ABAP Select data from SAP table KKEA1 into internal table



Get Example source ABAP code based on a different SAP table
  

Below is a number of ABAP code snippets to demonstrate how to select data from SAP KKEA1 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 KKEA1. 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 KKEA1 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_KKEA1 TYPE STANDARD TABLE OF KKEA1,
      WA_KKEA1 TYPE KKEA1,
      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: <KKEA1> TYPE KKEA1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_KKEA1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM KKEA1
  INTO TABLE IT_KKEA1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KKEA1
*  INTO TABLE @DATA(IT_KKEA12).
*--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_KKEA1 INDEX 1 INTO DATA(WA_KKEA12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_KKEA1 ASSIGNING <KKEA1>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<KKEA1>-KLVAR = 1.
<KKEA1>-KOAKNZ = 1.
<KKEA1>-WAEKNZ = 1.
<KKEA1>-VRGGRP = 1.
<KKEA1>-KTOPL = 1.
ENDLOOP.

LOOP AT IT_KKEA1 INTO WA_KKEA1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KKEA1-ELEHK, sy-vline,
WA_KKEA1-ELEHKNS, sy-vline,
WA_KKEA1-LOBEZUS, sy-vline,
WA_KKEA1-REFID, sy-vline,
WA_KKEA1-TPVAR, sy-vline,
WA_KKEA1-KALSM_RAW, sy-vline.
ENDLOOP. *Add any further fields from structure WA_KKEA1 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_KKEA1 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_KKEA1 INTO WA_KKEA1. *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 TPVAR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_KKEA1-TPVAR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_KKEA1-TPVAR.
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_KKEA1_STR,
KLVAR TYPE STRING,
KOAKNZ TYPE STRING,
WAEKNZ TYPE STRING,
VRGGRP TYPE STRING,
KTOPL TYPE STRING,
ELEHK TYPE STRING,
ELEHKNS TYPE STRING,
LOBEZUS TYPE STRING,
REFID TYPE STRING,
TPVAR TYPE STRING,
KALSM_RAW TYPE STRING,END OF T_EKKO_STR. DATA: WA_KKEA1_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_KKEA1_STR-KLVAR sy-vline
WA_KKEA1_STR-KOAKNZ sy-vline
WA_KKEA1_STR-WAEKNZ sy-vline
WA_KKEA1_STR-VRGGRP sy-vline
WA_KKEA1_STR-KTOPL sy-vline
WA_KKEA1_STR-ELEHK sy-vline
WA_KKEA1_STR-ELEHKNS sy-vline
WA_KKEA1_STR-LOBEZUS sy-vline
WA_KKEA1_STR-REFID sy-vline
WA_KKEA1_STR-TPVAR sy-vline
WA_KKEA1_STR-KALSM_RAW sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.