DATA - TABLE OF
Short Reference
ABAP Syntax_5
DATA itab { {TYPE [STANDARD]|SORTED|HASHED
TABLE OF [REF TO] type}
| {LIKE [STANDARD]|SORTED|HASHED TABLE OF dobj} }
[ tabkeys ]
[INITIAL SIZE n]
[VALUE IS INITIAL]
[READ-ONLY] .
What does it do? This statement defines an internal table. The definition
of the row type, table category STANDARD
TABLE , SORTED TABLE , or
HASHED TABLE and the initial memory
size INITIAL SIZE corresponds exactly to
the definition of table categories in the section
TYPES - TABLE OF . Using DATA , these additions
generate a bound table type. The generic types ANY TABLE and
INDEX TABLE cannot be used with DATA .
tabkeys is used to define the
table keys of the internal table, which,
unlike data types, cannot be generic.
Latest notes: When an internal table is created as a data object, only
the administration entry for an internal table is generated. The actual
table rows are not inserted until runtime.
Several obsolete variants for declaring standard tables exist,
described under Obsolete Declarations .
In particular, note the obsolete use of the additions
WITH HEADER LINE and
OCCURS .
When an internal table is defined, the start value after the
VALUE addition must be IS INITIAL
.
Example ABAP Coding Declares an internal hashed table. The row type
corresponds to the structure of the database table
SPFLI . Two key fields are defined
for the primary table key. The other statements demonstrate how the
table is filled with rows from database table
SPFLI and how a row is read.
DATA: spfli_tab TYPE HASHED TABLE OF spfli
WITH UNIQUE KEY carrid connid,
spfli_wa LIKE LINE OF spfli_tab.
SELECT *
FROM spfli
INTO TABLE spfli_tab
WHERE carrid = 'LH'.
spfli_wa = spfli_tab[ KEY primary_key
carrid = 'LH' connid = '0400' ].
...
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