ABAP Select data from SAP table EISHR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EISHR
*  INTO TABLE @DATA(IT_EISHR2).
*--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_EISHR INDEX 1 INTO DATA(WA_EISHR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EISHR>-MANDT = 1.
<EISHR>-YEARB = 1.
<EISHR>-PERDE = 1.
<EISHR>-HRPVER = 1.
<EISHR>-OBJSTAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EISHR-LOT_V, sy-vline,
  WA_EISHR-LOT_U, sy-vline,
  WA_EISHR-ORGUNI, sy-vline,
  WA_EISHR-POSITK, sy-vline,
  WA_EISHR-POSI_CNT, sy-vline,
  WA_EISHR-PERSNU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EISHR 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_EISHR 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_EISHR INTO WA_EISHR.


*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 YEARB
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_EISHR-YEARB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EISHR-YEARB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PDATE, internal->external for field GBDAT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_EISHR-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EISHR-GBDAT.
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_EISHR_STR, 
MANDT TYPE STRING,
YEARB TYPE STRING,
PERDE TYPE STRING,
HRPVER TYPE STRING,
OBJSTAT TYPE STRING,
LOT_V TYPE STRING,
LOT_U TYPE STRING,
ORGUNI TYPE STRING,
POSITK TYPE STRING,
POSI_CNT TYPE STRING,
PERSNU TYPE STRING,
PERS_CNT TYPE STRING,
ENAME TYPE STRING,
ALTRS TYPE STRING,
YOFSERVICE TYPE STRING,
SALARY TYPE STRING,
PEBER TYPE STRING,
BTRTL TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
GESCH TYPE STRING,
COMCOD TYPE STRING,
BUSARE TYPE STRING,
CONARE TYPE STRING,
NATIO TYPE STRING,
GBDAT TYPE STRING,
MASSN TYPE STRING,
MASSG TYPE STRING,
HDATE TYPE STRING,
ABSET TYPE STRING,
ABABWTG TYPE STRING,
ABSTDAZ TYPE STRING,
ATTEN TYPE STRING,
ATABWTG TYPE STRING,
ATSTDAZ TYPE STRING,
STAT2 TYPE STRING,
ABKRS TYPE STRING,
VACAN TYPE STRING,
REDUN TYPE STRING,
AUSBI TYPE STRING,
SLART TYPE STRING,
SLABS TYPE STRING,
SCHKZ TYPE STRING,
LGA14 TYPE STRING,
LGA15 TYPE STRING,
TRFAR TYPE STRING,
TRFGB TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EISHR_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_EISHR_STR-MANDT sy-vline 
WA_EISHR_STR-YEARB sy-vline 
WA_EISHR_STR-PERDE sy-vline 
WA_EISHR_STR-HRPVER sy-vline 
WA_EISHR_STR-OBJSTAT sy-vline 
WA_EISHR_STR-LOT_V sy-vline 
WA_EISHR_STR-LOT_U sy-vline 
WA_EISHR_STR-ORGUNI sy-vline 
WA_EISHR_STR-POSITK sy-vline 
WA_EISHR_STR-POSI_CNT sy-vline 
WA_EISHR_STR-PERSNU sy-vline 
WA_EISHR_STR-PERS_CNT sy-vline 
WA_EISHR_STR-ENAME sy-vline 
WA_EISHR_STR-ALTRS sy-vline 
WA_EISHR_STR-YOFSERVICE sy-vline 
WA_EISHR_STR-SALARY sy-vline 
WA_EISHR_STR-PEBER sy-vline 
WA_EISHR_STR-BTRTL sy-vline 
WA_EISHR_STR-PERSG sy-vline 
WA_EISHR_STR-PERSK sy-vline 
WA_EISHR_STR-GESCH sy-vline 
WA_EISHR_STR-COMCOD sy-vline 
WA_EISHR_STR-BUSARE sy-vline 
WA_EISHR_STR-CONARE sy-vline 
WA_EISHR_STR-NATIO sy-vline 
WA_EISHR_STR-GBDAT sy-vline 
WA_EISHR_STR-MASSN sy-vline 
WA_EISHR_STR-MASSG sy-vline 
WA_EISHR_STR-HDATE sy-vline 
WA_EISHR_STR-ABSET sy-vline 
WA_EISHR_STR-ABABWTG sy-vline 
WA_EISHR_STR-ABSTDAZ sy-vline 
WA_EISHR_STR-ATTEN sy-vline 
WA_EISHR_STR-ATABWTG sy-vline 
WA_EISHR_STR-ATSTDAZ sy-vline 
WA_EISHR_STR-STAT2 sy-vline 
WA_EISHR_STR-ABKRS sy-vline 
WA_EISHR_STR-VACAN sy-vline 
WA_EISHR_STR-REDUN sy-vline 
WA_EISHR_STR-AUSBI sy-vline 
WA_EISHR_STR-SLART sy-vline 
WA_EISHR_STR-SLABS sy-vline 
WA_EISHR_STR-SCHKZ sy-vline 
WA_EISHR_STR-LGA14 sy-vline 
WA_EISHR_STR-LGA15 sy-vline 
WA_EISHR_STR-TRFAR sy-vline 
WA_EISHR_STR-TRFGB sy-vline 
WA_EISHR_STR-TRFGR sy-vline 
WA_EISHR_STR-TRFST sy-vline      INTO ld_text SEPARATED BY SPACE.

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