Get Example source ABAP code based on a different SAP table
• • READ TABLE itab
READ TABLE, index Short Reference
ABAP_SYNTAX ... • idx $[USING KEY keyname$] ...
ABAP Addition ... USING KEY keyname
What does it do? Using the • addition, the READ statement reads the line in the line number specified in idx in a table index. idx is a numeric expression position with the operand type i. If the value of idx is less than or equal to 0 or greater than the number of table lines, no line is read and sy-subrc is set to 4. After a successful read, the system field sy-tabix contains the line number specified in idx in the primary or secondary table index used. If the addition USING KEY is not used, the addition • can only be specified for index tables and determines the line to be read from the primary table index.
Latest notes: Table expressions allow corresponding reads to also be performed in operand positions. Here, an index is specified as a numeric argument idx. NON_V5_HINTS ABAP_HINT_END
ABAP_EXAMPLE_VX5 Reading of the first ten lines of the internal table sflight_tab using the primary table index. Instead of the DO loop, a LOOP or a corresponding iteration expression with FOR is used for this purpose. ABEXA 00530 ABAP_EXAMPLE_END • USING KEY READ TABLE itab •
ABAP Addition
What does it do? The addition USING KEY can be used to specify a table key in keyname to specify the table index to be used explicitly. If the table has a sorted secondary key, this can be specified in keyname and the line to be read is then determined from its secondary table index. A secondary hash key cannot be specified. If the primary table key is specified using its name primary_key, the table must be an index table, and the behavior is the same as if USING KEY was not specified.
Latest notes:
If a sorted secondary key exists, the addition • can be used for all table categories, if USING KEY is used.
Table expressions allow corresponding reads to also be performed in operand positions. The table key for an index is specified using KEY keyname •. NON_V5_HINTS ABAP_HINT_END
ABAP_EXAMPLE_VX5 Reading of the first ten lines of the internal table sflight_tab using a secondary table index. Instead of the DO loop, a LOOP or a corresponding iteration expression with FOR is used for this purpose. ABEXA 00531 ABAP_EXAMPLE_END
