ABAP Select data from SAP table EREC_S_API_P5126 into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP EREC_S_API_P5126 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 EREC_S_API_P5126. 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 EREC_S_API_P5126 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_EREC_S_API_P5126 TYPE STANDARD TABLE OF EREC_S_API_P5126,
      WA_EREC_S_API_P5126 TYPE EREC_S_API_P5126,
      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: <EREC_S_API_P5126> TYPE EREC_S_API_P5126.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_EREC_S_API_P5126.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM EREC_S_API_P5126
  INTO TABLE IT_EREC_S_API_P5126.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EREC_S_API_P5126
*  INTO TABLE @DATA(IT_EREC_S_API_P51262).
*--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_EREC_S_API_P5126 INDEX 1 INTO DATA(WA_EREC_S_API_P51262).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_EREC_S_API_P5126 ASSIGNING <EREC_S_API_P5126>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EREC_S_API_P5126>-JOBTITLE = 1.
<EREC_S_API_P5126>-INDUSTRY = 1.
<EREC_S_API_P5126>-FUNCTIONAL_AREA = 1.
<EREC_S_API_P5126>-HIERARCHY_LEVEL = 1.
<EREC_S_API_P5126>-BRANCH = 1.

ENDLOOP.

LOOP AT IT_EREC_S_API_P5126 INTO WA_EREC_S_API_P5126.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EREC_S_API_P5126-PAYMENT_INFO, sy-vline,
  WA_EREC_S_API_P5126-CURRENCY, sy-vline,
  WA_EREC_S_API_P5126-SAL_RANGE_ID, sy-vline,
  WA_EREC_S_API_P5126-EMPLOYMENT_FRACTION, sy-vline,
  WA_EREC_S_API_P5126-CONTRACT_TYPE, sy-vline,
  WA_EREC_S_API_P5126-EMPL_START_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EREC_S_API_P5126 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_EREC_S_API_P5126 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_EREC_S_API_P5126 INTO WA_EREC_S_API_P5126.


*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 BRANCH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EREC_S_API_P5126-BRANCH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EREC_S_API_P5126-BRANCH.
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_EREC_S_API_P5126_STR, 
JOBTITLE TYPE STRING,
INDUSTRY TYPE STRING,
FUNCTIONAL_AREA TYPE STRING,
HIERARCHY_LEVEL TYPE STRING,
BRANCH TYPE STRING,
PAYMENT_INFO TYPE STRING,
CURRENCY TYPE STRING,
SAL_RANGE_ID TYPE STRING,
EMPLOYMENT_FRACTION TYPE STRING,
CONTRACT_TYPE TYPE STRING,
EMPL_START_DATE TYPE STRING,
EMPL_END_DATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EREC_S_API_P5126_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_EREC_S_API_P5126_STR-JOBTITLE sy-vline 
WA_EREC_S_API_P5126_STR-INDUSTRY sy-vline 
WA_EREC_S_API_P5126_STR-FUNCTIONAL_AREA sy-vline 
WA_EREC_S_API_P5126_STR-HIERARCHY_LEVEL sy-vline 
WA_EREC_S_API_P5126_STR-BRANCH sy-vline 
WA_EREC_S_API_P5126_STR-PAYMENT_INFO sy-vline 
WA_EREC_S_API_P5126_STR-CURRENCY sy-vline 
WA_EREC_S_API_P5126_STR-SAL_RANGE_ID sy-vline 
WA_EREC_S_API_P5126_STR-EMPLOYMENT_FRACTION sy-vline 
WA_EREC_S_API_P5126_STR-CONTRACT_TYPE sy-vline 
WA_EREC_S_API_P5126_STR-EMPL_START_DATE sy-vline 
WA_EREC_S_API_P5126_STR-EMPL_END_DATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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