ABAP Select data from SAP table FLQPARA 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 FLQPARA 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 FLQPARA. 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 FLQPARA 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_FLQPARA TYPE STANDARD TABLE OF FLQPARA,
      WA_FLQPARA TYPE FLQPARA,
      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: <FLQPARA> TYPE FLQPARA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FLQPARA
*  INTO TABLE @DATA(IT_FLQPARA2).
*--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_FLQPARA INDEX 1 INTO DATA(WA_FLQPARA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FLQPARA>-NO_ZERO = 1.
<FLQPARA>-LISTE = 1.
<FLQPARA>-NO_CHECK = 1.
<FLQPARA>-TAKE_NEW = 1.
<FLQPARA>-TAKE_OLD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FLQPARA-HKONT_R, sy-vline,
  WA_FLQPARA-LQPOS_BUF, sy-vline,
  WA_FLQPARA-PERCENTAGE, sy-vline,
  WA_FLQPARA-TCURR, sy-vline,
  WA_FLQPARA-IBLART, sy-vline,
  WA_FLQPARA-EXIT_ASGN_FI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FLQPARA 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_FLQPARA 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_FLQPARA INTO WA_FLQPARA.


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

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

*Conversion exit ALPHA, internal->external for field LQPOS_BAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FLQPARA-LQPOS_BAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FLQPARA-LQPOS_BAL.
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_FLQPARA_STR, 
NO_ZERO TYPE STRING,
LISTE TYPE STRING,
NO_CHECK TYPE STRING,
TAKE_NEW TYPE STRING,
TAKE_OLD TYPE STRING,
HKONT_R TYPE STRING,
LQPOS_BUF TYPE STRING,
PERCENTAGE TYPE STRING,
TCURR TYPE STRING,
IBLART TYPE STRING,
EXIT_ASGN_FI TYPE STRING,
EXIT_ASGN_REX TYPE STRING,
EXIT_ASGN_BS TYPE STRING,
EXIT_ASGN_EX TYPE STRING,
ONE_STEP TYPE STRING,
TWO_STEP_INV TYPE STRING,
TWO_STEP_REX TYPE STRING,
TWO_STEP_EXIT TYPE STRING,
LQORIG_NEW TYPE STRING,
LIMIT_REC TYPE STRING,
LIMIT_ACT TYPE STRING,
LIMIT_PRD TYPE STRING,
LQPOS_BAL TYPE STRING,
ALISTE TYPE STRING,
NLISTE TYPE STRING,
ASGN_FUNC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FLQPARA_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_FLQPARA_STR-NO_ZERO sy-vline 
WA_FLQPARA_STR-LISTE sy-vline 
WA_FLQPARA_STR-NO_CHECK sy-vline 
WA_FLQPARA_STR-TAKE_NEW sy-vline 
WA_FLQPARA_STR-TAKE_OLD sy-vline 
WA_FLQPARA_STR-HKONT_R sy-vline 
WA_FLQPARA_STR-LQPOS_BUF sy-vline 
WA_FLQPARA_STR-PERCENTAGE sy-vline 
WA_FLQPARA_STR-TCURR sy-vline 
WA_FLQPARA_STR-IBLART sy-vline 
WA_FLQPARA_STR-EXIT_ASGN_FI sy-vline 
WA_FLQPARA_STR-EXIT_ASGN_REX sy-vline 
WA_FLQPARA_STR-EXIT_ASGN_BS sy-vline 
WA_FLQPARA_STR-EXIT_ASGN_EX sy-vline 
WA_FLQPARA_STR-ONE_STEP sy-vline 
WA_FLQPARA_STR-TWO_STEP_INV sy-vline 
WA_FLQPARA_STR-TWO_STEP_REX sy-vline 
WA_FLQPARA_STR-TWO_STEP_EXIT sy-vline 
WA_FLQPARA_STR-LQORIG_NEW sy-vline 
WA_FLQPARA_STR-LIMIT_REC sy-vline 
WA_FLQPARA_STR-LIMIT_ACT sy-vline 
WA_FLQPARA_STR-LIMIT_PRD sy-vline 
WA_FLQPARA_STR-LQPOS_BAL sy-vline 
WA_FLQPARA_STR-ALISTE sy-vline 
WA_FLQPARA_STR-NLISTE sy-vline 
WA_FLQPARA_STR-ASGN_FUNC sy-vline      INTO ld_text SEPARATED BY SPACE.

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