Hint-based TuningPlan Hint OptimizationJoin Order HintsJoin Operation HintsRows HintsScan Operation HintsSublink Name HintsHint Errors, Conflicts, and Other WarningsOptimizer GUC Parameter HintsHint for Selecting the Custom Plan or Generic PlanHint Specifying Not to Expand SubqueriesHint Specifying Not to Use Global Plan CacheHint of Parameterized Paths at the Same LevelHint for Degrading Some Errors to Warnings