ABAP Select data from SAP table /SAPPSSRM/V_CTRL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPPSSRM/V_CTRL 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 /SAPPSSRM/V_CTRL. 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 /SAPPSSRM/V_CTRL 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_/SAPPSSRM/V_CTRL TYPE STANDARD TABLE OF /SAPPSSRM/V_CTRL,
      WA_/SAPPSSRM/V_CTRL TYPE /SAPPSSRM/V_CTRL,
      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: </SAPPSSRM/V_CTRL> TYPE /SAPPSSRM/V_CTRL.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPPSSRM/V_CTRL
  INTO TABLE IT_/SAPPSSRM/V_CTRL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPPSSRM/V_CTRL
*  INTO TABLE @DATA(IT_/SAPPSSRM/V_CTRL2).
*--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_/SAPPSSRM/V_CTRL INDEX 1 INTO DATA(WA_/SAPPSSRM/V_CTRL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPPSSRM/V_CTRL ASSIGNING </SAPPSSRM/V_CTRL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPPSSRM/V_CTRL>-PS_CTRL_KEY_0 = 1.
</SAPPSSRM/V_CTRL>-PS_CTRL_KEY = 1.
</SAPPSSRM/V_CTRL>-AUTOMATIC = 1.
</SAPPSSRM/V_CTRL>-ITM_TYPE = 1.
</SAPPSSRM/V_CTRL>-PRODUCT_TYPE = 1.

ENDLOOP.

LOOP AT IT_/SAPPSSRM/V_CTRL INTO WA_/SAPPSSRM/V_CTRL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPPSSRM/V_CTRL-STATISTIC, sy-vline,
  WA_/SAPPSSRM/V_CTRL-GR_IND, sy-vline,
  WA_/SAPPSSRM/V_CTRL-IR_IND, sy-vline,
  WA_/SAPPSSRM/V_CTRL-GR_BASEDIV, sy-vline,
  WA_/SAPPSSRM/V_CTRL-ACC_CAT, sy-vline,
  WA_/SAPPSSRM/V_CTRL-PSTYP_A, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPPSSRM/V_CTRL 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_/SAPPSSRM/V_CTRL 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_/SAPPSSRM/V_CTRL INTO WA_/SAPPSSRM/V_CTRL.


*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_/SAPPSSRM/V_CTRL_STR, 
PS_CTRL_KEY_0 TYPE STRING,
PS_CTRL_KEY TYPE STRING,
AUTOMATIC TYPE STRING,
ITM_TYPE TYPE STRING,
PRODUCT_TYPE TYPE STRING,
STATISTIC TYPE STRING,
GR_IND TYPE STRING,
IR_IND TYPE STRING,
GR_BASEDIV TYPE STRING,
ACC_CAT TYPE STRING,
PSTYP_A TYPE STRING,
EHTYP TYPE STRING,
SERVPACK TYPE STRING,
SRV_BLANKET TYPE STRING,
SRV_OVF_UNLIM TYPE STRING,
SRV_PRICE_CHG TYPE STRING,
SET_ACC TYPE STRING,
SET_PRICING TYPE STRING,
SET_TEXT TYPE STRING,
SET_PARTNER TYPE STRING,
SET_SCHEDL TYPE STRING,
SET_ATTACHMENTS TYPE STRING,
SOURCING_REL TYPE STRING,
DESCRIPTION TYPE STRING,
SWITCH_ID TYPE STRING,
STATUS_DESCRPT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPPSSRM/V_CTRL_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_/SAPPSSRM/V_CTRL_STR-PS_CTRL_KEY_0 sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-PS_CTRL_KEY sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-AUTOMATIC sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-ITM_TYPE sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-PRODUCT_TYPE sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-STATISTIC sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-GR_IND sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-IR_IND sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-GR_BASEDIV sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-ACC_CAT sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-PSTYP_A sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-EHTYP sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-SERVPACK sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-SRV_BLANKET sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-SRV_OVF_UNLIM sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-SRV_PRICE_CHG sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-SET_ACC sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-SET_PRICING sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-SET_TEXT sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-SET_PARTNER sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-SET_SCHEDL sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-SET_ATTACHMENTS sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-SOURCING_REL sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-DESCRIPTION sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-SWITCH_ID sy-vline 
WA_/SAPPSSRM/V_CTRL_STR-STATUS_DESCRPT sy-vline      INTO ld_text SEPARATED BY SPACE.

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