ABAP Select data from SAP table AQDBLF 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 AQDBLF 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 AQDBLF. 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 AQDBLF 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_AQDBLF TYPE STANDARD TABLE OF AQDBLF,
      WA_AQDBLF TYPE AQDBLF,
      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: <AQDBLF> TYPE AQDBLF.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AQDBLF
*  INTO TABLE @DATA(IT_AQDBLF2).
*--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_AQDBLF INDEX 1 INTO DATA(WA_AQDBLF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_AQDBLF ASSIGNING <AQDBLF>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<AQDBLF>-NUMB = 1.
<AQDBLF>-IKNAME = 1.
<AQDBLF>-SGNA = 1.
<AQDBLF>-NAME = 1.
<AQDBLF>-TINDX = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AQDBLF-TINDXU1, sy-vline,
WA_AQDBLF-TINDXU2, sy-vline,
WA_AQDBLF-REFIKNAME, sy-vline,
WA_AQDBLF-REFSGNA, sy-vline,
WA_AQDBLF-REFNAME, sy-vline,
WA_AQDBLF-TYPE, sy-vline.
ENDLOOP. *Add any further fields from structure WA_AQDBLF 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_AQDBLF 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_AQDBLF INTO WA_AQDBLF. *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_AQDBLF_STR,
NUMB TYPE STRING,
IKNAME TYPE STRING,
SGNA TYPE STRING,
NAME TYPE STRING,
TINDX TYPE STRING,
TINDXU1 TYPE STRING,
TINDXU2 TYPE STRING,
REFIKNAME TYPE STRING,
REFSGNA TYPE STRING,
REFNAME TYPE STRING,
TYPE TYPE STRING,
CHARNUM TYPE STRING,
OLENG TYPE STRING,
DECIMALS TYPE STRING,
CURRY TYPE STRING,
ORDER TYPE STRING,
INPUT TYPE STRING,
GTYPE TYPE STRING,
OBLIGATORY TYPE STRING,END OF T_EKKO_STR. DATA: WA_AQDBLF_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_AQDBLF_STR-NUMB sy-vline
WA_AQDBLF_STR-IKNAME sy-vline
WA_AQDBLF_STR-SGNA sy-vline
WA_AQDBLF_STR-NAME sy-vline
WA_AQDBLF_STR-TINDX sy-vline
WA_AQDBLF_STR-TINDXU1 sy-vline
WA_AQDBLF_STR-TINDXU2 sy-vline
WA_AQDBLF_STR-REFIKNAME sy-vline
WA_AQDBLF_STR-REFSGNA sy-vline
WA_AQDBLF_STR-REFNAME sy-vline
WA_AQDBLF_STR-TYPE sy-vline
WA_AQDBLF_STR-CHARNUM sy-vline
WA_AQDBLF_STR-OLENG sy-vline
WA_AQDBLF_STR-DECIMALS sy-vline
WA_AQDBLF_STR-CURRY sy-vline
WA_AQDBLF_STR-ORDER sy-vline
WA_AQDBLF_STR-INPUT sy-vline
WA_AQDBLF_STR-GTYPE sy-vline
WA_AQDBLF_STR-OBLIGATORY sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.