ABAP Select data from SAP table CEALE01_A into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CEALE01_A 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 CEALE01_A. 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 CEALE01_A 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_CEALE01_A TYPE STANDARD TABLE OF CEALE01_A,
      WA_CEALE01_A TYPE CEALE01_A,
      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: <CEALE01_A> TYPE CEALE01_A.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CEALE01_A.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CEALE01_A
  INTO TABLE IT_CEALE01_A.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CEALE01_A
*  INTO TABLE @DATA(IT_CEALE01_A2).
*--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_CEALE01_A INDEX 1 INTO DATA(WA_CEALE01_A2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CEALE01_A ASSIGNING <CEALE01_A>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CEALE01_A>-MANDT = 1.
<CEALE01_A>-BELNR = 1.
<CEALE01_A>-POSNR = 1.
<CEALE01_A>-PAOBJNR = 1.
<CEALE01_A>-ERKRS = 1.

ENDLOOP.

LOOP AT IT_CEALE01_A INTO WA_CEALE01_A.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CEALE01_A-PLIKZ, sy-vline,
  WA_CEALE01_A-PALEDGER, sy-vline,
  WA_CEALE01_A-VRGAR, sy-vline,
  WA_CEALE01_A-VERSI, sy-vline,
  WA_CEALE01_A-PERIO, sy-vline,
  WA_CEALE01_A-ALTPERIO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CEALE01_A 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_CEALE01_A 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_CEALE01_A INTO WA_CEALE01_A.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEALE01_A-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEALE01_A-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit LEDBO, internal->external for field PALEDGER
CALL FUNCTION 'CONVERSION_EXIT_LEDBO_OUTPUT'
  EXPORTING
    input =                      WA_CEALE01_A-PALEDGER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEALE01_A-PALEDGER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEALE01_A-VERSI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEALE01_A-VERSI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field PERIO
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_CEALE01_A-PERIO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEALE01_A-PERIO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field ALTPERIO
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_CEALE01_A-ALTPERIO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEALE01_A-ALTPERIO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OBELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEALE01_A-OBELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEALE01_A-OBELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEALE01_A-LOGSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEALE01_A-LOGSYSTEM.
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_CEALE01_A_STR, 
MANDT TYPE STRING,
BELNR TYPE STRING,
POSNR TYPE STRING,
PAOBJNR TYPE STRING,
ERKRS TYPE STRING,
PLIKZ TYPE STRING,
PALEDGER TYPE STRING,
VRGAR TYPE STRING,
VERSI TYPE STRING,
PERIO TYPE STRING,
ALTPERIO TYPE STRING,
PASUBNR TYPE STRING,
LFDNR TYPE STRING,
OPAOBJNR TYPE STRING,
OPASUBNR TYPE STRING,
OBELNR TYPE STRING,
OPOSNR TYPE STRING,
LOGSYSTEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CEALE01_A_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_CEALE01_A_STR-MANDT sy-vline 
WA_CEALE01_A_STR-BELNR sy-vline 
WA_CEALE01_A_STR-POSNR sy-vline 
WA_CEALE01_A_STR-PAOBJNR sy-vline 
WA_CEALE01_A_STR-ERKRS sy-vline 
WA_CEALE01_A_STR-PLIKZ sy-vline 
WA_CEALE01_A_STR-PALEDGER sy-vline 
WA_CEALE01_A_STR-VRGAR sy-vline 
WA_CEALE01_A_STR-VERSI sy-vline 
WA_CEALE01_A_STR-PERIO sy-vline 
WA_CEALE01_A_STR-ALTPERIO sy-vline 
WA_CEALE01_A_STR-PASUBNR sy-vline 
WA_CEALE01_A_STR-LFDNR sy-vline 
WA_CEALE01_A_STR-OPAOBJNR sy-vline 
WA_CEALE01_A_STR-OPASUBNR sy-vline 
WA_CEALE01_A_STR-OBELNR sy-vline 
WA_CEALE01_A_STR-OPOSNR sy-vline 
WA_CEALE01_A_STR-LOGSYSTEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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