ABAP Select data from SAP table CSLAZ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSLAZ
*  INTO TABLE @DATA(IT_CSLAZ2).
*--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_CSLAZ INDEX 1 INTO DATA(WA_CSLAZ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSLAZ>-MANDT = 1.
<CSLAZ>-KOKRS = 1.
<CSLAZ>-LSTAR = 1.
<CSLAZ>-DATBI = 1.
<CSLAZ>-DATAB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSLAZ-LEINH, sy-vline,
  WA_CSLAZ-LATYP, sy-vline,
  WA_CSLAZ-LATYPI, sy-vline,
  WA_CSLAZ-ERSDA, sy-vline,
  WA_CSLAZ-USNAM, sy-vline,
  WA_CSLAZ-KSTTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSLAZ 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_CSLAZ 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_CSLAZ INTO WA_CSLAZ.


*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 CUNIT, internal->external for field LEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CSLAZ-LEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSLAZ-LEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field AUSEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CSLAZ-AUSEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSLAZ-AUSEH.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CSLAZ-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSLAZ-SPRAS.
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_CSLAZ_STR, 
MANDT TYPE STRING,
KOKRS TYPE STRING,
LSTAR TYPE STRING,
DATBI TYPE STRING,
DATAB TYPE STRING,
LEINH TYPE STRING,
LATYP TYPE STRING,
LATYPI TYPE STRING,
ERSDA TYPE STRING,
USNAM TYPE STRING,
KSTTY TYPE STRING,
AUSEH TYPE STRING,
AUSFK TYPE STRING,
VKSTA TYPE STRING,
LARK1 TYPE STRING,
LARK2 TYPE STRING,
SPRKZ TYPE STRING,
HRKFT TYPE STRING,
FIXVO TYPE STRING,
TARKZ TYPE STRING,
YRATE TYPE STRING,
TARKZ_I TYPE STRING,
MANIST TYPE STRING,
MANPLAN TYPE STRING,
RKOKRS TYPE STRING,
RLSTAR TYPE STRING,
DATAB_ANFO TYPE STRING,
DATBI_ANFO TYPE STRING,
TXFLG TYPE STRING,
KOKRS_TEXT TYPE STRING,
LEINH_TEXT TYPE STRING,
LATYP_TEXT TYPE STRING,
LATYPI_TEXT TYPE STRING,
VKSTA_TEXT TYPE STRING,
TARKZ_TEXT TYPE STRING,
TARKZ_I_TEXT TYPE STRING,
ALOCFL TYPE STRING,
NOALOC TYPE STRING,
AUSFK_CHAR TYPE STRING,
LEINH_CHAR TYPE STRING,
AUSEH_CHAR TYPE STRING,
LIVAR TYPE STRING,
LIVAR_TEXT TYPE STRING,
KZ_BATCH TYPE STRING,
KZ_TEST TYPE STRING,
LSTAR_TEXT TYPE STRING,
AUSEH_TEXT TYPE STRING,
SPRAS TYPE STRING,
KTEXT TYPE STRING,
LTEXT TYPE STRING,
MCTXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSLAZ_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_CSLAZ_STR-MANDT sy-vline 
WA_CSLAZ_STR-KOKRS sy-vline 
WA_CSLAZ_STR-LSTAR sy-vline 
WA_CSLAZ_STR-DATBI sy-vline 
WA_CSLAZ_STR-DATAB sy-vline 
WA_CSLAZ_STR-LEINH sy-vline 
WA_CSLAZ_STR-LATYP sy-vline 
WA_CSLAZ_STR-LATYPI sy-vline 
WA_CSLAZ_STR-ERSDA sy-vline 
WA_CSLAZ_STR-USNAM sy-vline 
WA_CSLAZ_STR-KSTTY sy-vline 
WA_CSLAZ_STR-AUSEH sy-vline 
WA_CSLAZ_STR-AUSFK sy-vline 
WA_CSLAZ_STR-VKSTA sy-vline 
WA_CSLAZ_STR-LARK1 sy-vline 
WA_CSLAZ_STR-LARK2 sy-vline 
WA_CSLAZ_STR-SPRKZ sy-vline 
WA_CSLAZ_STR-HRKFT sy-vline 
WA_CSLAZ_STR-FIXVO sy-vline 
WA_CSLAZ_STR-TARKZ sy-vline 
WA_CSLAZ_STR-YRATE sy-vline 
WA_CSLAZ_STR-TARKZ_I sy-vline 
WA_CSLAZ_STR-MANIST sy-vline 
WA_CSLAZ_STR-MANPLAN sy-vline 
WA_CSLAZ_STR-RKOKRS sy-vline 
WA_CSLAZ_STR-RLSTAR sy-vline 
WA_CSLAZ_STR-DATAB_ANFO sy-vline 
WA_CSLAZ_STR-DATBI_ANFO sy-vline 
WA_CSLAZ_STR-TXFLG sy-vline 
WA_CSLAZ_STR-KOKRS_TEXT sy-vline 
WA_CSLAZ_STR-LEINH_TEXT sy-vline 
WA_CSLAZ_STR-LATYP_TEXT sy-vline 
WA_CSLAZ_STR-LATYPI_TEXT sy-vline 
WA_CSLAZ_STR-VKSTA_TEXT sy-vline 
WA_CSLAZ_STR-TARKZ_TEXT sy-vline 
WA_CSLAZ_STR-TARKZ_I_TEXT sy-vline 
WA_CSLAZ_STR-ALOCFL sy-vline 
WA_CSLAZ_STR-NOALOC sy-vline 
WA_CSLAZ_STR-AUSFK_CHAR sy-vline 
WA_CSLAZ_STR-LEINH_CHAR sy-vline 
WA_CSLAZ_STR-AUSEH_CHAR sy-vline 
WA_CSLAZ_STR-LIVAR sy-vline 
WA_CSLAZ_STR-LIVAR_TEXT sy-vline 
WA_CSLAZ_STR-KZ_BATCH sy-vline 
WA_CSLAZ_STR-KZ_TEST sy-vline 
WA_CSLAZ_STR-LSTAR_TEXT sy-vline 
WA_CSLAZ_STR-AUSEH_TEXT sy-vline 
WA_CSLAZ_STR-SPRAS sy-vline 
WA_CSLAZ_STR-KTEXT sy-vline 
WA_CSLAZ_STR-LTEXT sy-vline 
WA_CSLAZ_STR-MCTXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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