--4.修改子分区模板,并添加分区 --修改子分区名及子分区值ALTERTABLESTRIPE_REGIONAL_SALESSETSUBPARTITION TEMPLATE (SUBPARTITION WESTVALUES('NY','TY'), SUBPARTITION EASTVALUES('LA','NT'));--添加分区altertableSTRIPE_REGIONAL_SALESaddpartition Q6_9999valuesless than (700); 查看已经创建的分区表 --Cre...
(RN); #查询没有索引的表 Select table_name from user_tables where table_name not in (select table_name from user_indexes) Select table_name from user_tables where table_name not in (select table_name from user_ind_columns) #AWR设置每隔30分钟收集一次报告,保留14天的报告 exec DBMS_WORKLOAD...
The highest partition of a global index must have a partition bound, all of whose values are MAXVALUE. This ensures that all rows in the underlying table can be represented in the index. Global prefixed indexes can be unique or nonunique. You cannot add a partition to a global index beca...
Average number of data blocks for each index value (for an index on a table) (AVG_DATA_BLOCKS_PER_KEY) Clustering factor (how well ordered the rows are about the indexed values) (CLUSTERING_FACTOR) (2)TABLE table:对表进行分析,分析的结果会放在USER_TABLES, ALL_TABLES, and DBA_TABLES表中...
INCLUDE=TABLE:"> 'E' "--包含大于字符E的所有表对象 impdp impdp user/passwd@localhost:1521/orcl dumpfile=exp.dmp logfile=imp.log--将exp.dmp导入到user用户下 Table_exists_action=(SKIP/APPEND/TRUNCADE/REPLACE)导入表存在处理(跳过/追加数据/清空并追加/替换表) ...
8-19 Deleting a Table... 8-21 Managing Indexes ...
bitmap indexes, 10-34, 10-39 nulls and, 10-9 parallel query and DML, 10-35 branch blocks, 10-30 B-tree structure of, 10-29 building using an existing index, 10-24 cardinality, 10-35 cluster, 10-54 cannot be partitioned, 11-2 contrasted with table, 10-54 dropping...
2、dba_col_privs用户具有的列对象权限信息dba_role_privs用户具有的角色信息dba_audit_trail审计跟踪记录信息dba_stmt_audit_opts审计设置信息dba_audit_object对象审计结果信息dba_audit_session会话审计结果信息dba_indexes用户方式的索引信息user_开头user_objects用户对象信息user_source数据库用户的一切资源对象信息user...
SQL> ANALYZE TABLE TABLE_NAME COMPUTE STATISTICS FOR ALL INDEXES; 删除统计信息 #删除统计分析数据 ANALYZE TABLE <TABLE_NAME> DELETE STATISTICS; #删除索引对应的统计信息 ANALYZE INDEX <INDEX_NAME> DELETE STATISTICS; #注意:下面这种语法是错误的,见过有些文章有介绍这种方法。
There are built-in functions that allow you to extract individual nodes from the document, and you can also build indexes on any particular node in the XMLType document. Identity datatype Oracle Database 12c introduces the identity datatype, which matches a datatype found in IBM’s DB2 data...