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danrega
2024-06-10 16:25:44 +02:00
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05_Constructor_Expressions.md
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@@ -1231,100 +1231,100 @@ ENDCASE.
Examples:
```abap
"Internal tables to work with in the example
TYPES: BEGIN OF fi_str,
a TYPE i,
b TYPE c LENGTH 3,
c TYPE c LENGTH 3,
END OF fi_str.
"Internal tables to work with in the example
TYPES: BEGIN OF fi_str,
a TYPE i,
b TYPE c LENGTH 3,
c TYPE c LENGTH 3,
END OF fi_str.
DATA fi_tab1 TYPE SORTED TABLE OF fi_str WITH NON-UNIQUE KEY a.
DATA fi_tab2 TYPE STANDARD TABLE OF fi_str WITH NON-UNIQUE SORTED KEY sec_key COMPONENTS a.
DATA fi_tab3 TYPE HASHED TABLE OF fi_str WITH UNIQUE KEY a.
DATA fi_tab4 TYPE STANDARD TABLE OF fi_str WITH UNIQUE HASHED KEY sec_hash_key COMPONENTS a b.
DATA fi_tab1 TYPE SORTED TABLE OF fi_str WITH NON-UNIQUE KEY a.
DATA fi_tab2 TYPE STANDARD TABLE OF fi_str WITH NON-UNIQUE SORTED KEY sec_key COMPONENTS a.
DATA fi_tab3 TYPE HASHED TABLE OF fi_str WITH UNIQUE KEY a.
DATA fi_tab4 TYPE STANDARD TABLE OF fi_str WITH UNIQUE HASHED KEY sec_hash_key COMPONENTS a b.
"Populating internal tables with demo data
fi_tab1 = VALUE #( ( a = 1 b = 'aaa' c = 'abc' )
( a = 2 b = 'bbb' c = 'def' )
( a = 3 b = 'ccc' c = 'hij' )
( a = 4 b = 'ddd' c = 'klm' )
( a = 5 b = 'eee' c = 'nop' ) ).
"Populating internal tables with demo data
fi_tab1 = VALUE #( ( a = 1 b = 'aaa' c = 'abc' )
( a = 2 b = 'bbb' c = 'def' )
( a = 3 b = 'ccc' c = 'hij' )
( a = 4 b = 'ddd' c = 'klm' )
( a = 5 b = 'eee' c = 'nop' ) ).
fi_tab2 = fi_tab1.
fi_tab3 = fi_tab1.
fi_tab4 = fi_tab1.
fi_tab2 = fi_tab1.
fi_tab3 = fi_tab1.
fi_tab4 = fi_tab1.
"---------------- Basic form: Filtering using single values ----------------
"Syntax options for using a WHERE condition and the table key
"---------------- Basic form: Filtering using single values ----------------
"Syntax options for using a WHERE condition and the table key
"Using the primary table key without specifying USING KEY
DATA(f1) = FILTER #( fi_tab1 WHERE a >= 4 ).
"Using the primary table key without specifying USING KEY
DATA(f1) = FILTER #( fi_tab1 WHERE a >= 4 ).
*A B C
*4 ddd klm
*5 eee nop
"Using the primary table key by specifying the default name primary_key
"and specifying USING KEY; the result in the example is the same as above
DATA(f2) = FILTER #( fi_tab1 USING KEY primary_key WHERE a >= 4 ).
"Using the primary table key by specifying the default name primary_key
"and specifying USING KEY; the result in the example is the same as above
DATA(f2) = FILTER #( fi_tab1 USING KEY primary_key WHERE a >= 4 ).
*A B C
*4 ddd klm
*5 eee nop
"Using the secondary table key by specifying its name and USING KEY
DATA(f3) = FILTER #( fi_tab2 USING KEY sec_key WHERE a < 3 ).
"Using the secondary table key by specifying its name and USING KEY
DATA(f3) = FILTER #( fi_tab2 USING KEY sec_key WHERE a < 3 ).
*A B C
*1 aaa abc
*2 bbb def
"Note: When using a table with hash key, only the comparison operator =
"can be used in the WHERE clause
"The example uses the primary table key, which is a hash key.
DATA(f4) = FILTER #( fi_tab3 WHERE a = 3 ).
"Note: When using a table with hash key, only the comparison operator =
"can be used in the WHERE clause
"The example uses the primary table key, which is a hash key.
DATA(f4) = FILTER #( fi_tab3 WHERE a = 3 ).
*A B C
*3 ccc hij
"The example table used in the following example has two components specified
"for the table key. The key must be specified in full listing all components
"and using AND.
DATA(f5) = FILTER #( fi_tab4 USING KEY sec_hash_key WHERE a = 3 AND b = 'ccc' ).
"The example table used in the following example has two components specified
"for the table key. The key must be specified in full listing all components
"and using AND.
DATA(f5) = FILTER #( fi_tab4 USING KEY sec_hash_key WHERE a = 3 AND b = 'ccc' ).
*A B C
*3 ccc hij
"Examples with the EXCEPT addition
DATA(f6) = FILTER #( fi_tab1 EXCEPT WHERE a >= 4 ).
"Examples with the EXCEPT addition
DATA(f6) = FILTER #( fi_tab1 EXCEPT WHERE a >= 4 ).
*A B C
*1 aaa abc
*2 bbb def
*3 ccc hij
DATA(f7) = FILTER #( fi_tab1 EXCEPT USING KEY primary_key WHERE a >= 4 ).
DATA(f7) = FILTER #( fi_tab1 EXCEPT USING KEY primary_key WHERE a >= 4 ).
*A B C
*1 aaa abc
*2 bbb def
*3 ccc hij
"Secondary table key specified after USING KEY
DATA(f8) = FILTER #( fi_tab2 USING KEY sec_key WHERE a <= 2 ).
"Secondary table key specified after USING KEY
DATA(f8) = FILTER #( fi_tab2 USING KEY sec_key WHERE a <= 2 ).
*A B C
*1 aaa abc
*2 bbb def
DATA(f9) = FILTER #( fi_tab2 EXCEPT USING KEY sec_key WHERE a >= 4 ).
DATA(f9) = FILTER #( fi_tab2 EXCEPT USING KEY sec_key WHERE a >= 4 ).
*A B C
*1 aaa abc
*2 bbb def
*3 ccc hij
DATA(f10) = FILTER #( fi_tab4 EXCEPT USING KEY sec_hash_key WHERE a = 3 AND b = 'ccc' ).
DATA(f10) = FILTER #( fi_tab4 EXCEPT USING KEY sec_hash_key WHERE a = 3 AND b = 'ccc' ).
*A B C
*1 aaa abc
@@ -1332,47 +1332,47 @@ Examples:
*4 ddd klm
*5 eee nop
"---------------- Basic form: Filtering using a filter table ----------------
"---------------- Basic form: Filtering using a filter table ----------------
"In the WHERE condition, the columns of source and filter table are compared.
"Those lines in the source table are used for which at least one line in the
"filter table meets the condition. EXCEPT and USING KEY are also possible.
"The following examples use simple tables with elementary line types. Note
"that the line types of the tables in a FILTER epxression need not be identical.
"Declaring and filling filter tables
DATA filter_tab1 TYPE SORTED TABLE OF i WITH NON-UNIQUE KEY table_line.
"In the WHERE condition, the columns of source and filter table are compared.
"Those lines in the source table are used for which at least one line in the
"filter table meets the condition. EXCEPT and USING KEY are also possible.
"The following examples use simple tables with elementary line types. Note
"that the line types of the tables in a FILTER epxression need not be identical.
"Declaring and filling filter tables
DATA filter_tab1 TYPE SORTED TABLE OF i WITH NON-UNIQUE KEY table_line.
DATA filter_tab2 TYPE STANDARD TABLE OF i
WITH EMPTY KEY
WITH UNIQUE SORTED KEY line COMPONENTS table_line.
DATA filter_tab2 TYPE STANDARD TABLE OF i
WITH EMPTY KEY
WITH UNIQUE SORTED KEY line COMPONENTS table_line.
filter_tab1 = VALUE #( ( 3 ) ( 5 ) ).
filter_tab2 = filter_tab1.
filter_tab1 = VALUE #( ( 3 ) ( 5 ) ).
filter_tab2 = filter_tab1.
"No further additions specified
DATA(f11) = FILTER #( fi_tab1 IN filter_tab1 WHERE a = table_line ).
"No further additions specified
DATA(f11) = FILTER #( fi_tab1 IN filter_tab1 WHERE a = table_line ).
*A B C
*3 ccc hij
*5 eee nop
"Specifying EXCEPT addition
DATA(f12) = FILTER #( fi_tab1 EXCEPT IN filter_tab1 WHERE a = table_line ).
"Specifying EXCEPT addition
DATA(f12) = FILTER #( fi_tab1 EXCEPT IN filter_tab1 WHERE a = table_line ).
*A B C
*1 aaa abc
*2 bbb def
*4 ddd klm
"Specifying USING KEY for the filter table
DATA(f13) = FILTER #( fi_tab2 IN filter_tab2 USING KEY line WHERE a = table_line ).
"Specifying USING KEY for the filter table
DATA(f13) = FILTER #( fi_tab2 IN filter_tab2 USING KEY line WHERE a = table_line ).
*A B C
*3 ccc hij
*5 eee nop
"Specifying USING KEY for the source table, including EXCEPT
DATA(f14) = FILTER #( fi_tab2 USING KEY sec_key EXCEPT IN filter_tab2 WHERE a = table_line ).
"Specifying USING KEY for the source table, including EXCEPT
DATA(f14) = FILTER #( fi_tab2 USING KEY sec_key EXCEPT IN filter_tab2 WHERE a = table_line ).
*A B C
*1 aaa abc