FRAGMENT BY clause
Use the FRAGMENT BY clause to create a fragmented table and to specify its storage distribution scheme. The keywords PARTITION BY are a synonym for FRAGMENT BY.
This syntax fragment is part of the Storage options.
FRAGMENT BY clause for tables
Notes:
- 1 See Expression Fragment Clause
- 2 See Interval fragment clause
- 3 See List fragment clause
| Element | Description | Restrictions | Syntax |
|---|---|---|---|
| column | Column to which to apply the fragmentation strategy | Must be a column within the table | Identifier |
| dbspace | Dbspace to store the table fragment | You can specify no more than 2,048 dbspaces. All dbspaces that store the fragments must have the same page size. | Identifier |
| fragment _key | Cast, column, or function expression on a table column. This is the expression on which the table is fragmented. | Columns must be from the current table only | Expression |
| partition | Name declared here for a fragment | Must be unique among the names of fragments of the table | Identifier |
When you fragment a table, the IN keyword is followed by the name of the storage space where a table fragment is to be stored.