Use theCREATEINDEXstatement to create an index on: One or more columns of a table, a partitioned table, an index-organized table, or a cluster One or more scalar typed object attributes of a table or a cluster A nested table storage table for indexing a nested table column Anindexis a ...
Use the CREATE INDEX statement to create an index on: One or more columns of a table, a partitioned table, an index-organized table, or a cluster One or more scalar typed object attributes of a table or a cluster A nested table storage table for indexing a nested table column An...
在OceanBase 数据库 Oracle 模式下,如果删除表中的任一索引列,则所创建的索引失效。 语法 CREATE[UNIQUE]INDEXindex_name ONtable_name(index_col_name,...)[index_type][index_options]index_type:USINGBTREEindex_options:index_option[index_option...]index_option:GLOBAL|LOCAL|COMMENT'str...
If you use the CREATE TABLE syntax to create an index on a partitioned table, the index will be created on each partition or subpartition. If the table definition includes the SUBPARTITION BY clause, each partition in the table will have a minimum of one subpartition. Each subpartition can ...
If I add new rows on partitioned table, as will be rebuild index? I want to add new partition (subpartition) and create index on new partition later. please show me code, how to do it. Sorry, you can't reply to this topic. It has been closed....
To create a unique index on 'cust_code' column in the table 'customer', the following SQL statement can be used : CREATE UNIQUE INDEX custcode ON customer(cust_code); Output: Create Index in MySQL, PostgreSQL, Oracle, SQL Server
Indexes on a partitioned table can be classified into local indexes and global indexes. A local index is created on data in a single partition. The key-value pairs of the index and the data in the table are in a one-to-one match. Each index partition maps to one table partition. They...
index_attributes 支持反向索引 REVERSE 属性。示例如下: CREATE INDEX IDX ON T(C) REVERSE; 支持global_partitioned_index 子句定义 global 索引分区。global_partitioned_index 的语法如下: table_index_clause: [ schema. ] table [ t_alias ] (index_expr [ ASC | DESC ] [, index_expr [ ASC | DESC...
Database version - 9.2.0.8 Create Partitioned table which PARTITION BY RANGE (EOW_DATE column which is of data type date) and then SUBPARTITION BY HASH (store column of number datatype) Below are the list of columns Name Null? Type ...
To enable a unique or primary key constraint, you must have the privileges necessary to create an index on the table. You need these privileges because Oracle Database creates an index on the columns of the unique or primary key in the schema containing the table. ...