDA0L_ESS>-WERKS = 1.
<RPIELDA0L_ESS>-WERKS_TXT = 1.
<RPIELDA0L_ESS>-BTRTL = 1.
ENDLOOP.

LOOP AT IT_RPIELDA0L_ESS INTO WA_RPIELDA0L_ESS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPIELDA0L_ESS-BTRTL_TXT, sy-vline,
WA_RPIELDA0L_ESS-PERNR, sy-vline,
WA_RPIELDA0L_ESS-SNAME, sy-vline,
WA_RPIELDA0L_ESS-ENAME, sy-vline,
WA_RPIELDA0L_ESS-SART0, sy-vline,
WA_RPIELDA0L_ESS-BEGDA, sy-vline.
ENDLOOP. *Add any further fields from structure WA_RPIELDA0L_ESS 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_RPIELDA0L_ESS 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_RPIELDA0L_ESS INTO WA_RPIELDA0L_ESS. *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.
ENDFORM. *&---------------------------------------------------------------------* *& Form process_as_string_field_values *&---------------------------------------------------------------------* FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO. TYPES: BEGIN OF T_RPIELDA0L_ESS_STR,
LOHNB TYPE STRING,
LOHNB_TXT TYPE STRING,
WERKS TYPE STRING,
WERKS_TXT TYPE STRING,
BTRTL TYPE STRING,
BTRTL_TXT TYPE STRING,
PERNR TYPE STRING,
SNAME TYPE STRING,
ENAME TYPE STRING,
SART0 TYPE STRING,
BEGDA TYPE STRING,
SVTXT TYPE STRING,
SVAEN TYPE STRING,
XMARK TYPE STRING,
STATE TYPE STRING,
AECD0 TYPE STRING,
TABIX_2_3670 TYPE STRING,
SEQNR TYPE STRING,END OF T_EKKO_STR. DATA: WA_RPIELDA0L_ESS_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_RPIELDA0L_ESS_STR-LOHNB sy-vline
WA_RPIELDA0L_ESS_STR-LOHNB_TXT sy-vline
WA_RPIELDA0L_ESS_STR-WERKS sy-vline
WA_RPIELDA0L_ESS_STR-WERKS_TXT sy-vline
WA_RPIELDA0L_ESS_STR-BTRTL sy-vline
WA_RPIELDA0L_ESS_STR-BTRTL_TXT sy-vline
WA_RPIELDA0L_ESS_STR-PERNR sy-vline
WA_RPIELDA0L_ESS_STR-SNAME sy-vline
WA_RPIELDA0L_ESS_STR-ENAME sy-vline
WA_RPIELDA0L_ESS_STR-SART0 sy-vline
WA_RPIELDA0L_ESS_STR-BEGDA sy-vline
WA_RPIELDA0L_ESS_STR-SVTXT sy-vline
WA_RPIELDA0L_ESS_STR-SVAEN sy-vline
WA_RPIELDA0L_ESS_STR-XMARK sy-vline
WA_RPIELDA0L_ESS_STR-STATE sy-vline
WA_RPIELDA0L_ESS_STR-AECD0 sy-vline
WA_RPIELDA0L_ESS_STR-TABIX_2_3670 sy-vline
WA_RPIELDA0L_ESS_STR-SEQNR sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.