ABAP Select data from SAP table CMAC_ST_ALL 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 CMAC_ST_ALL 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 CMAC_ST_ALL. 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 CMAC_ST_ALL 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_CMAC_ST_ALL TYPE STANDARD TABLE OF CMAC_ST_ALL,
      WA_CMAC_ST_ALL TYPE CMAC_ST_ALL,
      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: <CMAC_ST_ALL> TYPE CMAC_ST_ALL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMAC_ST_ALL
*  INTO TABLE @DATA(IT_CMAC_ST_ALL2).
*--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_CMAC_ST_ALL INDEX 1 INTO DATA(WA_CMAC_ST_ALL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CMAC_ST_ALL ASSIGNING <CMAC_ST_ALL>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMAC_ST_ALL>-CMSTID = 1.
<CMAC_ST_ALL>-CMSTNUM = 1.
<CMAC_ST_ALL>-CMPERSL = 1.
<CMAC_ST_ALL>-CMSTCAT = 1.
<CMAC_ST_ALL>-CMBENCAT = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMAC_ST_ALL-CMPREVHE, sy-vline,
WA_CMAC_ST_ALL-CMSTGRP, sy-vline,
WA_CMAC_ST_ALL-CMPDISCT1, sy-vline,
WA_CMAC_ST_ALL-CMPDISCT2, sy-vline,
WA_CMAC_ST_ALL-CMPDISCT3, sy-vline,
WA_CMAC_ST_ALL-CMPDISCT4, sy-vline.
ENDLOOP. *Add any further fields from structure WA_CMAC_ST_ALL 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_CMAC_ST_ALL 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_CMAC_ST_ALL INTO WA_CMAC_ST_ALL. *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_CMAC_ST_ALL_STR,
CMSTID TYPE STRING,
CMSTNUM TYPE STRING,
CMPERSL TYPE STRING,
CMSTCAT TYPE STRING,
CMBENCAT TYPE STRING,
CMPREVHE TYPE STRING,
CMSTGRP TYPE STRING,
CMPDISCT1 TYPE STRING,
CMPDISCT2 TYPE STRING,
CMPDISCT3 TYPE STRING,
CMPDISCT4 TYPE STRING,
CMPDISCT5 TYPE STRING,
CMPDISCT6 TYPE STRING,
CMNATIO TYPE STRING,
CMLOCCURR TYPE STRING,
CMDOCCURR TYPE STRING,
CMCOMPCODE TYPE STRING,
CMCOCDGRP TYPE STRING,
CMSTCAMPUS TYPE STRING,
CMSTORG TYPE STRING,
CMSTSTATUS TYPE STRING,
CMVISATYPE TYPE STRING,
CMSTKEYDAT TYPE STRING,
CMSTCATT TYPE STRING,
CMBENCATT TYPE STRING,
CMSTGRPT TYPE STRING,
CMPDISCT1T TYPE STRING,
CMPDISCT2T TYPE STRING,
CMPDISCT3T TYPE STRING,
CMPDISCT4T TYPE STRING,
CMPDISCT5T TYPE STRING,
CMPDISCT6T TYPE STRING,
CMNATIOT TYPE STRING,
CMCOMPCODET TYPE STRING,
CMSTORGT TYPE STRING,
CMVISATYPET TYPE STRING,
CMSTCAMPUST TYPE STRING,END OF T_EKKO_STR. DATA: WA_CMAC_ST_ALL_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_CMAC_ST_ALL_STR-CMSTID sy-vline
WA_CMAC_ST_ALL_STR-CMSTNUM sy-vline
WA_CMAC_ST_ALL_STR-CMPERSL sy-vline
WA_CMAC_ST_ALL_STR-CMSTCAT sy-vline
WA_CMAC_ST_ALL_STR-CMBENCAT sy-vline
WA_CMAC_ST_ALL_STR-CMPREVHE sy-vline
WA_CMAC_ST_ALL_STR-CMSTGRP sy-vline
WA_CMAC_ST_ALL_STR-CMPDISCT1 sy-vline
WA_CMAC_ST_ALL_STR-CMPDISCT2 sy-vline
WA_CMAC_ST_ALL_STR-CMPDISCT3 sy-vline
WA_CMAC_ST_ALL_STR-CMPDISCT4 sy-vline
WA_CMAC_ST_ALL_STR-CMPDISCT5 sy-vline
WA_CMAC_ST_ALL_STR-CMPDISCT6 sy-vline
WA_CMAC_ST_ALL_STR-CMNATIO sy-vline
WA_CMAC_ST_ALL_STR-CMLOCCURR sy-vline
WA_CMAC_ST_ALL_STR-CMDOCCURR sy-vline
WA_CMAC_ST_ALL_STR-CMCOMPCODE sy-vline
WA_CMAC_ST_ALL_STR-CMCOCDGRP sy-vline
WA_CMAC_ST_ALL_STR-CMSTCAMPUS sy-vline
WA_CMAC_ST_ALL_STR-CMSTORG sy-vline
WA_CMAC_ST_ALL_STR-CMSTSTATUS sy-vline
WA_CMAC_ST_ALL_STR-CMVISATYPE sy-vline
WA_CMAC_ST_ALL_STR-CMSTKEYDAT sy-vline
WA_CMAC_ST_ALL_STR-CMSTCATT sy-vline
WA_CMAC_ST_ALL_STR-CMBENCATT sy-vline
WA_CMAC_ST_ALL_STR-CMSTGRPT sy-vline
WA_CMAC_ST_ALL_STR-CMPDISCT1T sy-vline
WA_CMAC_ST_ALL_STR-CMPDISCT2T sy-vline
WA_CMAC_ST_ALL_STR-CMPDISCT3T sy-vline
WA_CMAC_ST_ALL_STR-CMPDISCT4T sy-vline
WA_CMAC_ST_ALL_STR-CMPDISCT5T sy-vline
WA_CMAC_ST_ALL_STR-CMPDISCT6T sy-vline
WA_CMAC_ST_ALL_STR-CMNATIOT sy-vline
WA_CMAC_ST_ALL_STR-CMCOMPCODET sy-vline
WA_CMAC_ST_ALL_STR-CMSTORGT sy-vline
WA_CMAC_ST_ALL_STR-CMVISATYPET sy-vline
WA_CMAC_ST_ALL_STR-CMSTCAMPUST sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.