ABAP Select data from SAP table PC2TSI into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PC2TSI 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 PC2TSI. 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 PC2TSI 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_PC2TSI TYPE STANDARD TABLE OF PC2TSI,
      WA_PC2TSI TYPE PC2TSI,
      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: <PC2TSI> TYPE PC2TSI.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PC2TSI.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PC2TSI
  INTO TABLE IT_PC2TSI.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PC2TSI
*  INTO TABLE @DATA(IT_PC2TSI2).
*--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_PC2TSI INDEX 1 INTO DATA(WA_PC2TSI2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PC2TSI ASSIGNING <PC2TSI>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PC2TSI>-TYPE = 1.
<PC2TSI>-TYPE_IT = 1.
<PC2TSI>-PERNR = 1.
<PC2TSI>-PERNC = 1.
<PC2TSI>-CBUSN = 1.

ENDLOOP.

LOOP AT IT_PC2TSI INTO WA_PC2TSI.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PC2TSI-QCTXI, sy-vline,
  WA_PC2TSI-WRKAR, sy-vline,
  WA_PC2TSI-PVTAX, sy-vline,
  WA_PC2TSI-CNTR1, sy-vline,
  WA_PC2TSI-GR0, sy-vline,
  WA_PC2TSI-GR1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PC2TSI 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_PC2TSI 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_PC2TSI INTO WA_PC2TSI.


*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_PC2TSI_STR, 
TYPE TYPE STRING,
TYPE_IT TYPE STRING,
PERNR TYPE STRING,
PERNC TYPE STRING,
CBUSN TYPE STRING,
QCTXI TYPE STRING,
WRKAR TYPE STRING,
PVTAX TYPE STRING,
CNTR1 TYPE STRING,
GR0 TYPE STRING,
GR1 TYPE STRING,
EX1 TYPE STRING,
EX1_PTD TYPE STRING,
TEE TYPE STRING,
TEE_PTD TYPE STRING,
TEE_YTD TYPE STRING,
TEE_WT TYPE STRING,
TER TYPE STRING,
TER_WT TYPE STRING,
GRS_YTD TYPE STRING,
GRS_PTD TYPE STRING,
TER_PTD TYPE STRING,
TER_YTD TYPE STRING,
EI_CALC_YTD TYPE STRING,
EI_NQC_YTD TYPE STRING,
EI_NQC_PTD TYPE STRING,
TPP_YTD TYPE STRING,
TPP_PTD TYPE STRING,
TPP TYPE STRING,
AER TYPE STRING,
AER_WT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PC2TSI_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_PC2TSI_STR-TYPE sy-vline 
WA_PC2TSI_STR-TYPE_IT sy-vline 
WA_PC2TSI_STR-PERNR sy-vline 
WA_PC2TSI_STR-PERNC sy-vline 
WA_PC2TSI_STR-CBUSN sy-vline 
WA_PC2TSI_STR-QCTXI sy-vline 
WA_PC2TSI_STR-WRKAR sy-vline 
WA_PC2TSI_STR-PVTAX sy-vline 
WA_PC2TSI_STR-CNTR1 sy-vline 
WA_PC2TSI_STR-GR0 sy-vline 
WA_PC2TSI_STR-GR1 sy-vline 
WA_PC2TSI_STR-EX1 sy-vline 
WA_PC2TSI_STR-EX1_PTD sy-vline 
WA_PC2TSI_STR-TEE sy-vline 
WA_PC2TSI_STR-TEE_PTD sy-vline 
WA_PC2TSI_STR-TEE_YTD sy-vline 
WA_PC2TSI_STR-TEE_WT sy-vline 
WA_PC2TSI_STR-TER sy-vline 
WA_PC2TSI_STR-TER_WT sy-vline 
WA_PC2TSI_STR-GRS_YTD sy-vline 
WA_PC2TSI_STR-GRS_PTD sy-vline 
WA_PC2TSI_STR-TER_PTD sy-vline 
WA_PC2TSI_STR-TER_YTD sy-vline 
WA_PC2TSI_STR-EI_CALC_YTD sy-vline 
WA_PC2TSI_STR-EI_NQC_YTD sy-vline 
WA_PC2TSI_STR-EI_NQC_PTD sy-vline 
WA_PC2TSI_STR-TPP_YTD sy-vline 
WA_PC2TSI_STR-TPP_PTD sy-vline 
WA_PC2TSI_STR-TPP sy-vline 
WA_PC2TSI_STR-AER sy-vline 
WA_PC2TSI_STR-AER_WT sy-vline      INTO ld_text SEPARATED BY SPACE.

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