ABAP Select data from SAP table /AIF/T_INF_MKFLD 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 /AIF/T_INF_MKFLD 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 /AIF/T_INF_MKFLD. 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 /AIF/T_INF_MKFLD 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_/AIF/T_INF_MKFLD TYPE STANDARD TABLE OF /AIF/T_INF_MKFLD,
      WA_/AIF/T_INF_MKFLD TYPE /AIF/T_INF_MKFLD,
      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: </AIF/T_INF_MKFLD> TYPE /AIF/T_INF_MKFLD.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /AIF/T_INF_MKFLD
  INTO TABLE IT_/AIF/T_INF_MKFLD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /AIF/T_INF_MKFLD
*  INTO TABLE @DATA(IT_/AIF/T_INF_MKFLD2).
*--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_/AIF/T_INF_MKFLD INDEX 1 INTO DATA(WA_/AIF/T_INF_MKFLD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/AIF/T_INF_MKFLD ASSIGNING </AIF/T_INF_MKFLD>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
</AIF/T_INF_MKFLD>-MANDT = 1.
</AIF/T_INF_MKFLD>-NS = 1.
</AIF/T_INF_MKFLD>-IFNAME = 1.
</AIF/T_INF_MKFLD>-IFVER = 1.
</AIF/T_INF_MKFLD>-FIELDNR = 1.
ENDLOOP.

LOOP AT IT_/AIF/T_INF_MKFLD INTO WA_/AIF/T_INF_MKFLD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/AIF/T_INF_MKFLD-FIELDNAME, sy-vline,
WA_/AIF/T_INF_MKFLD-REF_NAME, sy-vline,
WA_/AIF/T_INF_MKFLD-SP_FIELDNR, sy-vline,
WA_/AIF/T_INF_MKFLD-SP_NAME, sy-vline,
WA_/AIF/T_INF_MKFLD-SP_IS_SEL_OPT, sy-vline,
WA_/AIF/T_INF_MKFLD-WEIGHTING, sy-vline.
ENDLOOP. *Add any further fields from structure WA_/AIF/T_INF_MKFLD 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_/AIF/T_INF_MKFLD 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_/AIF/T_INF_MKFLD INTO WA_/AIF/T_INF_MKFLD. *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_/AIF/T_INF_MKFLD_STR,
MANDT TYPE STRING,
NS TYPE STRING,
IFNAME TYPE STRING,
IFVER TYPE STRING,
FIELDNR TYPE STRING,
FIELDNAME TYPE STRING,
REF_NAME TYPE STRING,
SP_FIELDNR TYPE STRING,
SP_NAME TYPE STRING,
SP_IS_SEL_OPT TYPE STRING,
WEIGHTING TYPE STRING,
AIF_FIELDNAME TYPE STRING,
RAW_OR_SAP TYPE STRING,
IDX_TABLE TYPE STRING,END OF T_EKKO_STR. DATA: WA_/AIF/T_INF_MKFLD_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_/AIF/T_INF_MKFLD_STR-MANDT sy-vline
WA_/AIF/T_INF_MKFLD_STR-NS sy-vline
WA_/AIF/T_INF_MKFLD_STR-IFNAME sy-vline
WA_/AIF/T_INF_MKFLD_STR-IFVER sy-vline
WA_/AIF/T_INF_MKFLD_STR-FIELDNR sy-vline
WA_/AIF/T_INF_MKFLD_STR-FIELDNAME sy-vline
WA_/AIF/T_INF_MKFLD_STR-REF_NAME sy-vline
WA_/AIF/T_INF_MKFLD_STR-SP_FIELDNR sy-vline
WA_/AIF/T_INF_MKFLD_STR-SP_NAME sy-vline
WA_/AIF/T_INF_MKFLD_STR-SP_IS_SEL_OPT sy-vline
WA_/AIF/T_INF_MKFLD_STR-WEIGHTING sy-vline
WA_/AIF/T_INF_MKFLD_STR-AIF_FIELDNAME sy-vline
WA_/AIF/T_INF_MKFLD_STR-RAW_OR_SAP sy-vline
WA_/AIF/T_INF_MKFLD_STR-IDX_TABLE sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.