Hello Amerjit,
Thanks for answer. In pursuance of your questions...
1) I processing IDOCs with flag "Trigger by background program".
2) Oracle version: 11.2.0.4 SBP 11.2.0.4.4 201411 containing CPUOct2014
3) Explain plan of update statement:
4) table BPGE has 1863 rows, and this is constant. Segments size of table: 384 Kb.
Best regards,
Igor Goleinov