ABAP Select data from SAP table E2OILSV into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E2OILSV 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 E2OILSV. 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 E2OILSV 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_E2OILSV TYPE STANDARD TABLE OF E2OILSV,
      WA_E2OILSV TYPE E2OILSV,
      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: <E2OILSV> TYPE E2OILSV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E2OILSV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E2OILSV
  INTO TABLE IT_E2OILSV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E2OILSV
*  INTO TABLE @DATA(IT_E2OILSV2).
*--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_E2OILSV INDEX 1 INTO DATA(WA_E2OILSV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E2OILSV ASSIGNING <E2OILSV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E2OILSV>-VEHICLE = 1.
<E2OILSV>-COMP_GROUP = 1.
<E2OILSV>-VEH_TYPE = 1.
<E2OILSV>-VEH_ID = 1.
<E2OILSV>-CARRIER = 1.

ENDLOOP.

LOOP AT IT_E2OILSV INTO WA_E2OILSV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E2OILSV-VEH_NRTUS, sy-vline,
  WA_E2OILSV-VOL_UOM, sy-vline,
  WA_E2OILSV-WGT_UOM, sy-vline,
  WA_E2OILSV-DIM_UOM, sy-vline,
  WA_E2OILSV-VEH_MAXWGT, sy-vline,
  WA_E2OILSV-VEH_UNLWGT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E2OILSV 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_E2OILSV 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_E2OILSV INTO WA_E2OILSV.


*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 ALPHA, internal->external for field VEHICLE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2OILSV-VEHICLE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2OILSV-VEHICLE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field COMP_GROUP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2OILSV-COMP_GROUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2OILSV-COMP_GROUP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CARRIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2OILSV-CARRIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2OILSV-CARRIER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EQUIP_NR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2OILSV-EQUIP_NR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2OILSV-EQUIP_NR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MBLNRGL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2OILSV-MBLNRGL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2OILSV-MBLNRGL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2OILSV-MBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2OILSV-MBLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field MJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_E2OILSV-MJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2OILSV-MJAHR.
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_E2OILSV_STR, 
VEHICLE TYPE STRING,
COMP_GROUP TYPE STRING,
VEH_TYPE TYPE STRING,
VEH_ID TYPE STRING,
CARRIER TYPE STRING,
VEH_NRTUS TYPE STRING,
VOL_UOM TYPE STRING,
WGT_UOM TYPE STRING,
DIM_UOM TYPE STRING,
VEH_MAXWGT TYPE STRING,
VEH_UNLWGT TYPE STRING,
VEH_MAXVOL TYPE STRING,
EQUIP_NR TYPE STRING,
VEH_HEIGHT TYPE STRING,
VEH_WIDTH TYPE STRING,
VEH_LENGTH TYPE STRING,
ROUTE TYPE STRING,
OIG_SSTSF TYPE STRING,
LDDATE TYPE STRING,
LDTIME TYPE STRING,
SHIFT TYPE STRING,
TRIP TYPE STRING,
RTDATE TYPE STRING,
RTTIME TYPE STRING,
DDCDAT TYPE STRING,
PSTDAT TYPE STRING,
MBLNRGL TYPE STRING,
MBLNR TYPE STRING,
MJAHR TYPE STRING,
VCLOSE TYPE STRING,
GLPST TYPE STRING,
VBALNC TYPE STRING,
REAS_CODE TYPE STRING,
CHK_OVL TYPE STRING,
TPPOINT TYPE STRING,
FBSTA TYPE STRING,
FBGST TYPE STRING,
ARSTA TYPE STRING,
ARGST TYPE STRING,
ACT_WGT TYPE STRING,
ACT_VOL TYPE STRING,
UNL_WGT TYPE STRING,
MAX_WGT TYPE STRING,
MAX_VOL TYPE STRING,
VEH_TEXT TYPE STRING,
SHIFT_TEXT TYPE STRING,
VEH_TYTEXT TYPE STRING,
TPLST_TEXT TYPE STRING,
GROUPTEXT TYPE STRING,
EQKTX TYPE STRING,
VEH_MODE TYPE STRING,
CARR_TEXT TYPE STRING,
VEH_STATUS TYPE STRING,
WGT_TEXT TYPE STRING,
VOL_TEXT TYPE STRING,
DISTZ TYPE STRING,
MEDST TYPE STRING,
OIG_GESZTD TYPE STRING,
OIG_FAHZTD TYPE STRING,
MEIZT TYPE STRING,
STATUS TYPE STRING,
CNO_VLEVEL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E2OILSV_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_E2OILSV_STR-VEHICLE sy-vline 
WA_E2OILSV_STR-COMP_GROUP sy-vline 
WA_E2OILSV_STR-VEH_TYPE sy-vline 
WA_E2OILSV_STR-VEH_ID sy-vline 
WA_E2OILSV_STR-CARRIER sy-vline 
WA_E2OILSV_STR-VEH_NRTUS sy-vline 
WA_E2OILSV_STR-VOL_UOM sy-vline 
WA_E2OILSV_STR-WGT_UOM sy-vline 
WA_E2OILSV_STR-DIM_UOM sy-vline 
WA_E2OILSV_STR-VEH_MAXWGT sy-vline 
WA_E2OILSV_STR-VEH_UNLWGT sy-vline 
WA_E2OILSV_STR-VEH_MAXVOL sy-vline 
WA_E2OILSV_STR-EQUIP_NR sy-vline 
WA_E2OILSV_STR-VEH_HEIGHT sy-vline 
WA_E2OILSV_STR-VEH_WIDTH sy-vline 
WA_E2OILSV_STR-VEH_LENGTH sy-vline 
WA_E2OILSV_STR-ROUTE sy-vline 
WA_E2OILSV_STR-OIG_SSTSF sy-vline 
WA_E2OILSV_STR-LDDATE sy-vline 
WA_E2OILSV_STR-LDTIME sy-vline 
WA_E2OILSV_STR-SHIFT sy-vline 
WA_E2OILSV_STR-TRIP sy-vline 
WA_E2OILSV_STR-RTDATE sy-vline 
WA_E2OILSV_STR-RTTIME sy-vline 
WA_E2OILSV_STR-DDCDAT sy-vline 
WA_E2OILSV_STR-PSTDAT sy-vline 
WA_E2OILSV_STR-MBLNRGL sy-vline 
WA_E2OILSV_STR-MBLNR sy-vline 
WA_E2OILSV_STR-MJAHR sy-vline 
WA_E2OILSV_STR-VCLOSE sy-vline 
WA_E2OILSV_STR-GLPST sy-vline 
WA_E2OILSV_STR-VBALNC sy-vline 
WA_E2OILSV_STR-REAS_CODE sy-vline 
WA_E2OILSV_STR-CHK_OVL sy-vline 
WA_E2OILSV_STR-TPPOINT sy-vline 
WA_E2OILSV_STR-FBSTA sy-vline 
WA_E2OILSV_STR-FBGST sy-vline 
WA_E2OILSV_STR-ARSTA sy-vline 
WA_E2OILSV_STR-ARGST sy-vline 
WA_E2OILSV_STR-ACT_WGT sy-vline 
WA_E2OILSV_STR-ACT_VOL sy-vline 
WA_E2OILSV_STR-UNL_WGT sy-vline 
WA_E2OILSV_STR-MAX_WGT sy-vline 
WA_E2OILSV_STR-MAX_VOL sy-vline 
WA_E2OILSV_STR-VEH_TEXT sy-vline 
WA_E2OILSV_STR-SHIFT_TEXT sy-vline 
WA_E2OILSV_STR-VEH_TYTEXT sy-vline 
WA_E2OILSV_STR-TPLST_TEXT sy-vline 
WA_E2OILSV_STR-GROUPTEXT sy-vline 
WA_E2OILSV_STR-EQKTX sy-vline 
WA_E2OILSV_STR-VEH_MODE sy-vline 
WA_E2OILSV_STR-CARR_TEXT sy-vline 
WA_E2OILSV_STR-VEH_STATUS sy-vline 
WA_E2OILSV_STR-WGT_TEXT sy-vline 
WA_E2OILSV_STR-VOL_TEXT sy-vline 
WA_E2OILSV_STR-DISTZ sy-vline 
WA_E2OILSV_STR-MEDST sy-vline 
WA_E2OILSV_STR-OIG_GESZTD sy-vline 
WA_E2OILSV_STR-OIG_FAHZTD sy-vline 
WA_E2OILSV_STR-MEIZT sy-vline 
WA_E2OILSV_STR-STATUS sy-vline 
WA_E2OILSV_STR-CNO_VLEVEL sy-vline      INTO ld_text SEPARATED BY SPACE.

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