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danrega
2023-05-04 17:05:05 +02:00
parent fe10b5d3cf
commit 5f64588465
17 changed files with 508 additions and 110 deletions
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238
src/zcl_demo_abap_internal_tables.clas.abap
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@@ -110,16 +110,12 @@ protected section.
ENDCLASS.
CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
METHOD class_constructor.
fill_dbtabs( ).
ENDMETHOD.
METHOD fill_dbtabs.
"Initializing and filling of database tables to have data to work with
@@ -141,7 +137,6 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
ENDMETHOD.
METHOD fill_itabs_for_corresponding.
tab1 = VALUE #( ( a = 1 b = 'aaa' c = 'aaa' d = 'A' )
( a = 2 b = 'bbb' c = 'bbb' d = 'B' ) ).
@@ -182,7 +177,6 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
ENDMETHOD.
METHOD if_oo_adt_classrun~main.
DATA(output) = NEW zcl_demo_abap_display( out ).
@@ -221,6 +215,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it_st name = `it_st` ).
output->display( input = it_so name = `it_so` ).
**********************************************************************
output->next_section( `2) Adding initial line` ).
APPEND INITIAL LINE TO it_st.
@@ -230,6 +226,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it_st name = `it_st` ).
output->display( input = it_so name = `it_so` ).
**********************************************************************
output->next_section( `3) Adding mutliple lines of an internal table to` &&
` another one` ).
@@ -249,6 +247,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it_st name = `it_st` ).
output->display( input = it_so name = `it_so` ).
**********************************************************************
output->next_section( `4) Adding lines of an internal table to` &&
` another one by specifying the index range.` ).
@@ -263,6 +263,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it_st name = `it_st` ).
**********************************************************************
output->next_section( `5) Inserting lines of an internal table` &&
` into another one at a specific position` ).
@@ -275,6 +277,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it_st name = `it_st` ).
**********************************************************************
output->next_section( `6) Adding lines using constructor expressions` ).
"Creating a line to be added to an internal table.
@@ -287,6 +291,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it_st name = `it_st` ).
**********************************************************************
output->next_section( `7) Creating a new table inline and adding lines` &&
` using a constructor expression` ).
@@ -301,6 +307,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it_st2 name = `it_st2` ).
**********************************************************************
output->next_section( `8) Adding lines using constructor expressions ` &&
`and keeping existing table content` ).
@@ -311,6 +319,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it_st name = `it_st` ).
**********************************************************************
output->next_section( `9) Adding lines from other internal tables using` &&
` constructor expressions` ).
@@ -323,6 +333,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it_st name = `it_st` ).
**********************************************************************
output->next_section( `10) Copying table content (without constructor ` &&
`expression)` ).
@@ -331,6 +343,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it_st name = `it_st` ).
**********************************************************************
output->next_section( `11) CORRESPONDING Operator and MOVE-CORRESPONDING` ).
output->display( `Internal table content before assignments` ).
@@ -343,6 +357,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = tab3 name = `tab3` ).
output->display( input = tab4 name = `tab4` ).
**********************************************************************
output->next_section( `Copying content from another table that has ` &&
`a different line type ...` ).
output->display( `11a) ... and deleting existing table content ` &&
@@ -354,6 +370,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
fill_itabs_for_corresponding( ).
**********************************************************************
output->next_section( `11b) ... and deleting existing table content ` &&
`using MOVE-CORRESPONDING` ).
@@ -363,6 +381,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
fill_itabs_for_corresponding( ).
**********************************************************************
output->next_section( `11c) ... and keeping existing table ` &&
`content using the CORRESPONDING operator` ).
@@ -372,6 +392,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
fill_itabs_for_corresponding( ).
**********************************************************************
output->next_section( `11d) ... and keeping existing table ` &&
`content using MOVE-CORRESPONDING` ).
@@ -381,6 +403,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
fill_itabs_for_corresponding( ).
**********************************************************************
output->next_section( `11e) ... respecting component ` &&
`mapping` ).
@@ -392,6 +416,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
fill_itabs_for_corresponding( ).
**********************************************************************
output->next_section( `11f) ... excluding components` ).
"Excluding components from the assignment
@@ -407,6 +433,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
fill_itabs_for_corresponding( ).
**********************************************************************
output->next_section( `11h) ... discarding duplicates` ).
"Preventing runtime errors if duplicate lines are assigned to
@@ -423,6 +451,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = tab3 name = `tab3` ).
**********************************************************************
output->next_section( `11i) Copying data from a deep ` &&
`internal table to another deep internal table` ).
output->display( `Original table content` ).
@@ -430,6 +460,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = itab_nested1 name = `itab_nested1` ).
output->display( input = itab_nested2 name = `itab_nested2` ).
**********************************************************************
output->next_section( `11j) ... deleting ` &&
`existing content (CORRESPONDING operator)` ).
@@ -439,6 +471,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
fill_itabs_for_corresponding( ).
**********************************************************************
output->next_section( `11k) ... deleting ` &&
`existing content (MOVE-CORRESPONDING)` ).
@@ -449,6 +483,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
fill_itabs_for_corresponding( ).
**********************************************************************
output->next_section( `11l) ... keeping ` &&
`existing content (CORRESPONDING operator)` ).
@@ -459,6 +495,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
fill_itabs_for_corresponding( ).
**********************************************************************
output->next_section( `11m) ... keeping ` &&
`existing content (MOVE-CORRESPONDING)` ).
@@ -467,6 +505,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = itab_nested2 name = `itab_nested2` ).
**********************************************************************
output->next_section( `Filling internal tables: Excursions` ).
output->display( `12) Selecting multiple rows from a database ` &&
`table into an internal table` ).
@@ -478,6 +518,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = itab_select1 name = `itab_select1` ).
**********************************************************************
output->next_section( `13) Sequentially adding multiple rows from ` &&
`a database table to an internal table` ).
@@ -500,6 +542,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = itab name = `itab` ).
**********************************************************************
output->next_section( `14) Adding multiple rows from a database table ` &&
`to an internal table that has a different line type than the ` &&
`database table and keeping existing table content` ).
@@ -511,6 +555,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = itab name = `itab` ).
**********************************************************************
output->next_section( `15) Adding multiple rows from a database table ` &&
`to an internal table that has a different line type than the ` &&
`database table and deleting existing table content` ).
@@ -522,6 +568,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = itab name = `itab` ).
**********************************************************************
output->next_section( `16) Adding multiple rows from an internal table ` &&
`to an internal table using SELECT` ).
@@ -531,6 +579,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = itab_clone name = `itab_clone` ).
**********************************************************************
output->next_section( `17) Combining data of multiple tables into an` &&
` internal table using an inner join` ).
@@ -552,6 +602,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = join_result name = `join_result` ).
**********************************************************************
output->next_section( `18) Filling internal table ` &&
`using a subquery (1)` ).
@@ -566,6 +618,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = subquery_result1 name = `subquery_result1` ).
**********************************************************************
output->next_section( `19) Filling internal table ` &&
`using a subquery (2)` ).
@@ -583,6 +637,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = subquery_result2 name = `subquery_result2` ).
**********************************************************************
output->next_section( `20) Filling an internal table from a table ` &&
`depending on the existence of data in another internal table ` &&
`using the addition FOR ALL ENTRIES` ).
@@ -602,6 +658,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = select_result name = `select_result` ).
**********************************************************************
output->next_section( `21) Adding content from a database to internal` &&
` table by using alias names in the SELECT list` ).
@@ -618,6 +676,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = itab2 name = `itab2` ).
**********************************************************************
output->next_section( `22) FILTER: Filtering internal table by condition` ).
"This section covers multiple examples demonstrating the syntactical variety
@@ -717,6 +777,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = f11 name = `f11` ).
**********************************************************************
output->next_section( `25) Inserting data into an internal table ` &&
`using a COLLECT statement` ).
@@ -735,6 +797,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = itab_num name = `itab_num` ).
**********************************************************************
output->next_section( `Reading from internal tables` ).
"Filling internal tables
@@ -767,6 +831,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it_so_sec name = `it_so_sec` ).
output->display( input = it_ha_sec name = `it_ha_sec` ).
**********************************************************************
output->next_section( `26) Reading a single line into target area` ).
"The examples anticipate the reading of a line by index since the
@@ -801,6 +867,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = dref->* name = `dref->*` ).
output->display( input = dref2->* name = `dref2->*` ).
**********************************************************************
output->next_section( `Reading a single line via index ...` ).
output->display( `27) ... using READ TABLE` ).
@@ -830,6 +898,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = wa7 name = `wa7` ).
output->display( input = wa8 name = `wa8` ).
**********************************************************************
output->next_section( `28) ... table expressions (1)` ).
"Reading via index; primary table index is used implicitly
@@ -867,6 +937,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = lv4 name = `lv4` ).
output->display( input = lv5 name = `lv5` ).
**********************************************************************
output->next_section( `29) ... table expressions (2)` ).
"Copying a table line via table expression and embedding in
@@ -888,6 +960,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = lv7 name = `lv7` ).
output->display( input = lv8 name = `lv8` ).
**********************************************************************
output->next_section( `Reading a single line via table keys ...` ).
output->display( `30) ... using READ TABLE (1)` ).
@@ -915,6 +989,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = wa12 name = `wa12` ).
output->display( input = wa13 name = `wa13` ).
**********************************************************************
output->next_section( `31) ... using READ TABLE (2)` ).
"Reading a line based on keys specified in a work area
@@ -941,6 +1017,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = wa15 name = `wa15` ).
output->display( input = wa16 name = `wa16` ).
**********************************************************************
output->next_section( `32) ... using table expressions` ).
"Primary table key (COMPONENTS addition is optional)
DATA(lv9) = it_so_sec[ KEY primary_key COMPONENTS a = 1 ].
@@ -960,6 +1038,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = lv12 name = `lv12` ).
output->display( input = lv13 name = `lv13` ).
**********************************************************************
output->next_section( `33) Reading a single line via free key` ).
"Note: If there a multiple matching entries, the first found
"is returned.
@@ -970,6 +1050,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = wa17 name = `wa17` ).
output->display( input = lv14 name = `lv14` ).
**********************************************************************
output->next_section( `34) Excursion: Addressing individual components` ).
"Addressing a component using the component selector
DATA(comp1) = it_so_sec[ 1 ]-b.
@@ -990,6 +1072,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = comp3 name = `comp3` ).
output->display( input = comp4 name = `comp4` ).
**********************************************************************
output->next_section( `35) Checking if a line exists in an internal table` ).
"Defining the key
@@ -1013,6 +1097,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( |Line { key1 } does not exist in internal table.| ).
ENDIF.
**********************************************************************
output->next_section( `36) Checking the index of a ` &&
`specific line` ).
@@ -1077,9 +1163,11 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( |The internal table consists of { itab_lines } | &&
|lines.| ).
**********************************************************************
output->next_section( `Processing multiple internal table lines ` &&
`sequentially` ).
output->display( `38) Reading a complete table by sequentially ` &&
output->display( `38a) Reading a complete table by sequentially ` &&
`reading all lines` ).
"No further addition: All lines are respected.
@@ -1090,6 +1178,83 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it_so_sec name = `it_so_sec` ).
**********************************************************************
output->display( `38b) LOOP AT statements with different targets` ).
"The following examples demonstrate the different targets that
"are possible for LOOP AT statements. In the example above,
"a field symbol is created inline.
"As above, there are no additions to the loop statement, i.e. all lines
"are processed.
DATA(lines_in_table) = lines( it_so_sec ).
output->display( |There should be { lines_in_table } iterations per loop.| ).
"Target: Existing work area
output->display( `---- Loop target: Existing work area ----` ).
DATA wa_lo LIKE LINE OF it_so_sec.
LOOP AT it_so_sec INTO wa_lo.
IF sy-tabix = 1.
output->display( |This text is displayed when reaching line { sy-tabix }.| ).
ELSEIF sy-tabix = lines_in_table.
output->display( |This text is displayed when reaching line { sy-tabix }.| ).
ENDIF.
ENDLOOP.
output->display( `---- Loop target: Work area created inline ----` ).
LOOP AT it_so_sec INTO DATA(wa_inl).
IF sy-tabix = 1.
output->display( |This text is displayed when reaching line { sy-tabix }.| ).
ELSEIF sy-tabix = lines_in_table.
output->display( |This text is displayed when reaching line { sy-tabix }.| ).
ENDIF.
ENDLOOP.
output->display( `---- Loop target: Existing field symbol ----` ).
FIELD-SYMBOLS <fs_lo> LIKE LINE OF it_so_sec.
LOOP AT it_so_sec ASSIGNING <fs>.
IF sy-tabix = 1.
output->display( |This text is displayed when reaching line { sy-tabix }.| ).
ELSEIF sy-tabix = lines_in_table.
output->display( |This text is displayed when reaching line { sy-tabix }.| ).
ENDIF.
ENDLOOP.
output->display( `---- Loop target: Field symbol created inline ----` ).
LOOP AT it_so_sec ASSIGNING FIELD-SYMBOL(<fs_inl>).
IF sy-tabix = 1.
output->display( |This text is displayed when reaching line { sy-tabix }.| ).
ELSEIF sy-tabix = lines_in_table.
output->display( |This text is displayed when reaching line { sy-tabix }.| ).
ENDIF.
ENDLOOP.
output->display( `---- Loop target: Existing data reference variable ----` ).
DATA dref_lo TYPE REF TO struc1 .
LOOP AT it_so_sec REFERENCE INTO dref_lo.
IF sy-tabix = 1.
output->display( |This text is displayed when reaching line { sy-tabix }.| ).
ELSEIF sy-tabix = lines_in_table.
output->display( |This text is displayed when reaching line { sy-tabix }.| ).
ENDIF.
ENDLOOP.
output->display( `Loop target: Data reference variable created inline` ).
LOOP AT it_so_sec REFERENCE INTO DATA(dref_inl).
IF sy-tabix = 1.
output->display( |This text is displayed when reaching line { sy-tabix }.| ).
ELSEIF sy-tabix = lines_in_table.
output->display( |This text is displayed when reaching line { sy-tabix }.| ).
ENDIF.
ENDLOOP.
**********************************************************************
output->next_section( `39) Reading multiple lines by an index range` ).
"Specific lines in an index range are respected
@@ -1101,6 +1266,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it_so_sec name = `it_so_sec` ).
**********************************************************************
output->next_section( `40) Reading multiple lines by condition` ).
LOOP AT it_so_sec ASSIGNING FIELD-SYMBOL(<fs6>) WHERE a < 3.
@@ -1110,6 +1277,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it_so_sec name = `it_so_sec` ).
**********************************************************************
output->next_section( `41) Looping across a table without an interest` &&
` in the table content` ).
@@ -1121,6 +1290,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( |There are { num } lines in the table | &&
|fulfilling the condition.| ).
**********************************************************************
output->next_section( `42) Loop with table key specification` ).
DATA it_st_em TYPE TABLE OF struc1 WITH EMPTY KEY.
@@ -1136,6 +1307,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it_st_em name = `it_st_em` ).
**********************************************************************
output->next_section( `Creating and filling tables using table ` &&
`iterations with FOR and VALUE` ).
output->display( `43) Retrieving values of one column in ` &&
@@ -1152,6 +1325,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = lv_num_a name = `lv_num_a` ).
**********************************************************************
output->next_section( `44) Retrieving values of one column in ` &&
`an internal table based on conditions` ).
@@ -1160,6 +1335,7 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = lv_num_b name = `lv_num_b` ).
**********************************************************************
output->next_section( `45) Looping across 2 tables ` &&
`and retrieving values based on conditions` ).
@@ -1174,6 +1350,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = itab_for_2tab name = `itab_for_2tab` ).
**********************************************************************
output->next_section( `46) Retrieving and changing values from an ` &&
`internal tables sequentially` ).
DATA(it_changed) = VALUE tabtype( FOR ls5 IN it_so_sec
@@ -1218,6 +1396,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it1 name = `it1` ).
output->display( input = it2 name = `it2` ).
**********************************************************************
output->next_section( `47) Sorting by primary table key` ).
"Primary key: component a
@@ -1225,6 +1405,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it1 name = `it1` ).
**********************************************************************
output->next_section( `48) Sorting by primary table key in ascending` &&
` order` ).
@@ -1234,6 +1416,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it1 name = `it1` ).
**********************************************************************
output->next_section( `49) Sorting by primary table key respecting all ` &&
`non-numeric fields` ).
@@ -1248,6 +1432,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
"SORT it3.
"output->display( input = it3 name = `it3` ).
**********************************************************************
output->next_section( `50) Sorting by primary table key in ` &&
`descending order` ).
@@ -1256,6 +1442,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it1 name = `it1` ).
**********************************************************************
output->next_section( `51) Sorting by explicitly specified component (1)` ).
"Here, the component is the primary table key.
"The sorting result is the same as above.
@@ -1263,6 +1451,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it1 name = `it1` ).
**********************************************************************
output->next_section( `52) Sorting by explicitly specified component (2)` ).
"Sorting by arbitrary, non-key field
@@ -1270,6 +1460,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it1 name = `it1` ).
**********************************************************************
output->next_section( `53) Sorting by multiple explicitly specified` &&
` components` ).
@@ -1278,6 +1470,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it1 name = `it1` ).
**********************************************************************
output->next_section( `54) Sorting by respecting the values of all` &&
` components` ).
@@ -1286,6 +1480,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it1 name = `it1` ).
**********************************************************************
output->next_section( `Modifying internal table content` ).
output->display( `Internal table content before modifications` ).
@@ -1298,6 +1494,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
"Hashed table
output->display( input = it_ha_sec name = `it_ha_sec` ).
**********************************************************************
output->next_section( `55) Directly modifying recently read table lines` ).
"READ TABLE
@@ -1315,6 +1513,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it_so_sec[ 1 ] name = `it_so_sec[ 1 ]` ).
output->display( input = it_st[ 1 ] name = `it_st[ 1 ]` ).
**********************************************************************
output->next_section( `56) Modifying internal table content using MODIFY` ).
"Modifying table lines via key values
"Line that is used to modify internal table
@@ -1367,6 +1567,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it_so_sec name = `it_so_sec` ).
output->display( input = it_ha_sec name = `it_ha_sec` ).
**********************************************************************
output->next_section( `57) Deleting internal table content using DELETE` ).
"Deleting via index
"Primary table index is used implicitly.
@@ -1406,6 +1608,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it_so_sec name = `it_so_sec` ).
output->display( input = it_ha_sec name = `it_ha_sec` ).
**********************************************************************
output->next_section( `Deleting adjacent duplicate entries` ).
output->display( `Original table content (restored before` &&
` each of the following examples)` ).
@@ -1429,6 +1633,7 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it_st2 name = `it_st2` ).
**********************************************************************
output->display( `58) Deleting adjacent duplicates based on` &&
` primary table key` ).
@@ -1441,6 +1646,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
it_st2 = it_st.
**********************************************************************
output->next_section( `59) Deleting adjacent duplicates by comparing ` &&
`all field values` ).
@@ -1450,6 +1657,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
it_st2 = it_st.
**********************************************************************
output->next_section( `60) Deleting adjacent duplicates by comparing ` &&
`specific field values` ).
@@ -1459,6 +1668,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
it_st2 = it_st.
**********************************************************************
output->next_section( `61) Deleting adjacent duplicates by using a` &&
` table key` ).
@@ -1467,6 +1678,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = it_st2 name = `it_st2` ).
**********************************************************************
output->next_section( `62) Deleting the entire internal table content` ).
CLEAR it_st.
@@ -1474,8 +1687,17 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
"Additionally, FREE releases memory space.
FREE it_st2.
"Excursion: Assigning an empty constructor expression with VALUE clears
"the internal table.
DATA(it_str) = VALUE string_table( ( `a` ) ( `b` ) ( `c` ) ).
it_str = VALUE #( ).
output->display( input = it_st name = `it_st` ).
output->display( input = it_st2 name = `it_st2` ).
output->display( input = it_str name = `it_str` ).
**********************************************************************
output->next_section( `Excursions` ).
output->display( `63) Secondary table keys and hashed tables` ).
@@ -1515,6 +1737,8 @@ CLASS ZCL_DEMO_ABAP_INTERNAL_TABLES IMPLEMENTATION.
output->display( input = line_of_ht name = `line_of_ht` ).
**********************************************************************
output->next_section( `64) Empty keys in internal table created inline` ).
"This example visualizes the fact that when using an inline
"construction like INTO TABLE @DATA(itab) in SELECT statements, the