Oracle logo

Oracle Interview Question Bank

Oracle's loops split along two clear axes: OCI (Cloud Infrastructure) runs a fairly standard LC + system-design loop with heavy Indian interviewer rotation, while OHAI (Oracle Health, the post-Cerner business unit) leans into OOD/class-design problems built around healthcare scenarios. Coding bars are mostly easy-to-medium, but interviewer variance and post-loop down-leveling / ghosting are unusually common — the loop result often determines the eventual level, not just the yes/no.

More
35
Before you start
Showing 29 of 29
Coding·30 min
Single reportFree preview

Set Matrix Zeros (in-place)

Given a 2D integer matrix, set every cell sharing a row or column with a zero to zero, in place. Asked as the coding portion of an OCI IC4 phone screen with two follow-ups: handle ragged (non-rectangular) input, and generalise to char[][] with an arbitrary marker value.

SWE
Infra Eng
array
grid
hashmap
medium
Last asked 2025-09-111 related discussion

Oracle Featured Guides