table index (BC-ABA)

Index of an internal table managed by the ABAP runtime environment. There is a primary table index for index tables and secondary table indexes for the administration of sorted secondary table keys. The row numbers of each table index start at 1 and continue serially and without gaps to the current number of rows in the table. If necessary, the conversion from a physical index to a logical index is made. Changes to a logical index need more runtime. The logical index is created when a row is inserted before another, the sequence of the table rows changes, or a table row of the table index (other than the last row) is deleted.