ABAP Select data from SAP table MSQSDBABI 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 MSQSDBABI 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 MSQSDBABI. 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 MSQSDBABI 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_MSQSDBABI TYPE STANDARD TABLE OF MSQSDBABI,
      WA_MSQSDBABI TYPE MSQSDBABI,
      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: <MSQSDBABI> TYPE MSQSDBABI.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MSQSDBABI
*  INTO TABLE @DATA(IT_MSQSDBABI2).
*--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_MSQSDBABI INDEX 1 INTO DATA(WA_MSQSDBABI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MSQSDBABI>-WEEK = 1.
<MSQSDBABI>-DAYE = 1.
<MSQSDBABI>-TIMEE = 1.
<MSQSDBABI>-BTYPE = 1.
<MSQSDBABI>-PERIOD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MSQSDBABI-MINRC, sy-vline,
  WA_MSQSDBABI-NRPROTS, sy-vline,
  WA_MSQSDBABI-UPDFLAG, sy-vline,
  WA_MSQSDBABI-STARTTSTMP, sy-vline,
  WA_MSQSDBABI-CRETSTMP, sy-vline,
  WA_MSQSDBABI-SYSID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MSQSDBABI 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_MSQSDBABI 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_MSQSDBABI INTO WA_MSQSDBABI.


*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_MSQSDBABI_STR, 
WEEK TYPE STRING,
DAYE TYPE STRING,
TIMEE TYPE STRING,
BTYPE TYPE STRING,
PERIOD TYPE STRING,
MINRC TYPE STRING,
NRPROTS TYPE STRING,
UPDFLAG TYPE STRING,
STARTTSTMP TYPE STRING,
CRETSTMP TYPE STRING,
SYSID TYPE STRING,
RESUPD TYPE STRING,
VOLUME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MSQSDBABI_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_MSQSDBABI_STR-WEEK sy-vline 
WA_MSQSDBABI_STR-DAYE sy-vline 
WA_MSQSDBABI_STR-TIMEE sy-vline 
WA_MSQSDBABI_STR-BTYPE sy-vline 
WA_MSQSDBABI_STR-PERIOD sy-vline 
WA_MSQSDBABI_STR-MINRC sy-vline 
WA_MSQSDBABI_STR-NRPROTS sy-vline 
WA_MSQSDBABI_STR-UPDFLAG sy-vline 
WA_MSQSDBABI_STR-STARTTSTMP sy-vline 
WA_MSQSDBABI_STR-CRETSTMP sy-vline 
WA_MSQSDBABI_STR-SYSID sy-vline 
WA_MSQSDBABI_STR-RESUPD sy-vline 
WA_MSQSDBABI_STR-VOLUME sy-vline      INTO ld_text SEPARATED BY SPACE.

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