ABAP Select data from SAP table PPINT_WORK_CENTER_HEADER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPINT_WORK_CENTER_HEADER
*  INTO TABLE @DATA(IT_PPINT_WORK_CENTER_HEADER2).
*--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_PPINT_WORK_CENTER_HEADER INDEX 1 INTO DATA(WA_PPINT_WORK_CENTER_HEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPINT_WORK_CENTER_HEADER>-CONTROLLER = 1.
<PPINT_WORK_CENTER_HEADER>-WORK_CENTER_ID = 1.
<PPINT_WORK_CENTER_HEADER>-PLANT = 1.
<PPINT_WORK_CENTER_HEADER>-WORK_CENTER_INTERNAL_ID = 1.
<PPINT_WORK_CENTER_HEADER>-WORK_CENTER_TYPE_CODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPINT_WORK_CENTER_HEADER-WORK_CENTER_CATEGORY_CODE, sy-vline,
  WA_PPINT_WORK_CENTER_HEADER-VALIDITY_START_DATE, sy-vline,
  WA_PPINT_WORK_CENTER_HEADER-VALIDITY_END_DATE, sy-vline,
  WA_PPINT_WORK_CENTER_HEADER-WORK_CENTER_RESPONSIBLE, sy-vline,
  WA_PPINT_WORK_CENTER_HEADER-WORK_CENTER_LOCATION, sy-vline,
  WA_PPINT_WORK_CENTER_HEADER-SUPPLY_AREA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPINT_WORK_CENTER_HEADER 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_PPINT_WORK_CENTER_HEADER 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_PPINT_WORK_CENTER_HEADER INTO WA_PPINT_WORK_CENTER_HEADER.


*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_PPINT_WORK_CENTER_HEADER_STR, 
CONTROLLER TYPE STRING,
WORK_CENTER_ID TYPE STRING,
PLANT TYPE STRING,
WORK_CENTER_INTERNAL_ID TYPE STRING,
WORK_CENTER_TYPE_CODE TYPE STRING,
WORK_CENTER_CATEGORY_CODE TYPE STRING,
VALIDITY_START_DATE TYPE STRING,
VALIDITY_END_DATE TYPE STRING,
WORK_CENTER_RESPONSIBLE TYPE STRING,
WORK_CENTER_LOCATION TYPE STRING,
SUPPLY_AREA TYPE STRING,
WORK_CENTER_USAGE TYPE STRING,
WORK_CENTER_IS_TO_BE_DELETED TYPE STRING,
MATL_COMP_IS_MARKED_FOR_BACKFL TYPE STRING,
STANDARD_WRK_FMLA_PARAM_GROUP TYPE STRING,
WRK_CTR_STD_VAL_MAINT_RULE1 TYPE STRING,
WRK_CTR_STD_VAL_MAINT_RULE2 TYPE STRING,
WRK_CTR_STD_VAL_MAINT_RULE3 TYPE STRING,
WRK_CTR_STD_VAL_MAINT_RULE4 TYPE STRING,
WRK_CTR_STD_VAL_MAINT_RULE5 TYPE STRING,
WRK_CTR_STD_VAL_MAINT_RULE6 TYPE STRING,
OPERATION_CONTROL_PROFILE TYPE STRING,
WRK_CTR_STANDARD_WRK_QTY_UNIT1 TYPE STRING,
WRK_CTR_STANDARD_WRK_QTY_UNIT2 TYPE STRING,
WRK_CTR_STANDARD_WRK_QTY_UNIT3 TYPE STRING,
WRK_CTR_STANDARD_WRK_QTY_UNIT4 TYPE STRING,
WRK_CTR_STANDARD_WRK_QTY_UNIT5 TYPE STRING,
WRK_CTR_STANDARD_WRK_QTY_UNIT6 TYPE STRING,
WORK_CENTER_FORMULA_PARAM1 TYPE STRING,
WORK_CENTER_FORMULA_PARAM2 TYPE STRING,
WORK_CENTER_FORMULA_PARAM3 TYPE STRING,
WORK_CENTER_FORMULA_PARAM4 TYPE STRING,
WORK_CENTER_FORMULA_PARAM5 TYPE STRING,
WORK_CENTER_FORMULA_PARAM6 TYPE STRING,
WORK_CENTER_FMLA_PARAM_VALUE1 TYPE STRING,
CONTROLLER TYPE STRING,
UNIT_CODE TYPE STRING,
CONTENT TYPE STRING,
WORK_CENTER_FMLA_PARAM_VALUE2 TYPE STRING,
CONTROLLER TYPE STRING,
UNIT_CODE TYPE STRING,
CONTENT TYPE STRING,
WORK_CENTER_FMLA_PARAM_VALUE3 TYPE STRING,
CONTROLLER TYPE STRING,
UNIT_CODE TYPE STRING,
CONTENT TYPE STRING,
WORK_CENTER_FMLA_PARAM_VALUE4 TYPE STRING,
CONTROLLER TYPE STRING,
UNIT_CODE TYPE STRING,
CONTENT TYPE STRING,
WORK_CENTER_FMLA_PARAM_VALUE5 TYPE STRING,
CONTROLLER TYPE STRING,
UNIT_CODE TYPE STRING,
CONTENT TYPE STRING,
WORK_CENTER_FMLA_PARAM_VALUE6 TYPE STRING,
CONTROLLER TYPE STRING,
UNIT_CODE TYPE STRING,
CONTENT TYPE STRING,
CAPACITY_INTERNAL_ID TYPE STRING,
WRK_CTR_SETUP_SCHEDG_FMLA TYPE STRING,
WRK_CTR_PROCG_SCHEDG_FMLA TYPE STRING,
WRK_CTR_TEARDOWN_SCHEDG_FMLA TYPE STRING,
WRK_CTR_INT_PROCG_SCHEDG_FMLA TYPE STRING,
WORK_CENTER_LOCATION_GROUP TYPE STRING,
WORK_CENTER_DESCRIPTION TYPE STRING,
ACTION_CODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPINT_WORK_CENTER_HEADER_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_PPINT_WORK_CENTER_HEADER_STR-CONTROLLER sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WORK_CENTER_ID sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-PLANT sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WORK_CENTER_INTERNAL_ID sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WORK_CENTER_TYPE_CODE sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WORK_CENTER_CATEGORY_CODE sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-VALIDITY_START_DATE sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-VALIDITY_END_DATE sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WORK_CENTER_RESPONSIBLE sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WORK_CENTER_LOCATION sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-SUPPLY_AREA sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WORK_CENTER_USAGE sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WORK_CENTER_IS_TO_BE_DELETED sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-MATL_COMP_IS_MARKED_FOR_BACKFL sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-STANDARD_WRK_FMLA_PARAM_GROUP sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WRK_CTR_STD_VAL_MAINT_RULE1 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WRK_CTR_STD_VAL_MAINT_RULE2 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WRK_CTR_STD_VAL_MAINT_RULE3 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WRK_CTR_STD_VAL_MAINT_RULE4 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WRK_CTR_STD_VAL_MAINT_RULE5 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WRK_CTR_STD_VAL_MAINT_RULE6 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-OPERATION_CONTROL_PROFILE sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WRK_CTR_STANDARD_WRK_QTY_UNIT1 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WRK_CTR_STANDARD_WRK_QTY_UNIT2 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WRK_CTR_STANDARD_WRK_QTY_UNIT3 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WRK_CTR_STANDARD_WRK_QTY_UNIT4 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WRK_CTR_STANDARD_WRK_QTY_UNIT5 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WRK_CTR_STANDARD_WRK_QTY_UNIT6 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WORK_CENTER_FORMULA_PARAM1 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WORK_CENTER_FORMULA_PARAM2 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WORK_CENTER_FORMULA_PARAM3 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WORK_CENTER_FORMULA_PARAM4 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WORK_CENTER_FORMULA_PARAM5 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WORK_CENTER_FORMULA_PARAM6 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WORK_CENTER_FMLA_PARAM_VALUE1 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-CONTROLLER sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-UNIT_CODE sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-CONTENT sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WORK_CENTER_FMLA_PARAM_VALUE2 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-CONTROLLER sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-UNIT_CODE sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-CONTENT sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WORK_CENTER_FMLA_PARAM_VALUE3 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-CONTROLLER sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-UNIT_CODE sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-CONTENT sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WORK_CENTER_FMLA_PARAM_VALUE4 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-CONTROLLER sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-UNIT_CODE sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-CONTENT sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WORK_CENTER_FMLA_PARAM_VALUE5 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-CONTROLLER sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-UNIT_CODE sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-CONTENT sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WORK_CENTER_FMLA_PARAM_VALUE6 sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-CONTROLLER sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-UNIT_CODE sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-CONTENT sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-CAPACITY_INTERNAL_ID sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WRK_CTR_SETUP_SCHEDG_FMLA sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WRK_CTR_PROCG_SCHEDG_FMLA sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WRK_CTR_TEARDOWN_SCHEDG_FMLA sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WRK_CTR_INT_PROCG_SCHEDG_FMLA sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WORK_CENTER_LOCATION_GROUP sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-WORK_CENTER_DESCRIPTION sy-vline 
WA_PPINT_WORK_CENTER_HEADER_STR-ACTION_CODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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