ABAP Select data from SAP table TACOPCA 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 TACOPCA 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 TACOPCA. 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 TACOPCA 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_TACOPCA TYPE STANDARD TABLE OF TACOPCA,
      WA_TACOPCA TYPE TACOPCA,
      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: <TACOPCA> TYPE TACOPCA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TACOPCA
*  INTO TABLE @DATA(IT_TACOPCA2).
*--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_TACOPCA INDEX 1 INTO DATA(WA_TACOPCA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TACOPCA ASSIGNING <TACOPCA>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<TACOPCA>-K1N5 = 1.
<TACOPCA>-K2C5 = 1.
<TACOPCA>-K3N5 = 1.
<TACOPCA>-F8 = 1.
<TACOPCA>-I1 = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TACOPCA-I2, sy-vline,
WA_TACOPCA-I4, sy-vline,
WA_TACOPCA-N5, sy-vline,
WA_TACOPCA-N8, sy-vline,
WA_TACOPCA-D04, sy-vline,
WA_TACOPCA-D08, sy-vline.
ENDLOOP. *Add any further fields from structure WA_TACOPCA 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_TACOPCA 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_TACOPCA INTO WA_TACOPCA. *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_TACOPCA_STR,
K1N5 TYPE STRING,
K2C5 TYPE STRING,
K3N5 TYPE STRING,
F8 TYPE STRING,
I1 TYPE STRING,
I2 TYPE STRING,
I4 TYPE STRING,
N5 TYPE STRING,
N8 TYPE STRING,
D04 TYPE STRING,
D08 TYPE STRING,
D14 TYPE STRING,
D15 TYPE STRING,
DT8 TYPE STRING,
TM6 TYPE STRING,
C01 TYPE STRING,
C20 TYPE STRING,
C33 TYPE STRING,
R8 TYPE STRING,
C226 TYPE STRING,
C254 TYPE STRING,
LEN TYPE STRING,
VARC TYPE STRING,END OF T_EKKO_STR. DATA: WA_TACOPCA_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_TACOPCA_STR-K1N5 sy-vline
WA_TACOPCA_STR-K2C5 sy-vline
WA_TACOPCA_STR-K3N5 sy-vline
WA_TACOPCA_STR-F8 sy-vline
WA_TACOPCA_STR-I1 sy-vline
WA_TACOPCA_STR-I2 sy-vline
WA_TACOPCA_STR-I4 sy-vline
WA_TACOPCA_STR-N5 sy-vline
WA_TACOPCA_STR-N8 sy-vline
WA_TACOPCA_STR-D04 sy-vline
WA_TACOPCA_STR-D08 sy-vline
WA_TACOPCA_STR-D14 sy-vline
WA_TACOPCA_STR-D15 sy-vline
WA_TACOPCA_STR-DT8 sy-vline
WA_TACOPCA_STR-TM6 sy-vline
WA_TACOPCA_STR-C01 sy-vline
WA_TACOPCA_STR-C20 sy-vline
WA_TACOPCA_STR-C33 sy-vline
WA_TACOPCA_STR-R8 sy-vline
WA_TACOPCA_STR-C226 sy-vline
WA_TACOPCA_STR-C254 sy-vline
WA_TACOPCA_STR-LEN sy-vline
WA_TACOPCA_STR-VARC sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.