Retrieves rows from a table using ROWIDs from an index
This operation was introduced in Oracle 8.0 replacing TABLE ACCESS (BY ROWID)
This operation is implemented in the following versions
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This example was developed using Oracle 9.2.0.1 on Windows 2000
This example requires the following table definition
CREATE TABLE t1 (c1 NUMBER,c2 NUMBER); CREATE INDEX i1 ON t1 (c1)
The table does not need to be analysed
The statement
SELECT /*+ INDEX (t1,i1) */ c2 FROM t1 WHERE c1 = 0;
generates the following execution plan
0 SELECT STATEMENT Optimizer=CHOOSE 1 0 TABLE ACCESS (BY INDEX ROWID) OF 'T1' 2 1 INDEX (RANGE SCAN) OF 'I1' (NON-UNIQUE)