ABAP Keyword Documentation → ABAP - Reference → Obsolete Language Elements → Obsolete Processing of External Data → Obsolete Database Access → Obsolete Access Statements
LOOP AT dbtab
Other versions: 7.31 | 7.40 | 7.54
Obsolete Syntax
LOOP AT { dbtab | *dbtab } [VERSION vers]. ... ENDLOOP.
Addition
Effect
The statements LOOP and ENDLOOP define a loop
around a statement block (not allowed in classes). For dbtab, you must specify
a database table that begins with "T" and has a maximum length of five characters. For the database table dbtab, a
table work area or an
additional table work area must be declared using
the statement TABLES. All components
of the table work area that match the primary key fields of the database table dbtab must be character-type.
In each loop run, the statement LOOP reads a line from the database table
dbtab and assigns its content either to the table work area, or on specification
of *dbtab, to the additional table work area. The lines to be read are determined by the content of the components of the table work area, which correspond with the
primary key fields of the
database table dbtab. Before the first loop run, the content of these components
is taken as the search key, reading from the left, and the database table is searched generically for suitable entries. The search key handles blanks as if they match all values.
If a database table is specified that does not begin with "T", then the first letter is implicitly replaced by "T". The loop is not executed if the database table does not exist
System Fields
| sy-subrc | Meaning |
|---|---|
| 12 | The database table was not found. |
Notes
-
This form of the
LOOP-loop is not allowed in classes. It must be replaced by the statementSELECT. -
The obsolete access statements do not support automatic
client handling. The
client identifier
of a database table must be specified explicitly. The application programs are only to work with data for the current client. In systems with
multitenancy, this is checked by the ABAP runtime environment.
Addition
... VERSION vers
Effect
If the addition VERSION is specified, then the database table dbtab
is not read, and the table whose name is composed of "T" and the content of vers
is read instead. vers expects a data object with a maximum of four characters,
of type c. The content of the row is still assigned to the table work area
of dbtab or *dbtab and its type is cast. If the table work area is too short, a runtime error occurs.
Example
Sequential reading of rows from database table T100.
TABLES t100.
t100 = space.
t100-sprsl = 'E'.
t100-arbgb = 'BC'.
t100-msgnr = '1'.
LOOP AT t100.
...
ENDLOOP.
The Open SQL syntax to be used instead reads:
DATA wa TYPE t100.
SELECT *
FROM t100
INTO wa
WHERE sprsl = 'E' AND
arbgb = 'BC' AND
msgnr LIKE '1%'.
...
ENDSELECT.