统计信息脚本

------------------表统计信息---------------------------------------------------------------------
select t.owner,t.table_name,t.tablespace_name,t.last_analyzed,t.num_rows,t.blocks,t.avg_row_len from dba_tables t;
select t.table_owner,t.table_name,t.partition_name,t.tablespace_name,t.last_analyzed,t.num_rows,t.blocks,t.avg_row_len from dba_tab_partitions t;
select t.table_owner,t.table_name,t.partition_name,t.subpartition_name,t.tablespace_name,t.last_analyzed,t.num_rows,t.blocks,t.avg_row_len from dba_tab_subpartitions t;
------------------索引统计信息---------------------------------------------------------------------
select t.owner,t.index_name,t.table_name,t.tablespace_name,t.last_analyzed,t.blevel,t.leaf_blocks,t.clustering_factor,t.distinct_keys,t.avg_leaf_blocks_per_key,t.avg_data_blocks_per_key,t.num_rows from dba_indexes t;
select t.index_owner,t.index_name,t.partition_name,t.last_analyzed,t.blevel,t.leaf_blocks,t.clustering_factor,t.distinct_keys,t.avg_leaf_blocks_per_key,t.avg_data_blocks_per_key,t.num_rows from dba_ind_partitions t;
select t.index_owner,t.index_name,t.partition_name,t.subpartition_name,t.tablespace_name,t.last_analyzed,t.blevel,t.leaf_blocks,t.clustering_factor,t.distinct_keys,t.avg_leaf_blocks_per_key,t.avg_data_blocks_per_key,t.num_rows from dba_ind_subpartitions t;
------------------列统计信息---------------------------------------------------------------------
select t.owner,t.table_name,t.column_name,t.last_analyzed,t.num_distinct,t.num_nulls,t.low_value,t.high_value,t.density,t.num_buckets from dba_tab_col_statistics t;
select t.owner,t.table_name,t.partition_name,t.t.num_distinct,t.num_nulls,t.low_value,t.high_value,t.density,t.num_buckets from dba_part_col_statistics t;
select t.num_distinct,t.num_nulls,t.low_value,t.last_analyzed,high_value,t.density,t.num_buckets from dba_subpart_col_statistics t;
------------------直方图统计信息----------------------------------------------------------------------
select * from dba_tab_histograms t;
select * from dba_part_histograms t;
select * from dba_subpart_histograms t;
------------------全局统计信息---------------------------------------------------------------------
select t.table_name,t.last_analyzed,t.global_stats from dba_tables t;
select t.table_name,t.partition_name,t.last_analyzed,t.global_stats from dba_tab_partitions t;
select t.table_name,t.partition_name,t.subpartition_name,t.last_analyzed,t.global_stats from dba_tab_subpartitions t;
select t.table_name,t.column_name,t.last_analyzed,t.global_stats from dba_tab_col_statistics t;
select t.table_name,t.partition_name,t.column_name,t.last_analyzed,t.global_stats from dba_part_col_statistics t;
select t.index_name,t.table_name,t.last_analyzed,t.global_stats from dba_indexes t;
select t.index_name,t.partition_name,t.last_analyzed,t.global_stats from dba_ind_partitions t;
select t.index_name,t.partition_name,t.subpartition_name,t.last_analyzed,t.global_stats from dba_ind_subpartitions t;