ABAP Select data from SAP table REAJ_FIELDCATALOG 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 REAJ_FIELDCATALOG 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 REAJ_FIELDCATALOG. 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 REAJ_FIELDCATALOG 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_REAJ_FIELDCATALOG TYPE STANDARD TABLE OF REAJ_FIELDCATALOG, WA_REAJ_FIELDCATALOG TYPE REAJ_FIELDCATALOG, 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: <REAJ_FIELDCATALOG> TYPE REAJ_FIELDCATALOG. *Process all fields in table header/work area as string values PERFORM process_as_string_field_values CHANGING wa_REAJ_FIELDCATALOG. SELECT * *restrict ABAP select to first 10 rows UP TO 10 ROWS FROM REAJ_FIELDCATALOG INTO TABLE IT_REAJ_FIELDCATALOG. *Select data and declare internal table using in-line method @DATA *SELECT * * FROM REAJ_FIELDCATALOG * INTO TABLE @DATA(IT_REAJ_FIELDCATALOG2). *--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_REAJ_FIELDCATALOG INDEX 1 INTO DATA(WA_REAJ_FIELDCATALOG2). *Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL LOOP AT IT_REAJ_FIELDCATALOG ASSIGNING <REAJ_FIELDCATALOG>.*To update a field value using a field symbol simply change the value via the field symbol pointer
<REAJ_FIELDCATALOG>-GRIDROLL = 1.
<REAJ_FIELDCATALOG>-GRIDTEXT = 1.
<REAJ_FIELDCATALOG>-GRIDJUST = 1.
<REAJ_FIELDCATALOG>-GRIDCHECK = 1.
<REAJ_FIELDCATALOG>-GRIDPOS = 1.
ENDLOOP. LOOP AT IT_REAJ_FIELDCATALOG INTO WA_REAJ_FIELDCATALOG. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_REAJ_FIELDCATALOG-GRIDVALUE, sy-vline,
WA_REAJ_FIELDCATALOG-GRIDSUM, sy-vline,
WA_REAJ_FIELDCATALOG-GRIDTYPE, sy-vline,
WA_REAJ_FIELDCATALOG-GRIDCOLOR, sy-vline,
WA_REAJ_FIELDCATALOG-COL, sy-vline,
WA_REAJ_FIELDCATALOG-INT, sy-vline.
ENDLOOP. *Add any further fields from structure WA_REAJ_FIELDCATALOG 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_REAJ_FIELDCATALOG 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_REAJ_FIELDCATALOG INTO WA_REAJ_FIELDCATALOG. *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_REAJ_FIELDCATALOG_STR,
GRIDROLL TYPE STRING,
GRIDTEXT TYPE STRING,
GRIDJUST TYPE STRING,
GRIDCHECK TYPE STRING,
GRIDPOS TYPE STRING,
GRIDVALUE TYPE STRING,
GRIDSUM TYPE STRING,
GRIDTYPE TYPE STRING,
GRIDCOLOR TYPE STRING,
COL TYPE STRING,
INT TYPE STRING,
INV TYPE STRING,END OF T_EKKO_STR. DATA: WA_REAJ_FIELDCATALOG_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_REAJ_FIELDCATALOG_STR-GRIDROLL sy-vline
WA_REAJ_FIELDCATALOG_STR-GRIDTEXT sy-vline
WA_REAJ_FIELDCATALOG_STR-GRIDJUST sy-vline
WA_REAJ_FIELDCATALOG_STR-GRIDCHECK sy-vline
WA_REAJ_FIELDCATALOG_STR-GRIDPOS sy-vline
WA_REAJ_FIELDCATALOG_STR-GRIDVALUE sy-vline
WA_REAJ_FIELDCATALOG_STR-GRIDSUM sy-vline
WA_REAJ_FIELDCATALOG_STR-GRIDTYPE sy-vline
WA_REAJ_FIELDCATALOG_STR-GRIDCOLOR sy-vline
WA_REAJ_FIELDCATALOG_STR-COL sy-vline
WA_REAJ_FIELDCATALOG_STR-INT sy-vline
WA_REAJ_FIELDCATALOG_STR-INV sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.