GLPPOS Posting Performance issue.
GLPPOS Posting Performance issue and checked the trace file as below:
STAT #4578908304 id=3 cnt=4771 pid=2 pos=1 obj=3411597 op='TABLE ACCESS FULL GL_POSTING_INTERIM_689419 (cr=60 pr=60 pw=0 time=51082 us cost=16 size=287615 card=4715)'
STAT #4578908304 id=4 cnt=4761 pid=2 pos=2 obj=35308 op='TABLE ACCESS BY INDEX ROWID GL_BALANCES (cr=58899579 pr=116 pw=0 time=2662595559 us cost=2 size=31 card=1)'
STAT #4578908304 id=5 cnt=3456441924 pid=4 pos=1 obj=35317 op='INDEX RANGE SCAN GL_BALANCES_N2 (cr=16291501 pr=19 pw=0 time=1415289268 us cost=2 size=0 card=549163)'
WAIT #45
Scans on GL_BALANCES_N2 and GL_BALANCES_N1 INDEX IS NOT USED.
How to improve this kind of performance issue?