ABAP Select data from SAP table SI_GLPCA_CT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SI_GLPCA_CT
*  INTO TABLE @DATA(IT_SI_GLPCA_CT2).
*--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_SI_GLPCA_CT INDEX 1 INTO DATA(WA_SI_GLPCA_CT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SI_GLPCA_CT>-RLDNR = 1.
<SI_GLPCA_CT>-RPRCTR = 1.
<SI_GLPCA_CT>-SPRCTR = 1.
<SI_GLPCA_CT>-RBUKRS = 1.
<SI_GLPCA_CT>-BLDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SI_GLPCA_CT-BUDAT, sy-vline,
  WA_SI_GLPCA_CT-DRCRK, sy-vline,
  WA_SI_GLPCA_CT-RTCUR, sy-vline,
  WA_SI_GLPCA_CT-RYEAR, sy-vline,
  WA_SI_GLPCA_CT-POPER, sy-vline,
  WA_SI_GLPCA_CT-RACCT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SI_GLPCA_CT 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_SI_GLPCA_CT 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_SI_GLPCA_CT INTO WA_SI_GLPCA_CT.


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

*Conversion exit ALPHA, internal->external for field RPRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SI_GLPCA_CT-RPRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_GLPCA_CT-RPRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SPRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SI_GLPCA_CT-SPRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_GLPCA_CT-SPRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field RYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_SI_GLPCA_CT-RYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_GLPCA_CT-RYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RACCT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SI_GLPCA_CT-RACCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_GLPCA_CT-RACCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field QUANUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_SI_GLPCA_CT-QUANUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_GLPCA_CT-QUANUNIT.
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_SI_GLPCA_CT_STR, 
RLDNR TYPE STRING,
RPRCTR TYPE STRING,
SPRCTR TYPE STRING,
RBUKRS TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
DRCRK TYPE STRING,
RTCUR TYPE STRING,
RYEAR TYPE STRING,
POPER TYPE STRING,
RACCT TYPE STRING,
DEBIT TYPE STRING,
CREDIT TYPE STRING,
TURNOVER TYPE STRING,
COUNTER TYPE STRING,
CURTP TYPE STRING,
CURRUNIT TYPE STRING,
QUANTITY TYPE STRING,
QUANUNIT TYPE STRING,
CURRKEY_00 TYPE STRING,
CURRVAL_00 TYPE STRING,
CURRKEY_10 TYPE STRING,
CURRVAL_10 TYPE STRING,
CURRKEY_11 TYPE STRING,
CURRVAL_11 TYPE STRING,
CURRKEY_12 TYPE STRING,
CURRVAL_12 TYPE STRING,
CURRKEY_20 TYPE STRING,
CURRVAL_20 TYPE STRING,
CURRKEY_21 TYPE STRING,
CURRVAL_21 TYPE STRING,
CURRKEY_22 TYPE STRING,
CURRVAL_22 TYPE STRING,
CURRKEY_30 TYPE STRING,
CURRVAL_30 TYPE STRING,
CURRKEY_31 TYPE STRING,
CURRVAL_31 TYPE STRING,
CURRKEY_32 TYPE STRING,
CURRVAL_32 TYPE STRING,
CURRKEY_90 TYPE STRING,
CURRVAL_90 TYPE STRING,
CURRKEY_91 TYPE STRING,
CURRVAL_91 TYPE STRING,
CURRKEY_92 TYPE STRING,
CURRVAL_92 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SI_GLPCA_CT_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_SI_GLPCA_CT_STR-RLDNR sy-vline 
WA_SI_GLPCA_CT_STR-RPRCTR sy-vline 
WA_SI_GLPCA_CT_STR-SPRCTR sy-vline 
WA_SI_GLPCA_CT_STR-RBUKRS sy-vline 
WA_SI_GLPCA_CT_STR-BLDAT sy-vline 
WA_SI_GLPCA_CT_STR-BUDAT sy-vline 
WA_SI_GLPCA_CT_STR-DRCRK sy-vline 
WA_SI_GLPCA_CT_STR-RTCUR sy-vline 
WA_SI_GLPCA_CT_STR-RYEAR sy-vline 
WA_SI_GLPCA_CT_STR-POPER sy-vline 
WA_SI_GLPCA_CT_STR-RACCT sy-vline 
WA_SI_GLPCA_CT_STR-DEBIT sy-vline 
WA_SI_GLPCA_CT_STR-CREDIT sy-vline 
WA_SI_GLPCA_CT_STR-TURNOVER sy-vline 
WA_SI_GLPCA_CT_STR-COUNTER sy-vline 
WA_SI_GLPCA_CT_STR-CURTP sy-vline 
WA_SI_GLPCA_CT_STR-CURRUNIT sy-vline 
WA_SI_GLPCA_CT_STR-QUANTITY sy-vline 
WA_SI_GLPCA_CT_STR-QUANUNIT sy-vline 
WA_SI_GLPCA_CT_STR-CURRKEY_00 sy-vline 
WA_SI_GLPCA_CT_STR-CURRVAL_00 sy-vline 
WA_SI_GLPCA_CT_STR-CURRKEY_10 sy-vline 
WA_SI_GLPCA_CT_STR-CURRVAL_10 sy-vline 
WA_SI_GLPCA_CT_STR-CURRKEY_11 sy-vline 
WA_SI_GLPCA_CT_STR-CURRVAL_11 sy-vline 
WA_SI_GLPCA_CT_STR-CURRKEY_12 sy-vline 
WA_SI_GLPCA_CT_STR-CURRVAL_12 sy-vline 
WA_SI_GLPCA_CT_STR-CURRKEY_20 sy-vline 
WA_SI_GLPCA_CT_STR-CURRVAL_20 sy-vline 
WA_SI_GLPCA_CT_STR-CURRKEY_21 sy-vline 
WA_SI_GLPCA_CT_STR-CURRVAL_21 sy-vline 
WA_SI_GLPCA_CT_STR-CURRKEY_22 sy-vline 
WA_SI_GLPCA_CT_STR-CURRVAL_22 sy-vline 
WA_SI_GLPCA_CT_STR-CURRKEY_30 sy-vline 
WA_SI_GLPCA_CT_STR-CURRVAL_30 sy-vline 
WA_SI_GLPCA_CT_STR-CURRKEY_31 sy-vline 
WA_SI_GLPCA_CT_STR-CURRVAL_31 sy-vline 
WA_SI_GLPCA_CT_STR-CURRKEY_32 sy-vline 
WA_SI_GLPCA_CT_STR-CURRVAL_32 sy-vline 
WA_SI_GLPCA_CT_STR-CURRKEY_90 sy-vline 
WA_SI_GLPCA_CT_STR-CURRVAL_90 sy-vline 
WA_SI_GLPCA_CT_STR-CURRKEY_91 sy-vline 
WA_SI_GLPCA_CT_STR-CURRVAL_91 sy-vline 
WA_SI_GLPCA_CT_STR-CURRKEY_92 sy-vline 
WA_SI_GLPCA_CT_STR-CURRVAL_92 sy-vline      INTO ld_text SEPARATED BY SPACE.

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