Inventor
CHAKKAPPEN SUNIL P
US13 patents
⚠️ This page may combine multiple inventors who share the name “CHAKKAPPEN SUNIL P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ORACLE INT CORP
12 patentsUS10372706B2Aug 6, 2019
Tracking and maintaining expression statistics across database queries
ORACLE INT CORP78 citations96
US9727609B2Aug 8, 2017
Triggering hard parses
ORACLE INT CORP14 citations92
US11321317B2May 3, 2022
Leveraging query-specific statistics in non-equivalent queries
ORACLE INT CORP4 citations84
US7636731B2Dec 22, 2009
Approximating a database statistic
ORACLE INT CORP17 citations84
US7603339B2Oct 13, 2009
Merging synopses to determine number of distinct values in large databases
ORACLE INT CORP14 citations84
US11907218B1Feb 20, 2024
Automatic prevention of plan regressions
ORACLE INT CORP2 citations67
US12111828B2Oct 8, 2024
Method and system to implement error handling with fine-grained SQL hints
ORACLE INT CORP1 citations61
US11113282B2Sep 7, 2021
Online optimizer statistics maintenance during load
ORACLE INT CORP0 citations61
US11561973B2Jan 24, 2023
Statistics based query transformation
ORACLE INT CORP0 citations60
US11403295B2Aug 2, 2022
Creating hybrid and top-frequency histograms
ORACLE INT CORP0 citations58
US9471631B2Oct 18, 2016
Creating and using data that indicates misestimates of actual costs
ORACLE INT CORP2 citations58
US10353897B2Jul 16, 2019
One-pass join size estimation with correlated sampling
ORACLE INT CORP0 citations36