The administration of unique secondary keys is updated after modifications are made to individual rows using field symbols the next time the internal table is accessed Otherwise the key fields are not read-only. In which the secondary key is specified after USING KEY. Table key, however, are only read-only while the secondary table is being used. Row (for example, as a target field of assignments or as actual parameters for output parameters), an exception is always raised. If writes are performed in write positions across the entire table The processing statementsįor internal tables check whether writes are performed on individual key fields and a corresponding This would invalidate internal table administration. The key fields of the primary table key ofĪnd must not be modified. The following limitations apply to modifying key fields of the If no table row is found, remains unchanged or initial.Īs long as the field symbol points to the row, assignments to the field symbol modify the row in the internal table. The inline declaration cannot be specified after the addition CASTING.
Where a field symbol with the row type of the internal table is declared. The same exceptions can be raised here as with ASSIGN. The field symbol must be either fully typed, or typed with one of the generic predefined ABAP typesĬast to the type of the field symbol. The optional additionĬASTING can be used to perform a casting. Table expression, since this value no longer exists once the statement has been executed.Īn existing field symbol whose typing matches the row type of the internal table. The addition cannot be specified if itab is specified as the return value or result of a The field symbol points to the table row in the memory. The found table row is assigned to a field symbol. MODIFY sflight_tab FROM sflight_wa INDEX sy-tabix. Sflight_wa-price = sflight_wa-price * '0.9'. PARAMETERS: p_carrid TYPE sflight-carrid,ĭATA sflight_tab TYPE SORTED TABLE OF sflight After the reference has been successfully assigned, the content of a component of the row is changed in the internal table. Reads a particular row in the internal table sflight_tab and assigns it toĪ work area sflight_wa (declared inline). Obsolete key specification, which also evaluates the header line. The statement is then implicitly enhanced by the addition of INTO itab. Obsolete short form exists where INTO wa can be omitted if the internal table has a Occurs in the assignment to wa, the associated runtime error occurs directly and the exception cannot be handled using CX_SY_CONVERSION_ERROR.Īre used, the work area wa must be compatible with the row type of the internal table. If no row is found, wa remains unchanged or initial. The row type must be statically recognizable in full. Where a work area with the row type of the internal table is declared. Incompatible with the row type of the internal table, the content of the table row is converted to the data type of the work area in accordance with the With the data type of the work area or must be able to be converted to this type. The following can be specified for wa:Īn existing work area that matches the row type of the internal table.
The content of the found row is assigned to the work area wa. Outside of classes, the addition INTO can also be specified together with TRANSPORTING NO FIELDS, but this produces a warning in the syntax check This addition can be used regardless of which way itab is specified. The addition TRANSPORTING NO FIELDS specifies that only the relevant systemįields are filled. This addition is possibly only if an existing internal table is specified for itab. The addition REFERENCE INTO creates a reference to the found row in a reference The addition ASSIGNING assigns the found row to a field symbol.
The addition INTO assigns the content of the found row to a work area. There are four alternatives for the output behavior: Processing Statements for Internal Tables →ĭefines the output behavior of a READ statement for an internal table. SAP NetWeaver AS ABAP Release 750, ©Copyright 2016 SAP AG.
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