ABAP Select data from SAP table GVD_CURR_BLKSRV 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 GVD_CURR_BLKSRV 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 GVD_CURR_BLKSRV. 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 GVD_CURR_BLKSRV 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_GVD_CURR_BLKSRV TYPE STANDARD TABLE OF GVD_CURR_BLKSRV,
      WA_GVD_CURR_BLKSRV TYPE GVD_CURR_BLKSRV,
      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: <GVD_CURR_BLKSRV> TYPE GVD_CURR_BLKSRV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GVD_CURR_BLKSRV
*  INTO TABLE @DATA(IT_GVD_CURR_BLKSRV2).
*--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_GVD_CURR_BLKSRV INDEX 1 INTO DATA(WA_GVD_CURR_BLKSRV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_GVD_CURR_BLKSRV ASSIGNING <GVD_CURR_BLKSRV>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<GVD_CURR_BLKSRV>-SNAPSHOT_ID = 1.
<GVD_CURR_BLKSRV>-INST_ID = 1.
<GVD_CURR_BLKSRV>-PIN1 = 1.
<GVD_CURR_BLKSRV>-PIN10 = 1.
<GVD_CURR_BLKSRV>-PIN100 = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GVD_CURR_BLKSRV-PIN1000, sy-vline,
WA_GVD_CURR_BLKSRV-PIN10000, sy-vline,
WA_GVD_CURR_BLKSRV-FLUSH1, sy-vline,
WA_GVD_CURR_BLKSRV-FLUSH10, sy-vline,
WA_GVD_CURR_BLKSRV-FLUSH100, sy-vline,
WA_GVD_CURR_BLKSRV-FLUSH1000, sy-vline.
ENDLOOP. *Add any further fields from structure WA_GVD_CURR_BLKSRV 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_GVD_CURR_BLKSRV 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_GVD_CURR_BLKSRV INTO WA_GVD_CURR_BLKSRV. *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_GVD_CURR_BLKSRV_STR,
SNAPSHOT_ID TYPE STRING,
INST_ID TYPE STRING,
PIN1 TYPE STRING,
PIN10 TYPE STRING,
PIN100 TYPE STRING,
PIN1000 TYPE STRING,
PIN10000 TYPE STRING,
FLUSH1 TYPE STRING,
FLUSH10 TYPE STRING,
FLUSH100 TYPE STRING,
FLUSH1000 TYPE STRING,
FLUSH10000 TYPE STRING,
WRITE1 TYPE STRING,
WRITE10 TYPE STRING,
WRITE100 TYPE STRING,
WRITE1000 TYPE STRING,
WRITE10000 TYPE STRING,END OF T_EKKO_STR. DATA: WA_GVD_CURR_BLKSRV_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_GVD_CURR_BLKSRV_STR-SNAPSHOT_ID sy-vline
WA_GVD_CURR_BLKSRV_STR-INST_ID sy-vline
WA_GVD_CURR_BLKSRV_STR-PIN1 sy-vline
WA_GVD_CURR_BLKSRV_STR-PIN10 sy-vline
WA_GVD_CURR_BLKSRV_STR-PIN100 sy-vline
WA_GVD_CURR_BLKSRV_STR-PIN1000 sy-vline
WA_GVD_CURR_BLKSRV_STR-PIN10000 sy-vline
WA_GVD_CURR_BLKSRV_STR-FLUSH1 sy-vline
WA_GVD_CURR_BLKSRV_STR-FLUSH10 sy-vline
WA_GVD_CURR_BLKSRV_STR-FLUSH100 sy-vline
WA_GVD_CURR_BLKSRV_STR-FLUSH1000 sy-vline
WA_GVD_CURR_BLKSRV_STR-FLUSH10000 sy-vline
WA_GVD_CURR_BLKSRV_STR-WRITE1 sy-vline
WA_GVD_CURR_BLKSRV_STR-WRITE10 sy-vline
WA_GVD_CURR_BLKSRV_STR-WRITE100 sy-vline
WA_GVD_CURR_BLKSRV_STR-WRITE1000 sy-vline
WA_GVD_CURR_BLKSRV_STR-WRITE10000 sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.