ABAP Select data from SAP table EAMS_S_SP_MPLAN_SCHED_PARAM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EAMS_S_SP_MPLAN_SCHED_PARAM
*  INTO TABLE @DATA(IT_EAMS_S_SP_MPLAN_SCHED_PARAM2).
*--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_EAMS_S_SP_MPLAN_SCHED_PARAM INDEX 1 INTO DATA(WA_EAMS_S_SP_MPLAN_SCHED_PARAM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EAMS_S_SP_MPLAN_SCHED_PARAM>-EAMS_WARPL = 1.
<EAMS_S_SP_MPLAN_SCHED_PARAM>-ABRHO = 1.
<EAMS_S_SP_MPLAN_SCHED_PARAM>-VSPOS = 1.
<EAMS_S_SP_MPLAN_SCHED_PARAM>-VSNEG = 1.
<EAMS_S_SP_MPLAN_SCHED_PARAM>-TOPOS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EAMS_S_SP_MPLAN_SCHED_PARAM-TONEG, sy-vline,
  WA_EAMS_S_SP_MPLAN_SCHED_PARAM-SFAKT, sy-vline,
  WA_EAMS_S_SP_MPLAN_SCHED_PARAM-STICH, sy-vline,
  WA_EAMS_S_SP_MPLAN_SCHED_PARAM-TGOON, sy-vline,
  WA_EAMS_S_SP_MPLAN_SCHED_PARAM-HORIZ, sy-vline,
  WA_EAMS_S_SP_MPLAN_SCHED_PARAM-HORIZ_QUALIFIER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EAMS_S_SP_MPLAN_SCHED_PARAM 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_EAMS_S_SP_MPLAN_SCHED_PARAM 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_EAMS_S_SP_MPLAN_SCHED_PARAM INTO WA_EAMS_S_SP_MPLAN_SCHED_PARAM.


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

*Conversion exit EAMQF, internal->external for field HORIZ_QUALIFIER
CALL FUNCTION 'CONVERSION_EXIT_EAMQF_OUTPUT'
  EXPORTING
    input =                      WA_EAMS_S_SP_MPLAN_SCHED_PARAM-HORIZ_QUALIFIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAMS_S_SP_MPLAN_SCHED_PARAM-HORIZ_QUALIFIER.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field EAMS_UNIT_FLOAT_DAYS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EAMS_S_SP_MPLAN_SCHED_PARAM-EAMS_UNIT_FLOAT_DAYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAMS_S_SP_MPLAN_SCHED_PARAM-EAMS_UNIT_FLOAT_DAYS.
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_EAMS_S_SP_MPLAN_SCHED_PARAM_STR, 
EAMS_WARPL TYPE STRING,
ABRHO TYPE STRING,
VSPOS TYPE STRING,
VSNEG TYPE STRING,
TOPOS TYPE STRING,
TONEG TYPE STRING,
SFAKT TYPE STRING,
STICH TYPE STRING,
TGOON TYPE STRING,
HORIZ TYPE STRING,
HORIZ_QUALIFIER TYPE STRING,
EAMS_PERCENT_HORIZ TYPE STRING,
ANDOR TYPE STRING,
HUNIT TYPE STRING,
CALL_CONFIRM TYPE STRING,
FABKL TYPE STRING,
START_DATE TYPE STRING,
START_TIME TYPE STRING,
MCP_SF TYPE STRING,
EAMS_PERCENT TYPE STRING,
PUFFP TYPE STRING,
PUFFN TYPE STRING,
EAMS_UNIT_FLOAT_DAYS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EAMS_S_SP_MPLAN_SCHED_PARAM_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_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-EAMS_WARPL sy-vline 
WA_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-ABRHO sy-vline 
WA_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-VSPOS sy-vline 
WA_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-VSNEG sy-vline 
WA_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-TOPOS sy-vline 
WA_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-TONEG sy-vline 
WA_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-SFAKT sy-vline 
WA_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-STICH sy-vline 
WA_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-TGOON sy-vline 
WA_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-HORIZ sy-vline 
WA_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-HORIZ_QUALIFIER sy-vline 
WA_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-EAMS_PERCENT_HORIZ sy-vline 
WA_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-ANDOR sy-vline 
WA_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-HUNIT sy-vline 
WA_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-CALL_CONFIRM sy-vline 
WA_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-FABKL sy-vline 
WA_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-START_DATE sy-vline 
WA_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-START_TIME sy-vline 
WA_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-MCP_SF sy-vline 
WA_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-EAMS_PERCENT sy-vline 
WA_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-PUFFP sy-vline 
WA_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-PUFFN sy-vline 
WA_EAMS_S_SP_MPLAN_SCHED_PARAM_STR-EAMS_UNIT_FLOAT_DAYS sy-vline      INTO ld_text SEPARATED BY SPACE.

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