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REPORT ztest_key.TYPES: BEGIN OF ty_data,         index TYPE int4,         name  TYPE char10,         score TYPE int4,         text  TYPE string,       END OF ty_data.TYPES: tt_data1 TYPE STANDARD TABLE OF ty_data,       "tt_data2 type STANDARD  TABLE OF ty_data with UNIQUE key dsf. SYNTAX ERROR       tt_data2 TYPE SORTED TABLE OF ty_data WITH UNIQUE KEY score,       tt_data3 TYPE SORTED TABLE OF ty_data WITH UNIQUE KEY primary_key COMPONENTS name score         WITH NON-UNIQUE SORTED KEY k1 COMPONENTS text.DATA: lt_table1 TYPE tt_data1,      lt_table2 TYPE tt_data2,      lt_table3 TYPE tt_data3.READ TABLE lt_table1 TRANSPORTING NO FIELDS WITH KEY index = 1.READ TABLE lt_table1 TRANSPORTING NO FIELDS WITH KEY name = 'Jerry'.READ TABLE lt_table1 TRANSPORTING NO FIELDS WITH KEY score = 20.READ TABLE lt_table1 TRANSPORTING NO FIELDS WITH KEY text = 'Jerry'."READ TABLE lt_table1 TRANSPORTING NO FIELDS WITH TABLE KEY index = 1." Specification for component "NAME" of key "PRIMARY_KEY" of table "LT_TABLE1" is missing or incomplete." Key must be completely provided.READ TABLE lt_table1 TRANSPORTING NO FIELDS WITH TABLE KEY name = 'Jerry' text = 'Text'.READ TABLE lt_table2 TRANSPORTING NO FIELDS WITH KEY index = 1.READ TABLE lt_table2 TRANSPORTING NO FIELDS WITH KEY name = 'Jerry'.READ TABLE lt_table2 TRANSPORTING NO FIELDS WITH KEY score = 20.READ TABLE lt_table2 TRANSPORTING NO FIELDS WITH KEY text = 'Jerry'."Syntax error" Jerry 2016-12-4 11:44PM - it seems *READ XXXX WITH TABLE KEY* can only work if explicit table key is defined" using keyword WITH UNIQUE KEY or WITH NON-UNIQUE KEY"READ TABLE lt_table2 TRANSPORTING NO FIELDS WITH TABLE KEY index = 1."syntax error"READ TABLE lt_table2 TRANSPORTING NO FIELDS WITH TABLE KEY name = 'Jerry'.READ TABLE lt_table2 TRANSPORTING NO FIELDS WITH TABLE KEY score = 20."Syntax error"syntax error"READ TABLE lt_table3 TRANSPORTING NO FIELDS WITH TABLE KEY text = 'Jerry'."syntax error"READ TABLE lt_table3 TRANSPORTING NO FIELDS WITH TABLE KEY name = 'Jerry'."syntax error"READ TABLE lt_table3 TRANSPORTING NO FIELDS WITH TABLE KEY score = 20.READ TABLE lt_table3 TRANSPORTING NO FIELDS WITH TABLE KEY name = 'Jerry' score = 20.READ TABLE lt_table3 TRANSPORTING NO FIELDS WITH TABLE KEY k1 COMPONENTS text = 'this is text'.DATA(type1) = CAST cl_abap_tabledescr( cl_abap_typedescr=>describe_by_data( lt_table1 ) ).DATA(lt_keys1) = type1->get_keys( ).WRITE:/ 'Key information for lt_key1...' COLOR COL_KEY.PERFORM print USING lt_keys1.DATA(type2) = CAST cl_abap_tabledescr( cl_abap_typedescr=>describe_by_data( lt_table2 ) ).DATA(lt_keys2) = type2->get_keys( ).WRITE:/ 'Key information for lt_key2...' COLOR COL_KEY.PERFORM print USING lt_keys2.DATA(type3) = CAST cl_abap_tabledescr( cl_abap_typedescr=>describe_by_data( lt_table3 ) ).DATA(lt_keys3) = type3->get_keys( ).WRITE:/ 'Key information for lt_key3...' COLOR COL_KEY.PERFORM print USING lt_keys3.FORM print USING it_table TYPE abap_table_keydescr_tab.  LOOP AT it_table ASSIGNING FIELD-SYMBOL(
   
    ) WHERE is_primary = abap_true.    WRITE: / 'The following fields are primary key:' COLOR COL_GROUP.    LOOP AT 
    
     -components ASSIGNING FIELD-SYMBOL(
     ).      WRITE: /  COLOR COL_NEGATIVE.    ENDLOOP.  ENDLOOP.  LOOP AT it_table ASSIGNING FIELD-SYMBOL(
       
        ) WHERE is_primary = abap_false.    WRITE: / 'The following fields are secondary key:' COLOR COL_POSITIVE.    LOOP AT 
        
         -components ASSIGNING FIELD-SYMBOL(
         
          ). WRITE: / 
          
            COLOR COL_TOTAL. ENDLOOP. ENDLOOP.ENDFORM.
          
         
        
       
    
   

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