ABAP Select data from SAP table AEEF_API01 into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP AEEF_API01 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 AEEF_API01. 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 AEEF_API01 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_AEEF_API01 TYPE STANDARD TABLE OF AEEF_API01,
      WA_AEEF_API01 TYPE AEEF_API01,
      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: <AEEF_API01> TYPE AEEF_API01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_AEEF_API01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM AEEF_API01
  INTO TABLE IT_AEEF_API01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AEEF_API01
*  INTO TABLE @DATA(IT_AEEF_API012).
*--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_AEEF_API01 INDEX 1 INTO DATA(WA_AEEF_API012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_AEEF_API01 ASSIGNING <AEEF_API01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AEEF_API01>-VALID_FROM = 1.
<AEEF_API01>-VALID_TO = 1.
<AEEF_API01>-DATE_MARK = 1.
<AEEF_API01>-MATERIAL = 1.
<AEEF_API01>-SERIALNR_LOW = 1.

ENDLOOP.

LOOP AT IT_AEEF_API01 INTO WA_AEEF_API01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AEEF_API01-SERIALNR_HIGH, sy-vline,
  WA_AEEF_API01-PRODUCT, sy-vline,
  WA_AEEF_API01-CLASS, sy-vline,
  WA_AEEF_API01-CLASSTY, sy-vline,
  WA_AEEF_API01-STARTUP, sy-vline,
  WA_AEEF_API01-PLANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AEEF_API01 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_AEEF_API01 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_AEEF_API01 INTO WA_AEEF_API01.


*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 CCMAT, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_CCMAT_OUTPUT'
  EXPORTING
    input =                      WA_AEEF_API01-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AEEF_API01-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SERIALNR_LOW
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AEEF_API01-SERIALNR_LOW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AEEF_API01-SERIALNR_LOW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SERIALNR_HIGH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AEEF_API01-SERIALNR_HIGH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AEEF_API01-SERIALNR_HIGH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CCPRD, internal->external for field PRODUCT
CALL FUNCTION 'CONVERSION_EXIT_CCPRD_OUTPUT'
  EXPORTING
    input =                      WA_AEEF_API01-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AEEF_API01-PRODUCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field STARTUP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AEEF_API01-STARTUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AEEF_API01-STARTUP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CCLOC, internal->external for field LOCNO
CALL FUNCTION 'CONVERSION_EXIT_CCLOC_OUTPUT'
  EXPORTING
    input =                      WA_AEEF_API01-LOCNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AEEF_API01-LOCNO.
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_AEEF_API01_STR, 
VALID_FROM TYPE STRING,
VALID_TO TYPE STRING,
DATE_MARK TYPE STRING,
MATERIAL TYPE STRING,
SERIALNR_LOW TYPE STRING,
SERIALNR_HIGH TYPE STRING,
PRODUCT TYPE STRING,
CLASS TYPE STRING,
CLASSTY TYPE STRING,
STARTUP TYPE STRING,
PLANT TYPE STRING,
LOCNO TYPE STRING,
SERNR_OI TYPE STRING,
FL_DELETE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AEEF_API01_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_AEEF_API01_STR-VALID_FROM sy-vline 
WA_AEEF_API01_STR-VALID_TO sy-vline 
WA_AEEF_API01_STR-DATE_MARK sy-vline 
WA_AEEF_API01_STR-MATERIAL sy-vline 
WA_AEEF_API01_STR-SERIALNR_LOW sy-vline 
WA_AEEF_API01_STR-SERIALNR_HIGH sy-vline 
WA_AEEF_API01_STR-PRODUCT sy-vline 
WA_AEEF_API01_STR-CLASS sy-vline 
WA_AEEF_API01_STR-CLASSTY sy-vline 
WA_AEEF_API01_STR-STARTUP sy-vline 
WA_AEEF_API01_STR-PLANT sy-vline 
WA_AEEF_API01_STR-LOCNO sy-vline 
WA_AEEF_API01_STR-SERNR_OI sy-vline 
WA_AEEF_API01_STR-FL_DELETE sy-vline      INTO ld_text SEPARATED BY SPACE.

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