ABAP Select data from SAP table BAPIQMSTI0 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BAPIQMSTI0 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 BAPIQMSTI0. 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 BAPIQMSTI0 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_BAPIQMSTI0 TYPE STANDARD TABLE OF BAPIQMSTI0,
      WA_BAPIQMSTI0 TYPE BAPIQMSTI0,
      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: <BAPIQMSTI0> TYPE BAPIQMSTI0.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BAPIQMSTI0.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BAPIQMSTI0
  INTO TABLE IT_BAPIQMSTI0.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPIQMSTI0
*  INTO TABLE @DATA(IT_BAPIQMSTI02).
*--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_BAPIQMSTI0 INDEX 1 INTO DATA(WA_BAPIQMSTI02).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BAPIQMSTI0 ASSIGNING <BAPIQMSTI0>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPIQMSTI0>-REPORT_NO = 1.
<BAPIQMSTI0>-CHAR_NO = 1.
<BAPIQMSTI0>-CHAR_VERS = 1.
<BAPIQMSTI0>-SAMPLE_NO = 1.
<BAPIQMSTI0>-RES_NO = 1.

ENDLOOP.

LOOP AT IT_BAPIQMSTI0 INTO WA_BAPIQMSTI0.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPIQMSTI0-RES_NO_C, sy-vline,
  WA_BAPIQMSTI0-INSP_DATE, sy-vline,
  WA_BAPIQMSTI0-INSP_TIME, sy-vline,
  WA_BAPIQMSTI0-CAT_TYPE, sy-vline,
  WA_BAPIQMSTI0-CODE_GROUP, sy-vline,
  WA_BAPIQMSTI0-RES_CODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPIQMSTI0 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_BAPIQMSTI0 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_BAPIQMSTI0 INTO WA_BAPIQMSTI0.


*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_BAPIQMSTI0_STR, 
REPORT_NO TYPE STRING,
CHAR_NO TYPE STRING,
CHAR_VERS TYPE STRING,
SAMPLE_NO TYPE STRING,
RES_NO TYPE STRING,
RES_NO_C TYPE STRING,
INSP_DATE TYPE STRING,
INSP_TIME TYPE STRING,
CAT_TYPE TYPE STRING,
CODE_GROUP TYPE STRING,
RES_CODE TYPE STRING,
RES_TEXT TYPE STRING,
RES_ATTR TYPE STRING,
RES_INVAL TYPE STRING,
RES_VALUAT TYPE STRING,
ERR_CLASS TYPE STRING,
USERC1 TYPE STRING,
USERC2 TYPE STRING,
USERC3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPIQMSTI0_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_BAPIQMSTI0_STR-REPORT_NO sy-vline 
WA_BAPIQMSTI0_STR-CHAR_NO sy-vline 
WA_BAPIQMSTI0_STR-CHAR_VERS sy-vline 
WA_BAPIQMSTI0_STR-SAMPLE_NO sy-vline 
WA_BAPIQMSTI0_STR-RES_NO sy-vline 
WA_BAPIQMSTI0_STR-RES_NO_C sy-vline 
WA_BAPIQMSTI0_STR-INSP_DATE sy-vline 
WA_BAPIQMSTI0_STR-INSP_TIME sy-vline 
WA_BAPIQMSTI0_STR-CAT_TYPE sy-vline 
WA_BAPIQMSTI0_STR-CODE_GROUP sy-vline 
WA_BAPIQMSTI0_STR-RES_CODE sy-vline 
WA_BAPIQMSTI0_STR-RES_TEXT sy-vline 
WA_BAPIQMSTI0_STR-RES_ATTR sy-vline 
WA_BAPIQMSTI0_STR-RES_INVAL sy-vline 
WA_BAPIQMSTI0_STR-RES_VALUAT sy-vline 
WA_BAPIQMSTI0_STR-ERR_CLASS sy-vline 
WA_BAPIQMSTI0_STR-USERC1 sy-vline 
WA_BAPIQMSTI0_STR-USERC2 sy-vline 
WA_BAPIQMSTI0_STR-USERC3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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