Answer by Tariq Rahiman
The optimizer mode can be set at the system-wide level, for an individual session, or for a specific SQL statement:alter system set optimizer_mode=first_rows_10; alter session set optimizer_goal =...
View ArticleAnswer by KillerDBA
According to this, if you're on 10g, the cost-based optimizer is the only optimizer:TechRepublicso it's "enabled" by default.I also found this, referring to the 8i release:Oracle-Basewhich says:Rule...
View ArticleAnswer by Tariq Rahiman
The optimizer mode can be set at the system-wide level, for an individual session, or for a specific SQL statement:alter system set optimizer_mode=first_rows_10; alter session set optimizer_goal =...
View ArticleAnswer by KillerDBA
According to this, if you're on 10g, the cost-based optimizer is the only optimizer:TechRepublicso it's "enabled" by default.I also found this, referring to the 8i release:Oracle-Basewhich says:Rule...
View Article