Oracle Administration

Oracle Statspack Automation: Scheduling Hourly Database Performance Snapshots Oracle Statspack automation provides database administrators with continuous performance monitoring capabilities through scheduled snapshot collection. The spauto.sql script enables automated hourly snapshots that capture essential database …

Oracle Database EXPLAIN PLAN: Complete Guide to SQL Performance Analysis EXPLAIN PLAN is one of Oracle Database's most powerful tools for analyzing SQL query performance and understanding how the Oracle optimizer executes your statements. This comprehensive guide covers everything you need to know about using EXPLAIN …

Oracle Database: Show All Table Constraints for a User using dba_constraints Purpose This Oracle SQL query is designed to retrieve a comprehensive list of all constraints associated with tables owned by a specific user in your Oracle database. Constraints are essential rules that ensure data integrity and consistency. …

Query to Display All Tablespaces Used by A Specified User and The Total Space Occupied (rounded to MB) A schema audit before a migration, a quota review before approving more space, or a tablespace consolidation project all start with the same question: which tablespaces does a specific Oracle user actually touch, and …

Oracle Table Privileges Granted to a Role via role_tab_privs Purpose ROLE_TAB_PRIVS lists the object privileges granted to roles — every table, view, and sequence grant, the precise privilege type, and whether the right covers the entire object or is scoped to a single column. Oracle's reference notes that "Information …