Oracle SQL Developer

Create/Edit Table (with advanced options)Tablespaces: Available and Selected tablespaces for storage of the data in asubpartition.Subpartition Templates: Specifications (subpartition templates) to control theplacement of rows in each subpartition. Click the Add (+) icon to add a subpartitiontemplate that is appropriate for the subpartition type.Subpartition Details: For each subpartition template, specify a name and (if relevant)a value or set of values that is appropriate for the subpartition type.Storage: Enables you to specify a tablespace for the subpartition.Partition Definitions tabDefines each partition for a partitioned table. The options depend on the partitiontype, and might include the following.Partitions: Specifications to control the placement of rows in each partition. Click theAdd (+) icon to add a partition specification that is appropriate for the partition type.Partition Details: For each partition specification, specify a name and (if relevant) avalue or set of values that is appropriate for the subpartition type.Storage: Enables you to specify a tablespace for the partition.Subpartitions: Enables you to specify subpartition information.Index Organized Properties tabSpecifies options for an index-organized table, which is a table in which the rows,both primary key column values and nonkey column values, are maintained in anindex built on the primary key. Index-organized tables are best suited for primarykey-based access and manipulation.PCTTHRESHOLD: The percentage of space reserved in the index block for anindex-organized table row; must be large enough to hold the primary key. All trailingcolumns of a row, starting with the column that causes the specified threshold to beexceeded, are stored in the overflow segment. PCTTHRESHOLD must be a value from1 to 50; the default is 50.Key Compression: If this option is checked, key compression is enabled, whicheliminates repeated occurrence of primary key column values in index-organizedtables. In the box to the right of this field, you can specify the prefix length, which isthe number of prefix columns to compress. (This value can be from 1 to the number ofprimary key columns minus 1; the default prefix length is the number of primary keycolumns minus 1.)Include Column: Column at which to divide an index-organized table row into indexand overflow portions. The primary key columns are always stored in the index. TheInclude Column can be either the last primary key column or any non-primary-keycolumn. All non-primary-key columns that follow the Include Column are stored inthe overflow data segment.Mapping Table: If this option is checked, SQL Developer creates a mapping of local tophysical ROWIDs and store them in a heap-organized table. This mapping is neededin order to create a bitmap index on the index-organized table. If the index-organizedtable is partitioned, then the mapping table is also partitioned and its partitions havethe same name and physical attributes as the base table partitions.Overflow: Specifications for the overflow segment. The options are the same as for theStorage Options tab.Dialog Boxes for Creating/Editing Objects 3-15