Oracle Structure Indexes
Oracle Index Rebuild and Coalesce with ALTER INDEX
Jun 6, 2026 / · 6 min read · ALTER INDEX Index Rebuild Index Coalesce Index Maintenance Oracle Structure Oracle DBA Scripts ·Oracle Index Rebuild and Coalesce with ALTER INDEX Purpose Over months of heavy delete and update activity, a B-tree index can accumulate empty and half-full leaf blocks. The index keeps working, but it grows wider than the data it points to, so range scans read more blocks than they need and the segment holds space …
Read MoreQuickly Identify Indexed Columns in Oracle Database Tables
Mar 19, 2024 / · 3 min read · oracle database sql performance indexing dba_ind_columns user_ind_columns ·Identify Indexed Columns in Oracle Database Tables Optimizing queries in Oracle Database often involves understanding how indexes are used. This post will guide you through a powerful SQL code snippet that helps you efficiently identify the columns included in a specific index. Sample SQL Command 1select column_name …
Read MoreOracle: Identify Large Indexes with SQL and DBA_SEGMENTS
Mar 17, 2024 / · 4 min read · dba_indexes dba_segments storage optimization peformance sql dba_ts_quotas ·Optimizing Your Oracle Database: A Guide to Identifying Large Indexes with SQL Keeping your Oracle Database running smoothly requires constant monitoring and optimization. Indexes, a crucial component for efficient data retrieval, can sometimes grow excessively, impacting performance. This blog post dives into a …
Read More