This article explains how to use Oracle Data Pump's ESTIMATE and ESTIMATE_ONLY parameters to assess the size of a 1 TB production database for migration, compares BLOCKS and STATISTICS estimation methods, and details best practices for gathering accurate optimizer statistics with ANALYZE and DBMS_STATS.
This guide provides a comprehensive overview of Oracle Data Pump utilities, detailing how to create directories, use expdp and impdp commands for exporting and importing schemas, tables, and full databases, explaining key parameters, interactive mode, and common error resolutions.
This article explains why exporting a schema with Oracle Data Pump can leave a table's primary‑key sequence behind the actual data, demonstrates the problem with a live test, and provides a step‑by‑step fix by resetting the sequence to the maximum key value.
This guide introduces the free gDUL 3.0 tool for Oracle DBAs, detailing its export capabilities, directory layout, configurable parameters, platform‑specific setup tips, and step‑by‑step usage to recover data from inaccessible databases.
