对于Partition表而言,是否Global Index 和 Local Index 可以针对同一个字段建立? 实验证明,对单独的列而言,要么建立 Global Index, 要么建立 Local Index。不能既建立 Global Index, 又建立 Local Index === Test Case === ### Testcase - 0809 - 1 It is not possible to create both Global Index and ...
features associated with Oracle partitioned tables. This note aims to set out the definitions of each index type. A partitioned table may have either partitioned or non-partitioned indexes; a non-partitioned table may have partitioned indexes. In practice, though, most partitioned indexes will ...
The different types of partitioned indexes are among the least-understood features associated with Oracle partitioned tables. This note aims to set out the definitions of each index type. A partitioned table may have either partitioned or non-partitioned indexes; a non-partitioned table may have...
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local or global index on it. Local index is partitioned in such a way that have the same quantity of partitions (1:1) and indexes for rows of one table partition stored in one and only one index partition. In this case operation ...
obclient [TPCC]> create index t1_part_ind2 on t1_part(c1,id) local; Query OK, 0 rows affected (0.269 sec) 下面SQL 是在 SYS 租户里观察这个表和索引用的。 select t1.CON_ID,t1.owner,t1.PARTITIONED tbl_partitioned,t1.table_name,t1.status,i1.table_type, i1.index_name, i1.uniquene...
index partition, a specific key within it may map to different partitions of the primary table (in the case of duplicate index keys), resulting in a many-to-many correspondence between index partitions and primary table partitions. The structure of a global partitioned index is illustrated in ...
A global index can be partitioned by the range or hash method, and it can be defined on any type of a) partitioned or b) non-partitioned table. Local Index: A local index is a one-to-one mapping between an index partition and a table partition. In general, local indexes allow ...
statement can be used to regenerate a single partition in a local or global partitioned index. This saves you from having to perform DROP INDEX and then CREATE INDEX, which would affect all partitions in the index. "ALTER INDEX REBUILD PARTITION" has four important applications: To recluste...
“注册表”“HKEY_LOCAL_MACHINE”下“Software”下的“CTAIS”注册项下主键“Oracle”下哪项设置不正确时。在CTAIS系统用户登录时,无法连接后台Oracle数据库,从而无法登录CTAIS系统。() A.SCHEMA B.DBPARM C.SERVER D.DBMS 免费查看参考答案及解析 题目