ABAP Select data from SAP table GANLC 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 GANLC 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 GANLC. 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 GANLC 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_GANLC TYPE STANDARD TABLE OF GANLC,
      WA_GANLC TYPE GANLC,
      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: <GANLC> TYPE GANLC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GANLC
*  INTO TABLE @DATA(IT_GANLC2).
*--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_GANLC INDEX 1 INTO DATA(WA_GANLC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_GANLC ASSIGNING <GANLC>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<GANLC>-KANSW = 1.
<GANLC>-KAUFW = 1.
<GANLC>-KINVZ = 1.
<GANLC>-KNAFA = 1.
<GANLC>-KSAFA = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GANLC-KAAFA, sy-vline,
WA_GANLC-KMAFA, sy-vline,
WA_GANLC-KZINW, sy-vline,
WA_GANLC-KAUFN, sy-vline,
WA_GANLC-KVOST, sy-vline,
WA_GANLC-AUFWP, sy-vline.
ENDLOOP. *Add any further fields from structure WA_GANLC 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_GANLC 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_GANLC INTO WA_GANLC. *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_GANLC_STR,
KANSW TYPE STRING,
KAUFW TYPE STRING,
KINVZ TYPE STRING,
KNAFA TYPE STRING,
KSAFA TYPE STRING,
KAAFA TYPE STRING,
KMAFA TYPE STRING,
KZINW TYPE STRING,
KAUFN TYPE STRING,
KVOST TYPE STRING,
AUFWP TYPE STRING,
NAFAP TYPE STRING,
SAFAP TYPE STRING,
AAFAP TYPE STRING,
MAFAP TYPE STRING,
AUFNP TYPE STRING,
ANSWL TYPE STRING,
ABGAN TYPE STRING,
ANSAZ TYPE STRING,
AUFWM TYPE STRING,
INVZM TYPE STRING,
NAFAM TYPE STRING,
SAFAM TYPE STRING,
AAFAM TYPE STRING,
MAFAM TYPE STRING,
AUFNM TYPE STRING,
AUFWV TYPE STRING,
INVZV TYPE STRING,
NAFAV TYPE STRING,
SAFAV TYPE STRING,
AAFAV TYPE STRING,
MAFAV TYPE STRING,
AUFNV TYPE STRING,
AUFWL TYPE STRING,
INVZL TYPE STRING,
NAFAL TYPE STRING,
SAFAL TYPE STRING,
AAFAL TYPE STRING,
MAFAL TYPE STRING,
AUFNL TYPE STRING,
KSANS TYPE STRING,
SANSL TYPE STRING,END OF T_EKKO_STR. DATA: WA_GANLC_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_GANLC_STR-KANSW sy-vline
WA_GANLC_STR-KAUFW sy-vline
WA_GANLC_STR-KINVZ sy-vline
WA_GANLC_STR-KNAFA sy-vline
WA_GANLC_STR-KSAFA sy-vline
WA_GANLC_STR-KAAFA sy-vline
WA_GANLC_STR-KMAFA sy-vline
WA_GANLC_STR-KZINW sy-vline
WA_GANLC_STR-KAUFN sy-vline
WA_GANLC_STR-KVOST sy-vline
WA_GANLC_STR-AUFWP sy-vline
WA_GANLC_STR-NAFAP sy-vline
WA_GANLC_STR-SAFAP sy-vline
WA_GANLC_STR-AAFAP sy-vline
WA_GANLC_STR-MAFAP sy-vline
WA_GANLC_STR-AUFNP sy-vline
WA_GANLC_STR-ANSWL sy-vline
WA_GANLC_STR-ABGAN sy-vline
WA_GANLC_STR-ANSAZ sy-vline
WA_GANLC_STR-AUFWM sy-vline
WA_GANLC_STR-INVZM sy-vline
WA_GANLC_STR-NAFAM sy-vline
WA_GANLC_STR-SAFAM sy-vline
WA_GANLC_STR-AAFAM sy-vline
WA_GANLC_STR-MAFAM sy-vline
WA_GANLC_STR-AUFNM sy-vline
WA_GANLC_STR-AUFWV sy-vline
WA_GANLC_STR-INVZV sy-vline
WA_GANLC_STR-NAFAV sy-vline
WA_GANLC_STR-SAFAV sy-vline
WA_GANLC_STR-AAFAV sy-vline
WA_GANLC_STR-MAFAV sy-vline
WA_GANLC_STR-AUFNV sy-vline
WA_GANLC_STR-AUFWL sy-vline
WA_GANLC_STR-INVZL sy-vline
WA_GANLC_STR-NAFAL sy-vline
WA_GANLC_STR-SAFAL sy-vline
WA_GANLC_STR-AAFAL sy-vline
WA_GANLC_STR-MAFAL sy-vline
WA_GANLC_STR-AUFNL sy-vline
WA_GANLC_STR-KSANS sy-vline
WA_GANLC_STR-SANSL sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.