ABAP Select data from SAP table ESH_L_KNB1_CUST 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 ESH_L_KNB1_CUST 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 ESH_L_KNB1_CUST. 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 ESH_L_KNB1_CUST 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_ESH_L_KNB1_CUST TYPE STANDARD TABLE OF ESH_L_KNB1_CUST,
      WA_ESH_L_KNB1_CUST TYPE ESH_L_KNB1_CUST,
      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: <ESH_L_KNB1_CUST> TYPE ESH_L_KNB1_CUST.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ESH_L_KNB1_CUST.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ESH_L_KNB1_CUST
  INTO TABLE IT_ESH_L_KNB1_CUST.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESH_L_KNB1_CUST
*  INTO TABLE @DATA(IT_ESH_L_KNB1_CUST2).
*--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_ESH_L_KNB1_CUST INDEX 1 INTO DATA(WA_ESH_L_KNB1_CUST2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ESH_L_KNB1_CUST ASSIGNING <ESH_L_KNB1_CUST>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESH_L_KNB1_CUST>-MANDT = 1.
<ESH_L_KNB1_CUST>-KUNNR = 1.
<ESH_L_KNB1_CUST>-BUKRS = 1.
<ESH_L_KNB1_CUST>-PERNR = 1.
<ESH_L_KNB1_CUST>-ERDAT = 1.
ENDLOOP.

LOOP AT IT_ESH_L_KNB1_CUST INTO WA_ESH_L_KNB1_CUST.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESH_L_KNB1_CUST-ERNAM, sy-vline,
WA_ESH_L_KNB1_CUST-SPERR, sy-vline,
WA_ESH_L_KNB1_CUST-LOEVM, sy-vline,
WA_ESH_L_KNB1_CUST-ZUAWA, sy-vline,
WA_ESH_L_KNB1_CUST-BUSAB, sy-vline,
WA_ESH_L_KNB1_CUST-AKONT, sy-vline.
ENDLOOP. *Add any further fields from structure WA_ESH_L_KNB1_CUST 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_ESH_L_KNB1_CUST 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_ESH_L_KNB1_CUST INTO WA_ESH_L_KNB1_CUST. *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 KUNNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_ESH_L_KNB1_CUST-KUNNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_KNB1_CUST-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AKONT CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_ESH_L_KNB1_CUST-AKONT IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_KNB1_CUST-AKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KNRZE CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_ESH_L_KNB1_CUST-KNRZE IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_KNB1_CUST-KNRZE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KNRZB CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_ESH_L_KNB1_CUST-KNRZB IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_KNB1_CUST-KNRZB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FDGRV CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_ESH_L_KNB1_CUST-FDGRV IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_KNB1_CUST-FDGRV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REMIT CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_ESH_L_KNB1_CUST-REMIT IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_KNB1_CUST-REMIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EKVBD CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_ESH_L_KNB1_CUST-EKVBD IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_KNB1_CUST-EKVBD.
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_ESH_L_KNB1_CUST_STR,
MANDT TYPE STRING,
KUNNR TYPE STRING,
BUKRS TYPE STRING,
PERNR TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
SPERR TYPE STRING,
LOEVM TYPE STRING,
ZUAWA TYPE STRING,
BUSAB TYPE STRING,
AKONT TYPE STRING,
BEGRU TYPE STRING,
KNRZE TYPE STRING,
KNRZB TYPE STRING,
ZAMIM TYPE STRING,
ZAMIV TYPE STRING,
ZAMIR TYPE STRING,
ZAMIB TYPE STRING,
ZAMIO TYPE STRING,
ZWELS TYPE STRING,
XVERR TYPE STRING,
ZAHLS TYPE STRING,
ZTERM TYPE STRING,
WAKON TYPE STRING,
VZSKZ TYPE STRING,
ZINDT TYPE STRING,
ZINRT TYPE STRING,
EIKTO TYPE STRING,
ZSABE TYPE STRING,
KVERM TYPE STRING,
FDGRV TYPE STRING,
VRBKZ TYPE STRING,
VLIBB TYPE STRING,
VRSZL TYPE STRING,
VRSPR TYPE STRING,
VRSNR TYPE STRING,
VERDT TYPE STRING,
PERKZ TYPE STRING,
XDEZV TYPE STRING,
XAUSZ TYPE STRING,
WEBTR TYPE STRING,
REMIT TYPE STRING,
DATLZ TYPE STRING,
XZVER TYPE STRING,
TOGRU TYPE STRING,
KULTG TYPE STRING,
HBKID TYPE STRING,
XPORE TYPE STRING,
BLNKZ TYPE STRING,
ALTKN TYPE STRING,
ZGRUP TYPE STRING,
URLID TYPE STRING,
MGRUP TYPE STRING,
LOCKB TYPE STRING,
UZAWE TYPE STRING,
EKVBD TYPE STRING,
SREGL TYPE STRING,
XEDIP TYPE STRING,
FRGRP TYPE STRING,
VRSDG TYPE STRING,
TLFXS TYPE STRING,
INTAD TYPE STRING,
XKNZB TYPE STRING,
GUZTE TYPE STRING,
GRICD TYPE STRING,
GRIDT TYPE STRING,
WBRSL TYPE STRING,
CONFS TYPE STRING,
UPDAT TYPE STRING,
UPTIM TYPE STRING,
NODEL TYPE STRING,
TLFNS TYPE STRING,
CESSION_KZ TYPE STRING,
AVSND TYPE STRING,
AD_HASH TYPE STRING,
QLAND TYPE STRING,END OF T_EKKO_STR. DATA: WA_ESH_L_KNB1_CUST_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_ESH_L_KNB1_CUST_STR-MANDT sy-vline
WA_ESH_L_KNB1_CUST_STR-KUNNR sy-vline
WA_ESH_L_KNB1_CUST_STR-BUKRS sy-vline
WA_ESH_L_KNB1_CUST_STR-PERNR sy-vline
WA_ESH_L_KNB1_CUST_STR-ERDAT sy-vline
WA_ESH_L_KNB1_CUST_STR-ERNAM sy-vline
WA_ESH_L_KNB1_CUST_STR-SPERR sy-vline
WA_ESH_L_KNB1_CUST_STR-LOEVM sy-vline
WA_ESH_L_KNB1_CUST_STR-ZUAWA sy-vline
WA_ESH_L_KNB1_CUST_STR-BUSAB sy-vline
WA_ESH_L_KNB1_CUST_STR-AKONT sy-vline
WA_ESH_L_KNB1_CUST_STR-BEGRU sy-vline
WA_ESH_L_KNB1_CUST_STR-KNRZE sy-vline
WA_ESH_L_KNB1_CUST_STR-KNRZB sy-vline
WA_ESH_L_KNB1_CUST_STR-ZAMIM sy-vline
WA_ESH_L_KNB1_CUST_STR-ZAMIV sy-vline
WA_ESH_L_KNB1_CUST_STR-ZAMIR sy-vline
WA_ESH_L_KNB1_CUST_STR-ZAMIB sy-vline
WA_ESH_L_KNB1_CUST_STR-ZAMIO sy-vline
WA_ESH_L_KNB1_CUST_STR-ZWELS sy-vline
WA_ESH_L_KNB1_CUST_STR-XVERR sy-vline
WA_ESH_L_KNB1_CUST_STR-ZAHLS sy-vline
WA_ESH_L_KNB1_CUST_STR-ZTERM sy-vline
WA_ESH_L_KNB1_CUST_STR-WAKON sy-vline
WA_ESH_L_KNB1_CUST_STR-VZSKZ sy-vline
WA_ESH_L_KNB1_CUST_STR-ZINDT sy-vline
WA_ESH_L_KNB1_CUST_STR-ZINRT sy-vline
WA_ESH_L_KNB1_CUST_STR-EIKTO sy-vline
WA_ESH_L_KNB1_CUST_STR-ZSABE sy-vline
WA_ESH_L_KNB1_CUST_STR-KVERM sy-vline
WA_ESH_L_KNB1_CUST_STR-FDGRV sy-vline
WA_ESH_L_KNB1_CUST_STR-VRBKZ sy-vline
WA_ESH_L_KNB1_CUST_STR-VLIBB sy-vline
WA_ESH_L_KNB1_CUST_STR-VRSZL sy-vline
WA_ESH_L_KNB1_CUST_STR-VRSPR sy-vline
WA_ESH_L_KNB1_CUST_STR-VRSNR sy-vline
WA_ESH_L_KNB1_CUST_STR-VERDT sy-vline
WA_ESH_L_KNB1_CUST_STR-PERKZ sy-vline
WA_ESH_L_KNB1_CUST_STR-XDEZV sy-vline
WA_ESH_L_KNB1_CUST_STR-XAUSZ sy-vline
WA_ESH_L_KNB1_CUST_STR-WEBTR sy-vline
WA_ESH_L_KNB1_CUST_STR-REMIT sy-vline
WA_ESH_L_KNB1_CUST_STR-DATLZ sy-vline
WA_ESH_L_KNB1_CUST_STR-XZVER sy-vline
WA_ESH_L_KNB1_CUST_STR-TOGRU sy-vline
WA_ESH_L_KNB1_CUST_STR-KULTG sy-vline
WA_ESH_L_KNB1_CUST_STR-HBKID sy-vline
WA_ESH_L_KNB1_CUST_STR-XPORE sy-vline
WA_ESH_L_KNB1_CUST_STR-BLNKZ sy-vline
WA_ESH_L_KNB1_CUST_STR-ALTKN sy-vline
WA_ESH_L_KNB1_CUST_STR-ZGRUP sy-vline
WA_ESH_L_KNB1_CUST_STR-URLID sy-vline
WA_ESH_L_KNB1_CUST_STR-MGRUP sy-vline
WA_ESH_L_KNB1_CUST_STR-LOCKB sy-vline
WA_ESH_L_KNB1_CUST_STR-UZAWE sy-vline
WA_ESH_L_KNB1_CUST_STR-EKVBD sy-vline
WA_ESH_L_KNB1_CUST_STR-SREGL sy-vline
WA_ESH_L_KNB1_CUST_STR-XEDIP sy-vline
WA_ESH_L_KNB1_CUST_STR-FRGRP sy-vline
WA_ESH_L_KNB1_CUST_STR-VRSDG sy-vline
WA_ESH_L_KNB1_CUST_STR-TLFXS sy-vline
WA_ESH_L_KNB1_CUST_STR-INTAD sy-vline
WA_ESH_L_KNB1_CUST_STR-XKNZB sy-vline
WA_ESH_L_KNB1_CUST_STR-GUZTE sy-vline
WA_ESH_L_KNB1_CUST_STR-GRICD sy-vline
WA_ESH_L_KNB1_CUST_STR-GRIDT sy-vline
WA_ESH_L_KNB1_CUST_STR-WBRSL sy-vline
WA_ESH_L_KNB1_CUST_STR-CONFS sy-vline
WA_ESH_L_KNB1_CUST_STR-UPDAT sy-vline
WA_ESH_L_KNB1_CUST_STR-UPTIM sy-vline
WA_ESH_L_KNB1_CUST_STR-NODEL sy-vline
WA_ESH_L_KNB1_CUST_STR-TLFNS sy-vline
WA_ESH_L_KNB1_CUST_STR-CESSION_KZ sy-vline
WA_ESH_L_KNB1_CUST_STR-AVSND sy-vline
WA_ESH_L_KNB1_CUST_STR-AD_HASH sy-vline
WA_ESH_L_KNB1_CUST_STR-QLAND sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.