ABAP Select data from SAP table UPP_YS_DOCU_LB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UPP_YS_DOCU_LB
*  INTO TABLE @DATA(IT_UPP_YS_DOCU_LB2).
*--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_UPP_YS_DOCU_LB INDEX 1 INTO DATA(WA_UPP_YS_DOCU_LB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UPP_YS_DOCU_LB>-SORT = 1.
<UPP_YS_DOCU_LB>-NO_INPUT = 1.
<UPP_YS_DOCU_LB>-NO_UNIT = 1.
<UPP_YS_DOCU_LB>-DYNMANIC = 1.
<UPP_YS_DOCU_LB>-USE_SUM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UPP_YS_DOCU_LB-SCRTEXT_L, sy-vline,
  WA_UPP_YS_DOCU_LB-VALUE_KEYF, sy-vline,
  WA_UPP_YS_DOCU_LB-SUM, sy-vline,
  WA_UPP_YS_DOCU_LB-VAR, sy-vline,
  WA_UPP_YS_DOCU_LB-VALUE, sy-vline,
  WA_UPP_YS_DOCU_LB-DECIM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UPP_YS_DOCU_LB 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_UPP_YS_DOCU_LB 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_UPP_YS_DOCU_LB INTO WA_UPP_YS_DOCU_LB.


*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_UPP_YS_DOCU_LB_STR, 
SORT TYPE STRING,
NO_INPUT TYPE STRING,
NO_UNIT TYPE STRING,
DYNMANIC TYPE STRING,
USE_SUM TYPE STRING,
SCRTEXT_L TYPE STRING,
VALUE_KEYF TYPE STRING,
SUM TYPE STRING,
VAR TYPE STRING,
VALUE TYPE STRING,
DECIM TYPE STRING,
ROUND TYPE STRING,
COLATR TYPE STRING,
SIGNATR TYPE STRING,
VARNM TYPE STRING,
VAR_OFFST TYPE STRING,
KEYFS_DATA TYPE STRING,
KEYFS_DATA_C TYPE STRING,
KEYFS_ROW TYPE STRING,
READ_MACRO TYPE STRING,
WRITE_MACRO TYPE STRING,
READ_FM TYPE STRING,
WRITE_FM TYPE STRING,
FIT_WIDEST TYPE STRING,
FB_ROWS TYPE STRING,
BUDGET TYPE STRING,
CHECK_BUDGET TYPE STRING,
HIE_DM TYPE STRING,
BW_HIE TYPE STRING,
BUDGET_BTTM_UP TYPE STRING,
CALC_FE TYPE STRING,
DYN_CHAR TYPE STRING,
RESTRICT TYPE STRING,
COMMIT_AREA TYPE STRING,
COMMIT_PLEVEL TYPE STRING,
COMMIT_METHOD TYPE STRING,
COMMIT_PARAM TYPE STRING,
COMMIT_PACKAGE TYPE STRING,
COMMIT_GL_SEQ TYPE STRING,
ROW_ATR TYPE STRING,
KEYCOLTXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UPP_YS_DOCU_LB_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_UPP_YS_DOCU_LB_STR-SORT sy-vline 
WA_UPP_YS_DOCU_LB_STR-NO_INPUT sy-vline 
WA_UPP_YS_DOCU_LB_STR-NO_UNIT sy-vline 
WA_UPP_YS_DOCU_LB_STR-DYNMANIC sy-vline 
WA_UPP_YS_DOCU_LB_STR-USE_SUM sy-vline 
WA_UPP_YS_DOCU_LB_STR-SCRTEXT_L sy-vline 
WA_UPP_YS_DOCU_LB_STR-VALUE_KEYF sy-vline 
WA_UPP_YS_DOCU_LB_STR-SUM sy-vline 
WA_UPP_YS_DOCU_LB_STR-VAR sy-vline 
WA_UPP_YS_DOCU_LB_STR-VALUE sy-vline 
WA_UPP_YS_DOCU_LB_STR-DECIM sy-vline 
WA_UPP_YS_DOCU_LB_STR-ROUND sy-vline 
WA_UPP_YS_DOCU_LB_STR-COLATR sy-vline 
WA_UPP_YS_DOCU_LB_STR-SIGNATR sy-vline 
WA_UPP_YS_DOCU_LB_STR-VARNM sy-vline 
WA_UPP_YS_DOCU_LB_STR-VAR_OFFST sy-vline 
WA_UPP_YS_DOCU_LB_STR-KEYFS_DATA sy-vline 
WA_UPP_YS_DOCU_LB_STR-KEYFS_DATA_C sy-vline 
WA_UPP_YS_DOCU_LB_STR-KEYFS_ROW sy-vline 
WA_UPP_YS_DOCU_LB_STR-READ_MACRO sy-vline 
WA_UPP_YS_DOCU_LB_STR-WRITE_MACRO sy-vline 
WA_UPP_YS_DOCU_LB_STR-READ_FM sy-vline 
WA_UPP_YS_DOCU_LB_STR-WRITE_FM sy-vline 
WA_UPP_YS_DOCU_LB_STR-FIT_WIDEST sy-vline 
WA_UPP_YS_DOCU_LB_STR-FB_ROWS sy-vline 
WA_UPP_YS_DOCU_LB_STR-BUDGET sy-vline 
WA_UPP_YS_DOCU_LB_STR-CHECK_BUDGET sy-vline 
WA_UPP_YS_DOCU_LB_STR-HIE_DM sy-vline 
WA_UPP_YS_DOCU_LB_STR-BW_HIE sy-vline 
WA_UPP_YS_DOCU_LB_STR-BUDGET_BTTM_UP sy-vline 
WA_UPP_YS_DOCU_LB_STR-CALC_FE sy-vline 
WA_UPP_YS_DOCU_LB_STR-DYN_CHAR sy-vline 
WA_UPP_YS_DOCU_LB_STR-RESTRICT sy-vline 
WA_UPP_YS_DOCU_LB_STR-COMMIT_AREA sy-vline 
WA_UPP_YS_DOCU_LB_STR-COMMIT_PLEVEL sy-vline 
WA_UPP_YS_DOCU_LB_STR-COMMIT_METHOD sy-vline 
WA_UPP_YS_DOCU_LB_STR-COMMIT_PARAM sy-vline 
WA_UPP_YS_DOCU_LB_STR-COMMIT_PACKAGE sy-vline 
WA_UPP_YS_DOCU_LB_STR-COMMIT_GL_SEQ sy-vline 
WA_UPP_YS_DOCU_LB_STR-ROW_ATR sy-vline 
WA_UPP_YS_DOCU_LB_STR-KEYCOLTXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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